/* * 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 #include __BEGIN_DECLS #if defined(__clang__) #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wnullability-completeness" #endif 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 }; #define PTHREAD_MUTEX_INITIALIZER { { ((PTHREAD_MUTEX_NORMAL & 3) << 14) } } #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP { { ((PTHREAD_MUTEX_RECURSIVE & 3) << 14) } } #define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP { { ((PTHREAD_MUTEX_ERRORCHECK & 3) << 14) } } #define PTHREAD_COND_INITIALIZER { { 0 } } #define PTHREAD_RWLOCK_INITIALIZER { { 0 } } enum { PTHREAD_RWLOCK_PREFER_READER_NP = 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP = 1, }; #define PTHREAD_ONCE_INIT 0 #if __ANDROID_API__ >= __ANDROID_API_N__ #define PTHREAD_BARRIER_SERIAL_THREAD -1 #endif #if defined(__LP64__) #define PTHREAD_STACK_MIN (4 * PAGE_SIZE) #else #define PTHREAD_STACK_MIN (2 * PAGE_SIZE) #endif #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 int pthread_atfork(void (*)(void), void (*)(void), void (*)(void)) __INTRODUCED_IN(12); int pthread_attr_destroy(pthread_attr_t* _Nonnull); int pthread_attr_getdetachstate(const pthread_attr_t* _Nonnull, int* _Nonnull); int pthread_attr_getguardsize(const pthread_attr_t* _Nonnull, size_t* _Nonnull); int pthread_attr_getschedparam(const pthread_attr_t* _Nonnull, struct sched_param* _Nonnull); int pthread_attr_getschedpolicy(const pthread_attr_t* _Nonnull, int* _Nonnull); int pthread_attr_getscope(const pthread_attr_t* _Nonnull, int* _Nonnull); int pthread_attr_getstack(const pthread_attr_t* _Nonnull, void** _Nonnull, size_t* _Nonnull); int pthread_attr_getstacksize(const pthread_attr_t* _Nonnull, size_t* _Nonnull); int pthread_attr_init(pthread_attr_t* _Nonnull); int pthread_attr_setdetachstate(pthread_attr_t* _Nonnull, int); int pthread_attr_setguardsize(pthread_attr_t* _Nonnull, size_t); int pthread_attr_setschedparam(pthread_attr_t* _Nonnull, const struct sched_param* _Nonnull); int pthread_attr_setschedpolicy(pthread_attr_t* _Nonnull, int); int pthread_attr_setscope(pthread_attr_t* _Nonnull, int); int pthread_attr_setstack(pthread_attr_t* _Nonnull, void*, size_t); int pthread_attr_setstacksize(pthread_attr_t* _Nonnull, size_t); int pthread_condattr_destroy(pthread_condattr_t* _Nonnull); int pthread_condattr_getclock(const pthread_condattr_t* _Nonnull, clockid_t* _Nonnull) __INTRODUCED_IN(21); int pthread_condattr_getpshared(const pthread_condattr_t* _Nonnull, int* _Nonnull); int pthread_condattr_init(pthread_condattr_t* _Nonnull); int pthread_condattr_setclock(pthread_condattr_t* _Nonnull, clockid_t) __INTRODUCED_IN(21); int pthread_condattr_setpshared(pthread_condattr_t* _Nonnull, int); int pthread_cond_broadcast(pthread_cond_t* _Nonnull); int pthread_cond_destroy(pthread_cond_t* _Nonnull); int pthread_cond_init(pthread_cond_t* _Nonnull, const pthread_condattr_t*); int pthread_cond_signal(pthread_cond_t* _Nonnull); int pthread_cond_timedwait(pthread_cond_t* _Nonnull, pthread_mutex_t* _Nonnull, const struct timespec* _Nonnull); int pthread_cond_wait(pthread_cond_t* _Nonnull, pthread_mutex_t* _Nonnull); int pthread_create(pthread_t* _Nonnull, pthread_attr_t const*, void* (* _Nonnull start_routine)(void*), void*); 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); int pthread_getcpuclockid(pthread_t, clockid_t* _Nonnull); int pthread_getschedparam(pthread_t, int* _Nonnull, struct sched_param* _Nonnull); void* pthread_getspecific(pthread_key_t); pid_t pthread_gettid_np(pthread_t) __INTRODUCED_IN(21); int pthread_join(pthread_t, void**); int pthread_key_create(pthread_key_t* _Nonnull, void (*)(void*)); int pthread_key_delete(pthread_key_t); int pthread_mutexattr_destroy(pthread_mutexattr_t* _Nonnull); int pthread_mutexattr_getpshared(const pthread_mutexattr_t* _Nonnull, int* _Nonnull); int pthread_mutexattr_gettype(const pthread_mutexattr_t* _Nonnull, int* _Nonnull); int pthread_mutexattr_init(pthread_mutexattr_t* _Nonnull); int pthread_mutexattr_setpshared(pthread_mutexattr_t* _Nonnull, int); int pthread_mutexattr_settype(pthread_mutexattr_t* _Nonnull, int); int pthread_mutex_destroy(pthread_mutex_t* _Nonnull); int pthread_mutex_init(pthread_mutex_t* _Nonnull, const pthread_mutexattr_t*); int pthread_mutex_lock(pthread_mutex_t* _Nonnull); int pthread_mutex_timedlock(pthread_mutex_t* _Nonnull, const struct timespec* _Nonnull) __INTRODUCED_IN(21); int pthread_mutex_trylock(pthread_mutex_t* _Nonnull); int pthread_mutex_unlock(pthread_mutex_t* _Nonnull); #if defined(__LP32__) && __ANDROID_API__ < 21 /* * Cruft for supporting old API levels. Pre-L we didn't have the proper POSIX * APIs for things, but instead had some locally grown, artisan equivalents. * Keep exposing the old prototypes on old API levels so we don't regress * functionality. * * See the following bugs: * * https://github.com/android-ndk/ndk/issues/420 * * https://github.com/android-ndk/ndk/issues/423 * * https://stackoverflow.com/q/44580542/632035 */ int pthread_mutex_lock_timeout_np(pthread_mutex_t* mutex, unsigned msecs); int pthread_cond_timeout_np(pthread_cond_t* cond, pthread_mutex_t* mutex, unsigned msecs); int pthread_cond_timedwait_monotonic_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*); int pthread_cond_timedwait_relative_np(pthread_cond_t* cond, pthread_mutex_t* mutex, const struct timespec* reltime); #endif int pthread_once(pthread_once_t* _Nonnull, void (* _Nonnull init_routine)(void)); int pthread_rwlockattr_init(pthread_rwlockattr_t* _Nonnull); int pthread_rwlockattr_destroy(pthread_rwlockattr_t* _Nonnull); int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t* _Nonnull, int* _Nonnull); int pthread_rwlockattr_setpshared(pthread_rwlockattr_t* _Nonnull, int); int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t* _Nonnull, int* _Nonnull) __INTRODUCED_IN(23); int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t* _Nonnull, int) __INTRODUCED_IN(23); int pthread_rwlock_destroy(pthread_rwlock_t* _Nonnull); int pthread_rwlock_init(pthread_rwlock_t* _Nonnull, const pthread_rwlockattr_t*); int pthread_rwlock_rdlock(pthread_rwlock_t* _Nonnull); int pthread_rwlock_timedrdlock(pthread_rwlock_t* _Nonnull, const struct timespec* _Nonnull); int pthread_rwlock_timedwrlock(pthread_rwlock_t* _Nonnull, const struct timespec* _Nonnull); int pthread_rwlock_tryrdlock(pthread_rwlock_t* _Nonnull); int pthread_rwlock_trywrlock(pthread_rwlock_t* _Nonnull); int pthread_rwlock_unlock(pthread_rwlock_t* _Nonnull); int pthread_rwlock_wrlock(pthread_rwlock_t* _Nonnull); #if __ANDROID_API__ >= __ANDROID_API_N__ int pthread_barrierattr_init(pthread_barrierattr_t* _Nonnull attr) __INTRODUCED_IN(24); int pthread_barrierattr_destroy(pthread_barrierattr_t* _Nonnull attr) __INTRODUCED_IN(24); int pthread_barrierattr_getpshared(const pthread_barrierattr_t* _Nonnull attr, int* _Nonnull pshared) __INTRODUCED_IN(24); int pthread_barrierattr_setpshared(pthread_barrierattr_t* _Nonnull attr, int pshared) __INTRODUCED_IN(24); #endif #if __ANDROID_API__ >= __ANDROID_API_N__ int pthread_barrier_init(pthread_barrier_t* _Nonnull, const pthread_barrierattr_t*, unsigned) __INTRODUCED_IN(24); int pthread_barrier_destroy(pthread_barrier_t* _Nonnull) __INTRODUCED_IN(24); int pthread_barrier_wait(pthread_barrier_t* _Nonnull) __INTRODUCED_IN(24); #endif #if __ANDROID_API__ >= __ANDROID_API_N__ int pthread_spin_destroy(pthread_spinlock_t* _Nonnull) __INTRODUCED_IN(24); int pthread_spin_init(pthread_spinlock_t* _Nonnull, int) __INTRODUCED_IN(24); int pthread_spin_lock(pthread_spinlock_t* _Nonnull) __INTRODUCED_IN(24); int pthread_spin_trylock(pthread_spinlock_t* _Nonnull) __INTRODUCED_IN(24); int pthread_spin_unlock(pthread_spinlock_t* _Nonnull) __INTRODUCED_IN(24); #endif pthread_t pthread_self(void) __attribute_const__; #if defined(__USE_GNU) int pthread_getname_np(pthread_t, char* _Nonnull, size_t) __INTRODUCED_IN(26); #endif /* TODO: this should be __USE_GNU too. */ int pthread_setname_np(pthread_t, const char* _Nonnull); int pthread_setschedparam(pthread_t, int, const struct sched_param* _Nonnull); int pthread_setspecific(pthread_key_t, const void*); 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; void __pthread_cleanup_push(__pthread_cleanup_t* c, __pthread_cleanup_func_t, void*); 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(__clang__) #pragma clang diagnostic pop #endif __END_DECLS #endif /* _PTHREAD_H_ */