cec: make libudev optional. if libudev is not available on linux, adapter autodetecti...
[deb_libcec.git] / src / lib / platform / threads.h
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1#pragma once
2/*
3 * This file is part of the libCEC(R) library.
4 *
5 * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved.
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
b9187cc6 34#include "os-dependent.h"
5559c36e 35#include <stdint.h>
abbca718 36
b9187cc6 37namespace CEC
abbca718 38{
b9187cc6 39 class CMutex;
abbca718 40
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41 class CCondition
42 {
43 public:
44 CCondition(void);
45 virtual ~CCondition(void);
abbca718 46
5559c36e 47 void Broadcast(void);
b9187cc6 48 void Signal(void);
13fd6a66 49 bool Wait(CMutex *mutex, uint32_t iTimeout = 0);
25701fa6 50 static void Sleep(uint32_t iTimeout);
abbca718 51
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52 private:
53 pthread_cond_t m_cond;
54 };
abbca718 55
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56 class CMutex
57 {
58 public:
59 CMutex(void);
60 virtual ~CMutex(void);
abbca718 61
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62 bool TryLock(void);
63 bool Lock(void);
64 void Unlock(void);
abbca718 65
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66 pthread_mutex_t m_mutex;
67 };
abbca718 68
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69 class CLockObject
70 {
71 public:
13fd6a66 72 CLockObject(CMutex *mutex, bool bTryLock = false);
b9187cc6 73 ~CLockObject(void);
abbca718 74
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75 bool IsLocked(void) const { return m_bLocked; }
76 void Leave(void);
77 void Lock(void);
60fa4578 78
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79 private:
80 CMutex *m_mutex;
81 bool m_bLocked;
82 };
83
84 class CThread
85 {
86 public:
87 CThread(void);
88 virtual ~CThread(void);
60fa4578 89
b9187cc6 90 virtual bool IsRunning(void) const { return m_bRunning; }
13fd6a66 91 virtual bool CreateThread(bool bWait = true);
5559c36e 92 virtual bool StopThread(bool bWaitForExit = true);
13fd6a66 93 virtual bool IsStopped(void) const { return m_bStop; };
25701fa6 94 virtual bool Sleep(uint32_t iTimeout);
60fa4578 95
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96 static void *ThreadHandler(CThread *thread);
97 virtual void *Process(void) = 0;
60fa4578 98
b9187cc6 99 protected:
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100 CCondition m_threadCondition;
101
102 private:
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103 pthread_t m_thread;
104 CMutex m_threadMutex;
5559c36e 105 bool m_bStop;
13fd6a66 106 bool m_bRunning;
b9187cc6 107 };
60fa4578 108};