JackExternalClient.cpp
/*
Copyright (C) 2001-2003 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 "JackExternalClient.h"
#include "JackClientControl.h"
#include "JackGlobals.h"
#include "JackChannel.h"
#include "JackError.h"
namespace Jack
{
JackExternalClient::JackExternalClient(): fClientControl(NULL)
{}
JackExternalClient::~JackExternalClient()
{}
int JackExternalClient::ClientNotify(int refnum, const char* name, int notify, int sync, const char* message, int value1, int value2)
{
int result = -1;
jack_log("JackExternalClient::ClientNotify ref = %ld client = %s name = %s notify = %ld", refnum, fClientControl->fName, name, notify);
fChannel.ClientNotify(refnum, name, notify, sync, message, value1, value2, &result);
return result;
}
int JackExternalClient::Open(const char* name, int pid, int refnum, int uuid, int* shared_client)
{
try {
if (fChannel.Open(name) < 0) {
jack_error("Cannot connect to client name = %s\n", name);
return -1;
}
// Use "placement new" to allocate object in shared memory
JackShmMemAble* shared_mem = static_cast<JackShmMemAble*>(JackShmMem::operator new(sizeof(JackClientControl)));
shared_mem->Init();
fClientControl = new(shared_mem) JackClientControl(name, pid, refnum, uuid);
if (!fClientControl) {
jack_error("Cannot allocate client shared memory segment");
return -1;
}
*shared_client = shared_mem->GetShmIndex();
jack_log("JackExternalClient::Open name = %s index = %ld base = %x", name, shared_mem->GetShmIndex(), shared_mem->GetShmAddress());
return 0;
} catch (std::exception e) {
return -1;
}
}
int JackExternalClient::Close()
{
jack_log("JackExternalClient::Close");
fChannel.Close();
if (fClientControl) {
fClientControl->~JackClientControl();
JackShmMem::operator delete(fClientControl);
}
return 0;
}
JackClientControl* JackExternalClient::GetClientControl() const
{
return fClientControl;
}
} // end of namespace
Jack
Definition: JackAC3Encoder.cpp:30
Jack::JackExternalClient::JackExternalClient
JackExternalClient()
Definition: JackExternalClient.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