/* * Copyright (C) 2008 The Android Open Source Project * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _PTHREAD_H_ #define _PTHREAD_H_ #include #include #include #include #include typedef struct { int volatile value; } pthread_mutex_t; #define __PTHREAD_MUTEX_INIT_VALUE 0 #define __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE 0x4000 #define __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000 #define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE} #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE} #define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE} enum { PTHREAD_MUTEX_NORMAL = 0, PTHREAD_MUTEX_RECURSIVE = 1, PTHREAD_MUTEX_ERRORCHECK = 2, PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK, PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL }; typedef struct { int volatile value; } pthread_cond_t; #define PTHREAD_COND_INITIALIZER {0} typedef struct { uint32_t flags; void* stack_base; size_t stack_size; size_t guard_size; int32_t sched_policy; int32_t sched_priority; } pthread_attr_t; typedef long pthread_mutexattr_t; typedef long pthread_condattr_t; typedef int pthread_rwlockattr_t; typedef struct { pthread_mutex_t lock; pthread_cond_t cond; int numLocks; int writerThreadId; int pendingReaders; int pendingWriters; void* reserved[4]; /* for future extensibility */ } pthread_rwlock_t; #define PTHREAD_RWLOCK_INITIALIZER { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0, 0, 0, 0, { NULL, NULL, NULL, NULL } } typedef int pthread_key_t; typedef long pthread_t; typedef volatile int pthread_once_t; #define PTHREAD_ONCE_INIT 0 #define PTHREAD_STACK_MIN (2 * PAGE_SIZE) #define PTHREAD_CREATE_DETACHED 0x00000001 #define PTHREAD_CREATE_JOINABLE 0x00000000 #define PTHREAD_PROCESS_PRIVATE 0 #define PTHREAD_PROCESS_SHARED 1 #define PTHREAD_SCOPE_SYSTEM 0 #define PTHREAD_SCOPE_PROCESS 1 __BEGIN_DECLS int pthread_atfork(void (*)(void), void (*)(void), void(*)(void)); int pthread_attr_destroy(pthread_attr_t*) __nonnull((1)); int pthread_attr_getdetachstate(const pthread_attr_t*, int*) __nonnull((1, 2)); int pthread_attr_getguardsize(const pthread_attr_t*, size_t*) __nonnull((1, 2)); int pthread_attr_getschedparam(const pthread_attr_t*, struct sched_param*) __nonnull((1, 2)); int pthread_attr_getschedpolicy(const pthread_attr_t*, int*) __nonnull((1, 2)); int pthread_attr_getscope(const pthread_attr_t*, int*) __nonnull((1, 2)); int pthread_attr_getstack(const pthread_attr_t*, void**, size_t*) __nonnull((1, 2, 3)); int pthread_attr_getstacksize(const pthread_attr_t*, size_t*) __nonnull((1, 2)); int pthread_attr_init(pthread_attr_t*) __nonnull((1)); int pthread_attr_setdetachstate(pthread_attr_t*, int) __nonnull((1)); int pthread_attr_setguardsize(pthread_attr_t*, size_t) __nonnull((1)); int pthread_attr_setschedparam(pthread_attr_t*, const struct sched_param*) __nonnull((1, 2)); int pthread_attr_setschedpolicy(pthread_attr_t*, int) __nonnull((1)); int pthread_attr_setscope(pthread_attr_t*, int) __nonnull((1)); int pthread_attr_setstack(pthread_attr_t*, void*, size_t) __nonnull((1)); int pthread_attr_setstacksize(pthread_attr_t * attr, size_t stack_size) __nonnull((1)); int pthread_condattr_destroy(pthread_condattr_t*) __nonnull((1)); int pthread_condattr_getpshared(const pthread_condattr_t*, int*) __nonnull((1, 2)); int pthread_condattr_init(pthread_condattr_t*) __nonnull((1)); int pthread_condattr_setpshared(pthread_condattr_t*, int) __nonnull((1)); int pthread_cond_broadcast(pthread_cond_t*) __nonnull((1)); int pthread_cond_destroy(pthread_cond_t*) __nonnull((1)); int pthread_cond_init(pthread_cond_t*, const pthread_condattr_t*) __nonnull((1)); int pthread_cond_signal(pthread_cond_t*) __nonnull((1)); int pthread_cond_timedwait(pthread_cond_t*, pthread_mutex_t*, const struct timespec*) __nonnull((1, 2, 3)); int pthread_cond_wait(pthread_cond_t*, pthread_mutex_t*) __nonnull((1, 2)); int pthread_create(pthread_t*, pthread_attr_t const*, void *(*)(void*), void*) __nonnull((1, 3)); int pthread_detach(pthread_t); void pthread_exit(void*) __noreturn; int pthread_equal(pthread_t, pthread_t); int pthread_getattr_np(pthread_t, pthread_attr_t*) __nonnull((2)); int pthread_getcpuclockid(pthread_t, clockid_t*) __nonnull((2)); int pthread_getschedparam(pthread_t, int*, struct sched_param*) __nonnull((2, 3)); void* pthread_getspecific(pthread_key_t); int pthread_join(pthread_t, void**); int pthread_key_create(pthread_key_t*, void (*)(void*)) __nonnull((1)); int pthread_key_delete(pthread_key_t); int pthread_kill(pthread_t, int); int pthread_mutexattr_destroy(pthread_mutexattr_t*) __nonnull((1)); int pthread_mutexattr_getpshared(const pthread_mutexattr_t*, int*) __nonnull((1, 2)); int pthread_mutexattr_gettype(const pthread_mutexattr_t*, int*) __nonnull((1, 2)); int pthread_mutexattr_init(pthread_mutexattr_t*) __nonnull((1)); int pthread_mutexattr_setpshared(pthread_mutexattr_t*, int) __nonnull((1)); int pthread_mutexattr_settype(pthread_mutexattr_t*, int) __nonnull((1)); int pthread_mutex_destroy(pthread_mutex_t*) __nonnull((1)); int pthread_mutex_init(pthread_mutex_t*, const pthread_mutexattr_t*) __nonnull((1)); int pthread_mutex_lock(pthread_mutex_t*) __nonnull((1)); int pthread_mutex_timedlock(pthread_mutex_t*, struct timespec*) __nonnull((1, 2)); int pthread_mutex_trylock(pthread_mutex_t*) __nonnull((1)); int pthread_mutex_unlock(pthread_mutex_t*) __nonnull((1)); int pthread_once(pthread_once_t*, void (*)(void)) __nonnull((1, 2)); int pthread_rwlockattr_destroy(pthread_rwlockattr_t*) __nonnull((1)); int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t*, int*) __nonnull((1, 2)); int pthread_rwlockattr_init(pthread_rwlockattr_t*) __nonnull((1)); int pthread_rwlockattr_setpshared(pthread_rwlockattr_t*, int) __nonnull((1)); int pthread_rwlock_destroy(pthread_rwlock_t*) __nonnull((1)); int pthread_rwlock_init(pthread_rwlock_t*, const pthread_rwlockattr_t*) __nonnull((1)); int pthread_rwlock_rdlock(pthread_rwlock_t*) __nonnull((1)); int pthread_rwlock_timedrdlock(pthread_rwlock_t*, const struct timespec*) __nonnull((1, 2)); int pthread_rwlock_timedwrlock(pthread_rwlock_t*, const struct timespec*) __nonnull((1, 2)); int pthread_rwlock_tryrdlock(pthread_rwlock_t*) __nonnull((1)); int pthread_rwlock_trywrlock(pthread_rwlock_t*) __nonnull((1)); int pthread_rwlock_unlock(pthread_rwlock_t *rwlock) __nonnull((1)); int pthread_rwlock_wrlock(pthread_rwlock_t*) __nonnull((1)); pthread_t pthread_self(void); int pthread_setname_np(pthread_t, const char*) __nonnull((2)); int pthread_setschedparam(pthread_t, int, const struct sched_param*) __nonnull((3)); int pthread_setspecific(pthread_key_t, const void*); int pthread_sigmask(int, const sigset_t*, sigset_t*); typedef void (*__pthread_cleanup_func_t)(void*); typedef struct __pthread_cleanup_t { struct __pthread_cleanup_t* __cleanup_prev; __pthread_cleanup_func_t __cleanup_routine; void* __cleanup_arg; } __pthread_cleanup_t; extern void __pthread_cleanup_push(__pthread_cleanup_t* c, __pthread_cleanup_func_t, void*); extern void __pthread_cleanup_pop(__pthread_cleanup_t*, int); /* Believe or not, the definitions of pthread_cleanup_push and * pthread_cleanup_pop below are correct. Posix states that these * can be implemented as macros that might introduce opening and * closing braces, and that using setjmp/longjmp/return/break/continue * between them results in undefined behavior. */ #define pthread_cleanup_push(routine, arg) \ do { \ __pthread_cleanup_t __cleanup; \ __pthread_cleanup_push( &__cleanup, (routine), (arg) ); \ #define pthread_cleanup_pop(execute) \ __pthread_cleanup_pop( &__cleanup, (execute)); \ } while (0); \ #if !defined(__LP64__) /* Deprecated by POSIX. TODO: support for LP64 but add deprecated attribute instead? */ int pthread_attr_getstackaddr(const pthread_attr_t*, void**) __nonnull((1, 2)); /* deprecated */ int pthread_attr_setstackaddr(pthread_attr_t*, void*) __nonnull((1)); /* deprecated */ /* Bionic additions that are deprecated even in the 32-bit ABI. */ int pthread_cond_timedwait_monotonic_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*); int pthread_cond_timedwait_monotonic(pthread_cond_t*, pthread_mutex_t*, const struct timespec*); #define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1 /* * Like pthread_cond_timedwait except 'reltime' is relative to the current time. * TODO: not like glibc; include in LP64? */ int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*); #define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1 /* TODO: not like glibc; include in LP64? */ int pthread_cond_timeout_np(pthread_cond_t*, pthread_mutex_t*, unsigned); /* Like pthread_mutex_lock(), but will wait up to 'msecs' milli-seconds * before returning. Same return values as pthread_mutex_trylock though, i.e. * returns EBUSY if the lock could not be acquired after the timeout expired. * * TODO: replace with pthread_mutex_timedlock_np for LP64. */ int pthread_mutex_lock_timeout_np(pthread_mutex_t*, unsigned); #endif /* !defined(__LP64__) */ __END_DECLS #endif /* _PTHREAD_H_ */