1/* Copyright (c) 2013-2015 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#ifndef POSIX_THREADING_H
  7#define POSIX_THREADING_H
  8
  9#include <mgba-util/common.h>
 10
 11CXX_GUARD_START
 12
 13#include <pthread.h>
 14#include <sys/time.h>
 15#if defined(__FreeBSD__) || defined(__OpenBSD__)
 16#include <pthread_np.h>
 17#elif defined(__HAIKU__)
 18#include <OS.h>
 19#endif
 20
 21#define THREAD_ENTRY void*
 22typedef THREAD_ENTRY (*ThreadEntry)(void*);
 23
 24typedef pthread_t Thread;
 25typedef pthread_mutex_t Mutex;
 26typedef pthread_cond_t Condition;
 27
 28static inline int MutexInit(Mutex* mutex) {
 29	return pthread_mutex_init(mutex, 0);
 30}
 31
 32static inline int MutexDeinit(Mutex* mutex) {
 33	return pthread_mutex_destroy(mutex);
 34}
 35
 36static inline int MutexLock(Mutex* mutex) {
 37	return pthread_mutex_lock(mutex);
 38}
 39
 40static inline int MutexTryLock(Mutex* mutex) {
 41	return pthread_mutex_trylock(mutex);
 42}
 43
 44static inline int MutexUnlock(Mutex* mutex) {
 45	return pthread_mutex_unlock(mutex);
 46}
 47
 48static inline int ConditionInit(Condition* cond) {
 49	return pthread_cond_init(cond, 0);
 50}
 51
 52static inline int ConditionDeinit(Condition* cond) {
 53	return pthread_cond_destroy(cond);
 54}
 55
 56static inline int ConditionWait(Condition* cond, Mutex* mutex) {
 57	return pthread_cond_wait(cond, mutex);
 58}
 59
 60static inline int ConditionWaitTimed(Condition* cond, Mutex* mutex, int32_t timeoutMs) {
 61	struct timespec ts;
 62	struct timeval tv;
 63
 64	gettimeofday(&tv, 0);
 65	ts.tv_sec = tv.tv_sec;
 66	ts.tv_nsec = (tv.tv_usec + timeoutMs * 1000L) * 1000L;
 67	if (ts.tv_nsec >= 1000000000L) {
 68		ts.tv_nsec -= 1000000000L;
 69		++ts.tv_sec;
 70	}
 71
 72	return pthread_cond_timedwait(cond, mutex, &ts);
 73}
 74
 75static inline int ConditionWake(Condition* cond) {
 76	return pthread_cond_broadcast(cond);
 77}
 78
 79static inline int ThreadCreate(Thread* thread, ThreadEntry entry, void* context) {
 80	return pthread_create(thread, 0, entry, context);
 81}
 82
 83static inline int ThreadJoin(Thread thread) {
 84	return pthread_join(thread, 0);
 85}
 86
 87static inline int ThreadSetName(const char* name) {
 88#ifdef __APPLE__
 89	return pthread_setname_np(name);
 90#elif defined(__FreeBSD__) || defined(__OpenBSD__)
 91	pthread_set_name_np(pthread_self(), name);
 92	return 0;
 93#elif defined(__HAIKU__)
 94	rename_thread(find_thread(NULL), name);
 95	return 0;
 96#elif !defined(BUILD_PANDORA) // Pandora's glibc is too old
 97	return pthread_setname_np(pthread_self(), name);
 98#else
 99	UNUSED(name);
100	return 0;
101#endif
102}
103
104CXX_GUARD_END
105
106#endif