diff options
Diffstat (limited to 'include/mysql')
| -rw-r--r-- | include/mysql/plugin.h | 19 | ||||
| -rw-r--r-- | include/mysql/plugin_audit.h.pp | 11 | ||||
| -rw-r--r-- | include/mysql/plugin_auth.h.pp | 11 | ||||
| -rw-r--r-- | include/mysql/plugin_ftparser.h.pp | 11 | ||||
| -rw-r--r-- | include/mysql/psi/mysql_thread.h | 17 | ||||
| -rw-r--r-- | include/mysql/service_kill_statement.h | 71 | ||||
| -rw-r--r-- | include/mysql/services.h | 1 |
7 files changed, 116 insertions, 25 deletions
diff --git a/include/mysql/plugin.h b/include/mysql/plugin.h index b8e90f764bd..38573180232 100644 --- a/include/mysql/plugin.h +++ b/include/mysql/plugin.h @@ -72,7 +72,7 @@ typedef struct st_mysql_xid MYSQL_XID; #define MYSQL_PLUGIN_INTERFACE_VERSION 0x0103 /* MariaDB plugin interface version */ -#define MARIA_PLUGIN_INTERFACE_VERSION 0x0103 +#define MARIA_PLUGIN_INTERFACE_VERSION 0x0104 /* The allowable types of plugins @@ -626,23 +626,6 @@ void thd_inc_row_count(MYSQL_THD thd); int mysql_tmpfile(const char *prefix); /** - Check the killed state of a connection - - @details - In MySQL support for the KILL statement is cooperative. The KILL - statement only sets a "killed" flag. This function returns the value - of that flag. A thread should check it often, especially inside - time-consuming loops, and gracefully abort the operation if it is - non-zero. - - @param thd user thread connection handle - @retval 0 the connection is active - @retval 1 the connection has been killed -*/ -int thd_killed(const MYSQL_THD thd); - - -/** Return the thread id of a user thread @param thd user thread connection handle diff --git a/include/mysql/plugin_audit.h.pp b/include/mysql/plugin_audit.h.pp index dea2446ac9c..fbd4ec2dd3f 100644 --- a/include/mysql/plugin_audit.h.pp +++ b/include/mysql/plugin_audit.h.pp @@ -82,6 +82,16 @@ const char *set_thd_proc_info(void*, const char * info, const char *func, const char *file, unsigned int line); #include <mysql/service_debug_sync.h> extern void (*debug_sync_C_callback_ptr)(void*, const char *, size_t); +#include <mysql/service_kill_statement.h> +enum thd_kill_levels { + THD_IS_NOT_KILLED=0, + THD_ABORT_SOFTLY=50, + THD_ABORT_ASAP=100, +}; +extern struct kill_statement_service_st { + enum thd_kill_levels (*thd_kill_level_func)(const void*); +} *thd_kill_statement_service; +enum thd_kill_levels thd_kill_level(const void*); struct st_mysql_xid { long formatID; long gtrid_length; @@ -226,7 +236,6 @@ char *thd_security_context(void* thd, char *buffer, unsigned int length, unsigned int max_query_len); void thd_inc_row_count(void* thd); int mysql_tmpfile(const char *prefix); -int thd_killed(const void* thd); unsigned long thd_get_thread_id(const void* thd); void thd_get_xid(const void* thd, MYSQL_XID *xid); void mysql_query_cache_invalidate4(void* thd, diff --git a/include/mysql/plugin_auth.h.pp b/include/mysql/plugin_auth.h.pp index f1213a73bc6..46811825142 100644 --- a/include/mysql/plugin_auth.h.pp +++ b/include/mysql/plugin_auth.h.pp @@ -82,6 +82,16 @@ const char *set_thd_proc_info(void*, const char * info, const char *func, const char *file, unsigned int line); #include <mysql/service_debug_sync.h> extern void (*debug_sync_C_callback_ptr)(void*, const char *, size_t); +#include <mysql/service_kill_statement.h> +enum thd_kill_levels { + THD_IS_NOT_KILLED=0, + THD_ABORT_SOFTLY=50, + THD_ABORT_ASAP=100, +}; +extern struct kill_statement_service_st { + enum thd_kill_levels (*thd_kill_level_func)(const void*); +} *thd_kill_statement_service; +enum thd_kill_levels thd_kill_level(const void*); struct st_mysql_xid { long formatID; long gtrid_length; @@ -226,7 +236,6 @@ char *thd_security_context(void* thd, char *buffer, unsigned int length, unsigned int max_query_len); void thd_inc_row_count(void* thd); int mysql_tmpfile(const char *prefix); -int thd_killed(const void* thd); unsigned long thd_get_thread_id(const void* thd); void thd_get_xid(const void* thd, MYSQL_XID *xid); void mysql_query_cache_invalidate4(void* thd, diff --git a/include/mysql/plugin_ftparser.h.pp b/include/mysql/plugin_ftparser.h.pp index 74b298098dd..49cf7e5b931 100644 --- a/include/mysql/plugin_ftparser.h.pp +++ b/include/mysql/plugin_ftparser.h.pp @@ -82,6 +82,16 @@ const char *set_thd_proc_info(void*, const char * info, const char *func, const char *file, unsigned int line); #include <mysql/service_debug_sync.h> extern void (*debug_sync_C_callback_ptr)(void*, const char *, size_t); +#include <mysql/service_kill_statement.h> +enum thd_kill_levels { + THD_IS_NOT_KILLED=0, + THD_ABORT_SOFTLY=50, + THD_ABORT_ASAP=100, +}; +extern struct kill_statement_service_st { + enum thd_kill_levels (*thd_kill_level_func)(const void*); +} *thd_kill_statement_service; +enum thd_kill_levels thd_kill_level(const void*); struct st_mysql_xid { long formatID; long gtrid_length; @@ -179,7 +189,6 @@ char *thd_security_context(void* thd, char *buffer, unsigned int length, unsigned int max_query_len); void thd_inc_row_count(void* thd); int mysql_tmpfile(const char *prefix); -int thd_killed(const void* thd); unsigned long thd_get_thread_id(const void* thd); void thd_get_xid(const void* thd, MYSQL_XID *xid); void mysql_query_cache_invalidate4(void* thd, diff --git a/include/mysql/psi/mysql_thread.h b/include/mysql/psi/mysql_thread.h index 18b4fde8c5c..7615985ec24 100644 --- a/include/mysql/psi/mysql_thread.h +++ b/include/mysql/psi/mysql_thread.h @@ -477,7 +477,7 @@ typedef struct st_mysql_cond mysql_cond_t; Instrumented cond_wait. @c mysql_cond_wait is a drop-in replacement for @c pthread_cond_wait. */ -#ifdef HAVE_PSI_INTERFACE +#if defined(HAVE_PSI_INTERFACE) || defined(SAFE_MUTEX) #define mysql_cond_wait(C, M) \ inline_mysql_cond_wait(C, M, __FILE__, __LINE__) #else @@ -491,7 +491,7 @@ typedef struct st_mysql_cond mysql_cond_t; @c mysql_cond_timedwait is a drop-in replacement for @c pthread_cond_timedwait. */ -#ifdef HAVE_PSI_INTERFACE +#if defined(HAVE_PSI_INTERFACE) || defined(SAFE_MUTEX) #define mysql_cond_timedwait(C, M, W) \ inline_mysql_cond_timedwait(C, M, W, __FILE__, __LINE__) #else @@ -963,7 +963,7 @@ static inline int inline_mysql_cond_destroy( static inline int inline_mysql_cond_wait( mysql_cond_t *that, mysql_mutex_t *mutex -#ifdef HAVE_PSI_INTERFACE +#if defined(HAVE_PSI_INTERFACE) || defined(SAFE_MUTEX) , const char *src_file, uint src_line #endif ) @@ -980,7 +980,11 @@ static inline int inline_mysql_cond_wait( PSI_server->start_cond_wait(locker, src_file, src_line); } #endif +#ifdef SAFE_MUTEX + result= safe_cond_wait(&that->m_cond, &mutex->m_mutex, src_file, src_line); +#else result= pthread_cond_wait(&that->m_cond, &mutex->m_mutex); +#endif #ifdef HAVE_PSI_INTERFACE if (likely(locker != NULL)) PSI_server->end_cond_wait(locker, result); @@ -992,7 +996,7 @@ static inline int inline_mysql_cond_timedwait( mysql_cond_t *that, mysql_mutex_t *mutex, struct timespec *abstime -#ifdef HAVE_PSI_INTERFACE +#if defined(HAVE_PSI_INTERFACE) || defined(SAFE_MUTEX) , const char *src_file, uint src_line #endif ) @@ -1009,7 +1013,12 @@ static inline int inline_mysql_cond_timedwait( PSI_server->start_cond_wait(locker, src_file, src_line); } #endif +#ifdef SAFE_MUTEX + result= safe_cond_timedwait(&that->m_cond, &mutex->m_mutex, abstime, + src_file, src_line); +#else result= pthread_cond_timedwait(&that->m_cond, &mutex->m_mutex, abstime); +#endif #ifdef HAVE_PSI_INTERFACE if (likely(locker != NULL)) PSI_server->end_cond_wait(locker, result); diff --git a/include/mysql/service_kill_statement.h b/include/mysql/service_kill_statement.h new file mode 100644 index 00000000000..995b21f0a9f --- /dev/null +++ b/include/mysql/service_kill_statement.h @@ -0,0 +1,71 @@ +/* Copyright (c) 2013, Monty Program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ + +#ifndef MYSQL_SERVICE_KILL_STATEMENT_INCLUDED +#define MYSQL_SERVICE_KILL_STATEMENT_INCLUDED + +/** + @file + This service provides functions that allow plugins to support + the KILL statement. + + In MySQL support for the KILL statement is cooperative. The KILL + statement only sets a "killed" flag. This function returns the value + of that flag. A thread should check it often, especially inside + time-consuming loops, and gracefully abort the operation if it is + non-zero. + + thd_is_killed(thd) + @return 0 - no KILL statement was issued, continue normally + @return 1 - there was a KILL statement, abort the execution. + + thd_kill_level(thd) + @return thd_kill_levels_enum values +*/ + +#ifdef __cplusplus +extern "C" { +#endif + +enum thd_kill_levels { + THD_IS_NOT_KILLED=0, + THD_ABORT_SOFTLY=50, /**< abort when possible, don't leave tables corrupted */ + THD_ABORT_ASAP=100, /**< abort asap */ +}; + +extern struct kill_statement_service_st { + enum thd_kill_levels (*thd_kill_level_func)(const MYSQL_THD); +} *thd_kill_statement_service; + +/* backward compatibility helper */ +#define thd_killed(THD) (thd_kill_level(THD) == THD_ABORT_ASAP) + +#ifdef MYSQL_DYNAMIC_PLUGIN + +#define thd_kill_level(THD) \ + thd_kill_statement_service->thd_kill_level_func(THD) + +#else + +enum thd_kill_levels thd_kill_level(const MYSQL_THD); + +#endif + +#ifdef __cplusplus +} +#endif + +#endif + diff --git a/include/mysql/services.h b/include/mysql/services.h index 8eb506e1c37..b5b331d4923 100644 --- a/include/mysql/services.h +++ b/include/mysql/services.h @@ -24,6 +24,7 @@ extern "C" { #include <mysql/service_thread_scheduler.h> #include <mysql/service_progress_report.h> #include <mysql/service_debug_sync.h> +#include <mysql/service_kill_statement.h> #ifdef __cplusplus } |