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74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/* Basic platform-independent macro definitions for mutexes,
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thread-specific data and parameters for malloc.
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Copyright (C) 2003-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _MALLOC_MACHINE_H
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#define _MALLOC_MACHINE_H
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#undef thread_atfork_static
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#include <atomic.h>
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#include <bits/libc-lock.h>
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__libc_lock_define (typedef, mutex_t)
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#define mutex_init(m) __libc_lock_init (*(m))
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#define mutex_lock(m) __libc_lock_lock (*(m))
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#define mutex_trylock(m) __libc_lock_trylock (*(m))
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#define mutex_unlock(m) __libc_lock_unlock (*(m))
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#define MUTEX_INITIALIZER LLL_LOCK_INITIALIZER
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/* This is defined by newer gcc version unique for each module. */
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extern void *__dso_handle __attribute__ ((__weak__));
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#include <fork.h>
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#define ATFORK_MEM static struct fork_handler atfork_mem
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#ifdef SHARED
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# define thread_atfork(prepare, parent, child) \
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atfork_mem.prepare_handler = prepare; \
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atfork_mem.parent_handler = parent; \
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atfork_mem.child_handler = child; \
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atfork_mem.dso_handle = __dso_handle; \
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atfork_mem.refcntr = 1; \
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__linkin_atfork (&atfork_mem)
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#else
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# define thread_atfork(prepare, parent, child) \
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atfork_mem.prepare_handler = prepare; \
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atfork_mem.parent_handler = parent; \
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atfork_mem.child_handler = child; \
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atfork_mem.dso_handle = &__dso_handle == NULL ? NULL : __dso_handle; \
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atfork_mem.refcntr = 1; \
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__linkin_atfork (&atfork_mem)
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#endif
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/* thread specific data for glibc */
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#include <bits/libc-tsd.h>
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typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */
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__libc_tsd_define (static, void *, MALLOC) /* declaration/common definition */
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#define tsd_key_create(key, destr) ((void) (key))
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#define tsd_setspecific(key, data) __libc_tsd_set (void *, MALLOC, (data))
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#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (void *, MALLOC))
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#include <sysdeps/generic/malloc-machine.h>
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#endif /* !defined(_MALLOC_MACHINE_H) */
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