JackFreewheelDriver.cpp

00001 /*
00002  Copyright (C) 2001 Paul Davis 
00003  Copyright (C) 2004-2006 Grame
00004 
00005  This program is free software; you can redistribute it and/or modify
00006  it under the terms of the GNU General Public License as published by
00007  the Free Software Foundation; either version 2 of the License, or
00008  (at your option) any later version.
00009 
00010  This program is distributed in the hope that it will be useful,
00011  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  GNU General Public License for more details.
00014 
00015  You should have received a copy of the GNU General Public License
00016  along with this program; if not, write to the Free Software
00017  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 
00019 */
00020 
00021 #ifdef WIN32 
00022 #pragma warning (disable : 4786)
00023 #endif
00024 
00025 #include "JackFreewheelDriver.h"
00026 #include "JackEngineControl.h"
00027 #include "JackEngine.h"
00028 
00029 namespace Jack
00030 {
00031 
00032 int JackFreewheelDriver::Process()
00033 {
00034     if (fIsMaster) {
00035         JackLog("JackFreewheelDriver::Process master %lld\n", fEngineControl->fTimeOutUsecs);
00036         fLastWaitUst = GetMicroSeconds();
00037         fEngine->Process(fLastWaitUst);
00038         fGraphManager->ResumeRefNum(fClientControl, fSynchroTable); // Signal all clients
00039         if (fGraphManager->SuspendRefNum(fClientControl, fSynchroTable, fEngineControl->fTimeOutUsecs * 20) < 0) // Wait for all clients to finish
00040             jack_error("JackFreewheelDriver::ProcessSync SuspendRefNum error");
00041     } else {
00042         fGraphManager->ResumeRefNum(fClientControl, fSynchroTable); // Signal all clients
00043         if (fEngineControl->fSyncMode) {
00044             if (fGraphManager->SuspendRefNum(fClientControl, fSynchroTable, fEngineControl->fTimeOutUsecs) < 0) {
00045                 jack_error("JackFreewheelDriver::ProcessSync SuspendRefNum error");
00046                                 return -1;                      
00047                         }
00048         }
00049     }
00050     return 0;
00051 }
00052 
00053 } // end of namespace

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