/*************************************************************************/ /* semaphore_windows.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2017 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_windows.h" #if defined(WINDOWS_ENABLED) && !defined(WINRT_ENABLED) #include "os/memory.h" Error SemaphoreWindows::wait() { WaitForSingleObjectEx(semaphore, INFINITE, false); return OK; } Error SemaphoreWindows::post() { ReleaseSemaphore(semaphore, 1, NULL); return OK; } int SemaphoreWindows::get() const { long previous; switch (WaitForSingleObjectEx(semaphore, 0, false)) { case WAIT_OBJECT_0: { ERR_FAIL_COND_V(!ReleaseSemaphore(semaphore, 1, &previous), -1); return previous + 1; } break; case WAIT_TIMEOUT: { return 0; } break; default: {} } ERR_FAIL_V(-1); } Semaphore *SemaphoreWindows::create_semaphore_windows() { return memnew(SemaphoreWindows); } void SemaphoreWindows::make_default() { create_func = create_semaphore_windows; } SemaphoreWindows::SemaphoreWindows() { #ifdef WINRT_ENABLED semaphore = CreateSemaphoreEx( NULL, 0, 0xFFFFFFF, //wathever NULL, 0, SEMAPHORE_ALL_ACCESS); #else semaphore = CreateSemaphore( NULL, 0, 0xFFFFFFF, //wathever NULL); #endif } SemaphoreWindows::~SemaphoreWindows() { CloseHandle(semaphore); } #endif