Commit | Line | Data |
---|---|---|
f00ff009 LOK |
1 | #pragma once |
2 | /* | |
3 | * This file is part of the libCEC(R) library. | |
4 | * | |
b492c10e | 5 | * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited. All rights reserved. |
f00ff009 LOK |
6 | * libCEC(R) is an original work, containing original code. |
7 | * | |
8 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
9 | * | |
10 | * This program is dual-licensed; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | * | |
24 | * | |
25 | * Alternatively, you can license this library under a commercial license, | |
26 | * please contact Pulse-Eight Licensing for more information. | |
27 | * | |
28 | * For more information contact: | |
29 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
30 | * http://www.pulse-eight.com/ | |
31 | * http://www.pulse-eight.net/ | |
32 | */ | |
33 | ||
34 | #include "mutex.h" | |
35 | ||
36 | namespace PLATFORM | |
37 | { | |
38 | class CThread | |
39 | { | |
40 | public: | |
41 | CThread(void) : | |
42 | m_bStop(false), | |
960f33c6 LOK |
43 | m_bRunning(false), |
44 | m_bStopped(false) {} | |
f00ff009 LOK |
45 | |
46 | virtual ~CThread(void) | |
47 | { | |
002fa4ea | 48 | StopThread(0); |
4f3d2262 LOK |
49 | void *retVal; |
50 | ThreadsWait(m_thread, &retVal); | |
f00ff009 LOK |
51 | } |
52 | ||
53 | static void *ThreadHandler(CThread *thread) | |
54 | { | |
55 | void *retVal = NULL; | |
56 | ||
57 | if (thread) | |
58 | { | |
960f33c6 LOK |
59 | { |
60 | CLockObject lock(thread->m_threadMutex); | |
61 | thread->m_bRunning = true; | |
62 | thread->m_bStopped = false; | |
63 | thread->m_threadCondition.Broadcast(); | |
64 | } | |
f00ff009 LOK |
65 | |
66 | retVal = thread->Process(); | |
67 | ||
960f33c6 LOK |
68 | { |
69 | CLockObject lock(thread->m_threadMutex); | |
70 | thread->m_bRunning = false; | |
71 | thread->m_bStopped = true; | |
72 | thread->m_threadCondition.Broadcast(); | |
73 | } | |
f00ff009 LOK |
74 | } |
75 | ||
76 | return retVal; | |
77 | } | |
78 | ||
c12ee8e6 | 79 | virtual bool IsRunning(void) |
f00ff009 LOK |
80 | { |
81 | CLockObject lock(m_threadMutex); | |
82 | return m_bRunning; | |
83 | } | |
84 | ||
c12ee8e6 | 85 | virtual bool IsStopped(void) |
f00ff009 LOK |
86 | { |
87 | CLockObject lock(m_threadMutex); | |
88 | return m_bStop; | |
89 | } | |
90 | ||
c12ee8e6 | 91 | virtual bool CreateThread(bool bWait = true) |
f00ff009 LOK |
92 | { |
93 | bool bReturn(false); | |
94 | CLockObject lock(m_threadMutex); | |
95 | if (!IsRunning()) | |
96 | { | |
4fe8d858 | 97 | m_bStop = false; |
f00ff009 LOK |
98 | if (ThreadsCreate(m_thread, CThread::ThreadHandler, ((void*)static_cast<CThread *>(this)))) |
99 | { | |
100 | if (bWait) | |
960f33c6 | 101 | m_threadCondition.Wait(m_threadMutex, m_bRunning); |
f00ff009 LOK |
102 | bReturn = true; |
103 | } | |
104 | } | |
105 | return bReturn; | |
106 | } | |
107 | ||
78d138bd LOK |
108 | /*! |
109 | * @brief Stop the thread | |
110 | * @param iWaitMs negative = don't wait, 0 = infinite, or the amount of ms to wait | |
111 | */ | |
112 | virtual bool StopThread(int iWaitMs = 5000) | |
f00ff009 LOK |
113 | { |
114 | bool bReturn(true); | |
115 | bool bRunning(false); | |
116 | { | |
117 | CLockObject lock(m_threadMutex); | |
118 | bRunning = IsRunning(); | |
119 | m_bStop = true; | |
f00ff009 LOK |
120 | } |
121 | ||
78d138bd | 122 | if (bRunning && iWaitMs >= 0) |
f00ff009 | 123 | { |
78d138bd LOK |
124 | CLockObject lock(m_threadMutex); |
125 | bReturn = m_threadCondition.Wait(m_threadMutex, m_bStopped, iWaitMs); | |
126 | } | |
127 | else | |
128 | { | |
129 | bReturn = true; | |
f00ff009 | 130 | } |
78d138bd LOK |
131 | |
132 | return bReturn; | |
f00ff009 LOK |
133 | } |
134 | ||
c12ee8e6 | 135 | virtual bool Sleep(uint32_t iTimeout) |
f00ff009 LOK |
136 | { |
137 | CLockObject lock(m_threadMutex); | |
960f33c6 | 138 | return m_bStop ? false : m_threadCondition.Wait(m_threadMutex, m_bStopped, iTimeout); |
f00ff009 LOK |
139 | } |
140 | ||
141 | virtual void *Process(void) = 0; | |
142 | ||
143 | protected: | |
144 | void SetRunning(bool bSetTo); | |
145 | ||
146 | private: | |
8f6e48cd LOK |
147 | bool m_bStop; |
148 | bool m_bRunning; | |
149 | bool m_bStopped; | |
150 | CCondition<bool> m_threadCondition; | |
151 | CMutex m_threadMutex; | |
152 | thread_t m_thread; | |
f00ff009 LOK |
153 | }; |
154 | }; |