diff options
| author | monty@mysql.com/narttu.mysql.fi <> | 2007-02-23 13:13:55 +0200 |
|---|---|---|
| committer | monty@mysql.com/narttu.mysql.fi <> | 2007-02-23 13:13:55 +0200 |
| commit | f0ae3ce9b97f45b717201764c6af6e4bd4176e5c (patch) | |
| tree | aa523ca58b5c098a79faefb22302aa717f4ae942 /sql | |
| parent | a5051aa4ebaf48fae5f7b6f52889c3c66a12dd23 (diff) | |
| download | mariadb-git-f0ae3ce9b97f45b717201764c6af6e4bd4176e5c.tar.gz | |
Fixed compiler warnings
Fixed compile-pentium64 scripts
Fixed wrong estimate of update_with_key_prefix in sql-bench
Merge bk-internal.mysql.com:/home/bk/mysql-5.1 into mysql.com:/home/my/mysql-5.1
Fixed unsafe define of uint4korr()
Fixed that --extern works with mysql-test-run.pl
Small trivial cleanups
This also fixes a bug in counting number of rows that are updated when we have many simultanous queries
Move all connection handling and command exectuion main loop from sql_parse.cc to sql_connection.cc
Split handle_one_connection() into reusable sub functions.
Split create_new_thread() into reusable sub functions.
Added thread_scheduler; Preliminary interface code for future thread_handling code.
Use 'my_thread_id' for internal thread id's
Make thr_alarm_kill() to depend on thread_id instead of thread
Make thr_abort_locks_for_thread() depend on thread_id instead of thread
In store_globals(), set my_thread_var->id to be thd->thread_id.
Use my_thread_var->id as basis for my_thread_name()
The above changes makes the connection we have between THD and threads more soft.
Added a lot of DBUG_PRINT() and DBUG_ASSERT() functions
Fixed compiler warnings
Fixed core dumps when running with --debug
Removed setting of signal masks (was never used)
Made event code call pthread_exit() (portability fix)
Fixed that event code doesn't call DBUG_xxx functions before my_thread_init() is called.
Made handling of thread_id and thd->variables.pseudo_thread_id uniform.
Removed one common 'not freed memory' warning from mysqltest
Fixed a couple of usage of not initialized warnings (unlikely cases)
Suppress compiler warnings from bdb and (for the moment) warnings from ndb
Diffstat (limited to 'sql')
43 files changed, 1680 insertions, 1463 deletions
diff --git a/sql/CMakeLists.txt b/sql/CMakeLists.txt index 37707fe3963..002aabb91b0 100644 --- a/sql/CMakeLists.txt +++ b/sql/CMakeLists.txt @@ -69,6 +69,7 @@ ADD_EXECUTABLE(mysqld ../sql-common/client.c derror.cc des_key_file.cc sql_tablespace.cc events.cc ../sql-common/my_user.c partition_info.cc rpl_utility.cc rpl_injector.cc sql_locale.cc rpl_rli.cc rpl_mi.cc sql_servers.cc + sql_connect.cc scheduler.cc ${PROJECT_SOURCE_DIR}/sql/sql_yacc.cc ${PROJECT_SOURCE_DIR}/sql/sql_yacc.h ${PROJECT_SOURCE_DIR}/include/mysqld_error.h diff --git a/sql/Makefile.am b/sql/Makefile.am index 43331e3d0c9..c3a692615dd 100644 --- a/sql/Makefile.am +++ b/sql/Makefile.am @@ -64,10 +64,11 @@ noinst_HEADERS = item.h item_func.h item_sum.h item_cmpfunc.h \ tztime.h my_decimal.h\ sp_head.h sp_pcontext.h sp_rcontext.h sp.h sp_cache.h \ parse_file.h sql_view.h sql_trigger.h \ - sql_array.h sql_cursor.h events.h \ + sql_array.h sql_cursor.h events.h scheduler.h \ event_db_repository.h event_queue.h \ - sql_plugin.h authors.h sql_partition.h event_data_objects.h \ - partition_info.h partition_element.h event_scheduler.h \ + sql_plugin.h authors.h \ + event_data_objects.h event_scheduler.h \ + sql_partition.h partition_info.h partition_element.h \ contributors.h sql_servers.h mysqld_SOURCES = sql_lex.cc sql_handler.cc sql_partition.cc \ item.cc item_sum.cc item_buff.cc item_func.cc \ @@ -79,7 +80,8 @@ mysqld_SOURCES = sql_lex.cc sql_handler.cc sql_partition.cc \ lock.cc my_lock.c \ sql_string.cc sql_manager.cc sql_map.cc \ mysqld.cc password.c hash_filo.cc hostname.cc \ - set_var.cc sql_parse.cc sql_yacc.yy \ + sql_connect.cc scheduler.cc sql_parse.cc \ + set_var.cc sql_yacc.yy \ sql_base.cc table.cc sql_select.cc sql_insert.cc \ sql_prepare.cc sql_error.cc sql_locale.cc \ sql_update.cc sql_delete.cc uniques.cc sql_do.cc \ diff --git a/sql/event_scheduler.cc b/sql/event_scheduler.cc index a47576cf0c0..aeacaef0b6d 100644 --- a/sql/event_scheduler.cc +++ b/sql/event_scheduler.cc @@ -104,25 +104,22 @@ evex_print_warnings(THD *thd, Event_job_data *et) SYNOPSIS post_init_event_thread() thd Thread + + NOTES + Before this is called, one should not do any DBUG_XXX() calls. + */ bool post_init_event_thread(THD *thd) { - my_thread_init(); - pthread_detach_this_thread(); - thd->real_id= pthread_self(); + (void) init_new_connection_handler_thread(); if (init_thr_lock() || thd->store_globals()) { thd->cleanup(); return TRUE; } -#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__) - sigset_t set; - VOID(sigemptyset(&set)); // Get mask in use - VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals)); -#endif pthread_mutex_lock(&LOCK_thread_count); threads.append(thd); thread_count++; @@ -187,7 +184,7 @@ pre_init_event_thread(THD* thd) thd->options|= OPTION_AUTO_IS_NULL; thd->client_capabilities|= CLIENT_MULTI_RESULTS; pthread_mutex_lock(&LOCK_thread_count); - thd->thread_id= thread_id++; + thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; pthread_mutex_unlock(&LOCK_thread_count); /* @@ -218,20 +215,20 @@ pthread_handler_t event_scheduler_thread(void *arg) { /* needs to be first for thread_stack */ - THD *thd= (THD *)((struct scheduler_param *) arg)->thd; + THD *thd= (THD *) ((struct scheduler_param *) arg)->thd; Event_scheduler *scheduler= ((struct scheduler_param *) arg)->scheduler; + bool res; - my_free((char*)arg, MYF(0)); - - thd->thread_stack= (char *)&thd; // remember where our stack is + thd->thread_stack= (char*) &thd; // remember where our stack is + res= post_init_event_thread(thd); DBUG_ENTER("event_scheduler_thread"); - - if (!post_init_event_thread(thd)) + my_free((char*)arg, MYF(0)); + if (!res) scheduler->run(thd); deinit_event_thread(thd); - + pthread_exit(0); DBUG_RETURN(0); // Against gcc warnings } @@ -255,13 +252,14 @@ event_worker_thread(void *arg) THD *thd; Event_job_data *event= (Event_job_data *)arg; int ret; + bool res; thd= event->thd; - thd->thread_stack= (char *) &thd; // remember where our stack is + res= post_init_event_thread(thd); DBUG_ENTER("event_worker_thread"); - if (!post_init_event_thread(thd)) + if (!res) { DBUG_PRINT("info", ("Baikonur, time is %ld, BURAN reporting and operational." "THD: 0x%lx", @@ -295,6 +293,7 @@ event_worker_thread(void *arg) deinit_event_thread(thd); + pthread_exit(0); DBUG_RETURN(0); // Can't return anything here } diff --git a/sql/field.h b/sql/field.h index cd897cc32b3..f27ed8b9394 100644 --- a/sql/field.h +++ b/sql/field.h @@ -825,8 +825,8 @@ public: void sort_string(char *buff,uint length); uint32 pack_length() const { return sizeof(double); } void sql_type(String &str) const; - uint size_of() const { return sizeof(*this); } uint32 max_display_length() { return 53; } + uint size_of() const { return sizeof(*this); } }; diff --git a/sql/ha_ndbcluster.cc b/sql/ha_ndbcluster.cc index f9351358df8..393856e62ba 100644 --- a/sql/ha_ndbcluster.cc +++ b/sql/ha_ndbcluster.cc @@ -2820,7 +2820,7 @@ int ha_ndbcluster::key_cmp(uint keynr, const byte * old_row, int ha_ndbcluster::update_row(const byte *old_data, byte *new_data) { - THD *thd= current_thd; + THD *thd= table->in_use; NdbTransaction *trans= m_active_trans; NdbScanOperation* cursor= m_active_cursor; NdbOperation *op; @@ -3007,7 +3007,7 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data) int ha_ndbcluster::delete_row(const byte *record) { - THD *thd= current_thd; + THD *thd= table->in_use; NdbTransaction *trans= m_active_trans; NdbScanOperation* cursor= m_active_cursor; NdbOperation *op; @@ -6016,7 +6016,7 @@ void ha_ndbcluster::set_part_info(partition_info *part_info) int ha_ndbcluster::close(void) { DBUG_ENTER("close"); - THD *thd= current_thd; + THD *thd= table->in_use; Ndb *ndb= thd ? check_ndb_in_thd(thd) : g_ndb; /* ndb_share reference handler free */ DBUG_PRINT("NDB_SHARE", ("%s handler free use_count: %u", diff --git a/sql/handler.cc b/sql/handler.cc index 8e7206aade9..2244aaa5311 100644 --- a/sql/handler.cc +++ b/sql/handler.cc @@ -845,7 +845,7 @@ int ha_rollback_trans(THD *thd, bool all) message in the error log, so we don't send it. */ if (is_real_trans && (thd->options & OPTION_STATUS_NO_TRANS_UPDATE) && - !thd->slave_thread) + !thd->slave_thread && thd->killed != THD::KILL_CONNECTION) push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARNING_NOT_COMPLETE_ROLLBACK, ER(ER_WARNING_NOT_COMPLETE_ROLLBACK)); @@ -2855,8 +2855,8 @@ ha_find_files(THD *thd,const char *db,const char *path, { int error= 0; DBUG_ENTER("ha_find_files"); - DBUG_PRINT("enter", ("db: %s, path: %s, wild: %s, dir: %d", - db, path, wild, dir)); + DBUG_PRINT("enter", ("db: '%s' path: '%s' wild: '%s' dir: %d", + db, path, wild ? wild : "NULL", dir)); st_find_files_args args= {db, path, wild, dir, files}; plugin_foreach(thd, find_files_handlerton, diff --git a/sql/item.cc b/sql/item.cc index 48ca03ada0a..d0691979c66 100644 --- a/sql/item.cc +++ b/sql/item.cc @@ -1553,6 +1553,8 @@ bool agg_item_charsets(DTCollation &coll, const char *fname, doesn't display each argument's characteristics. - if nargs is 1, then this error cannot happen. */ + LINT_INIT(safe_args[0]); + LINT_INIT(safe_args[1]); if (nargs >=2 && nargs <= 3) { safe_args[0]= args[0]; diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc index 86a47c35e0a..17da1174e37 100644 --- a/sql/item_cmpfunc.cc +++ b/sql/item_cmpfunc.cc @@ -903,6 +903,7 @@ bool Item_in_optimizer::fix_fields(THD *thd, Item **ref) longlong Item_in_optimizer::val_int() { + bool tmp; DBUG_ASSERT(fixed == 1); cache->store(args[0]); @@ -966,7 +967,7 @@ longlong Item_in_optimizer::val_int() } return 0; } - bool tmp= args[1]->val_bool_result(); + tmp= args[1]->val_bool_result(); null_value= args[1]->null_value; return tmp; } diff --git a/sql/item_func.cc b/sql/item_func.cc index cd0229e0548..aa344a343de 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -3087,14 +3087,8 @@ public: int count; bool locked; pthread_cond_t cond; -#ifndef EMBEDDED_LIBRARY - pthread_t thread; - void set_thread(THD *thd) { thread= thd->real_id; } -#else - THD *thread; - void set_thread(THD *thd) { thread= thd; } -#endif /*EMBEDDED_LIBRARY*/ - ulong thread_id; + my_thread_id thread_id; + void set_thread(THD *thd) { thread_id= thd->thread_id; } User_level_lock(const char *key_arg,uint length, ulong id) :key_length(length),count(1),locked(1), thread_id(id) @@ -3411,11 +3405,7 @@ longlong Item_func_release_lock::val_int() } else { -#ifdef EMBEDDED_LIBRARY - if (ull->locked && (current_thd == ull->thread)) -#else - if (ull->locked && pthread_equal(pthread_self(),ull->thread)) -#endif + if (ull->locked && current_thd->thread_id == ull->thread_id) { result=1; // Release is ok item_user_lock_release(ull); @@ -3460,7 +3450,7 @@ longlong Item_func_benchmark::val_int() THD *thd=current_thd; ulong loop_count; - loop_count= args[0]->val_int(); + loop_count= (ulong) args[0]->val_int(); if (args[0]->null_value) { diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc index faea5380a66..0cc0cc3c84d 100644 --- a/sql/item_strfunc.cc +++ b/sql/item_strfunc.cc @@ -1926,7 +1926,7 @@ String *Item_func_format::val_str(String *str) int diff; DBUG_ASSERT(fixed == 1); - dec= args[1]->val_int(); + dec= (int) args[1]->val_int(); if (args[1]->null_value) { null_value=1; diff --git a/sql/item_timefunc.cc b/sql/item_timefunc.cc index 00f077839c3..1bf1fec5cfb 100644 --- a/sql/item_timefunc.cc +++ b/sql/item_timefunc.cc @@ -1587,7 +1587,7 @@ int Item_func_now::save_in_field(Field *to, bool no_conversions) void Item_func_sysdate_local::store_now_in_TIME(TIME *now_time) { THD *thd= current_thd; - thd->variables.time_zone->gmt_sec_to_TIME(now_time, time(NULL)); + thd->variables.time_zone->gmt_sec_to_TIME(now_time, (my_time_t) time(NULL)); thd->time_zone_used= 1; } diff --git a/sql/lock.cc b/sql/lock.cc index 533307c6b85..edef3b3b67f 100644 --- a/sql/lock.cc +++ b/sql/lock.cc @@ -485,7 +485,7 @@ bool mysql_lock_abort_for_thread(THD *thd, TABLE *table) for (uint i=0; i < locked->lock_count; i++) { if (thr_abort_locks_for_thread(locked->locks[i]->lock, - table->in_use->real_id)) + table->in_use->thread_id)) result= TRUE; } my_free((gptr) locked,MYF(0)); diff --git a/sql/log.cc b/sql/log.cc index 5e9ebfcb902..59fa08a4217 100644 --- a/sql/log.cc +++ b/sql/log.cc @@ -267,7 +267,7 @@ bool Log_to_csv_event_handler::open_log_table(uint log_table_type) table->table_name_length= 8; break; default: - DBUG_ASSERT(0); + assert(0); // Impossible } /* @@ -1161,7 +1161,7 @@ void LOGGER::deactivate_log_handler(THD *thd, uint log_type) log_thd= table_log_handler->general_log_thd; break; default: - DBUG_ASSERT(0); + assert(0); // Impossible } if (!(*tmp_opt)) @@ -1310,7 +1310,7 @@ void Log_to_csv_event_handler:: table= &slow_log; break; default: - DBUG_ASSERT(0); + assert(0); // Impossible } /* @@ -3887,7 +3887,7 @@ void MYSQL_BIN_LOG::rotate_and_purge(uint flags) #ifdef HAVE_REPLICATION if (expire_logs_days) { - long purge_time= time(0) - expire_logs_days*24*60*60; + long purge_time= (long) (time(0) - expire_logs_days*24*60*60); if (purge_time >= 0) purge_logs_before_date(purge_time); } diff --git a/sql/log_event.cc b/sql/log_event.cc index 54d75449cd5..951cf72d653 100644 --- a/sql/log_event.cc +++ b/sql/log_event.cc @@ -1148,7 +1148,6 @@ void Log_event::print_base64(IO_CACHE* file, { const uchar *ptr= (const uchar *)temp_buf; uint32 size= uint4korr(ptr + EVENT_LEN_OFFSET); - DBUG_ENTER("Log_event::print_base64"); size_t const tmp_str_sz= base64_needed_encoded_length((int) size); @@ -1159,8 +1158,10 @@ void Log_event::print_base64(IO_CACHE* file, DBUG_VOID_RETURN; } - int const res= base64_encode(ptr, (size_t) size, tmp_str); - DBUG_ASSERT(res == 0); + if (base64_encode(ptr, (size_t) size, tmp_str)) + { + DBUG_ASSERT(0); + } if (my_b_tell(file) == 0) my_b_printf(file, "\nBINLOG '\n"); @@ -5471,7 +5472,7 @@ int Rows_log_event::do_add_row_data(byte *const row_data, my_ptrdiff_t const new_alloc= block_size * ((cur_size + length) / block_size + block_size - 1); - byte* const new_buf= (byte*)my_realloc((gptr)m_rows_buf, new_alloc, + byte* const new_buf= (byte*)my_realloc((gptr)m_rows_buf, (uint) new_alloc, MYF(MY_ALLOW_ZERO_PTR|MY_WME)); if (unlikely(!new_buf)) DBUG_RETURN(HA_ERR_OUT_OF_MEM); @@ -6014,7 +6015,7 @@ bool Rows_log_event::write_data_body(IO_CACHE*file) sbuf_end - sbuf) || my_b_safe_write(file, reinterpret_cast<byte*>(m_cols.bitmap), no_bytes_in_map(&m_cols)) || - my_b_safe_write(file, m_rows_buf, data_size)); + my_b_safe_write(file, m_rows_buf, (uint) data_size)); } #endif @@ -6367,8 +6368,8 @@ bool Table_map_log_event::write_data_body(IO_CACHE *file) DBUG_ASSERT(m_dblen < 128); DBUG_ASSERT(m_tbllen < 128); - byte const dbuf[]= { m_dblen }; - byte const tbuf[]= { m_tbllen }; + byte const dbuf[]= { (byte) m_dblen }; + byte const tbuf[]= { (byte) m_tbllen }; char cbuf[sizeof(m_colcnt)]; char *const cbuf_end= net_store_length((char*) cbuf, (uint) m_colcnt); diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h index 68465c08746..bf6bd374ef8 100644 --- a/sql/mysql_priv.h +++ b/sql/mysql_priv.h @@ -38,6 +38,7 @@ #include <queues.h> #include "sql_bitmap.h" #include "sql_array.h" +#include "scheduler.h" /* TODO convert all these three maps to Bitmap classes */ typedef ulonglong table_map; /* Used for table bits in join */ @@ -282,7 +283,6 @@ MY_LOCALE *my_locale_by_number(uint number); #define TEST_MIT_THREAD 4 #define TEST_BLOCKING 8 #define TEST_KEEP_TMP_TABLES 16 -#define TEST_NO_THREADS 32 /* For debugging under Linux */ #define TEST_READCHECK 64 /* Force use of readcheck */ #define TEST_NO_EXTRA 128 #define TEST_CORE_ON_SIGNAL 256 /* Give core if signal */ @@ -787,6 +787,23 @@ uint build_table_path(char *buff, size_t bufflen, const char *db, void write_bin_log(THD *thd, bool clear_error, char const *query, ulong query_length); +/* sql_connect.cc */ +int check_user(THD *thd, enum enum_server_command command, + const char *passwd, uint passwd_len, const char *db, + bool check_count); +pthread_handler_t handle_one_connection(void *arg); +bool init_new_connection_handler_thread(); +void reset_mqh(LEX_USER *lu, bool get_them); +bool check_mqh(THD *thd, uint check_command); +void time_out_user_resource_limits(THD *thd, USER_CONN *uc); +int check_for_max_user_connections(THD *thd, USER_CONN *uc); +void decrease_user_connections(USER_CONN *uc); +void thd_init_client_charset(THD *thd, uint cs_number); +bool setup_connection_thread_globals(THD *thd); +bool login_connection(THD *thd); +void prepare_new_connection_state(THD* thd); +void end_connection(THD *thd); + bool mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create, bool silent); bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create); bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent); @@ -822,10 +839,7 @@ bool multi_delete_set_locks_and_link_aux_tables(LEX *lex); void init_max_user_conn(void); void init_update_queries(void); void free_max_user_conn(void); -pthread_handler_t handle_one_connection(void *arg); pthread_handler_t handle_bootstrap(void *arg); -void end_thread(THD *thd,bool put_in_cache); -void flush_thread_cache(); bool mysql_execute_command(THD *thd); bool do_command(THD *thd); bool dispatch_command(enum enum_server_command command, THD *thd, @@ -1495,6 +1509,11 @@ File open_binlog(IO_CACHE *log, const char *log_file_name, extern void MYSQLerror(const char*); void refresh_status(THD *thd); my_bool mysql_rm_tmp_tables(void); +void handle_connection_in_main_thread(THD *thd); +void create_thread_to_handle_connection(THD *thd); +void unlink_thd(THD *thd); +bool one_thread_per_connection_end(THD *thd, bool put_in_cache); +void flush_thread_cache(); /* item_func.cc */ extern bool check_reserved_words(LEX_STRING *name); @@ -1578,7 +1597,7 @@ extern ulong max_prepared_stmt_count, prepared_stmt_count; extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit; extern ulong max_binlog_size, max_relay_log_size; extern ulong opt_binlog_rows_event_max_size; -extern ulong rpl_recovery_rank, thread_cache_size; +extern ulong rpl_recovery_rank, thread_cache_size, thread_pool_size; extern ulong back_log; extern ulong specialflag, current_pid; extern ulong expire_logs_days, sync_binlog_period, sync_binlog_counter; @@ -1663,6 +1682,9 @@ extern TABLE *unused_tables; extern const char* any_db; extern struct my_option my_long_options[]; extern const LEX_STRING view_type; +extern scheduler_functions thread_scheduler; +extern TYPELIB thread_handling_typelib; +extern uint8 uc_update_queries[SQLCOM_END+1]; extern uint sql_command_flags[]; extern TYPELIB log_output_typelib; diff --git a/sql/mysqld.cc b/sql/mysqld.cc index 172891b7c8e..a6525c1c78c 100644 --- a/sql/mysqld.cc +++ b/sql/mysqld.cc @@ -59,10 +59,6 @@ #define mysqld_charset &my_charset_latin1 -#ifndef DBUG_OFF -#define ONE_THREAD -#endif - #ifdef HAVE_purify #define IF_PURIFY(A,B) (A) #else @@ -282,6 +278,16 @@ static TYPELIB tc_heuristic_recover_typelib= array_elements(tc_heuristic_recover_names)-1,"", tc_heuristic_recover_names, NULL }; + +static const char *thread_handling_names[]= +{ "one-thread-per-connection", "no-threads", "pool-of-threads", NullS}; + +TYPELIB thread_handling_typelib= +{ + array_elements(thread_handling_names) - 1, "", + thread_handling_names, NULL +}; + const char *first_keyword= "first", *binary_keyword= "BINARY"; const char *my_localhost= "localhost", *delayed_user= "DELAYED"; #if SIZEOF_OFF_T > 4 && defined(BIG_TABLES) @@ -467,7 +473,8 @@ ulong thread_stack, what_to_log; ulong query_buff_size, slow_launch_time, slave_open_temp_tables; ulong open_files_limit, max_binlog_size, max_relay_log_size; ulong slave_net_timeout, slave_trans_retries; -ulong thread_cache_size=0, binlog_cache_size=0, max_binlog_cache_size=0; +ulong thread_cache_size=0, thread_pool_size= 0; +ulong binlog_cache_size=0, max_binlog_cache_size=0; ulong query_cache_size=0; ulong refresh_version, flush_version; /* Increments on each reload */ query_id_t global_query_id; @@ -681,6 +688,8 @@ my_bool opt_enable_shared_memory; HANDLE smem_event_connect_request= 0; #endif +scheduler_functions thread_scheduler; + #define SSL_VARS_NOT_STATIC #include "sslopt-vars.h" #ifdef HAVE_OPENSSL @@ -861,6 +870,7 @@ static void close_connections(void) continue; tmp->killed= THD::KILL_CONNECTION; + thread_scheduler.post_kill_notification(tmp); if (tmp->mysys_var) { tmp->mysys_var->abort=1; @@ -1254,6 +1264,7 @@ void clean_up(bool print_message) if (!opt_bootstrap) (void) my_delete(pidfile_name,MYF(0)); // This may not always exist #endif + thread_scheduler.end(); finish_client_errs(); my_free((gptr) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST), MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); @@ -1513,6 +1524,9 @@ static void network_init(void) DBUG_ENTER("network_init"); LINT_INIT(ret); + if (thread_scheduler.init()) + unireg_abort(1); /* purecov: inspected */ + set_ports(); if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap) @@ -1731,21 +1745,55 @@ extern "C" sig_handler end_thread_signal(int sig __attribute__((unused))) if (thd && ! thd->bootstrap) { statistic_increment(killed_threads, &LOCK_status); - end_thread(thd,0); + thread_scheduler.end_thread(thd,0); /* purecov: inspected */ } DBUG_VOID_RETURN; /* purecov: deadcode */ } -void end_thread(THD *thd, bool put_in_cache) +/* + Unlink thd from global list of available connections and free thd + + SYNOPSIS + unlink_thd() + thd Thread handler + + NOTES + LOCK_thread_count is locked and left locked +*/ + +void unlink_thd(THD *thd) { - DBUG_ENTER("end_thread"); + DBUG_ENTER("unlink_thd"); + DBUG_PRINT("enter", ("thd: 0x%lx", (long) thd)); thd->cleanup(); (void) pthread_mutex_lock(&LOCK_thread_count); thread_count--; delete thd; + DBUG_VOID_RETURN; +} + - if (put_in_cache && cached_thread_count < thread_cache_size && +/* + Store thread in cache for reuse by new connections + + SYNOPSIS + cache_thread() + + NOTES + LOCK_thread_count has to be locked + + RETURN + 0 Thread was not put in cache + 1 Thread is to be reused by new connection. + (ie, caller should return, not abort with pthread_exit()) +*/ + + +static bool cache_thread() +{ + safe_mutex_assert_owner(&LOCK_thread_count); + if (cached_thread_count < thread_cache_size && ! abort_loop && !kill_cached_threads) { /* Don't kill the thread, just put it in cache for reuse */ @@ -1758,31 +1806,56 @@ void end_thread(THD *thd, bool put_in_cache) pthread_cond_signal(&COND_flush_thread_cache); if (wake_thread) { + THD *thd; wake_thread--; - thd=thread_cache.get(); - thd->real_id=pthread_self(); + thd= thread_cache.get(); thd->thread_stack= (char*) &thd; // For store_globals (void) thd->store_globals(); thd->thr_create_time= time(NULL); threads.append(thd); - pthread_mutex_unlock(&LOCK_thread_count); - DBUG_VOID_RETURN; + return(1); } } + return(0); +} + + +/* + End thread for the current connection + + SYNOPSIS + one_thread_per_connection_end() + thd Thread handler + put_in_cache Store thread in cache, if there is room in it + Normally this is true in all cases except when we got + out of resources initializing the current thread + + NOTES + If thread is cached, we will wait until thread is scheduled to be + reused and then we will return. + If thread is not cached, we end the thread. + + RETURN + 0 Signal to handle_one_connection to reuse connection +*/ + +bool one_thread_per_connection_end(THD *thd, bool put_in_cache) +{ + DBUG_ENTER("one_thread_per_connection_end"); + unlink_thd(thd); + if (put_in_cache) + put_in_cache= cache_thread(); + pthread_mutex_unlock(&LOCK_thread_count); + if (put_in_cache) + DBUG_RETURN(0); // Thread is reused - /* Tell main we are ready */ - (void) pthread_mutex_unlock(&LOCK_thread_count); /* It's safe to broadcast outside a lock (COND... is not deleted here) */ DBUG_PRINT("signal", ("Broadcasting COND_thread_count")); (void) pthread_cond_broadcast(&COND_thread_count); -#ifdef ONE_THREAD - if (!(test_flags & TEST_NO_THREADS)) // For debugging under Linux -#endif - { - my_thread_end(); - pthread_exit(0); - } - DBUG_VOID_RETURN; + + my_thread_end(); + pthread_exit(0); + DBUG_RETURN(0); // Impossible } @@ -2123,14 +2196,15 @@ and this may fail.\n\n"); (ulong) dflt_key_cache->key_cache_mem_size); fprintf(stderr, "read_buffer_size=%ld\n", (long) global_system_variables.read_buff_size); fprintf(stderr, "max_used_connections=%lu\n", max_used_connections); - fprintf(stderr, "max_connections=%lu\n", max_connections); + fprintf(stderr, "max_threads=%u\n", thread_scheduler.max_threads); fprintf(stderr, "threads_connected=%u\n", thread_count); fprintf(stderr, "It is possible that mysqld could use up to \n\ -key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = %lu K\n\ +key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = %lu K\n\ bytes of memory\n", ((ulong) dflt_key_cache->key_cache_mem_size + (global_system_variables.read_buff_size + global_system_variables.sortbuff_size) * - max_connections)/ 1024); + thread_scheduler.max_threads + + max_connections * sizeof(THD)) / 1024); fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n"); #if defined(HAVE_LINUXTHREADS) @@ -2331,7 +2405,7 @@ pthread_handler_t signal_hand(void *arg __attribute__((unused))) This should actually be '+ max_number_of_slaves' instead of +10, but the +10 should be quite safe. */ - init_thr_alarm(max_connections + + init_thr_alarm(thread_scheduler.max_threads + global_system_variables.max_insert_delayed_threads + 10); #if SIGINT != THR_KILL_SIGNAL if (test_flags & TEST_SIGINT) @@ -2535,18 +2609,6 @@ static void my_str_free_mysqld(void *ptr) #ifdef __WIN__ -struct utsname -{ - char nodename[FN_REFLEN]; -}; - - -int uname(struct utsname *a) -{ - return -1; -} - - pthread_handler_t handle_shutdown(void *arg) { MSG msg; @@ -3357,7 +3419,7 @@ server."); #ifdef HAVE_REPLICATION if (opt_bin_log && expire_logs_days) { - long purge_time= time(0) - expire_logs_days*24*60*60; + long purge_time= (long) (time(0) - expire_logs_days*24*60*60); if (purge_time >= 0) mysql_bin_log.purge_logs_before_date(purge_time); } @@ -4009,7 +4071,7 @@ static void bootstrap(FILE *file) my_net_init(&thd->net,(st_vio*) 0); thd->max_client_packet_length= thd->net.max_packet; thd->security_ctx->master_access= ~(ulong)0; - thd->thread_id=thread_id++; + thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; thread_count++; bootstrap_file=file; @@ -4052,6 +4114,74 @@ static bool read_init_file(char *file_name) #ifndef EMBEDDED_LIBRARY + +/* + Simple scheduler that use the main thread to handle the request + + NOTES + This is only used for debugging, when starting mysqld with + --thread-handling=no-threads or --one-thread + + When we enter this function, LOCK_thread_count is hold! +*/ + +void handle_connection_in_main_thread(THD *thd) +{ + safe_mutex_assert_owner(&LOCK_thread_count); + thread_cache_size=0; // Safety + threads.append(thd); + (void) pthread_mutex_unlock(&LOCK_thread_count); + handle_one_connection((void*) thd); +} + + +/* + Scheduler that uses one thread per connection +*/ + +void create_thread_to_handle_connection(THD *thd) +{ + if (cached_thread_count > wake_thread) + { + /* Get thread from cache */ + thread_cache.append(thd); + wake_thread++; + pthread_cond_signal(&COND_thread_cache); + } + else + { + /* Create new thread to handle connection */ + int error; + thread_created++; + threads.append(thd); + DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id)); + thd->connect_time = time(NULL); + if ((error=pthread_create(&thd->real_id,&connection_attrib, + handle_one_connection, + (void*) thd))) + { + /* purify: begin inspected */ + DBUG_PRINT("error", + ("Can't create thread to handle request (error %d)", + error)); + thread_count--; + thd->killed= THD::KILL_CONNECTION; // Safety + (void) pthread_mutex_unlock(&LOCK_thread_count); + statistic_increment(aborted_connects,&LOCK_status); + net_printf_error(thd, ER_CANT_CREATE_THREAD, error); + (void) pthread_mutex_lock(&LOCK_thread_count); + close_connection(thd,0,0); + delete thd; + (void) pthread_mutex_unlock(&LOCK_thread_count); + return; + /* purecov: end */ + } + } + (void) pthread_mutex_unlock(&LOCK_thread_count); + DBUG_PRINT("info",("Thread created")); +} + + /* Create new thread to handle incoming connection. @@ -4088,64 +4218,15 @@ static void create_new_thread(THD *thd) DBUG_VOID_RETURN; } pthread_mutex_lock(&LOCK_thread_count); - thd->thread_id=thread_id++; - - thd->real_id=pthread_self(); // Keep purify happy + thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; /* Start a new thread to handle connection */ thread_count++; -#ifdef ONE_THREAD - if (test_flags & TEST_NO_THREADS) // For debugging under Linux - { - thread_cache_size=0; // Safety - threads.append(thd); - thd->real_id=pthread_self(); - (void) pthread_mutex_unlock(&LOCK_thread_count); - handle_one_connection((void*) thd); - } - else -#endif - { - if (thread_count-delayed_insert_threads > max_used_connections) - max_used_connections=thread_count-delayed_insert_threads; + if (thread_count - delayed_insert_threads > max_used_connections) + max_used_connections= thread_count - delayed_insert_threads; - if (cached_thread_count > wake_thread) - { - thread_cache.append(thd); - wake_thread++; - pthread_cond_signal(&COND_thread_cache); - } - else - { - int error; - thread_created++; - threads.append(thd); - DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id)); - thd->connect_time = time(NULL); - if ((error=pthread_create(&thd->real_id,&connection_attrib, - handle_one_connection, - (void*) thd))) - { - DBUG_PRINT("error", - ("Can't create thread to handle request (error %d)", - error)); - thread_count--; - thd->killed= THD::KILL_CONNECTION; // Safety - (void) pthread_mutex_unlock(&LOCK_thread_count); - statistic_increment(aborted_connects,&LOCK_status); - net_printf_error(thd, ER_CANT_CREATE_THREAD, error); - (void) pthread_mutex_lock(&LOCK_thread_count); - close_connection(thd,0,0); - delete thd; - (void) pthread_mutex_unlock(&LOCK_thread_count); - DBUG_VOID_RETURN; - } - } - (void) pthread_mutex_unlock(&LOCK_thread_count); - - } - DBUG_PRINT("info",("Thread created")); + thread_scheduler.add_connection(thd); DBUG_VOID_RETURN; } #endif /* EMBEDDED_LIBRARY */ @@ -4895,6 +4976,7 @@ enum options_mysqld OPT_GENERAL_LOG, OPT_SLOW_LOG, OPT_MERGE, + OPT_THREAD_HANDLING, OPT_INNODB_ROLLBACK_ON_TIMEOUT }; @@ -5502,11 +5584,9 @@ Disable with --skip-ndbcluster (will save memory).", (gptr*) &global_system_variables.old_passwords, (gptr*) &max_system_variables.old_passwords, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, -#ifdef ONE_THREAD {"one-thread", OPT_ONE_THREAD, - "Only use one thread (for debugging under Linux).", 0, 0, 0, GET_NO_ARG, - NO_ARG, 0, 0, 0, 0, 0, 0}, -#endif + "(deprecated): Only use one thread (for debugging under Linux). Use thread-handling=no-threads instead", + 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"old-style-user-limits", OPT_OLD_STYLE_USER_LIMITS, "Enable old-style user limits (before 5.0.3 user resources were counted per each user+host vs. per account)", (gptr*) &opt_old_style_user_limits, (gptr*) &opt_old_style_user_limits, @@ -5985,7 +6065,7 @@ The minimum value for this variable is 4096.", // children, to avoid "too many connections" error in a common setup {"max_connections", OPT_MAX_CONNECTIONS, "The number of simultaneous clients allowed.", (gptr*) &max_connections, - (gptr*) &max_connections, 0, GET_ULONG, REQUIRED_ARG, 151, 1, 16384, 0, 1, + (gptr*) &max_connections, 0, GET_ULONG, REQUIRED_ARG, 151, 1, 100000, 0, 1, 0}, {"max_delayed_threads", OPT_MAX_DELAYED_THREADS, "Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero, which means INSERT DELAYED is not used.", @@ -6276,6 +6356,12 @@ The minimum value for this variable is 4096.", "Permits the application to give the threads system a hint for the desired number of threads that should be run at the same time.", (gptr*) &concurrency, (gptr*) &concurrency, 0, GET_ULONG, REQUIRED_ARG, DEFAULT_CONCURRENCY, 1, 512, 0, 1, 0}, +#if HAVE_POOL_OF_THREADS == 1 + {"thread_pool_size", OPT_THREAD_CACHE_SIZE, + "How many threads we should create to handle query requests in case of 'thread_handling=pool-of-threads'", + (gptr*) &thread_pool_size, (gptr*) &thread_pool_size, 0, GET_ULONG, + REQUIRED_ARG, 20, 1, 16384, 0, 1, 0}, +#endif {"thread_stack", OPT_THREAD_STACK, "The stack size for each thread.", (gptr*) &thread_stack, (gptr*) &thread_stack, 0, GET_ULONG, REQUIRED_ARG,DEFAULT_THREAD_STACK, @@ -6300,6 +6386,10 @@ The minimum value for this variable is 4096.", (gptr*) &global_system_variables.trans_prealloc_size, (gptr*) &max_system_variables.trans_prealloc_size, 0, GET_ULONG, REQUIRED_ARG, TRANS_ALLOC_PREALLOC_SIZE, 1024, ~0L, 0, 1024, 0}, + {"thread_handling", OPT_THREAD_HANDLING, + "Define threads usage for handling queries: " + "one-thread-per-connection or no-threads", 0, 0, + 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"updatable_views_with_limit", OPT_UPDATABLE_VIEWS_WITH_LIMIT, "1 = YES = Don't issue an error message (warning only) if a VIEW without presence of a key of the underlying table is used in queries with a LIMIT clause for updating. 0 = NO = Prohibit update of a VIEW, which does not contain a key of the underlying table and the query uses a LIMIT clause (usually get from GUI tools).", (gptr*) &global_system_variables.updatable_views_with_limit, @@ -7241,7 +7331,6 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)), break; case 'T': test_flags= argument ? (uint) atoi(argument) : 0; - test_flags&= ~TEST_NO_THREADS; opt_endinfo=1; break; case (int) OPT_BIG_TABLES: @@ -7473,11 +7562,6 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)), opt_skip_show_db=1; opt_specialflag|=SPECIAL_SKIP_SHOW_DB; break; -#ifdef ONE_THREAD - case (int) OPT_ONE_THREAD: - test_flags |= TEST_NO_THREADS; -#endif - break; case (int) OPT_WANT_CORE: test_flags |= TEST_CORE_ON_SIGNAL; break; @@ -7723,6 +7807,23 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)), sql_mode); break; } + case OPT_ONE_THREAD: + global_system_variables.thread_handling= 2; + break; + case OPT_THREAD_HANDLING: + { + if ((global_system_variables.thread_handling= + find_type(argument, &thread_handling_typelib, 2)) <= 0 || + (global_system_variables.thread_handling == SCHEDULER_POOL_OF_THREADS + && !HAVE_POOL_OF_THREADS)) + { + /* purecov: begin tested */ + fprintf(stderr,"Unknown/unsupported thread-handling: %s\n",argument); + exit(1); + /* purecov: end */ + } + break; + } case OPT_FT_BOOLEAN_SYNTAX: if (ft_boolean_check_syntax_string((byte*) argument)) { @@ -7843,6 +7944,7 @@ static void get_options(int argc,char **argv) if (mysqld_chroot) set_root(mysqld_chroot); #else + global_system_variables.thread_handling = SCHEDULER_NO_THREADS; max_allowed_packet= global_system_variables.max_allowed_packet; net_buffer_length= global_system_variables.net_buffer_length; #endif @@ -7873,6 +7975,17 @@ static void get_options(int argc,char **argv) &global_system_variables.datetime_format)) exit(1); +#ifdef EMBEDDED_LIBRARY + one_thread_scheduler(&thread_scheduler); +#else + if (global_system_variables.thread_handling <= + SCHEDULER_ONE_THREAD_PER_CONNECTION) + one_thread_per_connection_scheduler(&thread_scheduler); + else if (global_system_variables.thread_handling == SCHEDULER_NO_THREADS) + one_thread_scheduler(&thread_scheduler); + else + pool_of_threads_scheduler(&thread_scheduler); /* purecov: tested */ +#endif } @@ -8213,5 +8326,3 @@ template class I_List<NAMED_LIST>; template class I_List<Statement>; template class I_List_iterator<Statement>; #endif - - diff --git a/sql/mysqld.cc.rej b/sql/mysqld.cc.rej deleted file mode 100644 index 62f0357622d..00000000000 --- a/sql/mysqld.cc.rej +++ /dev/null @@ -1,17 +0,0 @@ -*************** -*** 5316,5322 **** - (gptr*) &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, - {"merge", OPT_MERGE, "Enable Merge storage engine. Disable with \ - --skip-merge.", -! (gptr*) &opt_merge, (gptr*) &opt_merge, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0}, - {"myisam-recover", OPT_MYISAM_RECOVER, - "Syntax: myisam-recover[=option[,option...]], where option can be DEFAULT, BACKUP, FORCE or QUICK.", - (gptr*) &myisam_recover_options_str, (gptr*) &myisam_recover_options_str, 0, ---- 5336,5342 ---- - (gptr*) &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, - {"merge", OPT_MERGE, "Enable Merge storage engine. Disable with \ - --skip-merge.", -! (gptr*) &opt_merge, (gptr*) &opt_merge, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, - {"myisam-recover", OPT_MYISAM_RECOVER, - "Syntax: myisam-recover[=option[,option...]], where option can be DEFAULT, BACKUP, FORCE or QUICK.", - (gptr*) &myisam_recover_options_str, (gptr*) &myisam_recover_options_str, 0, diff --git a/sql/parse_file.cc b/sql/parse_file.cc index c36e16e0553..f5b62e3afe2 100644 --- a/sql/parse_file.cc +++ b/sql/parse_file.cc @@ -228,7 +228,7 @@ sql_create_definition_file(const LEX_STRING *dir, const LEX_STRING *file_name, if (dir) { - fn_format(path, file_name->str, dir->str, 0, MY_UNPACK_FILENAME); + fn_format(path, file_name->str, dir->str, "", MY_UNPACK_FILENAME); path_end= strlen(path); } else diff --git a/sql/repl_failsafe.cc b/sql/repl_failsafe.cc index 16b00cab516..934a6821514 100644 --- a/sql/repl_failsafe.cc +++ b/sql/repl_failsafe.cc @@ -73,23 +73,19 @@ static int init_failsafe_rpl_thread(THD* thd) thd->net.read_timeout = slave_net_timeout; thd->max_client_packet_length=thd->net.max_packet; pthread_mutex_lock(&LOCK_thread_count); - thd->thread_id = thread_id++; + thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; pthread_mutex_unlock(&LOCK_thread_count); if (init_thr_lock() || thd->store_globals()) { + /* purecov: begin inspected */ close_connection(thd, ER_OUT_OF_RESOURCES, 1); // is this needed? statistic_increment(aborted_connects,&LOCK_status); - end_thread(thd,0); + one_thread_per_connection_end(thd,0); DBUG_RETURN(-1); + /* purecov: end */ } -#if !defined(__WIN__) && !defined(__NETWARE__) - sigset_t set; - VOID(sigemptyset(&set)); // Get mask in use - VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals)); -#endif - thd->mem_root->free= thd->mem_root->used= 0; if (thd->variables.max_join_size == HA_POS_ERROR) thd->options|= OPTION_BIG_SELECTS; diff --git a/sql/scheduler.cc b/sql/scheduler.cc new file mode 100644 index 00000000000..b05bdf4756f --- /dev/null +++ b/sql/scheduler.cc @@ -0,0 +1,88 @@ +/* Copyright (C) 2007 MySQL AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/* + Implementation for the thread scheduler +*/ + +#ifdef USE_PRAGMA_INTERFACE +#pragma implementation +#endif + +#include <mysql_priv.h> + +/* + 'Dummy' functions to be used when we don't need any handling for a scheduler + event + */ + +static bool init_dummy(void) {return 0;} +static void post_kill_dummy(THD* thd) {} +static void end_dummy(void) {} +static bool end_thread_dummy(THD *thd, bool cache_thread) { return 0; } + +/* + Initialize default scheduler with dummy functions so that setup functions + only need to declare those that are relvant for their usage +*/ + +scheduler_functions::scheduler_functions() + :init(init_dummy), + init_new_connection_thread(init_new_connection_handler_thread), + add_connection(0), // Must be defined + post_kill_notification(post_kill_dummy), + end_thread(end_thread_dummy), end(end_dummy) +{} + + +/* + End connection, in case when we are using 'no-threads' +*/ + +static bool no_threads_end(THD *thd, bool put_in_cache) +{ + unlink_thd(thd); + pthread_mutex_unlock(&LOCK_thread_count); + return 1; // Abort handle_one_connection +} + + +/* + Initailize scheduler for --thread-handling=no-threads +*/ + +void one_thread_scheduler(scheduler_functions* func) +{ + func->max_threads= 1; +#ifndef EMBEDDED_LIBRARY + func->add_connection= handle_connection_in_main_thread; +#endif + func->init_new_connection_thread= init_dummy; + func->end_thread= no_threads_end; +} + + +/* + Initialize scheduler for --thread-handling=one-thread-per-connection +*/ + +#ifndef EMBEDDED_LIBRARY +void one_thread_per_connection_scheduler(scheduler_functions* func) +{ + func->max_threads= max_connections; + func->add_connection= create_thread_to_handle_connection; + func->end_thread= one_thread_per_connection_end; +} +#endif /* EMBEDDED_LIBRARY */ diff --git a/sql/scheduler.h b/sql/scheduler.h new file mode 100644 index 00000000000..8351cefda4c --- /dev/null +++ b/sql/scheduler.h @@ -0,0 +1,60 @@ +/* Copyright (C) 2007 MySQL AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/* + Classes for the thread scheduler +*/ + +#ifdef USE_PRAGMA_INTERFACE +#pragma interface +#endif + +class THD; + +/* Functions used when manipulating threads */ + +class scheduler_functions +{ +public: + uint max_threads; + bool (*init)(void); + bool (*init_new_connection_thread)(void); + void (*add_connection)(THD *thd); + void (*post_kill_notification)(THD *thd); + bool (*end_thread)(THD *thd, bool cache_thread); + void (*end)(void); + scheduler_functions(); +}; + +enum scheduler_types +{ + SCHEDULER_ONE_THREAD_PER_CONNECTION=1, + SCHEDULER_NO_THREADS, + SCHEDULER_POOL_OF_THREADS +}; + +void one_thread_per_connection_scheduler(scheduler_functions* func); +void one_thread_scheduler(scheduler_functions* func); + +enum pool_command_op +{ + NOT_IN_USE_OP= 0, NORMAL_OP= 1, CONNECT_OP, KILL_OP, DIE_OP +}; + +#define HAVE_POOL_OF_THREADS 0 /* For easyer tests */ +#define pool_of_threads_scheduler(A) one_thread_per_connection_scheduler(A) + +class thd_scheduler +{}; diff --git a/sql/set_var.cc b/sql/set_var.cc index 55fbeac5622..ad5559165f3 100644 --- a/sql/set_var.cc +++ b/sql/set_var.cc @@ -396,6 +396,10 @@ sys_var_thd_ulong sys_trans_alloc_block_size("transaction_alloc_block_size", sys_var_thd_ulong sys_trans_prealloc_size("transaction_prealloc_size", &SV::trans_prealloc_size, 0, fix_trans_mem_root); +sys_var_thd_enum sys_thread_handling("thread_handling", + &SV::thread_handling, + &thread_handling_typelib, + NULL); #ifdef HAVE_QUERY_CACHE sys_var_long_ptr sys_query_cache_limit("query_cache_limit", @@ -464,6 +468,10 @@ sys_var_long_ptr sys_table_lock_wait_timeout("table_lock_wait_timeout", &table_lock_wait_timeout); sys_var_long_ptr sys_thread_cache_size("thread_cache_size", &thread_cache_size); +#if HAVE_POOL_OF_THREADS == 1 +sys_var_long_ptr sys_thread_pool_size("thread_pool_size", + &thread_pool_size); +#endif sys_var_thd_enum sys_tx_isolation("tx_isolation", &SV::tx_isolation, &tx_isolation_typelib, @@ -1007,6 +1015,10 @@ SHOW_VAR init_vars[]= { #ifdef HAVE_THR_SETCONCURRENCY {"thread_concurrency", (char*) &concurrency, SHOW_LONG}, #endif + {sys_thread_handling.name, (char*) &sys_thread_handling, SHOW_SYS}, +#if HAVE_POOL_OF_THREADS == 1 + {sys_thread_pool_size.name, (char*) &sys_thread_pool_size, SHOW_SYS}, +#endif {"thread_stack", (char*) &thread_stack, SHOW_LONG}, {sys_time_format.name, (char*) &sys_time_format, SHOW_SYS}, {"time_zone", (char*) &sys_time_zone, SHOW_SYS}, @@ -2587,7 +2599,7 @@ bool update_sys_var_str_path(THD *thd, sys_var_str *var_str, file_log= logger.get_log_file_handler(); break; default: - DBUG_ASSERT(0); + assert(0); // Impossible } if (!old_value) @@ -3626,7 +3638,7 @@ bool sys_var_thd_table_type::update(THD *thd, set_var *var) */ byte *sys_var_thd_sql_mode::symbolic_mode_representation(THD *thd, - ulong val, + ulonglong val, ulong *len) { char buff[256]; @@ -4002,7 +4014,7 @@ sys_var_event_scheduler::update(THD *thd, set_var *var) res= Events::get_instance()->stop_execution_of_events(); else { - DBUG_ASSERT(0); + assert(0); // Impossible } if (res) my_error(ER_EVENT_SET_VAR_ERROR, MYF(0)); diff --git a/sql/set_var.h b/sql/set_var.h index 338ec5513b0..8887d91ec69 100644 --- a/sql/set_var.h +++ b/sql/set_var.h @@ -440,7 +440,7 @@ public: } void set_default(THD *thd, enum_var_type type); byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); - static byte *symbolic_mode_representation(THD *thd, ulong sql_mode, + static byte *symbolic_mode_representation(THD *thd, ulonglong sql_mode, ulong *length); }; diff --git a/sql/slave.cc b/sql/slave.cc index f2bd24bd05e..12418915ad7 100644 --- a/sql/slave.cc +++ b/sql/slave.cc @@ -1425,9 +1425,8 @@ static int init_slave_thread(THD* thd, SLAVE_THD_TYPE thd_type) thd->slave_thread = 1; set_slave_thread_options(thd); thd->client_capabilities = CLIENT_LOCAL_FILES; - thd->real_id=pthread_self(); pthread_mutex_lock(&LOCK_thread_count); - thd->thread_id = thread_id++; + thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; pthread_mutex_unlock(&LOCK_thread_count); if (init_thr_lock() || thd->store_globals()) @@ -1437,12 +1436,6 @@ static int init_slave_thread(THD* thd, SLAVE_THD_TYPE thd_type) DBUG_RETURN(-1); } -#if !defined(__WIN__) && !defined(__NETWARE__) - sigset_t set; - VOID(sigemptyset(&set)); // Get mask in use - VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals)); -#endif - if (thd_type == SLAVE_THD_SQL) thd->proc_info= "Waiting for the next event in relay log"; else diff --git a/sql/sql_acl.cc b/sql/sql_acl.cc index 0d9653172e0..3d3b51bab42 100644 --- a/sql/sql_acl.cc +++ b/sql/sql_acl.cc @@ -5169,6 +5169,8 @@ static int handle_grant_struct(uint struct_no, bool drop, user= grant_name->user; host= grant_name->host.hostname; break; + default: + assert(0); } if (! user) user= ""; diff --git a/sql/sql_base.cc b/sql/sql_base.cc index fd2e8445132..15d616bdd4f 100644 --- a/sql/sql_base.cc +++ b/sql/sql_base.cc @@ -1078,7 +1078,6 @@ void close_thread_tables(THD *thd, bool lock_in_use, bool skip_derived) if (!thd->active_transaction()) thd->transaction.xid_state.xid.null(); - /* VOID(pthread_sigmask(SIG_SETMASK,&thd->block_signals,NULL)); */ if (!lock_in_use) VOID(pthread_mutex_lock(&LOCK_open)); @@ -1208,11 +1207,12 @@ void close_temporary_tables(THD *thd) const char stub[]= "DROP /*!40005 TEMPORARY */ TABLE IF EXISTS "; uint stub_len= sizeof(stub) - 1; char buf[256]; - memcpy(buf, stub, stub_len); String s_query= String(buf, sizeof(buf), system_charset_info); - bool found_user_tables= false; + bool found_user_tables= FALSE; LINT_INIT(next); + memcpy(buf, stub, stub_len); + /* insertion sort of temp tables by pseudo_thread_id to build ordered list of sublists of equal pseudo_thread_id @@ -1263,10 +1263,13 @@ void close_temporary_tables(THD *thd) { if (is_user_table(table)) { + my_thread_id save_pseudo_thread_id= thd->variables.pseudo_thread_id; /* Set pseudo_thread_id to be that of the processed table */ thd->variables.pseudo_thread_id= tmpkeyval(thd, table); - /* Loop forward through all tables within the sublist of - common pseudo_thread_id to create single DROP query */ + /* + Loop forward through all tables within the sublist of + common pseudo_thread_id to create single DROP query. + */ for (s_query.length(stub_len); table && is_user_table(table) && tmpkeyval(thd, table) == thd->variables.pseudo_thread_id; @@ -1292,16 +1295,18 @@ void close_temporary_tables(THD *thd) 0, FALSE); thd->variables.character_set_client= cs_save; /* - Imagine the thread had created a temp table, then was doing a SELECT, and - the SELECT was killed. Then it's not clever to mark the statement above as - "killed", because it's not really a statement updating data, and there - are 99.99% chances it will succeed on slave. - If a real update (one updating a persistent table) was killed on the - master, then this real update will be logged with error_code=killed, - rightfully causing the slave to stop. + Imagine the thread had created a temp table, then was doing a + SELECT, and the SELECT was killed. Then it's not clever to + mark the statement above as "killed", because it's not really + a statement updating data, and there are 99.99% chances it + will succeed on slave. If a real update (one updating a + persistent table) was killed on the master, then this real + update will be logged with error_code=killed, rightfully + causing the slave to stop. */ qinfo.error_code= 0; mysql_bin_log.write(&qinfo); + thd->variables.pseudo_thread_id= save_pseudo_thread_id; } else { @@ -1519,9 +1524,15 @@ TABLE *find_temporary_table(THD *thd, TABLE_LIST *table_list) { if (table->s->table_cache_key.length == key_length && !memcmp(table->s->table_cache_key.str, key, key_length)) + { + DBUG_PRINT("info", + ("Found table. server_id: %u pseudo_thread_id: %lu", + (uint) thd->server_id, + (ulong) thd->variables.pseudo_thread_id)); DBUG_RETURN(table); + } } - DBUG_RETURN(0); // Not a temporary table + DBUG_RETURN(0); // Not a temporary table } @@ -1857,6 +1868,10 @@ TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT *mem_root, if (table->query_id == thd->query_id || thd->prelocked_mode && table->query_id) { + DBUG_PRINT("error", + ("query_id: %lu server_id: %u pseudo_thread_id: %lu", + (ulong) table->query_id, (uint) thd->server_id, + (ulong) thd->variables.pseudo_thread_id)); my_error(ER_CANT_REOPEN_TABLE, MYF(0), table->alias); DBUG_RETURN(0); } @@ -3507,8 +3522,11 @@ TABLE *open_temporary_table(THD *thd, const char *path, const char *db, uint key_length; TABLE_LIST table_list; DBUG_ENTER("open_temporary_table"); - DBUG_PRINT("enter", ("table: '%s'.'%s' path: '%s'", - db, table_name, path)); + DBUG_PRINT("enter", + ("table: '%s'.'%s' path: '%s' server_id: %u " + "pseudo_thread_id: %lu", + db, table_name, path, + (uint) thd->server_id, (ulong) thd->variables.pseudo_thread_id)); table_list.db= (char*) db; table_list.table_name= (char*) table_name; @@ -3795,6 +3813,7 @@ find_field_in_natural_join(THD *thd, TABLE_LIST *table_ref, const char *name, if (nj_col->view_field) { Item *item; + LINT_INIT(arena); if (register_tree_change) arena= thd->activate_stmt_arena_if_needed(&backup); /* @@ -3978,6 +3997,9 @@ find_field_in_table_ref(THD *thd, TABLE_LIST *table_list, { Field *fld; DBUG_ENTER("find_field_in_table_ref"); + DBUG_ASSERT(table_list->alias); + DBUG_ASSERT(name); + DBUG_ASSERT(item_name); DBUG_PRINT("enter", ("table: '%s' field name: '%s' item name: '%s' ref 0x%lx", table_list->alias, name, item_name, (ulong) ref)); diff --git a/sql/sql_class.cc b/sql/sql_class.cc index d5f81168be3..53500e3f661 100644 --- a/sql/sql_class.cc +++ b/sql/sql_class.cc @@ -243,7 +243,7 @@ THD::THD() time_after_lock=(time_t) 0; current_linfo = 0; slave_thread = 0; - variables.pseudo_thread_id= 0; + thread_id= variables.pseudo_thread_id= 0; one_shot_set= 0; file_id = 0; query_id= 0; @@ -267,9 +267,6 @@ THD::THD() cleanup_done= abort_on_warning= no_warnings_for_error= 0; peer_port= 0; // For SHOW PROCESSLIST transaction.m_pending_rows_event= 0; -#ifdef __WIN__ - real_id = 0; -#endif #ifdef SIGNAL_WITH_VIO_CLOSE active_vio = 0; #endif @@ -401,6 +398,8 @@ void THD::change_user(void) void THD::cleanup(void) { DBUG_ENTER("THD::cleanup"); + DBUG_ASSERT(cleanup_done == 0); + #ifdef ENABLE_WHEN_BINLOG_WILL_BE_ABLE_TO_PREPARE if (transaction.xid_state.xa_state == XA_PREPARED) { @@ -436,7 +435,6 @@ void THD::cleanup(void) pthread_mutex_lock(&LOCK_user_locks); item_user_lock_release(ull); pthread_mutex_unlock(&LOCK_user_locks); - ull= 0; } cleanup_done=1; @@ -550,7 +548,9 @@ void THD::awake(THD::killed_state state_to_set) killed= state_to_set; if (state_to_set != THD::KILL_QUERY) { - thr_alarm_kill(real_id); + thr_alarm_kill(thread_id); + if (!slave_thread) + thread_scheduler.post_kill_notification(this); #ifdef SIGNAL_WITH_VIO_CLOSE close_active_vio(); #endif @@ -601,18 +601,19 @@ bool THD::store_globals() Assert that thread_stack is initialized: it's necessary to be able to track stack overrun. */ - DBUG_ASSERT(this->thread_stack); + DBUG_ASSERT(thread_stack); if (my_pthread_setspecific_ptr(THR_THD, this) || my_pthread_setspecific_ptr(THR_MALLOC, &mem_root)) return 1; mysys_var=my_thread_var; - dbug_thread_id=my_thread_id(); /* - By default 'slave_proxy_id' is 'thread_id'. They may later become different - if this is the slave SQL thread. + Let mysqld define the thread id (not mysys) + This allows us to move THD to different threads if needed. */ - variables.pseudo_thread_id= thread_id; + mysys_var->id= thread_id; + real_id= pthread_self(); // For debugging + /* We have to call thr_lock_info_init() again here as THD may have been created in another thread @@ -2511,7 +2512,7 @@ my_size_t THD::pack_row(TABLE *table, MY_BITMAP const* cols, byte *row_data, if (bitmap_is_set(cols,i)) { my_ptrdiff_t const offset= - field->is_null(rec_offset) ? def_offset : rec_offset; + field->is_null((uint) rec_offset) ? def_offset : rec_offset; field->move_field_offset(offset); ptr= (byte*)field->pack((char *) ptr, field->ptr); field->move_field_offset(-offset); diff --git a/sql/sql_class.h b/sql/sql_class.h index 7babe1eda24..1f5f7aedbb4 100644 --- a/sql/sql_class.h +++ b/sql/sql_class.h @@ -214,7 +214,7 @@ struct system_variables ulong read_rnd_buff_size; ulong div_precincrement; ulong sortbuff_size; - handlerton *table_type; + ulong thread_handling; ulong tx_isolation; ulong completion_type; /* Determines which non-standard SQL behaviour should be enabled */ @@ -231,11 +231,15 @@ struct system_variables ulong trans_prealloc_size; ulong log_warnings; ulong group_concat_max_len; + ulong ndb_autoincrement_prefetch_sz; + ulong ndb_index_stat_cache_entries; + ulong ndb_index_stat_update_freq; + ulong binlog_format; // binlog format for this thd (see enum_binlog_format) /* In slave thread we need to know in behalf of which thread the query is being run to replicate temp tables properly */ - ulong pseudo_thread_id; + my_thread_id pseudo_thread_id; my_bool low_priority_updates; my_bool new_mode; @@ -248,14 +252,12 @@ struct system_variables my_bool ndb_use_exact_count; my_bool ndb_use_transactions; my_bool ndb_index_stat_enable; - ulong ndb_autoincrement_prefetch_sz; - ulong ndb_index_stat_cache_entries; - ulong ndb_index_stat_update_freq; - ulong binlog_format; // binlog format for this thd (see enum_binlog_format) my_bool old_alter_table; my_bool old_passwords; + handlerton *table_type; + /* Only charset part of these variables is sensible */ CHARSET_INFO *character_set_filesystem; CHARSET_INFO *character_set_client; @@ -1064,7 +1066,7 @@ public: } transaction; Field *dup_field; #ifndef __WIN__ - sigset_t signals,block_signals; + sigset_t signals; #endif #ifdef SIGNAL_WITH_VIO_CLOSE Vio* active_vio; @@ -1255,7 +1257,7 @@ public: update auto-updatable fields (like auto_increment and timestamp). */ query_id_t query_id, warn_id; - ulong thread_id, col_access; + ulong col_access; #ifdef ERROR_INJECT_SUPPORT ulong error_inject_value; @@ -1264,8 +1266,8 @@ public: ulong statement_id_counter; ulong rand_saved_seed1, rand_saved_seed2; ulong row_count; // Row counter, mainly for errors and warnings - long dbug_thread_id; - pthread_t real_id; + pthread_t real_id; /* For debugging */ + my_thread_id thread_id; uint tmp_table, global_read_lock; uint server_status,open_options; enum enum_thread_type system_thread; @@ -1629,6 +1631,7 @@ public: *p_db_length= db_length; return FALSE; } + thd_scheduler scheduler; }; diff --git a/sql/sql_connect.cc b/sql/sql_connect.cc new file mode 100644 index 00000000000..09ee4962235 --- /dev/null +++ b/sql/sql_connect.cc @@ -0,0 +1,1108 @@ +/* Copyright (C) 2007 MySQL AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + + +/* + Functions to autenticate and handle reqests for a connection +*/ + +#include "mysql_priv.h" + +#ifdef HAVE_OPENSSL +/* + Without SSL the handshake consists of one packet. This packet + has both client capabilites and scrambled password. + With SSL the handshake might consist of two packets. If the first + packet (client capabilities) has CLIENT_SSL flag set, we have to + switch to SSL and read the second packet. The scrambled password + is in the second packet and client_capabilites field will be ignored. + Maybe it is better to accept flags other than CLIENT_SSL from the + second packet? +*/ +#define SSL_HANDSHAKE_SIZE 2 +#define NORMAL_HANDSHAKE_SIZE 6 +#define MIN_HANDSHAKE_SIZE 2 +#else +#define MIN_HANDSHAKE_SIZE 6 +#endif /* HAVE_OPENSSL */ + +#ifdef __WIN__ +static void test_signal(int sig_ptr) +{ +#if !defined( DBUG_OFF) + MessageBox(NULL,"Test signal","DBUG",MB_OK); +#endif +#if defined(OS2) + fprintf(stderr, "Test signal %d\n", sig_ptr); + fflush(stderr); +#endif +} +static void init_signals(void) +{ + int signals[7] = {SIGINT,SIGILL,SIGFPE,SIGSEGV,SIGTERM,SIGBREAK,SIGABRT } ; + for (int i=0 ; i < 7 ; i++) + signal( signals[i], test_signal) ; +} +#endif + +/* + Get structure for logging connection data for the current user +*/ + +#ifndef NO_EMBEDDED_ACCESS_CHECKS +static HASH hash_user_connections; + +static int get_or_create_user_conn(THD *thd, const char *user, + const char *host, + USER_RESOURCES *mqh) +{ + int return_val= 0; + uint temp_len, user_len; + char temp_user[USER_HOST_BUFF_SIZE]; + struct user_conn *uc; + + DBUG_ASSERT(user != 0); + DBUG_ASSERT(host != 0); + + user_len= strlen(user); + temp_len= (strmov(strmov(temp_user, user)+1, host) - temp_user)+1; + (void) pthread_mutex_lock(&LOCK_user_conn); + if (!(uc = (struct user_conn *) hash_search(&hash_user_connections, + (byte*) temp_user, temp_len))) + { + /* First connection for user; Create a user connection object */ + if (!(uc= ((struct user_conn*) + my_malloc(sizeof(struct user_conn) + temp_len+1, + MYF(MY_WME))))) + { + net_send_error(thd, 0, NullS); // Out of memory + return_val= 1; + goto end; + } + uc->user=(char*) (uc+1); + memcpy(uc->user,temp_user,temp_len+1); + uc->host= uc->user + user_len + 1; + uc->len= temp_len; + uc->connections= uc->questions= uc->updates= uc->conn_per_hour= 0; + uc->user_resources= *mqh; + uc->intime= thd->thr_create_time; + if (my_hash_insert(&hash_user_connections, (byte*) uc)) + { + my_free((char*) uc,0); + net_send_error(thd, 0, NullS); // Out of memory + return_val= 1; + goto end; + } + } + thd->user_connect=uc; + uc->connections++; +end: + (void) pthread_mutex_unlock(&LOCK_user_conn); + return return_val; + +} + + +/* + check if user has already too many connections + + SYNOPSIS + check_for_max_user_connections() + thd Thread handle + uc User connect object + + NOTES + If check fails, we decrease user connection count, which means one + shouldn't call decrease_user_connections() after this function. + + RETURN + 0 ok + 1 error +*/ + +int check_for_max_user_connections(THD *thd, USER_CONN *uc) +{ + int error=0; + DBUG_ENTER("check_for_max_user_connections"); + + (void) pthread_mutex_lock(&LOCK_user_conn); + if (max_user_connections && !uc->user_resources.user_conn && + max_user_connections < (uint) uc->connections) + { + net_printf_error(thd, ER_TOO_MANY_USER_CONNECTIONS, uc->user); + error=1; + goto end; + } + time_out_user_resource_limits(thd, uc); + if (uc->user_resources.user_conn && + uc->user_resources.user_conn < uc->connections) + { + net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, + "max_user_connections", + (long) uc->user_resources.user_conn); + error= 1; + goto end; + } + if (uc->user_resources.conn_per_hour && + uc->user_resources.conn_per_hour <= uc->conn_per_hour) + { + net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, + "max_connections_per_hour", + (long) uc->user_resources.conn_per_hour); + error=1; + goto end; + } + uc->conn_per_hour++; + + end: + if (error) + uc->connections--; // no need for decrease_user_connections() here + (void) pthread_mutex_unlock(&LOCK_user_conn); + DBUG_RETURN(error); +} + + +/* + Decrease user connection count + + SYNOPSIS + decrease_user_connections() + uc User connection object + + NOTES + If there is a n user connection object for a connection + (which only happens if 'max_user_connections' is defined or + if someone has created a resource grant for a user), then + the connection count is always incremented on connect. + + The user connect object is not freed if some users has + 'max connections per hour' defined as we need to be able to hold + count over the lifetime of the connection. +*/ + +void decrease_user_connections(USER_CONN *uc) +{ + DBUG_ENTER("decrease_user_connections"); + (void) pthread_mutex_lock(&LOCK_user_conn); + DBUG_ASSERT(uc->connections); + if (!--uc->connections && !mqh_used) + { + /* Last connection for user; Delete it */ + (void) hash_delete(&hash_user_connections,(byte*) uc); + } + (void) pthread_mutex_unlock(&LOCK_user_conn); + DBUG_VOID_RETURN; +} + + +/* + Reset per-hour user resource limits when it has been more than + an hour since they were last checked + + SYNOPSIS: + time_out_user_resource_limits() + thd Thread handler + uc User connection details + + NOTE: + This assumes that the LOCK_user_conn mutex has been acquired, so it is + safe to test and modify members of the USER_CONN structure. +*/ + +void time_out_user_resource_limits(THD *thd, USER_CONN *uc) +{ + time_t check_time = thd->start_time ? thd->start_time : time(NULL); + DBUG_ENTER("time_out_user_resource_limits"); + + /* If more than a hour since last check, reset resource checking */ + if (check_time - uc->intime >= 3600) + { + uc->questions=1; + uc->updates=0; + uc->conn_per_hour=0; + uc->intime=check_time; + } + + DBUG_VOID_RETURN; +} + +/* + Check if maximum queries per hour limit has been reached + returns 0 if OK. +*/ + +bool check_mqh(THD *thd, uint check_command) +{ + bool error= 0; + USER_CONN *uc=thd->user_connect; + DBUG_ENTER("check_mqh"); + DBUG_ASSERT(uc != 0); + + (void) pthread_mutex_lock(&LOCK_user_conn); + + time_out_user_resource_limits(thd, uc); + + /* Check that we have not done too many questions / hour */ + if (uc->user_resources.questions && + uc->questions++ >= uc->user_resources.questions) + { + net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, "max_questions", + (long) uc->user_resources.questions); + error=1; + goto end; + } + if (check_command < (uint) SQLCOM_END) + { + /* Check that we have not done too many updates / hour */ + if (uc->user_resources.updates && + (sql_command_flags[check_command] & CF_CHANGES_DATA) && + uc->updates++ >= uc->user_resources.updates) + { + net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, "max_updates", + (long) uc->user_resources.updates); + error=1; + goto end; + } + } +end: + (void) pthread_mutex_unlock(&LOCK_user_conn); + DBUG_RETURN(error); +} + +#endif /* NO_EMBEDDED_ACCESS_CHECKS */ + + +/* + Check if user exist and password supplied is correct. + + SYNOPSIS + check_user() + thd thread handle, thd->security_ctx->{host,user,ip} are used + command originator of the check: now check_user is called + during connect and change user procedures; used for + logging. + passwd scrambled password received from client + passwd_len length of scrambled password + db database name to connect to, may be NULL + check_count dont know exactly + + Note, that host, user and passwd may point to communication buffer. + Current implementation does not depend on that, but future changes + should be done with this in mind; 'thd' is INOUT, all other params + are 'IN'. + + RETURN VALUE + 0 OK; thd->security_ctx->user/master_access/priv_user/db_access and + thd->db are updated; OK is sent to client; + -1 access denied or handshake error; error is sent to client; + >0 error, not sent to client +*/ + +int check_user(THD *thd, enum enum_server_command command, + const char *passwd, uint passwd_len, const char *db, + bool check_count) +{ + DBUG_ENTER("check_user"); + +#ifdef NO_EMBEDDED_ACCESS_CHECKS + thd->main_security_ctx.master_access= GLOBAL_ACLS; // Full rights + /* Change database if necessary */ + if (db && db[0]) + { + /* + thd->db is saved in caller and needs to be freed by caller if this + function returns 0 + */ + thd->reset_db(NULL, 0); + if (mysql_change_db(thd, db, FALSE)) + { + /* Send the error to the client */ + net_send_error(thd); + DBUG_RETURN(-1); + } + } + send_ok(thd); + DBUG_RETURN(0); +#else + + my_bool opt_secure_auth_local; + pthread_mutex_lock(&LOCK_global_system_variables); + opt_secure_auth_local= opt_secure_auth; + pthread_mutex_unlock(&LOCK_global_system_variables); + + /* + If the server is running in secure auth mode, short scrambles are + forbidden. + */ + if (opt_secure_auth_local && passwd_len == SCRAMBLE_LENGTH_323) + { + net_printf_error(thd, ER_NOT_SUPPORTED_AUTH_MODE); + general_log_print(thd, COM_CONNECT, ER(ER_NOT_SUPPORTED_AUTH_MODE)); + DBUG_RETURN(-1); + } + if (passwd_len != 0 && + passwd_len != SCRAMBLE_LENGTH && + passwd_len != SCRAMBLE_LENGTH_323) + DBUG_RETURN(ER_HANDSHAKE_ERROR); + + /* + Clear thd->db as it points to something, that will be freed when + connection is closed. We don't want to accidentally free a wrong pointer + if connect failed. Also in case of 'CHANGE USER' failure, current + database will be switched to 'no database selected'. + */ + thd->reset_db(NULL, 0); + + USER_RESOURCES ur; + int res= acl_getroot(thd, &ur, passwd, passwd_len); +#ifndef EMBEDDED_LIBRARY + if (res == -1) + { + /* + This happens when client (new) sends password scrambled with + scramble(), but database holds old value (scrambled with + scramble_323()). Here we please client to send scrambled_password + in old format. + */ + NET *net= &thd->net; + if (opt_secure_auth_local) + { + net_printf_error(thd, ER_SERVER_IS_IN_SECURE_AUTH_MODE, + thd->main_security_ctx.user, + thd->main_security_ctx.host_or_ip); + general_log_print(thd, COM_CONNECT, ER(ER_SERVER_IS_IN_SECURE_AUTH_MODE), + thd->main_security_ctx.user, + thd->main_security_ctx.host_or_ip); + DBUG_RETURN(-1); + } + /* We have to read very specific packet size */ + if (send_old_password_request(thd) || + my_net_read(net) != SCRAMBLE_LENGTH_323 + 1) + { + inc_host_errors(&thd->remote.sin_addr); + DBUG_RETURN(ER_HANDSHAKE_ERROR); + } + /* Final attempt to check the user based on reply */ + /* So as passwd is short, errcode is always >= 0 */ + res= acl_getroot(thd, &ur, (char *) net->read_pos, SCRAMBLE_LENGTH_323); + } +#endif /*EMBEDDED_LIBRARY*/ + /* here res is always >= 0 */ + if (res == 0) + { + if (!(thd->main_security_ctx.master_access & + NO_ACCESS)) // authentication is OK + { + DBUG_PRINT("info", + ("Capabilities: %lu packet_length: %ld Host: '%s' " + "Login user: '%s' Priv_user: '%s' Using password: %s " + "Access: %lu db: '%s'", + thd->client_capabilities, + thd->max_client_packet_length, + thd->main_security_ctx.host_or_ip, + thd->main_security_ctx.user, + thd->main_security_ctx.priv_user, + passwd_len ? "yes": "no", + thd->main_security_ctx.master_access, + (thd->db ? thd->db : "*none*"))); + + if (check_count) + { + VOID(pthread_mutex_lock(&LOCK_thread_count)); + bool count_ok= thread_count <= max_connections + delayed_insert_threads + || (thd->main_security_ctx.master_access & SUPER_ACL); + VOID(pthread_mutex_unlock(&LOCK_thread_count)); + if (!count_ok) + { // too many connections + net_send_error(thd, ER_CON_COUNT_ERROR); + DBUG_RETURN(-1); + } + } + + /* + Log the command before authentication checks, so that the user can + check the log for the tried login tried and also to detect + break-in attempts. + */ + general_log_print(thd, command, + (thd->main_security_ctx.priv_user == + thd->main_security_ctx.user ? + (char*) "%s@%s on %s" : + (char*) "%s@%s as anonymous on %s"), + thd->main_security_ctx.user, + thd->main_security_ctx.host_or_ip, + db ? db : (char*) ""); + + /* + This is the default access rights for the current database. It's + set to 0 here because we don't have an active database yet (and we + may not have an active database to set. + */ + thd->main_security_ctx.db_access=0; + + /* Don't allow user to connect if he has done too many queries */ + if ((ur.questions || ur.updates || ur.conn_per_hour || ur.user_conn || + max_user_connections) && + get_or_create_user_conn(thd, + (opt_old_style_user_limits ? thd->main_security_ctx.user : + thd->main_security_ctx.priv_user), + (opt_old_style_user_limits ? thd->main_security_ctx.host_or_ip : + thd->main_security_ctx.priv_host), + &ur)) + DBUG_RETURN(-1); + if (thd->user_connect && + (thd->user_connect->user_resources.conn_per_hour || + thd->user_connect->user_resources.user_conn || + max_user_connections) && + check_for_max_user_connections(thd, thd->user_connect)) + DBUG_RETURN(-1); + + /* Change database if necessary */ + if (db && db[0]) + { + if (mysql_change_db(thd, db, FALSE)) + { + /* Send error to the client */ + net_send_error(thd); + if (thd->user_connect) + decrease_user_connections(thd->user_connect); + DBUG_RETURN(-1); + } + } + send_ok(thd); + thd->password= test(passwd_len); // remember for error messages + /* Ready to handle queries */ + DBUG_RETURN(0); + } + } + else if (res == 2) // client gave short hash, server has long hash + { + net_printf_error(thd, ER_NOT_SUPPORTED_AUTH_MODE); + general_log_print(thd, COM_CONNECT, ER(ER_NOT_SUPPORTED_AUTH_MODE)); + DBUG_RETURN(-1); + } + net_printf_error(thd, ER_ACCESS_DENIED_ERROR, + thd->main_security_ctx.user, + thd->main_security_ctx.host_or_ip, + passwd_len ? ER(ER_YES) : ER(ER_NO)); + general_log_print(thd, COM_CONNECT, ER(ER_ACCESS_DENIED_ERROR), + thd->main_security_ctx.user, + thd->main_security_ctx.host_or_ip, + passwd_len ? ER(ER_YES) : ER(ER_NO)); + DBUG_RETURN(-1); +#endif /* NO_EMBEDDED_ACCESS_CHECKS */ +} + + +/* + Check for maximum allowable user connections, if the mysqld server is + started with corresponding variable that is greater then 0. +*/ + +extern "C" byte *get_key_conn(user_conn *buff, uint *length, + my_bool not_used __attribute__((unused))) +{ + *length=buff->len; + return (byte*) buff->user; +} + + +extern "C" void free_user(struct user_conn *uc) +{ + my_free((char*) uc,MYF(0)); +} + + +void init_max_user_conn(void) +{ +#ifndef NO_EMBEDDED_ACCESS_CHECKS + (void) hash_init(&hash_user_connections,system_charset_info,max_connections, + 0,0, + (hash_get_key) get_key_conn, (hash_free_key) free_user, + 0); +#endif +} + + +void free_max_user_conn(void) +{ +#ifndef NO_EMBEDDED_ACCESS_CHECKS + hash_free(&hash_user_connections); +#endif /* NO_EMBEDDED_ACCESS_CHECKS */ +} + + +void reset_mqh(LEX_USER *lu, bool get_them= 0) +{ +#ifndef NO_EMBEDDED_ACCESS_CHECKS + (void) pthread_mutex_lock(&LOCK_user_conn); + if (lu) // for GRANT + { + USER_CONN *uc; + uint temp_len=lu->user.length+lu->host.length+2; + char temp_user[USER_HOST_BUFF_SIZE]; + + memcpy(temp_user,lu->user.str,lu->user.length); + memcpy(temp_user+lu->user.length+1,lu->host.str,lu->host.length); + temp_user[lu->user.length]='\0'; temp_user[temp_len-1]=0; + if ((uc = (struct user_conn *) hash_search(&hash_user_connections, + (byte*) temp_user, temp_len))) + { + uc->questions=0; + get_mqh(temp_user,&temp_user[lu->user.length+1],uc); + uc->updates=0; + uc->conn_per_hour=0; + } + } + else + { + /* for FLUSH PRIVILEGES and FLUSH USER_RESOURCES */ + for (uint idx=0;idx < hash_user_connections.records; idx++) + { + USER_CONN *uc=(struct user_conn *) hash_element(&hash_user_connections, + idx); + if (get_them) + get_mqh(uc->user,uc->host,uc); + uc->questions=0; + uc->updates=0; + uc->conn_per_hour=0; + } + } + (void) pthread_mutex_unlock(&LOCK_user_conn); +#endif /* NO_EMBEDDED_ACCESS_CHECKS */ +} + + +void thd_init_client_charset(THD *thd, uint cs_number) +{ + /* + Use server character set and collation if + - opt_character_set_client_handshake is not set + - client has not specified a character set + - client character set is the same as the servers + - client character set doesn't exists in server + */ + if (!opt_character_set_client_handshake || + !(thd->variables.character_set_client= get_charset(cs_number, MYF(0))) || + !my_strcasecmp(&my_charset_latin1, + global_system_variables.character_set_client->name, + thd->variables.character_set_client->name)) + { + thd->variables.character_set_client= + global_system_variables.character_set_client; + thd->variables.collation_connection= + global_system_variables.collation_connection; + thd->variables.character_set_results= + global_system_variables.character_set_results; + } + else + { + thd->variables.character_set_results= + thd->variables.collation_connection= + thd->variables.character_set_client; + } +} + + +/* + Initialize connection threads +*/ + +bool init_new_connection_handler_thread() +{ + pthread_detach_this_thread(); +#if defined(__WIN__) + init_signals(); +#else + /* Win32 calls this in pthread_create */ + if (my_thread_init()) + return 1; +#endif /* __WIN__ */ + return 0; +} + +/* + Perform handshake, authorize client and update thd ACL variables. + + SYNOPSIS + check_connection() + thd thread handle + + RETURN + 0 success, OK is sent to user, thd is updated. + -1 error, which is sent to user + > 0 error code (not sent to user) +*/ + +#ifndef EMBEDDED_LIBRARY +static int check_connection(THD *thd) +{ + uint connect_errors= 0; + NET *net= &thd->net; + ulong pkt_len= 0; + char *end; + + DBUG_PRINT("info", + ("New connection received on %s", vio_description(net->vio))); +#ifdef SIGNAL_WITH_VIO_CLOSE + thd->set_active_vio(net->vio); +#endif + + if (!thd->main_security_ctx.host) // If TCP/IP connection + { + char ip[30]; + + if (vio_peer_addr(net->vio, ip, &thd->peer_port)) + return (ER_BAD_HOST_ERROR); + if (!(thd->main_security_ctx.ip= my_strdup(ip,MYF(0)))) + return (ER_OUT_OF_RESOURCES); + thd->main_security_ctx.host_or_ip= thd->main_security_ctx.ip; + vio_in_addr(net->vio,&thd->remote.sin_addr); + if (!(specialflag & SPECIAL_NO_RESOLVE)) + { + vio_in_addr(net->vio,&thd->remote.sin_addr); + thd->main_security_ctx.host= + ip_to_hostname(&thd->remote.sin_addr, &connect_errors); + /* Cut very long hostnames to avoid possible overflows */ + if (thd->main_security_ctx.host) + { + if (thd->main_security_ctx.host != my_localhost) + thd->main_security_ctx.host[min(strlen(thd->main_security_ctx.host), + HOSTNAME_LENGTH)]= 0; + thd->main_security_ctx.host_or_ip= thd->main_security_ctx.host; + } + if (connect_errors > max_connect_errors) + return(ER_HOST_IS_BLOCKED); + } + DBUG_PRINT("info",("Host: %s ip: %s", + (thd->main_security_ctx.host ? + thd->main_security_ctx.host : "unknown host"), + (thd->main_security_ctx.ip ? + thd->main_security_ctx.ip : "unknown ip"))); + if (acl_check_host(thd->main_security_ctx.host, thd->main_security_ctx.ip)) + return(ER_HOST_NOT_PRIVILEGED); + } + else /* Hostname given means that the connection was on a socket */ + { + DBUG_PRINT("info",("Host: %s", thd->main_security_ctx.host)); + thd->main_security_ctx.host_or_ip= thd->main_security_ctx.host; + thd->main_security_ctx.ip= 0; + /* Reset sin_addr */ + bzero((char*) &thd->remote, sizeof(thd->remote)); + } + vio_keepalive(net->vio, TRUE); + { + /* buff[] needs to big enough to hold the server_version variable */ + char buff[SERVER_VERSION_LENGTH + SCRAMBLE_LENGTH + 64]; + ulong client_flags = (CLIENT_LONG_FLAG | CLIENT_CONNECT_WITH_DB | + CLIENT_PROTOCOL_41 | CLIENT_SECURE_CONNECTION); + + if (opt_using_transactions) + client_flags|=CLIENT_TRANSACTIONS; +#ifdef HAVE_COMPRESS + client_flags |= CLIENT_COMPRESS; +#endif /* HAVE_COMPRESS */ +#ifdef HAVE_OPENSSL + if (ssl_acceptor_fd) + client_flags |= CLIENT_SSL; /* Wow, SSL is available! */ +#endif /* HAVE_OPENSSL */ + + end= strnmov(buff, server_version, SERVER_VERSION_LENGTH) + 1; + int4store((uchar*) end, thd->thread_id); + end+= 4; + /* + So as check_connection is the only entry point to authorization + procedure, scramble is set here. This gives us new scramble for + each handshake. + */ + create_random_string(thd->scramble, SCRAMBLE_LENGTH, &thd->rand); + /* + Old clients does not understand long scrambles, but can ignore packet + tail: that's why first part of the scramble is placed here, and second + part at the end of packet. + */ + end= strmake(end, thd->scramble, SCRAMBLE_LENGTH_323) + 1; + + int2store(end, client_flags); + /* write server characteristics: up to 16 bytes allowed */ + end[2]=(char) default_charset_info->number; + int2store(end+3, thd->server_status); + bzero(end+5, 13); + end+= 18; + /* write scramble tail */ + end= strmake(end, thd->scramble + SCRAMBLE_LENGTH_323, + SCRAMBLE_LENGTH - SCRAMBLE_LENGTH_323) + 1; + + /* At this point we write connection message and read reply */ + if (net_write_command(net, (uchar) protocol_version, "", 0, buff, + (uint) (end-buff)) || + (pkt_len= my_net_read(net)) == packet_error || + pkt_len < MIN_HANDSHAKE_SIZE) + { + inc_host_errors(&thd->remote.sin_addr); + return(ER_HANDSHAKE_ERROR); + } + } +#ifdef _CUSTOMCONFIG_ +#include "_cust_sql_parse.h" +#endif + if (connect_errors) + reset_host_errors(&thd->remote.sin_addr); + if (thd->packet.alloc(thd->variables.net_buffer_length)) + return(ER_OUT_OF_RESOURCES); + + thd->client_capabilities=uint2korr(net->read_pos); + if (thd->client_capabilities & CLIENT_PROTOCOL_41) + { + thd->client_capabilities|= ((ulong) uint2korr(net->read_pos+2)) << 16; + thd->max_client_packet_length= uint4korr(net->read_pos+4); + DBUG_PRINT("info", ("client_character_set: %d", (uint) net->read_pos[8])); + thd_init_client_charset(thd, (uint) net->read_pos[8]); + thd->update_charset(); + end= (char*) net->read_pos+32; + } + else + { + thd->max_client_packet_length= uint3korr(net->read_pos+2); + end= (char*) net->read_pos+5; + } + + if (thd->client_capabilities & CLIENT_IGNORE_SPACE) + thd->variables.sql_mode|= MODE_IGNORE_SPACE; +#ifdef HAVE_OPENSSL + DBUG_PRINT("info", ("client capabilities: %lu", thd->client_capabilities)); + if (thd->client_capabilities & CLIENT_SSL) + { + /* Do the SSL layering. */ + if (!ssl_acceptor_fd) + { + inc_host_errors(&thd->remote.sin_addr); + return(ER_HANDSHAKE_ERROR); + } + DBUG_PRINT("info", ("IO layer change in progress...")); + if (sslaccept(ssl_acceptor_fd, net->vio, net->read_timeout)) + { + DBUG_PRINT("error", ("Failed to accept new SSL connection")); + inc_host_errors(&thd->remote.sin_addr); + return(ER_HANDSHAKE_ERROR); + } + DBUG_PRINT("info", ("Reading user information over SSL layer")); + if ((pkt_len= my_net_read(net)) == packet_error || + pkt_len < NORMAL_HANDSHAKE_SIZE) + { + DBUG_PRINT("error", ("Failed to read user information (pkt_len= %lu)", + pkt_len)); + inc_host_errors(&thd->remote.sin_addr); + return(ER_HANDSHAKE_ERROR); + } + } +#endif /* HAVE_OPENSSL */ + + if (end >= (char*) net->read_pos+ pkt_len +2) + { + inc_host_errors(&thd->remote.sin_addr); + return(ER_HANDSHAKE_ERROR); + } + + if (thd->client_capabilities & CLIENT_INTERACTIVE) + thd->variables.net_wait_timeout= thd->variables.net_interactive_timeout; + if ((thd->client_capabilities & CLIENT_TRANSACTIONS) && + opt_using_transactions) + net->return_status= &thd->server_status; + + char *user= end; + char *passwd= strend(user)+1; + uint user_len= passwd - user - 1; + char *db= passwd; + char db_buff[NAME_LEN + 1]; // buffer to store db in utf8 + char user_buff[USERNAME_LENGTH + 1]; // buffer to store user in utf8 + uint dummy_errors; + + /* + Old clients send null-terminated string as password; new clients send + the size (1 byte) + string (not null-terminated). Hence in case of empty + password both send '\0'. + + This strlen() can't be easily deleted without changing protocol. + */ + uint passwd_len= thd->client_capabilities & CLIENT_SECURE_CONNECTION ? + *passwd++ : strlen(passwd); + db= thd->client_capabilities & CLIENT_CONNECT_WITH_DB ? + db + passwd_len + 1 : 0; + /* strlen() can't be easily deleted without changing protocol */ + uint db_len= db ? strlen(db) : 0; + + if (passwd + passwd_len + db_len > (char *)net->read_pos + pkt_len) + { + inc_host_errors(&thd->remote.sin_addr); + return ER_HANDSHAKE_ERROR; + } + + /* Since 4.1 all database names are stored in utf8 */ + if (db) + { + db_buff[copy_and_convert(db_buff, sizeof(db_buff)-1, + system_charset_info, + db, db_len, + thd->charset(), &dummy_errors)]= 0; + db= db_buff; + } + + user_buff[user_len= copy_and_convert(user_buff, sizeof(user_buff)-1, + system_charset_info, user, user_len, + thd->charset(), &dummy_errors)]= '\0'; + user= user_buff; + + /* If username starts and ends in "'", chop them off */ + if (user_len > 1 && user[0] == '\'' && user[user_len - 1] == '\'') + { + user[user_len-1]= 0; + user++; + user_len-= 2; + } + + if (thd->main_security_ctx.user) + x_free(thd->main_security_ctx.user); + if (!(thd->main_security_ctx.user= my_strdup(user, MYF(0)))) + return (ER_OUT_OF_RESOURCES); + return check_user(thd, COM_CONNECT, passwd, passwd_len, db, TRUE); +} + + +/* + Setup thread to be used with the current thread + + SYNOPSIS + bool setup_connection_thread_globals() + thd Thread/connection handler + + RETURN + 0 ok + 1 Error (out of memory) + In this case we will close the connection and increment status +*/ + +bool setup_connection_thread_globals(THD *thd) +{ + if (thd->store_globals()) + { + close_connection(thd, ER_OUT_OF_RESOURCES, 1); + statistic_increment(aborted_connects,&LOCK_status); + thread_scheduler.end_thread(thd, 0); + return 1; // Error + } + return 0; +} + + +/* + Autenticate user, with error reporting + + SYNOPSIS + login_connection() + thd Thread handler + + NOTES + Connection is not closed in case of errors + + RETURN + 0 ok + 1 error +*/ + + +bool login_connection(THD *thd) +{ + int error; + NET *net= &thd->net; + Security_context *sctx= thd->security_ctx; + DBUG_ENTER("login_connection"); + DBUG_PRINT("info", ("handle_one_connection called by thread %lu", + thd->thread_id)); + + net->no_send_error= 0; + + /* Use "connect_timeout" value during connection phase */ + net_set_read_timeout(net, connect_timeout); + net_set_write_timeout(net, connect_timeout); + + if ((error=check_connection(thd))) + { // Wrong permissions + if (error > 0) + net_printf_error(thd, error, sctx->host_or_ip); +#ifdef __NT__ + if (vio_type(net->vio) == VIO_TYPE_NAMEDPIPE) + my_sleep(1000); /* must wait after eof() */ +#endif + statistic_increment(aborted_connects,&LOCK_status); + DBUG_RETURN(1); + } + /* Connect completed, set read/write timeouts back to default */ + net_set_read_timeout(net, thd->variables.net_read_timeout); + net_set_write_timeout(net, thd->variables.net_write_timeout); + DBUG_RETURN(0); +} + + +/* + Close an established connection + + NOTES + This mainly updates status variables +*/ + +void end_connection(THD *thd) +{ + NET *net= &thd->net; + if (thd->user_connect) + decrease_user_connections(thd->user_connect); + if (net->error && net->vio != 0 && net->report_error) + { + Security_context *sctx= thd->security_ctx; + if (!thd->killed && thd->variables.log_warnings > 1) + sql_print_warning(ER(ER_NEW_ABORTING_CONNECTION), + thd->thread_id,(thd->db ? thd->db : "unconnected"), + sctx->user ? sctx->user : "unauthenticated", + sctx->host_or_ip, + (net->last_errno ? ER(net->last_errno) : + ER(ER_UNKNOWN_ERROR))); + net_send_error(thd, net->last_errno, NullS); + statistic_increment(aborted_threads,&LOCK_status); + } + else if (thd->killed) + statistic_increment(aborted_threads,&LOCK_status); +} + + +/* + Initialize THD to handle queries +*/ + +void prepare_new_connection_state(THD* thd) +{ + Security_context *sctx= thd->security_ctx; + +#ifdef __NETWARE__ + netware_reg_user(sctx->ip, sctx->user, "MySQL"); +#endif + + if (thd->variables.max_join_size == HA_POS_ERROR) + thd->options |= OPTION_BIG_SELECTS; + if (thd->client_capabilities & CLIENT_COMPRESS) + thd->net.compress=1; // Use compression + + thd->version= refresh_version; + thd->proc_info= 0; + thd->command= COM_SLEEP; + thd->set_time(); + thd->init_for_queries(); + + if (sys_init_connect.value_length && !(sctx->master_access & SUPER_ACL)) + { + execute_init_command(thd, &sys_init_connect, &LOCK_sys_init_connect); + if (thd->query_error) + { + thd->killed= THD::KILL_CONNECTION; + sql_print_warning(ER(ER_NEW_ABORTING_CONNECTION), + thd->thread_id,(thd->db ? thd->db : "unconnected"), + sctx->user ? sctx->user : "unauthenticated", + sctx->host_or_ip, "init_connect command failed"); + sql_print_warning("%s", thd->net.last_error); + } + thd->proc_info=0; + thd->set_time(); + thd->init_for_queries(); + } +} + + +/* + Thread handler for a connection + + SYNOPSIS + handle_one_connection() + arg Connection object (THD) + + IMPLEMENTATION + This function (normally) does the following: + - Initialize thread + - Initialize THD to be used with this thread + - Authenticate user + - Execute all queries sent on the connection + - Take connection down + - End thread / Handle next connection using thread from thread cache +*/ + +pthread_handler_t handle_one_connection(void *arg) +{ + THD *thd= (THD*) arg; + uint launch_time = + (uint) ((thd->thr_create_time = time(NULL)) - thd->connect_time); + + if (thread_scheduler.init_new_connection_thread()) + { + close_connection(thd, ER_OUT_OF_RESOURCES, 1); + statistic_increment(aborted_connects,&LOCK_status); + thread_scheduler.end_thread(thd,0); + return 0; + } + if (launch_time >= slow_launch_time) + statistic_increment(slow_launch_threads,&LOCK_status); + + /* + handle_one_connection() is normally the only way a thread would + start and would always be on the very high end of the stack , + therefore, the thread stack always starts at the address of the + first local variable of handle_one_connection, which is thd. We + need to know the start of the stack so that we could check for + stack overruns. + */ + thd->thread_stack= (char*) &thd; + if (setup_connection_thread_globals(thd)) + return 0; + + for (;;) + { + NET *net= &thd->net; + + if (login_connection(thd)) + goto end_thread; + + prepare_new_connection_state(thd); + + while (!net->error && net->vio != 0 && + !(thd->killed == THD::KILL_CONNECTION)) + { + net->no_send_error= 0; + if (do_command(thd)) + break; + } + end_connection(thd); + +end_thread: + close_connection(thd, 0, 1); + if (thread_scheduler.end_thread(thd,1)) + return 0; // Probably no-threads + + /* + If end_thread() returns, we are either running with + thread-handler=no-threads or this thread has been schedule to + handle the next connection. + */ + thd= current_thd; + thd->thread_stack= (char*) &thd; + } +} +#endif /* EMBEDDED_LIBRARY */ diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc index 9b66d5c5148..6f4cdbba3dd 100644 --- a/sql/sql_insert.cc +++ b/sql/sql_insert.cc @@ -396,6 +396,7 @@ bool mysql_insert(THD *thd,TABLE_LIST *table_list, #ifndef EMBEDDED_LIBRARY if (lock_type == TL_WRITE_DELAYED) { + res= 1; if (thd->locked_tables) { DBUG_ASSERT(table_list->db); /* Must be set in the parser */ @@ -1897,7 +1898,7 @@ pthread_handler_t handle_delayed_insert(void *arg) pthread_detach_this_thread(); /* Add thread to THD list so that's it's visible in 'show processlist' */ pthread_mutex_lock(&LOCK_thread_count); - thd->thread_id=thread_id++; + thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; thd->end_time(); threads.append(thd); thd->killed=abort_loop ? THD::KILL_CONNECTION : THD::NOT_KILLED; @@ -1928,14 +1929,8 @@ pthread_handler_t handle_delayed_insert(void *arg) strmov(thd->net.last_error,ER(thd->net.last_errno=ER_OUT_OF_RESOURCES)); goto err; } -#if !defined(__WIN__) && !defined(__NETWARE__) - sigset_t set; - VOID(sigemptyset(&set)); // Get mask in use - VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals)); -#endif /* open table */ - if (!(di->table=open_ltable(thd,&di->table_list,TL_WRITE_DELAYED))) { thd->fatal_error(); // Abort waiting inserts diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc index b45859c4e28..ce7f34e3a06 100644 --- a/sql/sql_parse.cc +++ b/sql/sql_parse.cc @@ -28,24 +28,6 @@ #include "events.h" #include "event_data_objects.h" -#ifdef HAVE_OPENSSL -/* - Without SSL the handshake consists of one packet. This packet - has both client capabilites and scrambled password. - With SSL the handshake might consist of two packets. If the first - packet (client capabilities) has CLIENT_SSL flag set, we have to - switch to SSL and read the second packet. The scrambled password - is in the second packet and client_capabilites field will be ignored. - Maybe it is better to accept flags other than CLIENT_SSL from the - second packet? -*/ -#define SSL_HANDSHAKE_SIZE 2 -#define NORMAL_HANDSHAKE_SIZE 6 -#define MIN_HANDSHAKE_SIZE 2 -#else -#define MIN_HANDSHAKE_SIZE 6 -#endif /* HAVE_OPENSSL */ - /* Used in error handling only */ #define SP_TYPE_STRING(LP) \ ((LP)->sphead->m_type == TYPE_ENUM_FUNCTION ? "FUNCTION" : "PROCEDURE") @@ -56,11 +38,6 @@ (LP)->sql_command == SQLCOM_DROP_FUNCTION ? \ "FUNCTION" : "PROCEDURE") -#ifndef NO_EMBEDDED_ACCESS_CHECKS -static void time_out_user_resource_limits(THD *thd, USER_CONN *uc); -static int check_for_max_user_connections(THD *thd, USER_CONN *uc); -static void decrease_user_connections(USER_CONN *uc); -#endif /* NO_EMBEDDED_ACCESS_CHECKS */ static bool execute_sqlcom_select(THD *thd, TABLE_LIST *all_tables); const char *any_db="*any*"; // Special symbol for check_access @@ -103,20 +80,6 @@ const char *xa_state_names[]={ "NON-EXISTING", "ACTIVE", "IDLE", "PREPARED" }; -#ifdef __WIN__ -static void test_signal(int sig_ptr) -{ -#if !defined( DBUG_OFF) - MessageBox(NULL,"Test signal","DBUG",MB_OK); -#endif -} -static void init_signals(void) -{ - int signals[7] = {SIGINT,SIGILL,SIGFPE,SIGSEGV,SIGTERM,SIGBREAK,SIGABRT } ; - for (int i=0 ; i < 7 ; i++) - signal( signals[i], test_signal) ; -} -#endif static void unlock_locked_tables(THD *thd) { @@ -160,6 +123,7 @@ bool end_active_trans(THD *thd) DBUG_RETURN(error); } + bool begin_trans(THD *thd) { int error=0; @@ -211,413 +175,6 @@ static bool some_non_temp_table_to_be_updated(THD *thd, TABLE_LIST *tables) return 0; } -#ifndef NO_EMBEDDED_ACCESS_CHECKS -static HASH hash_user_connections; - -static int get_or_create_user_conn(THD *thd, const char *user, - const char *host, - USER_RESOURCES *mqh) -{ - int return_val= 0; - uint temp_len, user_len; - char temp_user[USER_HOST_BUFF_SIZE]; - struct user_conn *uc; - - DBUG_ASSERT(user != 0); - DBUG_ASSERT(host != 0); - - user_len= strlen(user); - temp_len= (strmov(strmov(temp_user, user)+1, host) - temp_user)+1; - (void) pthread_mutex_lock(&LOCK_user_conn); - if (!(uc = (struct user_conn *) hash_search(&hash_user_connections, - (byte*) temp_user, temp_len))) - { - /* First connection for user; Create a user connection object */ - if (!(uc= ((struct user_conn*) - my_malloc(sizeof(struct user_conn) + temp_len+1, - MYF(MY_WME))))) - { - net_send_error(thd, 0, NullS); // Out of memory - return_val= 1; - goto end; - } - uc->user=(char*) (uc+1); - memcpy(uc->user,temp_user,temp_len+1); - uc->host= uc->user + user_len + 1; - uc->len= temp_len; - uc->connections= uc->questions= uc->updates= uc->conn_per_hour= 0; - uc->user_resources= *mqh; - uc->intime= thd->thr_create_time; - if (my_hash_insert(&hash_user_connections, (byte*) uc)) - { - my_free((char*) uc,0); - net_send_error(thd, 0, NullS); // Out of memory - return_val= 1; - goto end; - } - } - thd->user_connect=uc; - uc->connections++; -end: - (void) pthread_mutex_unlock(&LOCK_user_conn); - return return_val; - -} -#endif /* !NO_EMBEDDED_ACCESS_CHECKS */ - - -/* - Check if user exist and password supplied is correct. - - SYNOPSIS - check_user() - thd thread handle, thd->security_ctx->{host,user,ip} are used - command originator of the check: now check_user is called - during connect and change user procedures; used for - logging. - passwd scrambled password received from client - passwd_len length of scrambled password - db database name to connect to, may be NULL - check_count dont know exactly - - Note, that host, user and passwd may point to communication buffer. - Current implementation does not depend on that, but future changes - should be done with this in mind; 'thd' is INOUT, all other params - are 'IN'. - - RETURN VALUE - 0 OK; thd->security_ctx->user/master_access/priv_user/db_access and - thd->db are updated; OK is sent to client; - -1 access denied or handshake error; error is sent to client; - >0 error, not sent to client -*/ - -int check_user(THD *thd, enum enum_server_command command, - const char *passwd, uint passwd_len, const char *db, - bool check_count) -{ - DBUG_ENTER("check_user"); - -#ifdef NO_EMBEDDED_ACCESS_CHECKS - thd->main_security_ctx.master_access= GLOBAL_ACLS; // Full rights - /* Change database if necessary */ - if (db && db[0]) - { - /* - thd->db is saved in caller and needs to be freed by caller if this - function returns 0 - */ - thd->reset_db(NULL, 0); - if (mysql_change_db(thd, db, FALSE)) - { - /* Send the error to the client */ - net_send_error(thd); - DBUG_RETURN(-1); - } - } - send_ok(thd); - DBUG_RETURN(0); -#else - - my_bool opt_secure_auth_local; - pthread_mutex_lock(&LOCK_global_system_variables); - opt_secure_auth_local= opt_secure_auth; - pthread_mutex_unlock(&LOCK_global_system_variables); - - /* - If the server is running in secure auth mode, short scrambles are - forbidden. - */ - if (opt_secure_auth_local && passwd_len == SCRAMBLE_LENGTH_323) - { - net_printf_error(thd, ER_NOT_SUPPORTED_AUTH_MODE); - general_log_print(thd, COM_CONNECT, ER(ER_NOT_SUPPORTED_AUTH_MODE)); - DBUG_RETURN(-1); - } - if (passwd_len != 0 && - passwd_len != SCRAMBLE_LENGTH && - passwd_len != SCRAMBLE_LENGTH_323) - DBUG_RETURN(ER_HANDSHAKE_ERROR); - - /* - Clear thd->db as it points to something, that will be freed when - connection is closed. We don't want to accidentally free a wrong pointer - if connect failed. Also in case of 'CHANGE USER' failure, current - database will be switched to 'no database selected'. - */ - thd->reset_db(NULL, 0); - - USER_RESOURCES ur; - int res= acl_getroot(thd, &ur, passwd, passwd_len); -#ifndef EMBEDDED_LIBRARY - if (res == -1) - { - /* - This happens when client (new) sends password scrambled with - scramble(), but database holds old value (scrambled with - scramble_323()). Here we please client to send scrambled_password - in old format. - */ - NET *net= &thd->net; - if (opt_secure_auth_local) - { - net_printf_error(thd, ER_SERVER_IS_IN_SECURE_AUTH_MODE, - thd->main_security_ctx.user, - thd->main_security_ctx.host_or_ip); - general_log_print(thd, COM_CONNECT, ER(ER_SERVER_IS_IN_SECURE_AUTH_MODE), - thd->main_security_ctx.user, - thd->main_security_ctx.host_or_ip); - DBUG_RETURN(-1); - } - /* We have to read very specific packet size */ - if (send_old_password_request(thd) || - my_net_read(net) != SCRAMBLE_LENGTH_323 + 1) - { - inc_host_errors(&thd->remote.sin_addr); - DBUG_RETURN(ER_HANDSHAKE_ERROR); - } - /* Final attempt to check the user based on reply */ - /* So as passwd is short, errcode is always >= 0 */ - res= acl_getroot(thd, &ur, (char *) net->read_pos, SCRAMBLE_LENGTH_323); - } -#endif /*EMBEDDED_LIBRARY*/ - /* here res is always >= 0 */ - if (res == 0) - { - if (!(thd->main_security_ctx.master_access & - NO_ACCESS)) // authentication is OK - { - DBUG_PRINT("info", - ("Capabilities: %lu packet_length: %ld Host: '%s' " - "Login user: '%s' Priv_user: '%s' Using password: %s " - "Access: %lu db: '%s'", - thd->client_capabilities, - thd->max_client_packet_length, - thd->main_security_ctx.host_or_ip, - thd->main_security_ctx.user, - thd->main_security_ctx.priv_user, - passwd_len ? "yes": "no", - thd->main_security_ctx.master_access, - (thd->db ? thd->db : "*none*"))); - - if (check_count) - { - VOID(pthread_mutex_lock(&LOCK_thread_count)); - bool count_ok= thread_count <= max_connections + delayed_insert_threads - || (thd->main_security_ctx.master_access & SUPER_ACL); - VOID(pthread_mutex_unlock(&LOCK_thread_count)); - if (!count_ok) - { // too many connections - net_send_error(thd, ER_CON_COUNT_ERROR); - DBUG_RETURN(-1); - } - } - - /* - Log the command before authentication checks, so that the user can - check the log for the tried login tried and also to detect - break-in attempts. - */ - general_log_print(thd, command, - (thd->main_security_ctx.priv_user == - thd->main_security_ctx.user ? - (char*) "%s@%s on %s" : - (char*) "%s@%s as anonymous on %s"), - thd->main_security_ctx.user, - thd->main_security_ctx.host_or_ip, - db ? db : (char*) ""); - - /* - This is the default access rights for the current database. It's - set to 0 here because we don't have an active database yet (and we - may not have an active database to set. - */ - thd->main_security_ctx.db_access=0; - - /* Don't allow user to connect if he has done too many queries */ - if ((ur.questions || ur.updates || ur.conn_per_hour || ur.user_conn || - max_user_connections) && - get_or_create_user_conn(thd, - (opt_old_style_user_limits ? thd->main_security_ctx.user : - thd->main_security_ctx.priv_user), - (opt_old_style_user_limits ? thd->main_security_ctx.host_or_ip : - thd->main_security_ctx.priv_host), - &ur)) - DBUG_RETURN(-1); - if (thd->user_connect && - (thd->user_connect->user_resources.conn_per_hour || - thd->user_connect->user_resources.user_conn || - max_user_connections) && - check_for_max_user_connections(thd, thd->user_connect)) - DBUG_RETURN(-1); - - /* Change database if necessary */ - if (db && db[0]) - { - if (mysql_change_db(thd, db, FALSE)) - { - /* Send error to the client */ - net_send_error(thd); - if (thd->user_connect) - decrease_user_connections(thd->user_connect); - DBUG_RETURN(-1); - } - } - send_ok(thd); - thd->password= test(passwd_len); // remember for error messages - /* Ready to handle queries */ - DBUG_RETURN(0); - } - } - else if (res == 2) // client gave short hash, server has long hash - { - net_printf_error(thd, ER_NOT_SUPPORTED_AUTH_MODE); - general_log_print(thd, COM_CONNECT, ER(ER_NOT_SUPPORTED_AUTH_MODE)); - DBUG_RETURN(-1); - } - net_printf_error(thd, ER_ACCESS_DENIED_ERROR, - thd->main_security_ctx.user, - thd->main_security_ctx.host_or_ip, - passwd_len ? ER(ER_YES) : ER(ER_NO)); - general_log_print(thd, COM_CONNECT, ER(ER_ACCESS_DENIED_ERROR), - thd->main_security_ctx.user, - thd->main_security_ctx.host_or_ip, - passwd_len ? ER(ER_YES) : ER(ER_NO)); - DBUG_RETURN(-1); -#endif /* NO_EMBEDDED_ACCESS_CHECKS */ -} - -/* - Check for maximum allowable user connections, if the mysqld server is - started with corresponding variable that is greater then 0. -*/ - -extern "C" byte *get_key_conn(user_conn *buff, uint *length, - my_bool not_used __attribute__((unused))) -{ - *length=buff->len; - return (byte*) buff->user; -} - -extern "C" void free_user(struct user_conn *uc) -{ - my_free((char*) uc,MYF(0)); -} - -void init_max_user_conn(void) -{ -#ifndef NO_EMBEDDED_ACCESS_CHECKS - (void) hash_init(&hash_user_connections,system_charset_info,max_connections, - 0,0, - (hash_get_key) get_key_conn, (hash_free_key) free_user, - 0); -#endif -} - - -/* - check if user has already too many connections - - SYNOPSIS - check_for_max_user_connections() - thd Thread handle - uc User connect object - - NOTES - If check fails, we decrease user connection count, which means one - shouldn't call decrease_user_connections() after this function. - - RETURN - 0 ok - 1 error -*/ - -#ifndef NO_EMBEDDED_ACCESS_CHECKS - -static int check_for_max_user_connections(THD *thd, USER_CONN *uc) -{ - int error=0; - DBUG_ENTER("check_for_max_user_connections"); - - (void) pthread_mutex_lock(&LOCK_user_conn); - if (max_user_connections && !uc->user_resources.user_conn && - max_user_connections < (uint) uc->connections) - { - net_printf_error(thd, ER_TOO_MANY_USER_CONNECTIONS, uc->user); - error=1; - goto end; - } - time_out_user_resource_limits(thd, uc); - if (uc->user_resources.user_conn && - uc->user_resources.user_conn < uc->connections) - { - net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, - "max_user_connections", - (long) uc->user_resources.user_conn); - error= 1; - goto end; - } - if (uc->user_resources.conn_per_hour && - uc->user_resources.conn_per_hour <= uc->conn_per_hour) - { - net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, - "max_connections_per_hour", - (long) uc->user_resources.conn_per_hour); - error=1; - goto end; - } - uc->conn_per_hour++; - - end: - if (error) - uc->connections--; // no need for decrease_user_connections() here - (void) pthread_mutex_unlock(&LOCK_user_conn); - DBUG_RETURN(error); -} - -/* - Decrease user connection count - - SYNOPSIS - decrease_user_connections() - uc User connection object - - NOTES - If there is a n user connection object for a connection - (which only happens if 'max_user_connections' is defined or - if someone has created a resource grant for a user), then - the connection count is always incremented on connect. - - The user connect object is not freed if some users has - 'max connections per hour' defined as we need to be able to hold - count over the lifetime of the connection. -*/ - -static void decrease_user_connections(USER_CONN *uc) -{ - DBUG_ENTER("decrease_user_connections"); - (void) pthread_mutex_lock(&LOCK_user_conn); - DBUG_ASSERT(uc->connections); - if (!--uc->connections && !mqh_used) - { - /* Last connection for user; Delete it */ - (void) hash_delete(&hash_user_connections,(byte*) uc); - } - (void) pthread_mutex_unlock(&LOCK_user_conn); - DBUG_VOID_RETURN; -} - -#endif /* NO_EMBEDDED_ACCESS_CHECKS */ - - -void free_max_user_conn(void) -{ -#ifndef NO_EMBEDDED_ACCESS_CHECKS - hash_free(&hash_user_connections); -#endif /* NO_EMBEDDED_ACCESS_CHECKS */ -} - - /* Mark all commands that somehow changes a table @@ -701,402 +258,6 @@ bool is_update_query(enum enum_sql_command command) return (sql_command_flags[command] & CF_CHANGES_DATA) != 0; } -/* - Reset per-hour user resource limits when it has been more than - an hour since they were last checked - - SYNOPSIS: - time_out_user_resource_limits() - thd Thread handler - uc User connection details - - NOTE: - This assumes that the LOCK_user_conn mutex has been acquired, so it is - safe to test and modify members of the USER_CONN structure. -*/ - -#ifndef NO_EMBEDDED_ACCESS_CHECKS - -static void time_out_user_resource_limits(THD *thd, USER_CONN *uc) -{ - time_t check_time = thd->start_time ? thd->start_time : time(NULL); - DBUG_ENTER("time_out_user_resource_limits"); - - /* If more than a hour since last check, reset resource checking */ - if (check_time - uc->intime >= 3600) - { - uc->questions=1; - uc->updates=0; - uc->conn_per_hour=0; - uc->intime=check_time; - } - - DBUG_VOID_RETURN; -} - -/* - Check if maximum queries per hour limit has been reached - returns 0 if OK. -*/ - -static bool check_mqh(THD *thd, uint check_command) -{ - bool error= 0; - USER_CONN *uc=thd->user_connect; - DBUG_ENTER("check_mqh"); - DBUG_ASSERT(uc != 0); - - (void) pthread_mutex_lock(&LOCK_user_conn); - - time_out_user_resource_limits(thd, uc); - - /* Check that we have not done too many questions / hour */ - if (uc->user_resources.questions && - uc->questions++ >= uc->user_resources.questions) - { - net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, "max_questions", - (long) uc->user_resources.questions); - error=1; - goto end; - } - if (check_command < (uint) SQLCOM_END) - { - /* Check that we have not done too many updates / hour */ - if (uc->user_resources.updates && - (sql_command_flags[check_command] & CF_CHANGES_DATA) && - uc->updates++ >= uc->user_resources.updates) - { - net_printf_error(thd, ER_USER_LIMIT_REACHED, uc->user, "max_updates", - (long) uc->user_resources.updates); - error=1; - goto end; - } - } -end: - (void) pthread_mutex_unlock(&LOCK_user_conn); - DBUG_RETURN(error); -} - -#endif /* NO_EMBEDDED_ACCESS_CHECKS */ - - -static void reset_mqh(LEX_USER *lu, bool get_them= 0) -{ -#ifndef NO_EMBEDDED_ACCESS_CHECKS - (void) pthread_mutex_lock(&LOCK_user_conn); - if (lu) // for GRANT - { - USER_CONN *uc; - uint temp_len=lu->user.length+lu->host.length+2; - char temp_user[USER_HOST_BUFF_SIZE]; - - memcpy(temp_user,lu->user.str,lu->user.length); - memcpy(temp_user+lu->user.length+1,lu->host.str,lu->host.length); - temp_user[lu->user.length]='\0'; temp_user[temp_len-1]=0; - if ((uc = (struct user_conn *) hash_search(&hash_user_connections, - (byte*) temp_user, temp_len))) - { - uc->questions=0; - get_mqh(temp_user,&temp_user[lu->user.length+1],uc); - uc->updates=0; - uc->conn_per_hour=0; - } - } - else - { - /* for FLUSH PRIVILEGES and FLUSH USER_RESOURCES */ - for (uint idx=0;idx < hash_user_connections.records; idx++) - { - USER_CONN *uc=(struct user_conn *) hash_element(&hash_user_connections, - idx); - if (get_them) - get_mqh(uc->user,uc->host,uc); - uc->questions=0; - uc->updates=0; - uc->conn_per_hour=0; - } - } - (void) pthread_mutex_unlock(&LOCK_user_conn); -#endif /* NO_EMBEDDED_ACCESS_CHECKS */ -} - -void thd_init_client_charset(THD *thd, uint cs_number) -{ - /* - Use server character set and collation if - - opt_character_set_client_handshake is not set - - client has not specified a character set - - client character set is the same as the servers - - client character set doesn't exists in server - */ - if (!opt_character_set_client_handshake || - !(thd->variables.character_set_client= get_charset(cs_number, MYF(0))) || - !my_strcasecmp(&my_charset_latin1, - global_system_variables.character_set_client->name, - thd->variables.character_set_client->name)) - { - thd->variables.character_set_client= - global_system_variables.character_set_client; - thd->variables.collation_connection= - global_system_variables.collation_connection; - thd->variables.character_set_results= - global_system_variables.character_set_results; - } - else - { - thd->variables.character_set_results= - thd->variables.collation_connection= - thd->variables.character_set_client; - } -} - - -/* - Perform handshake, authorize client and update thd ACL variables. - SYNOPSIS - check_connection() - thd thread handle - - RETURN - 0 success, OK is sent to user, thd is updated. - -1 error, which is sent to user - > 0 error code (not sent to user) -*/ - -#ifndef EMBEDDED_LIBRARY -static int check_connection(THD *thd) -{ - uint connect_errors= 0; - NET *net= &thd->net; - ulong pkt_len= 0; - char *end; - - DBUG_PRINT("info", - ("New connection received on %s", vio_description(net->vio))); -#ifdef SIGNAL_WITH_VIO_CLOSE - thd->set_active_vio(net->vio); -#endif - - if (!thd->main_security_ctx.host) // If TCP/IP connection - { - char ip[30]; - - if (vio_peer_addr(net->vio, ip, &thd->peer_port)) - return (ER_BAD_HOST_ERROR); - if (!(thd->main_security_ctx.ip= my_strdup(ip,MYF(0)))) - return (ER_OUT_OF_RESOURCES); - thd->main_security_ctx.host_or_ip= thd->main_security_ctx.ip; - vio_in_addr(net->vio,&thd->remote.sin_addr); - if (!(specialflag & SPECIAL_NO_RESOLVE)) - { - vio_in_addr(net->vio,&thd->remote.sin_addr); - thd->main_security_ctx.host= - ip_to_hostname(&thd->remote.sin_addr, &connect_errors); - /* Cut very long hostnames to avoid possible overflows */ - if (thd->main_security_ctx.host) - { - if (thd->main_security_ctx.host != my_localhost) - thd->main_security_ctx.host[min(strlen(thd->main_security_ctx.host), - HOSTNAME_LENGTH)]= 0; - thd->main_security_ctx.host_or_ip= thd->main_security_ctx.host; - } - if (connect_errors > max_connect_errors) - return(ER_HOST_IS_BLOCKED); - } - DBUG_PRINT("info",("Host: %s ip: %s", - (thd->main_security_ctx.host ? - thd->main_security_ctx.host : "unknown host"), - (thd->main_security_ctx.ip ? - thd->main_security_ctx.ip : "unknown ip"))); - if (acl_check_host(thd->main_security_ctx.host, thd->main_security_ctx.ip)) - return(ER_HOST_NOT_PRIVILEGED); - } - else /* Hostname given means that the connection was on a socket */ - { - DBUG_PRINT("info",("Host: %s", thd->main_security_ctx.host)); - thd->main_security_ctx.host_or_ip= thd->main_security_ctx.host; - thd->main_security_ctx.ip= 0; - /* Reset sin_addr */ - bzero((char*) &thd->remote, sizeof(thd->remote)); - } - vio_keepalive(net->vio, TRUE); - { - /* buff[] needs to big enough to hold the server_version variable */ - char buff[SERVER_VERSION_LENGTH + SCRAMBLE_LENGTH + 64]; - ulong client_flags = (CLIENT_LONG_FLAG | CLIENT_CONNECT_WITH_DB | - CLIENT_PROTOCOL_41 | CLIENT_SECURE_CONNECTION); - - if (opt_using_transactions) - client_flags|=CLIENT_TRANSACTIONS; -#ifdef HAVE_COMPRESS - client_flags |= CLIENT_COMPRESS; -#endif /* HAVE_COMPRESS */ -#ifdef HAVE_OPENSSL - if (ssl_acceptor_fd) - client_flags |= CLIENT_SSL; /* Wow, SSL is available! */ -#endif /* HAVE_OPENSSL */ - - end= strnmov(buff, server_version, SERVER_VERSION_LENGTH) + 1; - int4store((uchar*) end, thd->thread_id); - end+= 4; - /* - So as check_connection is the only entry point to authorization - procedure, scramble is set here. This gives us new scramble for - each handshake. - */ - create_random_string(thd->scramble, SCRAMBLE_LENGTH, &thd->rand); - /* - Old clients does not understand long scrambles, but can ignore packet - tail: that's why first part of the scramble is placed here, and second - part at the end of packet. - */ - end= strmake(end, thd->scramble, SCRAMBLE_LENGTH_323) + 1; - - int2store(end, client_flags); - /* write server characteristics: up to 16 bytes allowed */ - end[2]=(char) default_charset_info->number; - int2store(end+3, thd->server_status); - bzero(end+5, 13); - end+= 18; - /* write scramble tail */ - end= strmake(end, thd->scramble + SCRAMBLE_LENGTH_323, - SCRAMBLE_LENGTH - SCRAMBLE_LENGTH_323) + 1; - - /* At this point we write connection message and read reply */ - if (net_write_command(net, (uchar) protocol_version, "", 0, buff, - (uint) (end-buff)) || - (pkt_len= my_net_read(net)) == packet_error || - pkt_len < MIN_HANDSHAKE_SIZE) - { - inc_host_errors(&thd->remote.sin_addr); - return(ER_HANDSHAKE_ERROR); - } - } -#ifdef _CUSTOMCONFIG_ -#include "_cust_sql_parse.h" -#endif - if (connect_errors) - reset_host_errors(&thd->remote.sin_addr); - if (thd->packet.alloc(thd->variables.net_buffer_length)) - return(ER_OUT_OF_RESOURCES); - - thd->client_capabilities=uint2korr(net->read_pos); - if (thd->client_capabilities & CLIENT_PROTOCOL_41) - { - thd->client_capabilities|= ((ulong) uint2korr(net->read_pos+2)) << 16; - thd->max_client_packet_length= uint4korr(net->read_pos+4); - DBUG_PRINT("info", ("client_character_set: %d", (uint) net->read_pos[8])); - thd_init_client_charset(thd, (uint) net->read_pos[8]); - thd->update_charset(); - end= (char*) net->read_pos+32; - } - else - { - thd->max_client_packet_length= uint3korr(net->read_pos+2); - end= (char*) net->read_pos+5; - } - - if (thd->client_capabilities & CLIENT_IGNORE_SPACE) - thd->variables.sql_mode|= MODE_IGNORE_SPACE; -#ifdef HAVE_OPENSSL - DBUG_PRINT("info", ("client capabilities: %lu", thd->client_capabilities)); - if (thd->client_capabilities & CLIENT_SSL) - { - /* Do the SSL layering. */ - if (!ssl_acceptor_fd) - { - inc_host_errors(&thd->remote.sin_addr); - return(ER_HANDSHAKE_ERROR); - } - DBUG_PRINT("info", ("IO layer change in progress...")); - if (sslaccept(ssl_acceptor_fd, net->vio, net->read_timeout)) - { - DBUG_PRINT("error", ("Failed to accept new SSL connection")); - inc_host_errors(&thd->remote.sin_addr); - return(ER_HANDSHAKE_ERROR); - } - DBUG_PRINT("info", ("Reading user information over SSL layer")); - if ((pkt_len= my_net_read(net)) == packet_error || - pkt_len < NORMAL_HANDSHAKE_SIZE) - { - DBUG_PRINT("error", ("Failed to read user information (pkt_len= %lu)", - pkt_len)); - inc_host_errors(&thd->remote.sin_addr); - return(ER_HANDSHAKE_ERROR); - } - } -#endif - - if (end >= (char*) net->read_pos+ pkt_len +2) - { - inc_host_errors(&thd->remote.sin_addr); - return(ER_HANDSHAKE_ERROR); - } - - if (thd->client_capabilities & CLIENT_INTERACTIVE) - thd->variables.net_wait_timeout= thd->variables.net_interactive_timeout; - if ((thd->client_capabilities & CLIENT_TRANSACTIONS) && - opt_using_transactions) - net->return_status= &thd->server_status; - - char *user= end; - char *passwd= strend(user)+1; - uint user_len= passwd - user - 1; - char *db= passwd; - char db_buff[NAME_LEN + 1]; // buffer to store db in utf8 - char user_buff[USERNAME_LENGTH + 1]; // buffer to store user in utf8 - uint dummy_errors; - - /* - Old clients send null-terminated string as password; new clients send - the size (1 byte) + string (not null-terminated). Hence in case of empty - password both send '\0'. - - This strlen() can't be easily deleted without changing protocol. - */ - uint passwd_len= thd->client_capabilities & CLIENT_SECURE_CONNECTION ? - *passwd++ : strlen(passwd); - db= thd->client_capabilities & CLIENT_CONNECT_WITH_DB ? - db + passwd_len + 1 : 0; - /* strlen() can't be easily deleted without changing protocol */ - uint db_len= db ? strlen(db) : 0; - - if (passwd + passwd_len + db_len > (char *)net->read_pos + pkt_len) - { - inc_host_errors(&thd->remote.sin_addr); - return ER_HANDSHAKE_ERROR; - } - - /* Since 4.1 all database names are stored in utf8 */ - if (db) - { - db_buff[copy_and_convert(db_buff, sizeof(db_buff)-1, - system_charset_info, - db, db_len, - thd->charset(), &dummy_errors)]= 0; - db= db_buff; - } - - user_buff[user_len= copy_and_convert(user_buff, sizeof(user_buff)-1, - system_charset_info, user, user_len, - thd->charset(), &dummy_errors)]= '\0'; - user= user_buff; - - /* If username starts and ends in "'", chop them off */ - if (user_len > 1 && user[0] == '\'' && user[user_len - 1] == '\'') - { - user[user_len-1]= 0; - user++; - user_len-= 2; - } - - if (thd->main_security_ctx.user) - x_free(thd->main_security_ctx.user); - if (!(thd->main_security_ctx.user= my_strdup(user, MYF(0)))) - return (ER_OUT_OF_RESOURCES); - return check_user(thd, COM_CONNECT, passwd, passwd_len, db, TRUE); -} - void execute_init_command(THD *thd, sys_var_str *init_command_var, rw_lock_t *var_mutex) @@ -1129,153 +290,6 @@ void execute_init_command(THD *thd, sys_var_str *init_command_var, } -pthread_handler_t handle_one_connection(void *arg) -{ - THD *thd=(THD*) arg; - uint launch_time = - (uint) ((thd->thr_create_time = time(NULL)) - thd->connect_time); - if (launch_time >= slow_launch_time) - statistic_increment(slow_launch_threads,&LOCK_status ); - - pthread_detach_this_thread(); - -#if !defined( __WIN__) // Win32 calls this in pthread_create - /* The following calls needs to be done before we call DBUG_ macros */ - if (!(test_flags & TEST_NO_THREADS) & my_thread_init()) - { - close_connection(thd, ER_OUT_OF_RESOURCES, 1); - statistic_increment(aborted_connects,&LOCK_status); - end_thread(thd,0); - return 0; - } -#endif - - /* - handle_one_connection() is the only way a thread would start - and would always be on top of the stack, therefore, the thread - stack always starts at the address of the first local variable - of handle_one_connection, which is thd. We need to know the - start of the stack so that we could check for stack overruns. - */ - DBUG_PRINT("info", ("handle_one_connection called by thread %lu\n", - thd->thread_id)); - /* now that we've called my_thread_init(), it is safe to call DBUG_* */ - -#if defined(__WIN__) - init_signals(); -#elif !defined(__NETWARE__) - sigset_t set; - VOID(sigemptyset(&set)); // Get mask in use - VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals)); -#endif - thd->thread_stack= (char*) &thd; - if (thd->store_globals()) - { - close_connection(thd, ER_OUT_OF_RESOURCES, 1); - statistic_increment(aborted_connects,&LOCK_status); - end_thread(thd,0); - return 0; - } - - do - { - int error; - NET *net= &thd->net; - Security_context *sctx= thd->security_ctx; - net->no_send_error= 0; - - /* Use "connect_timeout" value during connection phase */ - net_set_read_timeout(net, connect_timeout); - net_set_write_timeout(net, connect_timeout); - - if ((error=check_connection(thd))) - { // Wrong permissions - if (error > 0) - net_printf_error(thd, error, sctx->host_or_ip); -#ifdef __NT__ - if (vio_type(net->vio) == VIO_TYPE_NAMEDPIPE) - my_sleep(1000); /* must wait after eof() */ -#endif - statistic_increment(aborted_connects,&LOCK_status); - goto end_thread; - } -#ifdef __NETWARE__ - netware_reg_user(sctx->ip, sctx->user, "MySQL"); -#endif - if (thd->variables.max_join_size == HA_POS_ERROR) - thd->options |= OPTION_BIG_SELECTS; - if (thd->client_capabilities & CLIENT_COMPRESS) - net->compress=1; // Use compression - - thd->version= refresh_version; - thd->proc_info= 0; - thd->command= COM_SLEEP; - thd->set_time(); - thd->init_for_queries(); - - if (sys_init_connect.value_length && !(sctx->master_access & SUPER_ACL)) - { - execute_init_command(thd, &sys_init_connect, &LOCK_sys_init_connect); - if (thd->query_error) - { - thd->killed= THD::KILL_CONNECTION; - sql_print_warning(ER(ER_NEW_ABORTING_CONNECTION), - thd->thread_id,(thd->db ? thd->db : "unconnected"), - sctx->user ? sctx->user : "unauthenticated", - sctx->host_or_ip, "init_connect command failed"); - sql_print_warning("%s", net->last_error); - } - thd->proc_info=0; - thd->set_time(); - thd->init_for_queries(); - } - - /* Connect completed, set read/write timeouts back to tdefault */ - net_set_read_timeout(net, thd->variables.net_read_timeout); - net_set_write_timeout(net, thd->variables.net_write_timeout); - - while (!net->error && net->vio != 0 && - !(thd->killed == THD::KILL_CONNECTION)) - { - net->no_send_error= 0; - if (do_command(thd)) - break; - } - if (thd->user_connect) - decrease_user_connections(thd->user_connect); - if (net->error && net->vio != 0 && net->report_error) - { - if (!thd->killed && thd->variables.log_warnings > 1) - sql_print_warning(ER(ER_NEW_ABORTING_CONNECTION), - thd->thread_id,(thd->db ? thd->db : "unconnected"), - sctx->user ? sctx->user : "unauthenticated", - sctx->host_or_ip, - (net->last_errno ? ER(net->last_errno) : - ER(ER_UNKNOWN_ERROR))); - net_send_error(thd, net->last_errno, NullS); - statistic_increment(aborted_threads,&LOCK_status); - } - else if (thd->killed) - { - statistic_increment(aborted_threads,&LOCK_status); - } - -end_thread: - close_connection(thd, 0, 1); - end_thread(thd,1); - /* - If end_thread returns, we are either running with --one-thread - or this thread has been schedule to handle the next query - */ - thd= current_thd; - thd->thread_stack= (char*) &thd; - } while (!(test_flags & TEST_NO_THREADS)); - /* The following is only executed if we are not using --one-thread */ - return(0); /* purecov: deadcode */ -} - -#endif /* EMBEDDED_LIBRARY */ - /* Execute commands from bootstrap_file. Used when creating the initial grant tables @@ -1302,11 +316,6 @@ pthread_handler_t handle_bootstrap(void *arg) #ifndef EMBEDDED_LIBRARY pthread_detach_this_thread(); thd->thread_stack= (char*) &thd; -#if !defined(__WIN__) && !defined(__NETWARE__) - sigset_t set; - VOID(sigemptyset(&set)); // Get mask in use - VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals)); -#endif #endif /* EMBEDDED_LIBRARY */ if (thd->variables.max_join_size == HA_POS_ERROR) @@ -2085,7 +1094,6 @@ bool dispatch_command(enum enum_server_command command, THD *thd, */ enum mysql_enum_shutdown_level level= (enum mysql_enum_shutdown_level) (uchar) packet[0]; - DBUG_PRINT("quit",("Got shutdown command for level %u", level)); if (level == SHUTDOWN_DEFAULT) level= SHUTDOWN_WAIT_ALL_BUFFERS; // soon default will be configurable else if (level != SHUTDOWN_WAIT_ALL_BUFFERS) @@ -4230,7 +3238,7 @@ end_with_restore_list: { if (!(user= get_current_user(thd, tmp_user))) goto error; - reset_mqh(user); + reset_mqh(user, 0); } } } @@ -6580,6 +5588,7 @@ bool st_select_lex::init_nested_join(THD *thd) join_list->push_front(ptr); ptr->embedding= embedding; ptr->join_list= join_list; + ptr->alias= (char*) "(nested_join)"; embedding= ptr; join_list= &nested_join->join_list; join_list->empty(); @@ -6664,6 +5673,7 @@ TABLE_LIST *st_select_lex::nest_last_join(THD *thd) ptr->embedding= embedding; ptr->join_list= join_list; + ptr->alias= (char*) "(nest_last_join)"; embedded_list= &nested_join->join_list; embedded_list->empty(); @@ -7158,7 +6168,7 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables, } #endif if (options & REFRESH_USER_RESOURCES) - reset_mqh((LEX_USER *) NULL); + reset_mqh((LEX_USER *) NULL, 0); /* purecov: inspected */ *write_to_binlog= tmp_write_to_binlog; return result; } diff --git a/sql/sql_parse.cc.rej b/sql/sql_parse.cc.rej deleted file mode 100644 index 6e2bd03867d..00000000000 --- a/sql/sql_parse.cc.rej +++ /dev/null @@ -1,166 +0,0 @@ -*************** -*** 67,109 **** - static void decrease_user_connections(USER_CONN *uc); - #endif /* NO_EMBEDDED_ACCESS_CHECKS */ - static bool check_multi_update_lock(THD *thd); -- static void remove_escape(char *name); - static bool execute_sqlcom_select(THD *thd, TABLE_LIST *all_tables); - - const char *any_db="*any*"; // Special symbol for check_access - -! LEX_STRING command_name[]={ -! (char *)STRING_WITH_LEN("Sleep"), -! (char *)STRING_WITH_LEN("Quit"), -! (char *)STRING_WITH_LEN("Init DB"), -! (char *)STRING_WITH_LEN("Query"), -! (char *)STRING_WITH_LEN("Field List"), -! (char *)STRING_WITH_LEN("Create DB"), -! (char *)STRING_WITH_LEN("Drop DB"), -! (char *)STRING_WITH_LEN("Refresh"), -! (char *)STRING_WITH_LEN("Shutdown"), -! (char *)STRING_WITH_LEN("Statistics"), -! (char *)STRING_WITH_LEN("Processlist"), -! (char *)STRING_WITH_LEN("Connect"), -! (char *)STRING_WITH_LEN("Kill"), -! (char *)STRING_WITH_LEN("Debug"), -! (char *)STRING_WITH_LEN("Ping"), -! (char *)STRING_WITH_LEN("Time"), -! (char *)STRING_WITH_LEN("Delayed insert"), -! (char *)STRING_WITH_LEN("Change user"), -! (char *)STRING_WITH_LEN("Binlog Dump"), -! (char *)STRING_WITH_LEN("Table Dump"), -! (char *)STRING_WITH_LEN("Connect Out"), -! (char *)STRING_WITH_LEN("Register Slave"), -! (char *)STRING_WITH_LEN("Prepare"), -! (char *)STRING_WITH_LEN("Execute"), -! (char *)STRING_WITH_LEN("Long Data"), -! (char *)STRING_WITH_LEN("Close stmt"), -! (char *)STRING_WITH_LEN("Reset stmt"), -! (char *)STRING_WITH_LEN("Set option"), -! (char *)STRING_WITH_LEN("Fetch"), -! (char *)STRING_WITH_LEN("Daemon"), -! (char *)STRING_WITH_LEN("Error") // Last command number - }; - - const char *xa_state_names[]={ ---- 67,108 ---- - static void decrease_user_connections(USER_CONN *uc); - #endif /* NO_EMBEDDED_ACCESS_CHECKS */ - static bool check_multi_update_lock(THD *thd); - static bool execute_sqlcom_select(THD *thd, TABLE_LIST *all_tables); - - const char *any_db="*any*"; // Special symbol for check_access - -! const LEX_STRING command_name[]={ -! C_STRING_WITH_LEN("Sleep"), -! C_STRING_WITH_LEN("Quit"), -! C_STRING_WITH_LEN("Init DB"), -! C_STRING_WITH_LEN("Query"), -! C_STRING_WITH_LEN("Field List"), -! C_STRING_WITH_LEN("Create DB"), -! C_STRING_WITH_LEN("Drop DB"), -! C_STRING_WITH_LEN("Refresh"), -! C_STRING_WITH_LEN("Shutdown"), -! C_STRING_WITH_LEN("Statistics"), -! C_STRING_WITH_LEN("Processlist"), -! C_STRING_WITH_LEN("Connect"), -! C_STRING_WITH_LEN("Kill"), -! C_STRING_WITH_LEN("Debug"), -! C_STRING_WITH_LEN("Ping"), -! C_STRING_WITH_LEN("Time"), -! C_STRING_WITH_LEN("Delayed insert"), -! C_STRING_WITH_LEN("Change user"), -! C_STRING_WITH_LEN("Binlog Dump"), -! C_STRING_WITH_LEN("Table Dump"), -! C_STRING_WITH_LEN("Connect Out"), -! C_STRING_WITH_LEN("Register Slave"), -! C_STRING_WITH_LEN("Prepare"), -! C_STRING_WITH_LEN("Execute"), -! C_STRING_WITH_LEN("Long Data"), -! C_STRING_WITH_LEN("Close stmt"), -! C_STRING_WITH_LEN("Reset stmt"), -! C_STRING_WITH_LEN("Set option"), -! C_STRING_WITH_LEN("Fetch"), -! C_STRING_WITH_LEN("Daemon"), -! C_STRING_WITH_LEN("Error") // Last command number - }; - - const char *xa_state_names[]={ -*************** -*** 1738,1744 **** - password. New clients send the size (1 byte) + string (not null - terminated, so also '\0' for empty string). - */ -! char db_buff[NAME_LEN+1]; // buffer to store db in utf8 - char *db= passwd; - uint passwd_len= thd->client_capabilities & CLIENT_SECURE_CONNECTION ? - *passwd++ : strlen(passwd); ---- 1736,1742 ---- - password. New clients send the size (1 byte) + string (not null - terminated, so also '\0' for empty string). - */ -! char db_buff[NAME_LEN+1]; // buffer to store db in utf8 - char *db= passwd; - uint passwd_len= thd->client_capabilities & CLIENT_SECURE_CONNECTION ? - *passwd++ : strlen(passwd); -*************** -*** 2315,2321 **** - DBUG_RETURN(1); - } - db= lex->select_lex.db; -- remove_escape(db); // Fix escaped '_' - if (check_db_name(db)) - { - my_error(ER_WRONG_DB_NAME, MYF(0), db); ---- 2312,2317 ---- - DBUG_RETURN(1); - } - db= lex->select_lex.db; - if (check_db_name(db)) - { - my_error(ER_WRONG_DB_NAME, MYF(0), db); -*************** -*** 6310,6345 **** - } - - -- /* Fix escaping of _, % and \ in database and table names (for ODBC) */ -- -- static void remove_escape(char *name) -- { -- if (!*name) // For empty DB names -- return; -- char *to; -- #ifdef USE_MB -- char *strend=name+(uint) strlen(name); -- #endif -- for (to=name; *name ; name++) -- { -- #ifdef USE_MB -- int l; -- if (use_mb(system_charset_info) && -- (l = my_ismbchar(system_charset_info, name, strend))) -- { -- while (l--) -- *to++ = *name++; -- name--; -- continue; -- } -- #endif -- if (*name == '\\' && name[1]) -- name++; // Skip '\\' -- *to++= *name; -- } -- *to=0; -- } -- - /**************************************************************************** - ** save order by and tables in own lists - ****************************************************************************/ ---- 6296,6301 ---- - } - - - /**************************************************************************** - ** save order by and tables in own lists - ****************************************************************************/ diff --git a/sql/sql_partition.cc b/sql/sql_partition.cc index 923e851c0ff..dbac53ed5f6 100644 --- a/sql/sql_partition.cc +++ b/sql/sql_partition.cc @@ -6731,7 +6731,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info, } } else - DBUG_ASSERT(0); + assert(0); /* Find minimum: Do special handling if the interval has left bound in form diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc index a75b98997eb..1acc08e095d 100644 --- a/sql/sql_prepare.cc +++ b/sql/sql_prepare.cc @@ -2054,6 +2054,7 @@ void mysql_sql_stmt_prepare(THD *thd) uint query_len; DBUG_ENTER("mysql_sql_stmt_prepare"); DBUG_ASSERT(thd->protocol == &thd->protocol_simple); + LINT_INIT(query_len); if ((stmt= (Prepared_statement*) thd->stmt_map.find_by_name(name))) { @@ -2242,7 +2243,7 @@ void mysql_stmt_execute(THD *thd, char *packet_arg, uint packet_length) { uchar *packet= (uchar*)packet_arg; // GCC 4.0.1 workaround ulong stmt_id= uint4korr(packet); - ulong flags= (ulong) ((uchar) packet[4]); + ulong flags= (ulong) packet[4]; /* Query text for binary, general or slow log, if any of them is open */ String expanded_query; #ifndef EMBEDDED_LIBRARY diff --git a/sql/sql_select.cc b/sql/sql_select.cc index a921cd43048..75b3f5ae981 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -8264,7 +8264,7 @@ static uint build_bitmap_for_nested_joins(List<TABLE_LIST> *join_list, */ if (nested_join->join_list.elements != 1) { - nested_join->nj_map= 1 << first_unused++; + nested_join->nj_map= (nested_join_map) 1 << first_unused++; first_unused= build_bitmap_for_nested_joins(&nested_join->join_list, first_unused); } @@ -9166,7 +9166,8 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields, uint hidden_null_count, hidden_null_pack_length, hidden_field_count; uint blob_count,group_null_items, string_count; uint temp_pool_slot=MY_BIT_NONE; - ulong reclength, string_total_length, fieldnr= 0; + uint fieldnr= 0; + ulong reclength, string_total_length; bool using_unique_constraint= 0; bool use_packed_rows= 0; bool not_all_columns= !(select_options & TMP_TABLE_ALL_COLUMNS); @@ -10332,7 +10333,6 @@ do_select(JOIN *join,List<Item> *fields,TABLE *table,Procedure *procedure) else { DBUG_ASSERT(join->tables); - DBUG_ASSERT(join_tab); error= sub_select(join,join_tab,0); if (error == NESTED_LOOP_OK || error == NESTED_LOOP_NO_MORE_ROWS) error= sub_select(join,join_tab,1); @@ -15196,7 +15196,8 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order, Item_float *filtered; float f; if (examined_rows) - f= 100.0 * join->best_positions[i].records_read / examined_rows; + f= (float) (100.0 * join->best_positions[i].records_read / + examined_rows); else f= 0.0; item_list.push_back((filtered= new Item_float(f))); diff --git a/sql/sql_show.cc b/sql/sql_show.cc index 99fb0fd4236..250d9d917eb 100644 --- a/sql/sql_show.cc +++ b/sql/sql_show.cc @@ -1687,10 +1687,6 @@ void mysqld_list_processes(THD *thd,const char *user, bool verbose) if (mysys_var) pthread_mutex_unlock(&mysys_var->mutex); -#if !defined(DONT_USE_THR_ALARM) && ! defined(SCO) - if (pthread_kill(tmp->real_id,0)) - tmp->proc_info="*** DEAD ***"; // This shouldn't happen -#endif #ifdef EXTRA_DEBUG thd_info->start_time= tmp->time_after_lock; #else @@ -2942,20 +2938,21 @@ static int get_schema_tables_record(THD *thd, struct st_table_list *tables, if (file->stats.create_time) { thd->variables.time_zone->gmt_sec_to_TIME(&time, - file->stats.create_time); + (my_time_t) file->stats.create_time); table->field[14]->store_time(&time, MYSQL_TIMESTAMP_DATETIME); table->field[14]->set_notnull(); } if (file->stats.update_time) { thd->variables.time_zone->gmt_sec_to_TIME(&time, - file->stats.update_time); + (my_time_t) file->stats.update_time); table->field[15]->store_time(&time, MYSQL_TIMESTAMP_DATETIME); table->field[15]->set_notnull(); } if (file->stats.check_time) { - thd->variables.time_zone->gmt_sec_to_TIME(&time, file->stats.check_time); + thd->variables.time_zone->gmt_sec_to_TIME(&time, + (my_time_t) file->stats.check_time); table->field[16]->store_time(&time, MYSQL_TIMESTAMP_DATETIME); table->field[16]->set_notnull(); } diff --git a/sql/sql_table.cc b/sql/sql_table.cc index bbf510a7437..9162e160bff 100644 --- a/sql/sql_table.cc +++ b/sql/sql_table.cc @@ -460,10 +460,10 @@ static bool write_ddl_log_header() global_ddl_log.num_entries); const_var= FN_LEN; int4store(&global_ddl_log.file_entry_buf[DDL_LOG_NAME_LEN_POS], - const_var); + (ulong) const_var); const_var= IO_SIZE; int4store(&global_ddl_log.file_entry_buf[DDL_LOG_IO_SIZE_POS], - const_var); + (ulong) const_var); if (write_ddl_log_file_entry(0UL)) { sql_print_error("Error writing ddl log header"); @@ -3416,16 +3416,11 @@ bool mysql_create_table_internal(THD *thd, { #ifdef FN_DEVCHAR /* check if the table name contains FN_DEVCHAR when defined */ - const char *start= alias; - while (*start != '\0') + if (strchr(alias, FN_DEVCHAR)) { - if (*start == FN_DEVCHAR) - { - my_error(ER_WRONG_TABLE_NAME, MYF(0), alias); - DBUG_RETURN(TRUE); - } - start++; - } + my_error(ER_WRONG_TABLE_NAME, MYF(0), alias); + DBUG_RETURN(TRUE); + } #endif path_length= build_table_filename(path, sizeof(path), db, alias, reg_ext, internal_tmp_table ? FN_IS_TMP : 0); diff --git a/sql/sql_test.cc b/sql/sql_test.cc index 4fc5bde8fdc..9e30cf5878c 100644 --- a/sql/sql_test.cc +++ b/sql/sql_test.cc @@ -73,17 +73,18 @@ void print_cached_tables(void) uint idx,count,unused; TABLE *start_link,*lnk; + /* purecov: begin tested */ VOID(pthread_mutex_lock(&LOCK_open)); - puts("DB Table Version Thread L.thread Open Lock"); + puts("DB Table Version Thread Open Lock"); for (idx=unused=0 ; idx < open_cache.records ; idx++) { TABLE *entry=(TABLE*) hash_element(&open_cache,idx); - printf("%-14.14s %-32s%6ld%8ld%10ld%6d %s\n", - entry->s->db.str, entry->s->table_name.str, entry->s->version, + printf("%-14.14s %-32s%6ld%8ld%6d %s\n", + entry->s->db.str, entry->s->table_name.str, entry->s->version, entry->in_use ? entry->in_use->thread_id : 0L, - entry->in_use ? entry->in_use->dbug_thread_id : 0L, - entry->db_stat ? 1 : 0, entry->in_use ? lock_descriptions[(int)entry->reginfo.lock_type] : "Not in use"); + entry->db_stat ? 1 : 0, + entry->in_use ? lock_descriptions[(int)entry->reginfo.lock_type] : "Not in use"); if (!entry->in_use) unused++; } @@ -110,6 +111,7 @@ void print_cached_tables(void) printf("Error: File hash table is corrupted\n"); fflush(stdout); VOID(pthread_mutex_unlock(&LOCK_open)); + /* purecov: end */ return; } diff --git a/sql/sql_view.cc b/sql/sql_view.cc index 7675c854b81..622f7b99d33 100644 --- a/sql/sql_view.cc +++ b/sql/sql_view.cc @@ -713,7 +713,7 @@ static int mysql_register_view(THD *thd, TABLE_LIST *view, File_parser *parser; path.str= path_buff; - fn_format(path_buff, file.str, dir.str, 0, MY_UNPACK_FILENAME); + fn_format(path_buff, file.str, dir.str, "", MY_UNPACK_FILENAME); path.length= strlen(path_buff); if (!access(path.str, F_OK)) diff --git a/sql/table.cc.rej b/sql/table.cc.rej deleted file mode 100644 index fd728ba9965..00000000000 --- a/sql/table.cc.rej +++ /dev/null @@ -1,17 +0,0 @@ -*************** -*** 2246,2252 **** - - bool check_db_name(char *name) - { -! char *start=name; - /* Used to catch empty names and names with end space */ - bool last_char_is_space= TRUE; - ---- 2257,2263 ---- - - bool check_db_name(char *name) - { -! char *start= name; - /* Used to catch empty names and names with end space */ - bool last_char_is_space= TRUE; - diff --git a/sql/tztime.cc b/sql/tztime.cc index 2cdc863565a..e236ceb11d7 100644 --- a/sql/tztime.cc +++ b/sql/tztime.cc @@ -546,8 +546,8 @@ sec_to_TIME(TIME * tmp, my_time_t t, long offset) int yleap; const uint *ip; - days= t / SECS_PER_DAY; - rem= t % SECS_PER_DAY; + days= (long) (t / SECS_PER_DAY); + rem= (long) (t % SECS_PER_DAY); /* We do this as separate step after dividing t, because this diff --git a/sql/udf_example.def b/sql/udf_example.def index ee107d58e51..7a87147d7b6 100644 --- a/sql/udf_example.def +++ b/sql/udf_example.def @@ -1,5 +1,4 @@ LIBRARY udf_example -DESCRIPTION 'MySQL Sample for UDF' VERSION 1.0 EXPORTS lookup diff --git a/sql/unireg.cc b/sql/unireg.cc index 5faacb02d5f..d90420313a6 100644 --- a/sql/unireg.cc +++ b/sql/unireg.cc @@ -913,7 +913,10 @@ static bool make_empty_rec(THD *thd, File file,enum legacy_db_type table_type, field->interval, field->field_name); if (!regfield) + { + error= 1; goto err; // End of memory + } /* save_in_field() will access regfield->table->in_use */ regfield->init(&table); |