1 | //======================================================================== |
2 | // GLFW 3.4 POSIX - www.glfw.org |
3 | //------------------------------------------------------------------------ |
4 | // Copyright (c) 2002-2006 Marcus Geelnard |
5 | // Copyright (c) 2006-2017 Camilla Löwy <[email protected]> |
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 | // It is fine to use C99 in this file because it will not be built with VS |
28 | //======================================================================== |
29 | |
30 | #include "internal.h" |
31 | |
32 | #include <assert.h> |
33 | #include <string.h> |
34 | |
35 | |
36 | ////////////////////////////////////////////////////////////////////////// |
37 | ////// GLFW platform API ////// |
38 | ////////////////////////////////////////////////////////////////////////// |
39 | |
40 | GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls) |
41 | { |
42 | assert(tls->posix.allocated == GLFW_FALSE); |
43 | |
44 | if (pthread_key_create(&tls->posix.key, NULL) != 0) |
45 | { |
46 | _glfwInputError(GLFW_PLATFORM_ERROR, |
47 | "POSIX: Failed to create context TLS" ); |
48 | return GLFW_FALSE; |
49 | } |
50 | |
51 | tls->posix.allocated = GLFW_TRUE; |
52 | return GLFW_TRUE; |
53 | } |
54 | |
55 | void _glfwPlatformDestroyTls(_GLFWtls* tls) |
56 | { |
57 | if (tls->posix.allocated) |
58 | pthread_key_delete(tls->posix.key); |
59 | memset(tls, 0, sizeof(_GLFWtls)); |
60 | } |
61 | |
62 | void* _glfwPlatformGetTls(_GLFWtls* tls) |
63 | { |
64 | assert(tls->posix.allocated == GLFW_TRUE); |
65 | return pthread_getspecific(tls->posix.key); |
66 | } |
67 | |
68 | void _glfwPlatformSetTls(_GLFWtls* tls, void* value) |
69 | { |
70 | assert(tls->posix.allocated == GLFW_TRUE); |
71 | pthread_setspecific(tls->posix.key, value); |
72 | } |
73 | |
74 | GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex) |
75 | { |
76 | assert(mutex->posix.allocated == GLFW_FALSE); |
77 | |
78 | if (pthread_mutex_init(&mutex->posix.handle, NULL) != 0) |
79 | { |
80 | _glfwInputError(GLFW_PLATFORM_ERROR, "POSIX: Failed to create mutex" ); |
81 | return GLFW_FALSE; |
82 | } |
83 | |
84 | return mutex->posix.allocated = GLFW_TRUE; |
85 | } |
86 | |
87 | void _glfwPlatformDestroyMutex(_GLFWmutex* mutex) |
88 | { |
89 | if (mutex->posix.allocated) |
90 | pthread_mutex_destroy(&mutex->posix.handle); |
91 | memset(mutex, 0, sizeof(_GLFWmutex)); |
92 | } |
93 | |
94 | void _glfwPlatformLockMutex(_GLFWmutex* mutex) |
95 | { |
96 | assert(mutex->posix.allocated == GLFW_TRUE); |
97 | pthread_mutex_lock(&mutex->posix.handle); |
98 | } |
99 | |
100 | void _glfwPlatformUnlockMutex(_GLFWmutex* mutex) |
101 | { |
102 | assert(mutex->posix.allocated == GLFW_TRUE); |
103 | pthread_mutex_unlock(&mutex->posix.handle); |
104 | } |
105 | |
106 | |