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72b9787e | 1 | /***************************************************************************** |
72b9787e JB |
2 | * Copyright (C) 2013 x265 project |
3 | * | |
4 | * Authors: Steve Borho <steve@borho.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. | |
19 | * | |
20 | * This program is also available under a commercial proprietary license. | |
21 | * For more information, contact us at license @ x265.com | |
22 | *****************************************************************************/ | |
23 | ||
24 | #include "threading.h" | |
25 | ||
26 | namespace x265 { | |
27 | // x265 private namespace | |
28 | ||
29 | /* C shim for forced stack alignment */ | |
30 | static void stackAlignMain(Thread *instance) | |
31 | { | |
32 | instance->threadMain(); | |
33 | } | |
34 | ||
35 | #if _WIN32 | |
36 | ||
37 | static DWORD WINAPI ThreadShim(Thread *instance) | |
38 | { | |
39 | // defer processing to the virtual function implemented in the derived class | |
40 | x265_stack_align(stackAlignMain, instance); | |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
45 | bool Thread::start() | |
46 | { | |
47 | DWORD threadId; | |
48 | ||
b53f7c52 | 49 | thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)ThreadShim, this, 0, &threadId); |
72b9787e JB |
50 | |
51 | return threadId > 0; | |
52 | } | |
53 | ||
54 | void Thread::stop() | |
55 | { | |
b53f7c52 JB |
56 | if (thread) |
57 | WaitForSingleObject(thread, INFINITE); | |
72b9787e JB |
58 | } |
59 | ||
60 | Thread::~Thread() | |
61 | { | |
b53f7c52 JB |
62 | if (thread) |
63 | CloseHandle(thread); | |
72b9787e JB |
64 | } |
65 | ||
66 | #else /* POSIX / pthreads */ | |
67 | ||
68 | static void *ThreadShim(void *opaque) | |
69 | { | |
70 | // defer processing to the virtual function implemented in the derived class | |
71 | Thread *instance = reinterpret_cast<Thread *>(opaque); | |
72 | ||
73 | x265_stack_align(stackAlignMain, instance); | |
74 | ||
75 | return NULL; | |
76 | } | |
77 | ||
78 | bool Thread::start() | |
79 | { | |
b53f7c52 | 80 | if (pthread_create(&thread, NULL, ThreadShim, this)) |
72b9787e | 81 | { |
b53f7c52 | 82 | thread = 0; |
72b9787e JB |
83 | return false; |
84 | } | |
85 | ||
86 | return true; | |
87 | } | |
88 | ||
89 | void Thread::stop() | |
90 | { | |
b53f7c52 JB |
91 | if (thread) |
92 | pthread_join(thread, NULL); | |
72b9787e JB |
93 | } |
94 | ||
95 | Thread::~Thread() {} | |
96 | ||
97 | #endif // if _WIN32 | |
98 | ||
99 | Thread::Thread() | |
100 | { | |
b53f7c52 | 101 | thread = 0; |
72b9787e | 102 | } |
b53f7c52 | 103 | |
72b9787e | 104 | } |