1//======================================================================== 2// GLFW 3.5 Win32 - www.glfw.org 3//------------------------------------------------------------------------ 4// Copyright (c) 2002-2006 Marcus Geelnard 5// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org> 6// 7// This software is provided 'as-is', without any express or implied 8// warranty. In no event will the authors be held liable for any damages 9// arising from the use of this software. 10// 11// Permission is granted to anyone to use this software for any purpose, 12// including commercial applications, and to alter it and redistribute it 13// freely, subject to the following restrictions: 14// 15// 1. The origin of this software must not be misrepresented; you must not 16// claim that you wrote the original software. If you use this software 17// in a product, an acknowledgment in the product documentation would 18// be appreciated but is not required. 19// 20// 2. Altered source versions must be plainly marked as such, and must not 21// be misrepresented as being the original software. 22// 23// 3. This notice may not be removed or altered from any source 24// distribution. 25// 26//======================================================================== 27 28#include "internal.h" 29 30#if defined(GLFW_BUILD_WIN32_THREAD) 31 32#include <assert.h> 33 34 35////////////////////////////////////////////////////////////////////////// 36////// GLFW platform API ////// 37////////////////////////////////////////////////////////////////////////// 38 39GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls) 40{ 41 assert(tls->win32.allocated == GLFW_FALSE); 42 43 tls->win32.index = TlsAlloc(); 44 if (tls->win32.index == TLS_OUT_OF_INDEXES) 45 { 46 _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to allocate TLS index"); 47 return GLFW_FALSE; 48 } 49 50 tls->win32.allocated = GLFW_TRUE; 51 return GLFW_TRUE; 52} 53 54void _glfwPlatformDestroyTls(_GLFWtls* tls) 55{ 56 if (tls->win32.allocated) 57 TlsFree(tls->win32.index); 58 memset(tls, 0, sizeof(_GLFWtls)); 59} 60 61void* _glfwPlatformGetTls(_GLFWtls* tls) 62{ 63 assert(tls->win32.allocated == GLFW_TRUE); 64 return TlsGetValue(tls->win32.index); 65} 66 67void _glfwPlatformSetTls(_GLFWtls* tls, void* value) 68{ 69 assert(tls->win32.allocated == GLFW_TRUE); 70 TlsSetValue(tls->win32.index, value); 71} 72 73GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex) 74{ 75 assert(mutex->win32.allocated == GLFW_FALSE); 76 InitializeCriticalSection(&mutex->win32.section); 77 return mutex->win32.allocated = GLFW_TRUE; 78} 79 80void _glfwPlatformDestroyMutex(_GLFWmutex* mutex) 81{ 82 if (mutex->win32.allocated) 83 DeleteCriticalSection(&mutex->win32.section); 84 memset(mutex, 0, sizeof(_GLFWmutex)); 85} 86 87void _glfwPlatformLockMutex(_GLFWmutex* mutex) 88{ 89 assert(mutex->win32.allocated == GLFW_TRUE); 90 EnterCriticalSection(&mutex->win32.section); 91} 92 93void _glfwPlatformUnlockMutex(_GLFWmutex* mutex) 94{ 95 assert(mutex->win32.allocated == GLFW_TRUE); 96 LeaveCriticalSection(&mutex->win32.section); 97} 98 99#endif // GLFW_BUILD_WIN32_THREAD 100 101