1/*
2 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_THREAD_POSIX_H_
12#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_THREAD_POSIX_H_
13
14#include "thread_wrapper.h"
15#include <pthread.h>
16
17namespace webrtc {
18
19class CriticalSectionWrapper;
20class EventWrapper;
21
22class ThreadPosix : public ThreadWrapper
23{
24public:
25    static ThreadWrapper* Create(ThreadRunFunction func, ThreadObj obj,
26                                 ThreadPriority prio, const char* threadName);
27
28    ThreadPosix(ThreadRunFunction func, ThreadObj obj, ThreadPriority prio,
29                const char* threadName);
30    ~ThreadPosix();
31
32    // From ThreadWrapper
33    virtual void SetNotAlive();
34    virtual bool Start(unsigned int& id);
35    // Not implemented on Mac
36    virtual bool SetAffinity(const int* processorNumbers,
37                             unsigned int amountOfProcessors);
38    virtual bool Stop();
39    virtual bool Shutdown();
40
41    void Run();
42
43private:
44    int Construct();
45
46private:
47    // processing function
48    ThreadRunFunction   _runFunction;
49    ThreadObj           _obj;
50
51    // internal state
52    CriticalSectionWrapper* _crit_state;  // Protects _alive and _dead
53    bool                    _alive;
54    bool                    _dead;
55    ThreadPriority          _prio;
56    EventWrapper*           _event;
57
58    // zero-terminated thread name string
59    char                    _name[kThreadMaxNameLength];
60    bool                    _setThreadName;
61
62    // handle to thread
63#if (defined(WEBRTC_LINUX) || defined(WEBRTC_ANDROID))
64    pid_t                   _pid;
65#endif
66    pthread_attr_t          _attr;
67    pthread_t               _thread;
68};
69} // namespace webrtc
70
71#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_THREAD_POSIX_H_
72