windows/JackWinProcessSync.cpp

   1 /*
   2 Copyright (C) 2004-2006 Grame
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation; either version 2 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 General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "JackWinProcessSync.h"
  21 #include "JackError.h"
  22
  23 namespace Jack
  24 {
  25
  26 void JackWinProcessSync::Signal()
  27 {
  28     SetEvent(fEvent);
  29 }
  30
  31 void JackWinProcessSync::LockedSignal()
  32 {
  33     WaitForSingleObject(fMutex, INFINITE);
  34     SetEvent(fEvent);
  35     ReleaseMutex(fMutex);
  36 }
  37
  38 void JackWinProcessSync::SignalAll()
  39 {
  40     SetEvent(fEvent);
  41 }
  42
  43 void JackWinProcessSync::LockedSignalAll()
  44 {
  45     WaitForSingleObject(fMutex, INFINITE);
  46     SetEvent(fEvent);
  47     ReleaseMutex(fMutex);
  48 }
  49
  50 void JackWinProcessSync::Wait()
  51 {
  52     ReleaseMutex(fMutex);
  53         WaitForSingleObject(fEvent, INFINITE);
  54 }
  55
  56 void JackWinProcessSync::LockedWait()
  57 {
  58     /* Does it make sense on Windows, use non-locked version for now... */
  59         Wait();
  60 }
  61
  62 bool JackWinProcessSync::TimedWait(long usec)
  63 {
  64     ReleaseMutex(fMutex);
  65         DWORD res = WaitForSingleObject(fEvent, usec / 1000);
  66         return (res == WAIT_OBJECT_0);
  67 }
  68
  69 bool JackWinProcessSync::LockedTimedWait(long usec)
  70 {
  71     /* Does it make sense on Windows, use non-locked version for now...*/
  72     return TimedWait(usec);
  73 }
  74
  75 /*
  76 Code from CAGuard.cpp : does ot sees to work as expected..
  77
  78 void JackWinProcessSync::Wait()
  79 {
  80     ReleaseMutex(fMutex);
  81         HANDLE handles[] = { fMutex, fEvent };
  82         DWORD res = WaitForMultipleObjects(2, handles, true, INFINITE);
  83         if ((res != WAIT_OBJECT_0) && (res != WAIT_TIMEOUT))
  84         jack_error("Wait error err = %d", GetLastError());
  85     ResetEvent(fEvent);
  86 }
  87
  88 void JackWinProcessSync::LockedWait()
  89 {
  90     WaitForSingleObject(fMutex, INFINITE);
  91     ReleaseMutex(fMutex);
  92         HANDLE handles[] = { fMutex, fEvent };
  93         DWORD res = WaitForMultipleObjects(2, handles, true, INFINITE);
  94         if ((res != WAIT_OBJECT_0) && (res != WAIT_TIMEOUT))
  95         jack_error("LockedWait error err = %d", GetLastError());
  96     ResetEvent(fEvent);
  97 }
  98
  99 bool JackWinProcessSync::TimedWait(long usec)
 100 {
 101         ReleaseMutex(fMutex);
 102         HANDLE handles[] = { fMutex, fEvent };
 103         DWORD res = WaitForMultipleObjects(2, handles, true, usec / 1000);
 104         if ((res != WAIT_OBJECT_0) && (res != WAIT_TIMEOUT))
 105         jack_error("Wait error err = %d", GetLastError());
 106     ResetEvent(fEvent);
 107 }
 108
 109 bool JackWinProcessSync::LockedTimedWait(long usec)
 110 {
 111     WaitForSingleObject(fMutex, INFINITE);
 112     ReleaseMutex(fMutex);
 113     HANDLE handles[] = { fMutex, fEvent };
 114         DWORD res = WaitForMultipleObjects(2, handles, true, usec / 1000);
 115     if ((res != WAIT_OBJECT_0) && (res != WAIT_TIMEOUT))
 116         jack_error("LockedTimedWait error err = %d", GetLastError());
 117     ResetEvent(fEvent);
 118         return (res == WAIT_OBJECT_0);
 119 }
 120 */
 121
 122 } // end of namespace
 123
 124
 125