dvander@371: /**
dvander@371:  * ================================================================
dvander@371:  * SourcePawn (C)2004-2007 AlliedModders LLC.  All rights reserved.
dvander@371:  * ================================================================
dvander@371:  *
dvander@371:  * This file is not open source and may not be copied without explicit
dvander@371:  * written permission of AlliedModders LLC.  This file may not be redistributed 
dvander@371:  * in whole or significant part.
dvander@371:  * For information, see LICENSE.txt or http://www.sourcemod.net/license.php
dvander@371:  *
dvander@371:  * Version: $Id$
dvander@371:  */
dvander@371: 
dvander@159: #ifndef _INCLUDE_SOURCEPAWN_VM_ENGINE_H_
dvander@159: #define _INCLUDE_SOURCEPAWN_VM_ENGINE_H_
dvander@159: 
dvander@159: #include "sp_vm_api.h"
dvander@327: #include "sp_vm_function.h"
dvander@159: 
dvander@327: struct TracedCall
dvander@159: {
dvander@327: 	uint32_t cip;
dvander@327: 	uint32_t frm;
dvander@327: 	sp_context_t *ctx;
dvander@327: 	TracedCall *next;
dvander@327: 	unsigned int chain;
dvander@327: };
dvander@240: 
dvander@240: 
dvander@327: class CContextTrace : public IContextTrace
dvander@327: {
dvander@327: public:
dvander@327: 	CContextTrace(TracedCall *pStart, int error, const char *msg, uint32_t native);
dvander@327: public:
dvander@327: 	virtual int GetErrorCode();
dvander@327: 	virtual const char *GetErrorString();
dvander@327: 	virtual bool DebugInfoAvailable();
dvander@327: 	virtual const char *GetCustomErrorString();
dvander@327: 	virtual bool GetTraceInfo(CallStackInfo *trace);
dvander@327: 	virtual void ResetTrace();
dvander@327: 	virtual const char *GetLastNative(uint32_t *index);
dvander@327: private:
dvander@351: 	int m_Error;
dvander@351: 	const char *m_pMsg;
dvander@327: 	TracedCall *m_pStart;
dvander@327: 	TracedCall *m_pIterator;
dvander@327: 	uint32_t m_Native;
dvander@327: };
dvander@240: 
dvander@240: 
dvander@327: class SourcePawnEngine : public ISourcePawnEngine
dvander@327: {
dvander@327: public:
dvander@327: 	SourcePawnEngine();
dvander@327: 	~SourcePawnEngine();
dvander@327: public: //ISourcePawnEngine
dvander@327: 	sp_plugin_t *LoadFromFilePointer(FILE *fp, int *err);
dvander@327: 	sp_plugin_t *LoadFromMemory(void *base, sp_plugin_t *plugin, int *err);
dvander@327: 	int FreeFromMemory(sp_plugin_t *plugin);
dvander@327: 	IPluginContext *CreateBaseContext(sp_context_t *ctx);
dvander@327: 	void FreeBaseContext(IPluginContext *ctx);
dvander@327: 	void *BaseAlloc(size_t size);
dvander@327: 	void BaseFree(void *memory);
dvander@327: 	void *ExecAlloc(size_t size);
dvander@327: 	void ExecFree(void *address);
dvander@327: 	IDebugListener *SetDebugListener(IDebugListener *pListener);
dvander@327: 	unsigned int GetContextCallCount();
dvander@327: public: //Debugger Stuff
dvander@327: 	/**
dvander@327: 	 * @brief Pushes a context onto the top of the call tracer.
dvander@327: 	 * 
dvander@327: 	 * @param ctx		Plugin context.
dvander@327: 	 */
dvander@327: 	void PushTracer(sp_context_t *ctx);
dvander@159: 
dvander@327: 	/**
dvander@327: 	 * @brief Pops a plugin off the call tracer.
dvander@327: 	 */
dvander@327: 	void PopTracer(int error, const char *msg);
dvander@159: 
dvander@327: 	/**
dvander@327: 	 * @brief Runs tracer from a debug break.
dvander@327: 	 */
dvander@327: 	void RunTracer(sp_context_t *ctx, uint32_t frame, uint32_t codeip);
dvander@327: public: //Plugin function stuff
dvander@327: 	CFunction *GetFunctionFromPool(funcid_t f, IPluginContext  *plugin);
dvander@327: 	void ReleaseFunctionToPool(CFunction *func);
dvander@327: private:
dvander@327: 	TracedCall *MakeTracedCall(bool new_chain);
dvander@327: 	void FreeTracedCall(TracedCall *pCall);
dvander@327: private:
dvander@327: 	IDebugListener *m_pDebugHook;
dvander@327: 	TracedCall *m_FreedCalls;
dvander@327: 	TracedCall *m_CallStack;
dvander@327: 	unsigned int m_CurChain;
dvander@327: 	//CFunction *m_pFreeFuncs;
dvander@159: };
dvander@159: 
dvander@159: #endif //_INCLUDE_SOURCEPAWN_VM_ENGINE_H_