Commit | Line | Data |
---|---|---|
abbca718 LOK |
1 | /* |
2 | * This file is part of the libCEC(R) library. | |
3 | * | |
4 | * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved. | |
5 | * libCEC(R) is an original work, containing original code. | |
6 | * | |
7 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
8 | * | |
9 | * This program is dual-licensed; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | * | |
23 | * | |
24 | * Alternatively, you can license this library under a commercial license, | |
25 | * please contact Pulse-Eight Licensing for more information. | |
26 | * | |
27 | * For more information contact: | |
28 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
29 | * http://www.pulse-eight.com/ | |
30 | * http://www.pulse-eight.net/ | |
31 | */ | |
32 | ||
33 | #include "threads.h" | |
34 | #include "timeutils.h" | |
35 | ||
36 | CMutex::CMutex(void) | |
37 | { | |
38 | pthread_mutex_init(&m_mutex, NULL); | |
abbca718 LOK |
39 | } |
40 | ||
41 | CMutex::~CMutex(void) | |
42 | { | |
abbca718 LOK |
43 | pthread_mutex_destroy(&m_mutex); |
44 | } | |
45 | ||
60fa4578 | 46 | bool CMutex::TryLock(void) |
abbca718 | 47 | { |
60fa4578 | 48 | return (pthread_mutex_trylock(&m_mutex) == 0); |
abbca718 LOK |
49 | } |
50 | ||
51 | bool CMutex::Lock(void) | |
52 | { | |
60fa4578 | 53 | return (pthread_mutex_lock(&m_mutex) == 0); |
abbca718 LOK |
54 | } |
55 | ||
56 | void CMutex::Unlock(void) | |
57 | { | |
58 | pthread_mutex_unlock(&m_mutex); | |
abbca718 LOK |
59 | } |
60 | ||
60fa4578 LOK |
61 | CLockObject::CLockObject(CMutex *mutex) : |
62 | m_mutex(mutex) | |
abbca718 | 63 | { |
60fa4578 | 64 | m_mutex->Lock(); |
abbca718 LOK |
65 | } |
66 | ||
67 | CLockObject::~CLockObject(void) | |
a8f0bd18 LOK |
68 | { |
69 | Leave(); | |
70 | m_mutex = NULL; | |
71 | } | |
72 | ||
73 | void CLockObject::Leave(void) | |
abbca718 LOK |
74 | { |
75 | m_mutex->Unlock(); | |
a8f0bd18 LOK |
76 | } |
77 | ||
78 | void CLockObject::Lock(void) | |
79 | { | |
80 | m_mutex->Lock(); | |
abbca718 LOK |
81 | } |
82 | ||
83 | CCondition::CCondition(void) | |
84 | { | |
85 | pthread_cond_init(&m_cond, NULL); | |
abbca718 LOK |
86 | } |
87 | ||
88 | CCondition::~CCondition(void) | |
89 | { | |
90 | pthread_cond_broadcast(&m_cond); | |
91 | pthread_cond_destroy(&m_cond); | |
92 | } | |
93 | ||
94 | void CCondition::Signal(void) | |
95 | { | |
96 | pthread_cond_broadcast(&m_cond); | |
97 | } | |
98 | ||
99 | bool CCondition::Wait(CMutex *mutex, int64_t iTimeout) | |
100 | { | |
60fa4578 | 101 | bool bReturn(false); |
abbca718 LOK |
102 | struct timespec abstime; |
103 | struct timeval now; | |
104 | if (gettimeofday(&now, NULL) == 0) | |
105 | { | |
106 | iTimeout += now.tv_usec / 1000; | |
107 | abstime.tv_sec = now.tv_sec + (time_t)(iTimeout / 1000); | |
108 | abstime.tv_nsec = (long)((iTimeout % (unsigned long)1000) * (unsigned long)1000000); | |
60fa4578 | 109 | bReturn = (pthread_cond_timedwait(&m_cond, &mutex->m_mutex, &abstime) == 0); |
abbca718 LOK |
110 | } |
111 | ||
abbca718 LOK |
112 | return bReturn; |
113 | } | |
114 | ||
115 | void CCondition::Sleep(int iTimeout) | |
116 | { | |
117 | sched_yield(); | |
118 | CCondition w; | |
119 | CMutex m; | |
60fa4578 | 120 | CLockObject lock(&m); |
abbca718 LOK |
121 | w.Wait(&m, iTimeout); |
122 | } | |
60fa4578 LOK |
123 | |
124 | CThread::CThread(void) : | |
125 | m_bRunning(false), | |
126 | m_bStop(false) | |
127 | { | |
128 | } | |
129 | ||
130 | CThread::~CThread(void) | |
131 | { | |
132 | m_bStop = true; | |
133 | pthread_join(m_thread, NULL); | |
134 | } | |
135 | ||
136 | bool CThread::CreateThread(void) | |
137 | { | |
138 | bool bReturn(false); | |
139 | ||
140 | if (!m_bRunning && pthread_create(&m_thread, NULL, (void *(*) (void *))&CThread::ThreadHandler, (void *)this) == 0) | |
141 | { | |
142 | m_bRunning = true; | |
143 | pthread_detach(m_thread); | |
144 | bReturn = true; | |
145 | } | |
146 | ||
147 | return bReturn; | |
148 | } | |
149 | ||
150 | void *CThread::ThreadHandler(CThread *thread) | |
151 | { | |
152 | if (thread) | |
153 | return thread->Process(); | |
154 | return NULL; | |
155 | } | |
156 | ||
9043a357 | 157 | void CThread::StopThread(bool bWaitForExit /* = true */) |
60fa4578 LOK |
158 | { |
159 | m_bStop = true; | |
160 | if (bWaitForExit) | |
161 | pthread_join(m_thread, NULL); | |
162 | } |