JackFreewheelDriver.cpp
/*
Copyright (C) 2001 Paul Davis
Copyright (C) 2004-2008 Grame
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "JackSystemDeps.h"
#include "JackFreewheelDriver.h"
#include "JackEngineControl.h"
#include "JackLockedEngine.h"
namespace Jack
{
// When used in "master" mode
int JackFreewheelDriver::Process()
{
jack_log("JackFreewheelDriver::Process master %lld", fEngineControl->fTimeOutUsecs);
JackDriver::CycleTakeBeginTime();
if (fEngine->Process(fBeginDateUst, fEndDateUst)) {
// Resume connected clients in the graph
if (ResumeRefNum() < 0) {
jack_error("JackFreewheelDriver::Process: ResumeRefNum error");
}
// Special "SuspendRefNum" with longer timeout
if (SuspendRefNum() < 0) { // Wait for all clients to finish for FREEWHEEL_DRIVER_TIMEOUT sec
jack_error("JackFreewheelDriver::Process: SuspendRefNum error");
}
} else { // Graph not finished: do not activate it
jack_error("JackFreewheelDriver::Process: Process error");
}
return 0;
}
// When used in "slave" mode
int JackFreewheelDriver::ProcessReadSync()
{
// Resume connected clients in the graph
if (ResumeRefNum() < 0) { // Signal all clients
jack_error("JackFreewheelDriver::ProcessReadSync: ResumeRefNum error");
return -1;
}
return 0;
}
int JackFreewheelDriver::ProcessWriteSync()
{
// Generic "SuspendRefNum" here
if (JackDriver::SuspendRefNum() < 0) {
jack_error("JackFreewheelDriver::ProcessSync: SuspendRefNum error");
return -1;
}
return 0;
}
int JackFreewheelDriver::ProcessReadAsync()
{
// Resume connected clients in the graph
if (ResumeRefNum() < 0) { // Signal all clients
jack_error("JackFreewheelDriver::ProcessReadAsync: ResumeRefNum error");
return -1;
}
return 0;
}
int JackFreewheelDriver::ProcessWriteAsync()
{
return 0;
}
int JackFreewheelDriver::SuspendRefNum()
{
return fGraphManager->SuspendRefNum(&fClientControl, fSynchroTable, FREEWHEEL_DRIVER_TIMEOUT * 1000000);
}
} // end of namespace
Jack
Definition: JackAC3Encoder.cpp:30
jack_error
SERVER_EXPORT void jack_error(const char *fmt,...)
Definition: JackError.cpp:92
jack_log
SERVER_EXPORT void jack_log(const char *fmt,...)
Definition: JackError.cpp:108