Jack2  1.9.9
JackPosixSemaphore.h
1 /*
2 Copyright (C) 2004-2008 Grame
3 
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8 
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13 
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 
18 */
19 
20 #ifndef __JackPosixSemaphore__
21 #define __JackPosixSemaphore__
22 
23 #include "JackSynchro.h"
24 #include "JackCompilerDeps.h"
25 #include <semaphore.h>
26 #include <time.h>
27 #include <assert.h>
28 
29 namespace Jack
30 {
31 
36 class SERVER_EXPORT JackPosixSemaphore : public detail::JackSynchro
37 {
38 
39  private:
40 
41  sem_t* fSemaphore;
42 
43  protected:
44 
45  void BuildName(const char* name, const char* server_name, char* res, int size);
46 
47  public:
48 
49  JackPosixSemaphore():JackSynchro(), fSemaphore(NULL)
50  {}
51 
52  bool Signal();
53  bool SignalAll();
54  bool Wait();
55  bool TimedWait(long usec);
56 
57  bool Allocate(const char* name, const char* server_name, int value);
58  bool Connect(const char* name, const char* server_name);
59  bool ConnectInput(const char* name, const char* server_name);
60  bool ConnectOutput(const char* name, const char* server_name);
61  bool Disconnect();
62  void Destroy();
63 };
64 
65 } // end of namespace
66 
67 
68 #endif
69 
Inter process synchronization using using Mach semaphore.
Inter process synchronization using POSIX semaphore.
An inter process synchronization primitive.
Definition: JackSynchro.h:35