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/* Basic platform-independent macro definitions for mutexes,
thread-specific data and parameters for malloc.
Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _MALLOC_MACHINE_H
#define _MALLOC_MACHINE_H
#undef thread_atfork_static
#include <atomic.h>
#include <bits/libc-lock.h>
__libc_lock_define (typedef, mutex_t)
#if defined(__libc_maybe_call2)
#define mutex_init(m) \
__libc_maybe_call2 (pthread_mutex_init, (m, NULL), (*(int *)(m) = 0))
#define mutex_lock(m) \
__libc_maybe_call2 (pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0))
#define mutex_trylock(m) \
__libc_maybe_call2 (pthread_mutex_trylock, (m), \
(*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0)))
#define mutex_unlock(m) \
__libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0))
#else
#define mutex_init(m) \
__libc_maybe_call (__pthread_mutex_init, (m, NULL), (*(int *)(m) = 0))
#define mutex_lock(m) \
__libc_maybe_call (__pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0))
#define mutex_trylock(m) \
__libc_maybe_call (__pthread_mutex_trylock, (m), \
(*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0)))
#define mutex_unlock(m) \
__libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))
#endif
/* This is defined by newer gcc version unique for each module. */
extern void *__dso_handle __attribute__ ((__weak__));
#include <fork.h>
#ifdef SHARED
# define thread_atfork(prepare, parent, child) \
__register_atfork (prepare, parent, child, __dso_handle)
#else
# define thread_atfork(prepare, parent, child) \
__register_atfork (prepare, parent, child, \
&__dso_handle == NULL ? NULL : __dso_handle)
#endif
/* thread specific data for glibc */
#include <bits/libc-tsd.h>
typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */
__libc_tsd_define (static, MALLOC) /* declaration/common definition */
#define tsd_key_create(key, destr) ((void) (key))
#define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data))
#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC))
#include <sysdeps/generic/malloc-machine.h>
#endif /* !defined(_MALLOC_MACHINE_H) */
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