mariadb/mysys/my_atomic.c
Davi Arnaut ecd4a294a5 WL#5498: Remove dead and unused source code
Remove wrappers around inline -- static inline is used without
wrappers throughout the source code. We rely on the compiler or
linker to eliminate unused static functions.
2010-07-23 17:18:36 -03:00

67 lines
1.7 KiB
C

/* Copyright (C) 2006 MySQL AB, 2008-2009 Sun Microsystems, Inc
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 */
#include <my_global.h>
#include <my_sys.h>
#include <my_atomic.h>
/*
checks that the current build of atomic ops
can run on this machine
RETURN
ATOMIC_xxx values, see my_atomic.h
*/
int my_atomic_initialize()
{
compile_time_assert(sizeof(intptr) == sizeof(void *));
/* currently the only thing worth checking is SMP/UP issue */
#ifdef MY_ATOMIC_MODE_DUMMY
return my_getncpus() == 1 ? MY_ATOMIC_OK : MY_ATOMIC_NOT_1CPU;
#else
return MY_ATOMIC_OK;
#endif
}
#ifdef SAFE_MUTEX
#undef pthread_mutex_init
#undef pthread_mutex_destroy
#undef pthread_mutex_lock
#undef pthread_mutex_unlock
void plain_pthread_mutex_init(safe_mutex_t *m)
{
pthread_mutex_init(& m->mutex, NULL);
}
void plain_pthread_mutex_destroy(safe_mutex_t *m)
{
pthread_mutex_destroy(& m->mutex);
}
void plain_pthread_mutex_lock(safe_mutex_t *m)
{
pthread_mutex_lock(& m->mutex);
}
void plain_pthread_mutex_unlock(safe_mutex_t *m)
{
pthread_mutex_unlock(& m->mutex);
}
#endif