59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
|
/* Copyright (C) 2000 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 */
|
||
|
|
|
||
|
|
|
||
|
|
#if !defined(_my_no_pthread_h) && !defined(THREAD)
|
||
|
|
#define _my_no_pthread_h
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
This block is to access some thread-related type definitions
|
||
|
|
even in builds which do not need thread functions,
|
||
|
|
as some variables (based on these types) are declared
|
||
|
|
even in non-threaded builds.
|
||
|
|
Case in point: 'mf_keycache.c'
|
||
|
|
*/
|
||
|
|
#if defined(__WIN__)
|
||
|
|
#else /* Normal threads */
|
||
|
|
#include <pthread.h>
|
||
|
|
|
||
|
|
#endif /* defined(__WIN__) */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
This undefs some pthread mutex locks when one isn't using threads
|
||
|
|
to make thread safe code, that should also work in single thread
|
||
|
|
environment, easier to use.
|
||
|
|
*/
|
||
|
|
#define pthread_mutex_init(A,B)
|
||
|
|
#define pthread_mutex_lock(A)
|
||
|
|
#define pthread_mutex_unlock(A)
|
||
|
|
#define pthread_mutex_destroy(A)
|
||
|
|
#define my_rwlock_init(A,B)
|
||
|
|
#define rw_rdlock(A)
|
||
|
|
#define rw_wrlock(A)
|
||
|
|
#define rw_unlock(A)
|
||
|
|
#define rwlock_destroy(A)
|
||
|
|
|
||
|
|
typedef int my_pthread_once_t;
|
||
|
|
#define MY_PTHREAD_ONCE_INIT 0
|
||
|
|
#define MY_PTHREAD_ONCE_DONE 1
|
||
|
|
|
||
|
|
#define my_pthread_once(C,F) do { \
|
||
|
|
if (*(C) != MY_PTHREAD_ONCE_DONE) { F(); *(C)= MY_PTHREAD_ONCE_DONE; } \
|
||
|
|
} while(0)
|
||
|
|
|
||
|
|
#endif
|