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Diffstat (limited to 'platform/iphone/semaphore_iphone.cpp')
-rw-r--r--platform/iphone/semaphore_iphone.cpp112
1 files changed, 112 insertions, 0 deletions
diff --git a/platform/iphone/semaphore_iphone.cpp b/platform/iphone/semaphore_iphone.cpp
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+++ b/platform/iphone/semaphore_iphone.cpp
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+/*************************************************************************/
+/* semaphore_iphone.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
+/* */
+/* 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 "semaphore_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 "core/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);
+}