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75 lines
2.4 KiB
C
75 lines
2.4 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) 2003-2012 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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/* Assume hurd, with cthreads */
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/* Cthreads `mutex_t' is a pointer to a mutex, and malloc wants just the
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mutex itself. */
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#undef mutex_t
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#define mutex_t struct mutex
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#undef mutex_init
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#define mutex_init(m) (__mutex_init(m), 0)
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#undef mutex_lock
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#define mutex_lock(m) (__mutex_lock(m), 0)
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#undef mutex_unlock
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#define mutex_unlock(m) (__mutex_unlock(m), 0)
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#define mutex_trylock(m) (!__mutex_trylock(m))
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#define thread_atfork(prepare, parent, child) do {} while(0)
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#define thread_atfork_static(prepare, parent, child) \
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text_set_element(_hurd_fork_prepare_hook, prepare); \
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text_set_element(_hurd_fork_parent_hook, parent); \
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text_set_element(_hurd_fork_child_hook, child);
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/* No we're *not* using pthreads. */
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#define __pthread_initialize ((void (*)(void))0)
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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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/* madvise is a stub on Hurd, so don't bother calling it. */
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#include <sys/mman.h>
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#undef madvise
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#define madvise(addr, len, advice) ((void) (addr), (void) (len), (void) (advice))
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#include <sysdeps/generic/malloc-machine.h>
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#endif /* !defined(_MALLOC_MACHINE_H) */
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