Merge branchesHEADsvn2git-headmaster

- abstractions/tb
- externals/tb

1 files changed, 94 insertions, 0 deletions

diff --git a/sc4pd/headers/lang/VMGlobals.h b/sc4pd/headers/lang/VMGlobals.h
new file mode 100644
index 0000000..9b5f2e1
--- /dev/null
+++ b/sc4pd/headers/lang/VMGlobals.h
@@ -0,0 +1,94 @@
+/*
+	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
+