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/*************************************************************************/
/* sem_iphone.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "sem_iphone.h"
#include <fcntl.h>
#include <unistd.h>
void cgsem_init(cgsem_t *);
void cgsem_post(cgsem_t *);
void cgsem_wait(cgsem_t *);
void cgsem_destroy(cgsem_t *);
void cgsem_init(cgsem_t *cgsem) {
int flags, fd, i;
pipe(cgsem->pipefd);
/* Make the pipes FD_CLOEXEC to allow them to close should we call
* execv on restart. */
for (i = 0; i < 2; i++) {
fd = cgsem->pipefd[i];
flags = fcntl(fd, F_GETFD, 0);
flags |= FD_CLOEXEC;
fcntl(fd, F_SETFD, flags);
}
}
void cgsem_post(cgsem_t *cgsem) {
const char buf = 1;
write(cgsem->pipefd[1], &buf, 1);
}
void cgsem_wait(cgsem_t *cgsem) {
char buf;
read(cgsem->pipefd[0], &buf, 1);
}
void cgsem_destroy(cgsem_t *cgsem) {
close(cgsem->pipefd[1]);
close(cgsem->pipefd[0]);
}
#include "os/memory.h"
#include <errno.h>
Error SemaphoreIphone::wait() {
cgsem_wait(&sem);
return OK;
}
Error SemaphoreIphone::post() {
cgsem_post(&sem);
return OK;
}
int SemaphoreIphone::get() const {
return 0;
}
Semaphore *SemaphoreIphone::create_semaphore_iphone() {
return memnew(SemaphoreIphone);
}
void SemaphoreIphone::make_default() {
create_func = create_semaphore_iphone;
}
SemaphoreIphone::SemaphoreIphone() {
cgsem_init(&sem);
}
SemaphoreIphone::~SemaphoreIphone() {
cgsem_destroy(&sem);
}
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