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Diffstat (limited to '3rdparty/SDL2/src/thread/pthread/SDL_syssem.c')
-rw-r--r--3rdparty/SDL2/src/thread/pthread/SDL_syssem.c209
1 files changed, 0 insertions, 209 deletions
diff --git a/3rdparty/SDL2/src/thread/pthread/SDL_syssem.c b/3rdparty/SDL2/src/thread/pthread/SDL_syssem.c
deleted file mode 100644
index b7547e699ca..00000000000
--- a/3rdparty/SDL2/src/thread/pthread/SDL_syssem.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../../SDL_internal.h"
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#include <errno.h>
-#include <pthread.h>
-#include <semaphore.h>
-#include <sys/time.h>
-#include <time.h>
-
-#include "SDL_thread.h"
-#include "SDL_timer.h"
-
-/* Wrapper around POSIX 1003.1b semaphores */
-
-#if defined(__MACOSX__) || defined(__IPHONEOS__)
-/* Mac OS X doesn't support sem_getvalue() as of version 10.4 */
-#include "../generic/SDL_syssem.c"
-#else
-
-struct SDL_semaphore
-{
- sem_t sem;
-};
-
-/* Create a semaphore, initialized with value */
-SDL_sem *
-SDL_CreateSemaphore(Uint32 initial_value)
-{
- SDL_sem *sem = (SDL_sem *) SDL_malloc(sizeof(SDL_sem));
- if (sem) {
- if (sem_init(&sem->sem, 0, initial_value) < 0) {
- SDL_SetError("sem_init() failed");
- SDL_free(sem);
- sem = NULL;
- }
- } else {
- SDL_OutOfMemory();
- }
- return sem;
-}
-
-void
-SDL_DestroySemaphore(SDL_sem * sem)
-{
- if (sem) {
- sem_destroy(&sem->sem);
- SDL_free(sem);
- }
-}
-
-int
-SDL_SemTryWait(SDL_sem * sem)
-{
- int retval;
-
- if (!sem) {
- return SDL_SetError("Passed a NULL semaphore");
- }
- retval = SDL_MUTEX_TIMEDOUT;
- if (sem_trywait(&sem->sem) == 0) {
- retval = 0;
- }
- return retval;
-}
-
-int
-SDL_SemWait(SDL_sem * sem)
-{
- int retval;
-
- if (!sem) {
- return SDL_SetError("Passed a NULL semaphore");
- }
-
- retval = sem_wait(&sem->sem);
- if (retval < 0) {
- retval = SDL_SetError("sem_wait() failed");
- }
- return retval;
-}
-
-int
-SDL_SemWaitTimeout(SDL_sem * sem, Uint32 timeout)
-{
- int retval;
-#ifdef HAVE_SEM_TIMEDWAIT
-#ifndef HAVE_CLOCK_GETTIME
- struct timeval now;
-#endif
- struct timespec ts_timeout;
-#else
- Uint32 end;
-#endif
-
- if (!sem) {
- return SDL_SetError("Passed a NULL semaphore");
- }
-
- /* Try the easy cases first */
- if (timeout == 0) {
- return SDL_SemTryWait(sem);
- }
- if (timeout == SDL_MUTEX_MAXWAIT) {
- return SDL_SemWait(sem);
- }
-
-#ifdef HAVE_SEM_TIMEDWAIT
- /* Setup the timeout. sem_timedwait doesn't wait for
- * a lapse of time, but until we reach a certain time.
- * This time is now plus the timeout.
- */
-#ifdef HAVE_CLOCK_GETTIME
- clock_gettime(CLOCK_REALTIME, &ts_timeout);
-
- /* Add our timeout to current time */
- ts_timeout.tv_nsec += (timeout % 1000) * 1000000;
- ts_timeout.tv_sec += timeout / 1000;
-#else
- gettimeofday(&now, NULL);
-
- /* Add our timeout to current time */
- ts_timeout.tv_sec = now.tv_sec + (timeout / 1000);
- ts_timeout.tv_nsec = (now.tv_usec + (timeout % 1000) * 1000) * 1000;
-#endif
-
- /* Wrap the second if needed */
- if (ts_timeout.tv_nsec > 1000000000) {
- ts_timeout.tv_sec += 1;
- ts_timeout.tv_nsec -= 1000000000;
- }
-
- /* Wait. */
- do {
- retval = sem_timedwait(&sem->sem, &ts_timeout);
- } while (retval < 0 && errno == EINTR);
-
- if (retval < 0) {
- if (errno == ETIMEDOUT) {
- retval = SDL_MUTEX_TIMEDOUT;
- } else {
- SDL_SetError("sem_timedwait returned an error: %s", strerror(errno));
- }
- }
-#else
- end = SDL_GetTicks() + timeout;
- while ((retval = SDL_SemTryWait(sem)) == SDL_MUTEX_TIMEDOUT) {
- if (SDL_TICKS_PASSED(SDL_GetTicks(), end)) {
- break;
- }
- SDL_Delay(1);
- }
-#endif /* HAVE_SEM_TIMEDWAIT */
-
- return retval;
-}
-
-Uint32
-SDL_SemValue(SDL_sem * sem)
-{
- int ret = 0;
- if (sem) {
- sem_getvalue(&sem->sem, &ret);
- if (ret < 0) {
- ret = 0;
- }
- }
- return (Uint32) ret;
-}
-
-int
-SDL_SemPost(SDL_sem * sem)
-{
- int retval;
-
- if (!sem) {
- return SDL_SetError("Passed a NULL semaphore");
- }
-
- retval = sem_post(&sem->sem);
- if (retval < 0) {
- SDL_SetError("sem_post() failed");
- }
- return retval;
-}
-
-#endif /* __MACOSX__ */
-/* vi: set ts=4 sw=4 expandtab: */