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/*
* Copyright (C) 2019 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.
*/
#pragma once
#include <threads.h>
#include <errno.h>
#include <sched.h>
#include <stdlib.h>
#if defined(__BIONIC_THREADS_INLINE)
__BEGIN_DECLS
static __inline int __bionic_thrd_error(int __pthread_code) {
switch (__pthread_code) {
case 0: return 0;
case ENOMEM: return thrd_nomem;
case ETIMEDOUT: return thrd_timedout;
case EBUSY: return thrd_busy;
default: return thrd_error;
}
}
__BIONIC_THREADS_INLINE void call_once(once_flag* _Nonnull __flag,
void (* _Nonnull __function)(void)) {
pthread_once(__flag, __function);
}
__BIONIC_THREADS_INLINE int cnd_broadcast(cnd_t* _Nonnull __cnd) {
return __bionic_thrd_error(pthread_cond_broadcast(__cnd));
}
__BIONIC_THREADS_INLINE void cnd_destroy(cnd_t* _Nonnull __cnd) {
pthread_cond_destroy(__cnd);
}
__BIONIC_THREADS_INLINE int cnd_init(cnd_t* _Nonnull __cnd) {
return __bionic_thrd_error(pthread_cond_init(__cnd, NULL));
}
__BIONIC_THREADS_INLINE int cnd_signal(cnd_t* _Nonnull __cnd) {
return __bionic_thrd_error(pthread_cond_signal(__cnd));
}
__BIONIC_THREADS_INLINE int cnd_timedwait(cnd_t* _Nonnull __cnd,
mtx_t* _Nonnull __mtx,
const struct timespec* _Nullable __timeout) {
return __bionic_thrd_error(pthread_cond_timedwait(__cnd, __mtx, __timeout));
}
__BIONIC_THREADS_INLINE int cnd_wait(cnd_t* _Nonnull __cnd, mtx_t* _Nonnull __mtx) {
return __bionic_thrd_error(pthread_cond_wait(__cnd, __mtx));
}
__BIONIC_THREADS_INLINE void mtx_destroy(mtx_t* _Nonnull __mtx) {
pthread_mutex_destroy(__mtx);
}
__BIONIC_THREADS_INLINE int mtx_init(mtx_t* _Nonnull __mtx, int __type) {
int __pthread_type = (__type & mtx_recursive) ? PTHREAD_MUTEX_RECURSIVE
: PTHREAD_MUTEX_NORMAL;
__type &= ~mtx_recursive;
if (__type != mtx_plain && __type != mtx_timed) return thrd_error;
pthread_mutexattr_t __attr;
pthread_mutexattr_init(&__attr);
pthread_mutexattr_settype(&__attr, __pthread_type);
return __bionic_thrd_error(pthread_mutex_init(__mtx, &__attr));
}
__BIONIC_THREADS_INLINE int mtx_lock(mtx_t* _Nonnull __mtx) {
return __bionic_thrd_error(pthread_mutex_lock(__mtx));
}
__BIONIC_THREADS_INLINE int mtx_timedlock(mtx_t* _Nonnull __mtx,
const struct timespec* _Nullable __timeout) {
return __bionic_thrd_error(pthread_mutex_timedlock(__mtx, __timeout));
}
__BIONIC_THREADS_INLINE int mtx_trylock(mtx_t* _Nonnull __mtx) {
return __bionic_thrd_error(pthread_mutex_trylock(__mtx));
}
__BIONIC_THREADS_INLINE int mtx_unlock(mtx_t* _Nonnull __mtx) {
return __bionic_thrd_error(pthread_mutex_unlock(__mtx));
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wnullability-completeness"
struct __bionic_thrd_data {
thrd_start_t __func;
void* __arg;
};
#pragma clang diagnostic pop
static inline void* _Nonnull __bionic_thrd_trampoline(void* _Nonnull __arg) {
struct __bionic_thrd_data __data =
*__BIONIC_CAST(static_cast, struct __bionic_thrd_data*, __arg);
free(__arg);
int __result = __data.__func(__data.__arg);
return __BIONIC_CAST(reinterpret_cast, void*,
__BIONIC_CAST(static_cast, uintptr_t, __result));
}
__BIONIC_THREADS_INLINE int thrd_create(thrd_t* _Nonnull __thrd,
thrd_start_t _Nonnull __func,
void* _Nullable __arg) {
struct __bionic_thrd_data* __pthread_arg =
__BIONIC_CAST(static_cast, struct __bionic_thrd_data*,
malloc(sizeof(struct __bionic_thrd_data)));
__pthread_arg->__func = __func;
__pthread_arg->__arg = __arg;
int __result = __bionic_thrd_error(pthread_create(__thrd, NULL,
__bionic_thrd_trampoline,
__pthread_arg));
if (__result != thrd_success) free(__pthread_arg);
return __result;
}
__BIONIC_THREADS_INLINE thrd_t thrd_current(void) {
return pthread_self();
}
__BIONIC_THREADS_INLINE int thrd_detach(thrd_t __thrd) {
return __bionic_thrd_error(pthread_detach(__thrd));
}
__BIONIC_THREADS_INLINE int thrd_equal(thrd_t __lhs, thrd_t __rhs) {
return pthread_equal(__lhs, __rhs);
}
__BIONIC_THREADS_INLINE void thrd_exit(int __result) {
pthread_exit(__BIONIC_CAST(reinterpret_cast, void*,
__BIONIC_CAST(static_cast, uintptr_t, __result)));
}
__BIONIC_THREADS_INLINE int thrd_join(thrd_t __thrd, int* _Nullable __result) {
void* __pthread_result;
if (pthread_join(__thrd, &__pthread_result) != 0) return thrd_error;
if (__result) {
*__result = __BIONIC_CAST(reinterpret_cast, intptr_t, __pthread_result);
}
return thrd_success;
}
__BIONIC_THREADS_INLINE int thrd_sleep(const struct timespec* _Nonnull __duration,
struct timespec* _Nullable __remaining) {
int __rc = nanosleep(__duration, __remaining);
if (__rc == 0) return 0;
return (errno == EINTR) ? -1 : -2;
}
__BIONIC_THREADS_INLINE void thrd_yield(void) {
sched_yield();
}
__BIONIC_THREADS_INLINE int tss_create(tss_t* _Nonnull __key, tss_dtor_t _Nullable __dtor) {
return __bionic_thrd_error(pthread_key_create(__key, __dtor));
}
__BIONIC_THREADS_INLINE void tss_delete(tss_t __key) {
pthread_key_delete(__key);
}
__BIONIC_THREADS_INLINE void* _Nullable tss_get(tss_t __key) {
return pthread_getspecific(__key);
}
__BIONIC_THREADS_INLINE int tss_set(tss_t __key, void* _Nonnull __value) {
return __bionic_thrd_error(pthread_setspecific(__key, __value));
}
__END_DECLS
#endif // __BIONIC_THREADS_INLINE
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