275 lines
11 KiB
C
275 lines
11 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _PTHREAD_H_
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#define _PTHREAD_H_
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#include <limits.h>
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#include <machine/pthread_types.h>
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#include <sched.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <time.h>
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#if defined(__LP64__)
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#define __RESERVED_INITIALIZER , {0}
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#else
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#define __RESERVED_INITIALIZER
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#endif
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typedef struct {
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int volatile value;
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#ifdef __LP64__
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char __reserved[36];
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#endif
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} pthread_mutex_t;
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#define __PTHREAD_MUTEX_INIT_VALUE 0
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#define __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE 0x4000
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#define __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000
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#define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
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#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
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#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
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/* TODO: remove this namespace pollution. */
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#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
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#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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enum {
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PTHREAD_MUTEX_NORMAL = 0,
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PTHREAD_MUTEX_RECURSIVE = 1,
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PTHREAD_MUTEX_ERRORCHECK = 2,
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PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK,
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PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE,
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PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
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};
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typedef struct {
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int volatile value;
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#ifdef __LP64__
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char __reserved[44];
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#endif
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} pthread_cond_t;
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#define PTHREAD_COND_INITIALIZER {0 __RESERVED_INITIALIZER}
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typedef long pthread_mutexattr_t;
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typedef long pthread_condattr_t;
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typedef long pthread_rwlockattr_t;
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typedef struct {
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#if !defined(__LP64__)
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pthread_mutex_t __unused_lock;
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pthread_cond_t __unused_cond;
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#endif
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volatile int32_t state; // 0=unlock, -1=writer lock, +n=reader lock
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volatile int32_t writer_thread_id;
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volatile int32_t pending_readers;
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volatile int32_t pending_writers;
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int32_t attr;
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#ifdef __LP64__
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char __reserved[36];
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#else
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char __reserved[12];
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#endif
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} pthread_rwlock_t;
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#ifdef __LP64__
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#define PTHREAD_RWLOCK_INITIALIZER { 0, 0, 0, 0, 0, { 0 } }
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#else
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#define PTHREAD_RWLOCK_INITIALIZER { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0, 0, 0, 0, 0, { 0 } }
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#endif
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typedef int pthread_key_t;
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typedef int pthread_once_t;
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#define PTHREAD_ONCE_INIT 0
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#if defined(__LP64__)
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#define PTHREAD_STACK_MIN (4 * PAGE_SIZE)
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#else
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#define PTHREAD_STACK_MIN (2 * PAGE_SIZE)
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#endif
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#define PTHREAD_CREATE_DETACHED 0x00000001
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#define PTHREAD_CREATE_JOINABLE 0x00000000
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#define PTHREAD_PROCESS_PRIVATE 0
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#define PTHREAD_PROCESS_SHARED 1
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#define PTHREAD_SCOPE_SYSTEM 0
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#define PTHREAD_SCOPE_PROCESS 1
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__BEGIN_DECLS
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int pthread_atfork(void (*)(void), void (*)(void), void(*)(void));
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int pthread_attr_destroy(pthread_attr_t*) __nonnull((1));
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int pthread_attr_getdetachstate(const pthread_attr_t*, int*) __nonnull((1, 2));
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int pthread_attr_getguardsize(const pthread_attr_t*, size_t*) __nonnull((1, 2));
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int pthread_attr_getschedparam(const pthread_attr_t*, struct sched_param*) __nonnull((1, 2));
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int pthread_attr_getschedpolicy(const pthread_attr_t*, int*) __nonnull((1, 2));
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int pthread_attr_getscope(const pthread_attr_t*, int*) __nonnull((1, 2));
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int pthread_attr_getstack(const pthread_attr_t*, void**, size_t*) __nonnull((1, 2, 3));
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int pthread_attr_getstacksize(const pthread_attr_t*, size_t*) __nonnull((1, 2));
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int pthread_attr_init(pthread_attr_t*) __nonnull((1));
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int pthread_attr_setdetachstate(pthread_attr_t*, int) __nonnull((1));
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int pthread_attr_setguardsize(pthread_attr_t*, size_t) __nonnull((1));
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int pthread_attr_setschedparam(pthread_attr_t*, const struct sched_param*) __nonnull((1, 2));
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int pthread_attr_setschedpolicy(pthread_attr_t*, int) __nonnull((1));
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int pthread_attr_setscope(pthread_attr_t*, int) __nonnull((1));
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int pthread_attr_setstack(pthread_attr_t*, void*, size_t) __nonnull((1));
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int pthread_attr_setstacksize(pthread_attr_t*, size_t stack_size) __nonnull((1));
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int pthread_condattr_destroy(pthread_condattr_t*) __nonnull((1));
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int pthread_condattr_getclock(const pthread_condattr_t*, clockid_t*) __nonnull((1, 2));
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int pthread_condattr_getpshared(const pthread_condattr_t*, int*) __nonnull((1, 2));
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int pthread_condattr_init(pthread_condattr_t*) __nonnull((1));
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int pthread_condattr_setclock(pthread_condattr_t*, clockid_t) __nonnull((1));
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int pthread_condattr_setpshared(pthread_condattr_t*, int) __nonnull((1));
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int pthread_cond_broadcast(pthread_cond_t*) __nonnull((1));
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int pthread_cond_destroy(pthread_cond_t*) __nonnull((1));
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int pthread_cond_init(pthread_cond_t*, const pthread_condattr_t*) __nonnull((1));
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int pthread_cond_signal(pthread_cond_t*) __nonnull((1));
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int pthread_cond_timedwait(pthread_cond_t*, pthread_mutex_t*, const struct timespec*) __nonnull((1, 2, 3));
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int pthread_cond_wait(pthread_cond_t*, pthread_mutex_t*) __nonnull((1, 2));
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int pthread_create(pthread_t*, pthread_attr_t const*, void *(*)(void*), void*) __nonnull((1, 3));
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int pthread_detach(pthread_t);
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void pthread_exit(void*) __noreturn;
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int pthread_equal(pthread_t, pthread_t);
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int pthread_getattr_np(pthread_t, pthread_attr_t*) __nonnull((2));
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int pthread_getcpuclockid(pthread_t, clockid_t*) __nonnull((2));
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int pthread_getschedparam(pthread_t, int*, struct sched_param*) __nonnull((2, 3));
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void* pthread_getspecific(pthread_key_t);
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pid_t pthread_gettid_np(pthread_t);
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int pthread_join(pthread_t, void**);
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int pthread_key_create(pthread_key_t*, void (*)(void*)) __nonnull((1));
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int pthread_key_delete(pthread_key_t);
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int pthread_mutexattr_destroy(pthread_mutexattr_t*) __nonnull((1));
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int pthread_mutexattr_getpshared(const pthread_mutexattr_t*, int*) __nonnull((1, 2));
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int pthread_mutexattr_gettype(const pthread_mutexattr_t*, int*) __nonnull((1, 2));
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int pthread_mutexattr_init(pthread_mutexattr_t*) __nonnull((1));
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int pthread_mutexattr_setpshared(pthread_mutexattr_t*, int) __nonnull((1));
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int pthread_mutexattr_settype(pthread_mutexattr_t*, int) __nonnull((1));
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int pthread_mutex_destroy(pthread_mutex_t*) __nonnull((1));
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int pthread_mutex_init(pthread_mutex_t*, const pthread_mutexattr_t*) __nonnull((1));
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int pthread_mutex_lock(pthread_mutex_t*) __nonnull((1));
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int pthread_mutex_timedlock(pthread_mutex_t*, const struct timespec*) __nonnull((1, 2));
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int pthread_mutex_trylock(pthread_mutex_t*) __nonnull((1));
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int pthread_mutex_unlock(pthread_mutex_t*) __nonnull((1));
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int pthread_once(pthread_once_t*, void (*)(void)) __nonnull((1, 2));
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int pthread_rwlockattr_destroy(pthread_rwlockattr_t*) __nonnull((1));
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int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t*, int*) __nonnull((1, 2));
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int pthread_rwlockattr_init(pthread_rwlockattr_t*) __nonnull((1));
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int pthread_rwlockattr_setpshared(pthread_rwlockattr_t*, int) __nonnull((1));
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int pthread_rwlock_destroy(pthread_rwlock_t*) __nonnull((1));
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int pthread_rwlock_init(pthread_rwlock_t*, const pthread_rwlockattr_t*) __nonnull((1));
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int pthread_rwlock_rdlock(pthread_rwlock_t*) __nonnull((1));
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int pthread_rwlock_timedrdlock(pthread_rwlock_t*, const struct timespec*) __nonnull((1, 2));
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int pthread_rwlock_timedwrlock(pthread_rwlock_t*, const struct timespec*) __nonnull((1, 2));
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int pthread_rwlock_tryrdlock(pthread_rwlock_t*) __nonnull((1));
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int pthread_rwlock_trywrlock(pthread_rwlock_t*) __nonnull((1));
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int pthread_rwlock_unlock(pthread_rwlock_t *rwlock) __nonnull((1));
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int pthread_rwlock_wrlock(pthread_rwlock_t*) __nonnull((1));
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pthread_t pthread_self(void) __pure2;
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int pthread_setname_np(pthread_t, const char*) __nonnull((2));
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int pthread_setschedparam(pthread_t, int, const struct sched_param*) __nonnull((3));
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int pthread_setspecific(pthread_key_t, const void*);
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typedef void (*__pthread_cleanup_func_t)(void*);
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typedef struct __pthread_cleanup_t {
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struct __pthread_cleanup_t* __cleanup_prev;
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__pthread_cleanup_func_t __cleanup_routine;
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void* __cleanup_arg;
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} __pthread_cleanup_t;
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extern void __pthread_cleanup_push(__pthread_cleanup_t* c, __pthread_cleanup_func_t, void*);
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extern void __pthread_cleanup_pop(__pthread_cleanup_t*, int);
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/* Believe or not, the definitions of pthread_cleanup_push and
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* pthread_cleanup_pop below are correct. Posix states that these
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* can be implemented as macros that might introduce opening and
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* closing braces, and that using setjmp/longjmp/return/break/continue
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* between them results in undefined behavior.
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*/
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#define pthread_cleanup_push(routine, arg) \
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do { \
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__pthread_cleanup_t __cleanup; \
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__pthread_cleanup_push( &__cleanup, (routine), (arg) ); \
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#define pthread_cleanup_pop(execute) \
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__pthread_cleanup_pop( &__cleanup, (execute)); \
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} while (0); \
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#if !defined(__LP64__)
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// Bionic additions that are deprecated even in the 32-bit ABI.
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//
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// TODO: Remove them once chromium_org / NFC have switched over.
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int pthread_cond_timedwait_monotonic_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
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int pthread_cond_timedwait_monotonic(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
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int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*) /* TODO: __attribute__((deprecated("use pthread_cond_timedwait instead")))*/;
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#define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1 /* TODO: stop defining this to push LP32 off this API sooner. */
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int pthread_cond_timeout_np(pthread_cond_t*, pthread_mutex_t*, unsigned) /* TODO: __attribute__((deprecated("use pthread_cond_timedwait instead")))*/;
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int pthread_mutex_lock_timeout_np(pthread_mutex_t*, unsigned) __attribute__((deprecated("use pthread_mutex_timedlock instead")));
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#endif /* !defined(__LP64__) */
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__END_DECLS
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#endif /* _PTHREAD_H_ */
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