Ginga  0.13.6
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Thread.h
1 /******************************************************************************
2 Este arquivo eh parte da implementacao do ambiente declarativo do middleware
3 Ginga (Ginga-NCL).
4 
5 Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia
6 
7 Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
8 os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
9 Software Foundation.
10 
11 Este programa eh distribuido na expectativa de que seja util, porem, SEM
12 NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
13 ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
14 GNU versao 2 para mais detalhes.
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17 com este programa; se nao, escreva para a Free Software Foundation, Inc., no
18 endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.
19 
20 Para maiores informacoes:
21 ncl @ telemidia.puc-rio.br
22 http://www.ncl.org.br
23 http://www.ginga.org.br
24 http://www.telemidia.puc-rio.br
25 ******************************************************************************
26 This file is part of the declarative environment of middleware Ginga (Ginga-NCL)
27 
28 Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.
29 
30 This program is free software; you can redistribute it and/or modify it under
31 the terms of the GNU General Public License version 2 as published by
32 the Free Software Foundation.
33 
34 This program is distributed in the hope that it will be useful, but WITHOUT ANY
35 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
36 PARTICULAR PURPOSE. See the GNU General Public License version 2 for more
37 details.
38 
39 You should have received a copy of the GNU General Public License version 2
40 along with this program; if not, write to the Free Software
41 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
42 
43 For further information contact:
44 ncl @ telemidia.puc-rio.br
45 http://www.ncl.org.br
46 http://www.ginga.org.br
47 http://www.telemidia.puc-rio.br
48 *******************************************************************************/
49 
50 #ifndef __THREAD_H__
51 #define __THREAD_H__
52 
53 #include "system/compat/SystemCompat.h"
54 using namespace ::br::pucrio::telemidia::ginga::core::system::compat;
55 
56 #include <errno.h>
57 #include <pthread.h>
58 
59 namespace br {
60 namespace pucrio {
61 namespace telemidia {
62 namespace ginga {
63 namespace core {
64 namespace system {
65 namespace thread {
66  class Thread {
67  protected:
68  bool isDeleting;
69 
70  pthread_mutex_t threadMutex;
71 
72  bool isThreadSleeping;
73  pthread_mutex_t threadFlagMutex;
74  pthread_cond_t threadFlagConditionVariable;
75 
76  bool isWaiting;
77  pthread_mutex_t threadFlagMutexLockUntilSignal;
78  pthread_cond_t threadFlagCVLockUntilSignal;
79 
80  private:
81  pthread_mutex_t threadIdMutex;
82 
83  pthread_attr_t tattr;
84 
85  protected:
86  virtual void run()=0;
87 
88  private:
89  pthread_t threadId_;
90  static void* function(void* ptr);
91 
92  public:
93  Thread();
94  virtual ~Thread();
95  virtual void startThread();
96  bool sleep(long int seconds);
97  bool mSleep(long int milliseconds);
98  void wakeUp();
99  void lock();
100  void unlock();
101  void waitForUnlockCondition();
102  bool unlockConditionSatisfied();
103 
104  /* Mutex functions*/
105  static void mutexInit(pthread_mutex_t* mutex, bool recursive=false);
106  static void mutexDestroy(pthread_mutex_t* mutex);
107  static void mutexLock(pthread_mutex_t* mutex);
108  static void mutexUnlock(pthread_mutex_t* mutex);
109 
110  /* Cond functions */
111  static void condInit(
112  pthread_cond_t* cond, const pthread_condattr_t * attr);
113 
114  static void condDestroy(pthread_cond_t* cond);
115  static void condWait(pthread_cond_t* cond, pthread_mutex_t* mutex);
116  static void condSignal(pthread_cond_t* cond);
117 
118  /* Create functions */
119  static void startNewThread(void* (*funcion) (void*), void* ptr);
120  };
121 }
122 }
123 }
124 }
125 }
126 }
127 }
128 
129 #endif //__THREAD_H__
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