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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
Each virtual machine has a copy of VMGlobals, which contains the state of the virtual machine.
*/
#ifndef _VMGLOBALS_H_
#define _VMGLOBALS_H_
#include "PyrSlot.h"
#include "SC_AllocPool.h"
#include "SC_RGen.h"
const int kNumProcesses = 1;
const int kMainProcessID = 0;
typedef void (*FifoMsgFunc)(struct VMGlobals*, struct FifoMsg*);
struct FifoMsg {
FifoMsg() : func(0), dataPtr(0) { dataWord[0] = dataWord[1] = 0; }
void Perform(struct VMGlobals* g);
void Free(struct VMGlobals* g);
FifoMsgFunc func;
void* dataPtr;
long dataWord[2];
};
struct VMGlobals {
VMGlobals();
// global context
class AllocPool *allocPool;
struct PyrProcess *process;
class SymbolTable *symbolTable;
class PyrGC *gc; // garbage collector for this process
PyrSlot *classvars;
bool canCallOS;
// thread context
struct PyrThread *thread;
struct PyrMethod *method;
struct PyrBlock *block;
struct PyrFrame *frame;
struct PyrMethod *primitiveMethod;
unsigned char *ip; // current instruction pointer
PyrSlot *sp; // current stack ptr
PyrSlot *args;
PyrSlot receiver; // the receiver
PyrSlot result;
int numpop; // number of args to pop for primitive
long returnLevels;
long processID;
long primitiveIndex;
RGen *rgen;
// scratch context
long execMethod;
} ;
inline void FifoMsg::Perform(struct VMGlobals* g)
{
(func)(g, this);
}
inline void FifoMsg::Free(struct VMGlobals* g)
{
g->allocPool->Free(dataPtr);
}
extern VMGlobals gVMGlobals[kNumProcesses];
extern VMGlobals *gMainVMGlobals;
extern VMGlobals *gCompilingVMGlobals;
#endif
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