mariadb/storage/perfschema/pfs_server.cc

134 lines
3.6 KiB
C++
Raw Normal View History

/* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
/**
@file storage/perfschema/pfs_server.cc
Private interface for the server (implementation).
*/
#include "my_global.h"
#include "my_sys.h"
#include "mysys_err.h"
#include "pfs_server.h"
#include "pfs.h"
#include "pfs_global.h"
#include "pfs_instr_class.h"
#include "pfs_instr.h"
#include "pfs_events_waits.h"
#include "pfs_timer.h"
PFS_global_param pfs_param;
Bug#53445: Build with -Wall and fix warnings that it generates Fix various mismatches between function's language linkage. Any particular function that is declared in C++ but should be callable from C must have C linkage. Note that function types with different linkages are also distinct. Thus, if a function type is declared in C code, it will have C linkage (same if declared in a extern "C" block). client/mysql.cc: Mismatch between prototype and declaration. client/mysqltest.cc: mysqltest used to be C code. Use C linkage where appropriate. cmd-line-utils/readline/input.c: Isolate unreachable code. include/my_alloc.h: Function type must have C linkage. include/my_base.h: Function type must have C linkage. include/my_global.h: Add helper macros to avoid spurious namespace indentation. include/mysql.h.pp: Update ABI file. mysys/my_gethwaddr.c: Remove stray carriage return and fix coding style. plugin/semisync/semisync_master_plugin.cc: Callback function types have C linkage. plugin/semisync/semisync_slave_plugin.cc: Callback function types have C linkage. sql/derror.cc: Expected function type has C linkage. sql/field.cc: Use helper macro and fix indentation. sql/handler.cc: Expected function type has C linkage. sql/item_sum.cc: Correct function linkages. Remove now unnecessary cast. sql/item_sum.h: Add prototypes with the appropriate linkage as otherwise they are distinct. sql/mysqld.cc: Wrap functions in C linkage mode. sql/opt_range.cc: C language linkage is ignored for class member functions. sql/partition_info.cc: Add wrapper functions with C linkage for class member functions. sql/rpl_utility.h: Use helper macro and fix indentation. sql/sql_class.cc: Change type of thd argument -- THD is a class. Use helper macro and fix indentation. sql/sql_class.h: Change type of thd argument -- THD is a class. sql/sql_select.cc: Expected function type has C linkage. sql/sql_select.h: Move prototype to sql_test.h sql/sql_show.cc: Expected function type has C linkage. sql/sql_test.cc: Fix required function prototype and fix coding style. sql/sql_test.h: Removed unnecessary export and add another. storage/myisammrg/ha_myisammrg.cc: Expected function type has C linkage. storage/perfschema/pfs.cc: PSI headers are declared with C language linkage, which also applies to function types.
2010-05-31 12:29:54 -03:00
C_MODE_START
static void destroy_pfs_thread(void *key);
Bug#53445: Build with -Wall and fix warnings that it generates Fix various mismatches between function's language linkage. Any particular function that is declared in C++ but should be callable from C must have C linkage. Note that function types with different linkages are also distinct. Thus, if a function type is declared in C code, it will have C linkage (same if declared in a extern "C" block). client/mysql.cc: Mismatch between prototype and declaration. client/mysqltest.cc: mysqltest used to be C code. Use C linkage where appropriate. cmd-line-utils/readline/input.c: Isolate unreachable code. include/my_alloc.h: Function type must have C linkage. include/my_base.h: Function type must have C linkage. include/my_global.h: Add helper macros to avoid spurious namespace indentation. include/mysql.h.pp: Update ABI file. mysys/my_gethwaddr.c: Remove stray carriage return and fix coding style. plugin/semisync/semisync_master_plugin.cc: Callback function types have C linkage. plugin/semisync/semisync_slave_plugin.cc: Callback function types have C linkage. sql/derror.cc: Expected function type has C linkage. sql/field.cc: Use helper macro and fix indentation. sql/handler.cc: Expected function type has C linkage. sql/item_sum.cc: Correct function linkages. Remove now unnecessary cast. sql/item_sum.h: Add prototypes with the appropriate linkage as otherwise they are distinct. sql/mysqld.cc: Wrap functions in C linkage mode. sql/opt_range.cc: C language linkage is ignored for class member functions. sql/partition_info.cc: Add wrapper functions with C linkage for class member functions. sql/rpl_utility.h: Use helper macro and fix indentation. sql/sql_class.cc: Change type of thd argument -- THD is a class. Use helper macro and fix indentation. sql/sql_class.h: Change type of thd argument -- THD is a class. sql/sql_select.cc: Expected function type has C linkage. sql/sql_select.h: Move prototype to sql_test.h sql/sql_show.cc: Expected function type has C linkage. sql/sql_test.cc: Fix required function prototype and fix coding style. sql/sql_test.h: Removed unnecessary export and add another. storage/myisammrg/ha_myisammrg.cc: Expected function type has C linkage. storage/perfschema/pfs.cc: PSI headers are declared with C language linkage, which also applies to function types.
2010-05-31 12:29:54 -03:00
C_MODE_END
static void cleanup_performance_schema(void);
struct PSI_bootstrap*
initialize_performance_schema(const PFS_global_param *param)
{
pfs_initialized= false;
if (! param->m_enabled)
{
/*
The performance schema is disabled in the startup command line.
All the instrumentation is turned off.
*/
return NULL;
}
init_timers();
PFS_atomic::init();
if (pthread_key_create(&THR_PFS, destroy_pfs_thread))
return NULL;
THR_PFS_initialized= true;
if (init_sync_class(param->m_mutex_class_sizing,
param->m_rwlock_class_sizing,
param->m_cond_class_sizing) ||
init_thread_class(param->m_thread_class_sizing) ||
init_table_share(param->m_table_share_sizing) ||
init_file_class(param->m_file_class_sizing) ||
init_instruments(param) ||
init_events_waits_history_long(
param->m_events_waits_history_long_sizing) ||
init_file_hash() ||
init_table_share_hash())
{
/*
The performance schema initialization failed.
Free the memory used, and disable the instrumentation.
*/
cleanup_performance_schema();
return NULL;
}
pfs_initialized= true;
return &PFS_bootstrap;
}
static void destroy_pfs_thread(void *key)
{
PFS_thread* pfs= reinterpret_cast<PFS_thread*> (key);
DBUG_ASSERT(pfs);
/*
This automatic cleanup is a last resort and best effort to avoid leaks,
and may not work on windows due to the implementation of pthread_key_create().
Please either use:
- my_thread_end()
- or PSI_server->delete_current_thread()
in the instrumented code, to explicitly cleanup the instrumentation.
Avoid invalid writes when the main() thread completes after shutdown:
the memory pointed by pfs is already released.
*/
if (pfs_initialized)
destroy_thread(pfs);
}
Bug#53445: Build with -Wall and fix warnings that it generates Fix various mismatches between function's language linkage. Any particular function that is declared in C++ but should be callable from C must have C linkage. Note that function types with different linkages are also distinct. Thus, if a function type is declared in C code, it will have C linkage (same if declared in a extern "C" block). client/mysql.cc: Mismatch between prototype and declaration. client/mysqltest.cc: mysqltest used to be C code. Use C linkage where appropriate. cmd-line-utils/readline/input.c: Isolate unreachable code. include/my_alloc.h: Function type must have C linkage. include/my_base.h: Function type must have C linkage. include/my_global.h: Add helper macros to avoid spurious namespace indentation. include/mysql.h.pp: Update ABI file. mysys/my_gethwaddr.c: Remove stray carriage return and fix coding style. plugin/semisync/semisync_master_plugin.cc: Callback function types have C linkage. plugin/semisync/semisync_slave_plugin.cc: Callback function types have C linkage. sql/derror.cc: Expected function type has C linkage. sql/field.cc: Use helper macro and fix indentation. sql/handler.cc: Expected function type has C linkage. sql/item_sum.cc: Correct function linkages. Remove now unnecessary cast. sql/item_sum.h: Add prototypes with the appropriate linkage as otherwise they are distinct. sql/mysqld.cc: Wrap functions in C linkage mode. sql/opt_range.cc: C language linkage is ignored for class member functions. sql/partition_info.cc: Add wrapper functions with C linkage for class member functions. sql/rpl_utility.h: Use helper macro and fix indentation. sql/sql_class.cc: Change type of thd argument -- THD is a class. Use helper macro and fix indentation. sql/sql_class.h: Change type of thd argument -- THD is a class. sql/sql_select.cc: Expected function type has C linkage. sql/sql_select.h: Move prototype to sql_test.h sql/sql_show.cc: Expected function type has C linkage. sql/sql_test.cc: Fix required function prototype and fix coding style. sql/sql_test.h: Removed unnecessary export and add another. storage/myisammrg/ha_myisammrg.cc: Expected function type has C linkage. storage/perfschema/pfs.cc: PSI headers are declared with C language linkage, which also applies to function types.
2010-05-31 12:29:54 -03:00
static void cleanup_performance_schema(void)
{
cleanup_instruments();
cleanup_sync_class();
cleanup_thread_class();
cleanup_table_share();
cleanup_file_class();
cleanup_events_waits_history_long();
cleanup_table_share_hash();
cleanup_file_hash();
PFS_atomic::cleanup();
}
void shutdown_performance_schema(void)
{
pfs_initialized= false;
cleanup_performance_schema();
/*
Be careful to not delete un-initialized keys,
this would affect key 0, which is THR_KEY_mysys,
*/
if (THR_PFS_initialized)
{
my_pthread_setspecific_ptr(THR_PFS, NULL);
pthread_key_delete(THR_PFS);
THR_PFS_initialized= false;
}
}