/**

 * vim: set ts=4 :

 * =============================================================================

 * SourcePawn

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * 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, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_SOURCEPAWN_VM_ENGINE_H_

#define _INCLUDE_SOURCEPAWN_VM_ENGINE_H_

#include "sp_vm_api.h"

#include "sp_vm_function.h"

class BaseContext;

class CContextTrace : public IContextTrace

{

public:

	CContextTrace(BaseRuntime *pRuntime, int err, const char *errstr, cell_t start_rp);

public:

	int GetErrorCode();

	const char *GetErrorString();

	bool DebugInfoAvailable();

	const char *GetCustomErrorString();

	bool GetTraceInfo(CallStackInfo *trace);

	void ResetTrace();

	const char *GetLastNative(uint32_t *index);

private:

	BaseRuntime *m_pRuntime;

	sp_context_t *m_ctx;

	int m_Error;

	const char *m_pMsg;

	cell_t m_StartRp;

	cell_t m_Level;

	IPluginDebugInfo *m_pDebug;

};

class SourcePawnEngine : public ISourcePawnEngine

{

public:

	SourcePawnEngine();

	~SourcePawnEngine();

public: //ISourcePawnEngine

	sp_plugin_t *LoadFromFilePointer(FILE *fp, int *err);

	sp_plugin_t *LoadFromMemory(void *base, sp_plugin_t *plugin, int *err);

	int FreeFromMemory(sp_plugin_t *plugin);

	void *BaseAlloc(size_t size);

	void BaseFree(void *memory);

	void *ExecAlloc(size_t size);

	void ExecFree(void *address);

	IDebugListener *SetDebugListener(IDebugListener *pListener);

	unsigned int GetContextCallCount();

	unsigned int GetEngineAPIVersion();

	void *AllocatePageMemory(size_t size);

	void SetReadWrite(void *ptr);

	void SetReadExecute(void *ptr);

	void SetReadWriteExecute(void *ptr);

	void FreePageMemory(void *ptr);

	const char *GetErrorString(int err);

	void ReportError(BaseRuntime *runtime, int err, const char *errstr, cell_t rp_start);

public: //Plugin function stuff

	CFunction *GetFunctionFromPool(funcid_t f, IPluginContext  *plugin);

	void ReleaseFunctionToPool(CFunction *func);

	IDebugListener *GetDebugHook();

private:

	IDebugListener *m_pDebugHook;

};

extern SourcePawnEngine g_engine1;

#endif //_INCLUDE_SOURCEPAWN_VM_ENGINE_H_