Jack2  1.9.9
JackMachSemaphore.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 __JackMachSemaphore__
21 #define __JackMachSemaphore__
22 
23 #include "JackCompilerDeps.h"
24 #include "JackSynchro.h"
25 #include <mach/mach.h>
26 #include <servers/bootstrap.h>
27 #include <mach/semaphore.h>
28 
29 namespace Jack
30 {
31 
36 class SERVER_EXPORT JackMachSemaphore : public detail::JackSynchro
37 {
38 
39  private:
40 
41  semaphore_t fSemaphore;
42  mach_port_t fBootPort;
43 
44  protected:
45 
46  void BuildName(const char* name, const char* server_name, char* res, int size);
47 
48  public:
49 
50  JackMachSemaphore():JackSynchro(), fSemaphore(0), fBootPort(0)
51  {}
52 
53  bool Signal();
54  bool SignalAll();
55  bool Wait();
56  bool TimedWait(long usec);
57 
58  bool Allocate(const char* name, const char* server_name, int value);
59  bool Connect(const char* name, const char* server_name);
60  bool ConnectInput(const char* name, const char* server_name);
61  bool ConnectOutput(const char* name, const char* server_name);
62  bool Disconnect();
63  void Destroy();
64 };
65 
66 
67 } // end of namespace
68 
69 
70 #endif
71 
Inter process synchronization using using Mach semaphore.
An inter process synchronization primitive.
Definition: JackSynchro.h:35