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authorunknown <jani@hynda.mysql.fi>2007-06-27 17:49:12 +0300
committerunknown <jani@hynda.mysql.fi>2007-06-27 17:49:12 +0300
commit5444b55cbbab69a508e6c477a1b9580eff969da1 (patch)
treeeb82a0418f88b83d49bf66dfc659d59862535683 /mysys/array.c
parente34641b3cece714b861c7130f245659342f583ba (diff)
parent1a96259191b193b353387cbb70d7567009e3b247 (diff)
downloadmariadb-git-5444b55cbbab69a508e6c477a1b9580eff969da1.tar.gz
Merge jamppa@bk-internal.mysql.com:/home/bk/mysql-5.1
into hynda.mysql.fi:/home/my/mysql-maria BitKeeper/etc/ignore: auto-union Makefile.am: Auto merged BUILD/SETUP.sh: Auto merged BitKeeper/deleted/.del-init_db.sql~a77d572c39d5a1f8: Auto merged client/mysqldump.c: Auto merged include/Makefile.am: Auto merged include/m_string.h: Auto merged include/my_base.h: Auto merged include/my_dbug.h: Auto merged libmysql/CMakeLists.txt: Auto merged libmysql/Makefile.shared: Auto merged libmysqld/Makefile.am: Auto merged mysql-test/include/varchar.inc: Auto merged mysql-test/lib/mtr_cases.pl: Auto merged mysql-test/lib/mtr_io.pl: Auto merged mysql-test/lib/mtr_misc.pl: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/lib/mtr_process.pl: Auto merged mysql-test/lib/mtr_report.pl: Auto merged mysql-test/r/events_logs_tests.result: Auto merged mysql-test/r/view.result: Auto merged mysql-test/t/disabled.def: Auto merged mysql-test/t/events_logs_tests.test: Auto merged mysql-test/t/myisam.test: Auto merged mysql-test/t/view.test: Auto merged mysys/Makefile.am: Auto merged mysys/my_create.c: Auto merged mysys/my_handler.c: Auto merged mysys/my_init.c: Auto merged mysys/my_open.c: Auto merged mysys/safemalloc.c: Auto merged plugin/daemon_example/daemon_example.cc: Auto merged sql/Makefile.am: Auto merged sql/filesort.cc: Auto merged sql/gen_lex_hash.cc: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/handler.cc: Auto merged sql/handler.h: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/log.cc: Auto merged sql/mysql_priv.h: Auto merged sql/opt_range.cc: Auto merged sql/slave.cc: Auto merged sql/slave.h: Auto merged sql/sql_parse.cc: Auto merged sql/sql_select.cc: Auto merged sql/share/errmsg.txt: Auto merged sql/sql_table.cc: Auto merged sql/sql_test.cc: Auto merged sql/udf_example.c: Auto merged sql/uniques.cc: Auto merged sql/unireg.cc: Auto merged storage/csv/ha_tina.cc: Auto merged storage/myisam/ft_boolean_search.c: Auto merged storage/myisam/ft_nlq_search.c: Auto merged storage/myisam/ft_parser.c: Auto merged storage/myisam/ft_stopwords.c: Auto merged storage/myisam/ft_update.c: Auto merged storage/myisam/fulltext.h: Auto merged storage/myisam/ha_myisam.h: Auto merged storage/myisam/mi_checksum.c: Auto merged storage/myisam/mi_create.c: Auto merged storage/myisam/mi_delete.c: Auto merged storage/myisam/mi_delete_all.c: Auto merged storage/myisam/mi_key.c: Auto merged storage/myisam/mi_log.c: Auto merged storage/myisam/mi_open.c: Auto merged storage/myisam/mi_range.c: Auto merged storage/myisam/mi_rkey.c: Auto merged storage/myisam/mi_rsamepos.c: Auto merged storage/myisam/mi_search.c: Auto merged storage/myisam/mi_test1.c: Auto merged storage/myisam/mi_test2.c: Auto merged storage/myisam/mi_unique.c: Auto merged storage/myisam/mi_update.c: Auto merged storage/myisam/myisamlog.c: Auto merged storage/myisam/myisampack.c: Auto merged storage/myisam/rt_index.c: Auto merged storage/myisam/sort.c: Auto merged storage/myisam/sp_test.c: Auto merged storage/myisammrg/ha_myisammrg.h: Auto merged storage/ndb/src/mgmapi/mgmapi.cpp: Auto merged unittest/Makefile.am: Auto merged BitKeeper/triggers/post-commit: Manual merge from mysql-5.1 to mysql-maria configure.in: Manual merge from mysql-5.1 to mysql-maria include/ft_global.h: Manual merge from mysql-5.1 to mysql-maria include/keycache.h: Manual merge from mysql-5.1 to mysql-maria include/my_atomic.h: Manual merge from mysql-5.1 to mysql-maria include/my_global.h: Manual merge from mysql-5.1 to mysql-maria include/my_sys.h: Manual merge from mysql-5.1 to mysql-maria include/myisam.h: Manual merge from mysql-5.1 to mysql-maria mysys/array.c: Manual merge from mysql-5.1 to mysql-maria mysys/mf_keycache.c: Manual merge from mysql-5.1 to mysql-maria mysys/mf_keycaches.c: Manual merge from mysql-5.1 to mysql-maria mysys/my_pread.c: Manual merge from mysql-5.1 to mysql-maria sql/mysqld.cc: Manual merge from mysql-5.1 to mysql-maria sql/net_serv.cc: Manual merge from mysql-5.1 to mysql-maria sql/set_var.cc: Manual merge from mysql-5.1 to mysql-maria sql/set_var.h: Manual merge from mysql-5.1 to mysql-maria sql/sql_class.h: Manual merge from mysql-5.1 to mysql-maria storage/myisam/ft_static.c: Manual merge from mysql-5.1 to mysql-maria storage/myisam/ha_myisam.cc: Manual merge from mysql-5.1 to mysql-maria storage/myisam/mi_check.c: Manual merge from mysql-5.1 to mysql-maria storage/myisam/mi_dynrec.c: Manual merge from mysql-5.1 to mysql-maria storage/myisam/mi_packrec.c: Manual merge from mysql-5.1 to mysql-maria storage/myisam/mi_write.c: Manual merge from mysql-5.1 to mysql-maria storage/myisam/myisamchk.c: Manual merge from mysql-5.1 to mysql-maria storage/myisam/myisamdef.h: Manual merge from mysql-5.1 to mysql-maria storage/myisammrg/ha_myisammrg.cc: Manual merge from mysql-5.1 to mysql-maria unittest/mysys/Makefile.am: Manual merge from mysql-5.1 to mysql-maria unittest/mysys/my_atomic-t.c: Manual merge from mysql-5.1 to mysql-maria
Diffstat (limited to 'mysys/array.c')
-rw-r--r--mysys/array.c89
1 files changed, 58 insertions, 31 deletions
diff --git a/mysys/array.c b/mysys/array.c
index 8a539f18a20..b7342f70ef8 100644
--- a/mysys/array.c
+++ b/mysys/array.c
@@ -63,7 +63,7 @@ my_bool init_dynamic_array2(DYNAMIC_ARRAY *array, uint element_size,
array->size_of_element=element_size;
if ((array->buffer= init_buffer))
DBUG_RETURN(FALSE);
- if (!(array->buffer=(uchar*) my_malloc_ci(element_size*init_alloc,MYF(MY_WME))))
+ if (!(array->buffer=(uchar*) my_malloc_ci(element_size*init_alloc, MYF(MY_WME))))
{
array->max_element=0;
DBUG_RETURN(TRUE);
@@ -179,7 +179,7 @@ uchar *pop_dynamic(DYNAMIC_ARRAY *array)
}
/*
- Replace elemnent in array with given element and index
+ Replace element in array with given element and index
SYNOPSIS
set_dynamic()
@@ -200,42 +200,69 @@ my_bool set_dynamic(DYNAMIC_ARRAY *array, uchar* element, uint idx)
{
if (idx >= array->elements)
{
- if (idx >= array->max_element)
- {
- uint size;
- char *new_ptr;
- size=(idx+array->alloc_increment)/array->alloc_increment;
- size*= array->alloc_increment;
- if (array->buffer == (uchar *)(array + 1))
- {
- /*
- In this senerio, the buffer is statically preallocated,
- so we have to create an all-new malloc since we overflowed
- */
- if (!(new_ptr= (char *) my_malloc(size *
- array->size_of_element,
- MYF(MY_WME))))
- return 0;
- memcpy(new_ptr, array->buffer,
- array->elements * array->size_of_element);
- }
- else
- if (!(new_ptr=(char*) my_realloc(array->buffer,size*
- array->size_of_element,
- MYF(MY_WME | MY_ALLOW_ZERO_PTR))))
- return TRUE;
- array->buffer= (uchar*) new_ptr;
- array->max_element=size;
- }
+ if (idx >= array->max_element && allocate_dynamic(array, idx))
+ return TRUE;
bzero((uchar*) (array->buffer+array->elements*array->size_of_element),
- (idx - array->elements)*array->size_of_element);
+ (idx - array->elements)*array->size_of_element);
array->elements=idx+1;
}
memcpy(array->buffer+(idx * array->size_of_element),element,
- (size_t) array->size_of_element);
+ (size_t) array->size_of_element);
return FALSE;
}
+
+/*
+ Ensure that dynamic array has enough elements
+
+ SYNOPSIS
+ allocate_dynamic()
+ array
+ max_elements Numbers of elements that is needed
+
+ NOTES
+ Any new allocated element are NOT initialized
+
+ RETURN VALUE
+ FALSE Ok
+ TRUE Allocation of new memory failed
+*/
+
+my_bool allocate_dynamic(DYNAMIC_ARRAY *array, uint max_elements)
+{
+ if (max_elements >= array->max_element)
+ {
+ uint size;
+ char *new_ptr;
+ size= (max_elements + array->alloc_increment)/array->alloc_increment;
+ size*= array->alloc_increment;
+ if (array->buffer == (uchar *)(array + 1))
+ {
+ /*
+ In this senerio, the buffer is statically preallocated,
+ so we have to create an all-new malloc since we overflowed
+ */
+ if (!(new_ptr= (char *) my_malloc(size *
+ array->size_of_element,
+ MYF(MY_WME))))
+ return 0;
+ memcpy(new_ptr, array->buffer,
+ array->elements * array->size_of_element);
+ }
+ else
+
+
+ if (!(new_ptr= (char*) my_realloc(array->buffer,size*
+ array->size_of_element,
+ MYF(MY_WME | MY_ALLOW_ZERO_PTR))))
+ return TRUE;
+ array->buffer= new_ptr;
+ array->max_element= size;
+ }
+ return FALSE;
+}
+
+
/*
Get an element from array by given index