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/*
Copyright (C) 2005 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.
*/
#ifndef __JackLibGlobals__
#define __JackLibGlobals__
#include "JackShmMem.h"
#include "JackEngineControl.h"
#ifdef __APPLE__
#include "JackMachPort.h"
#include <map>
#endif
#include "JackGlobals.h"
#include "JackGraphManager.h"
#include "JackTime.h"
#include <assert.h>
namespace Jack
{
class JackClient;
/*!
\brief Global library static structure: singleton kind of pattern.
*/
struct JackLibGlobals
{
JackShmReadWritePtr<JackGraphManager> fGraphManager; /*! Shared memory Port manager */
JackShmReadWritePtr<JackEngineControl> fEngineControl; /*! Shared engine control */ // transport engine has to be writable
JackSynchro* fSynchroTable[CLIENT_NUM]; /*! Shared synchro table */
#ifdef __APPLE__
std::map<mach_port_t, JackClient*> fClientTable; /*! Client table */
#endif
static long fClientCount;
static JackLibGlobals* fGlobals;
JackLibGlobals()
{
JackLog("JackLibGlobals\n");
for (int i = 0; i < CLIENT_NUM; i++)
fSynchroTable[i] = JackGlobals::MakeSynchro();
fGraphManager = -1;
fEngineControl = -1;
}
virtual ~JackLibGlobals()
{
JackLog("~JackLibGlobals\n");
for (int i = 0; i < CLIENT_NUM; i++) {
fSynchroTable[i]->Disconnect();
delete fSynchroTable[i];
}
}
static void Init()
{
if (fClientCount++ == 0 && !fGlobals) {
JackLog("JackLibGlobals Init %x\n", fGlobals);
JackGlobals::InitClient();
InitTime();
fGlobals = new JackLibGlobals();
}
}
static void Destroy()
{
if (--fClientCount == 0 && fGlobals) {
JackLog("JackLibGlobals Destroy %x\n", fGlobals);
delete fGlobals;
fGlobals = NULL;
JackGlobals::Destroy();
}
}
static void CheckContext()
{
if (!(fClientCount > 0 && fGlobals)) {
jack_error("Error !!! : client accessing an already desallocated library context");
}
}
};
} // end of namespace
#endif
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