dvander@2545: /**
dvander@2545:  * vim: set ts=4 :
dvander@2545:  * =============================================================================
dvander@2545:  * SourceMod
dvander@2545:  * Copyright (C) 2004-2009 AlliedModders LLC.  All rights reserved.
dvander@2545:  * =============================================================================
dvander@2545:  *
dvander@2545:  * This program is free software; you can redistribute it and/or modify it under
dvander@2545:  * the terms of the GNU General Public License, version 3.0, as published by the
dvander@2545:  * Free Software Foundation.
dvander@2545:  * 
dvander@2545:  * This program is distributed in the hope that it will be useful, but WITHOUT
dvander@2545:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
dvander@2545:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
dvander@2545:  * details.
dvander@2545:  *
dvander@2545:  * You should have received a copy of the GNU General Public License along with
dvander@2545:  * this program.  If not, see <http://www.gnu.org/licenses/>.
dvander@2545:  *
dvander@2545:  * As a special exception, AlliedModders LLC gives you permission to link the
dvander@2545:  * code of this program (as well as its derivative works) to "Half-Life 2," the
dvander@2545:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
dvander@2545:  * by the Valve Corporation.  You must obey the GNU General Public License in
dvander@2545:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
dvander@2545:  * this exception to all derivative works.  AlliedModders LLC defines further
dvander@2545:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
dvander@2545:  * or <http://www.sourcemod.net/license.php>.
dvander@2545:  *
dvander@2545:  * Version: $Id$
dvander@2545:  */
dvander@2545: 
dvander@2545: #ifndef _INCLUDE_SOURCEMOD_NATIVE_INVOKER_H_
dvander@2545: #define _INCLUDE_SOURCEMOD_NATIVE_INVOKER_H_
dvander@2545: 
dvander@2545: #include "sm_globals.h"
dvander@2545: #include <INativeInvoker.h>
dvander@2545: 
dvander@2545: struct ParamInfo
dvander@2545: {
dvander@2545: 	int flags;			/* Copy-back flags */
dvander@2545: 	bool marked;		/* Whether this is marked as being used */
dvander@2545: 	cell_t local_addr;	/* Local address to free */
dvander@2545: 	cell_t *phys_addr;	/* Physical address of our copy */
dvander@2545: 	cell_t *orig_addr;	/* Original address to copy back to */
dvander@2545: 	ucell_t size;		/* Size of array in bytes */
dvander@2545: 	struct
dvander@2545: 	{
dvander@2545: 		bool is_sz;		/* is a string */
dvander@2545: 		int sz_flags;	/* has sz flags */
dvander@2545: 	} str;
dvander@2545: };
dvander@2545: 
dvander@2545: class NativeInvoker : public INativeInvoker
dvander@2545: {
dvander@2545: public:
dvander@2545: 	NativeInvoker();
dvander@2545: 	~NativeInvoker();
dvander@2545: public: /* ICallable */
dvander@2545: 	int PushCell(cell_t cell);
dvander@2545: 	int PushCellByRef(cell_t *cell, int flags=SM_PARAM_COPYBACK);
dvander@2545: 	int PushFloat(float number);
dvander@2545: 	int PushFloatByRef(float *number, int flags=SM_PARAM_COPYBACK);
dvander@2545: 	int PushArray(cell_t *inarray, unsigned int cells, int flags=0);
dvander@2545: 	int PushString(const char *string);
dvander@2545: 	int PushStringEx(char *buffer, size_t length, int sz_flags, int cp_flags);
dvander@2545: 	void Cancel();
dvander@2545: public: /* INativeInvoker */
dvander@2545: 	bool Start(IPluginContext *pContext, const char *name);
dvander@2545: 	int Invoke(cell_t *result);
dvander@2545: private:
dvander@2545: 	int _PushString(const char *string, int sz_flags, int cp_flags, size_t len);
dvander@2545: 	int SetError(int err);
dvander@2545: private:
dvander@2545: 	IPluginContext *pContext;
dvander@2545: 	SPVM_NATIVE_FUNC native;
dvander@2545: 	cell_t m_params[SP_MAX_EXEC_PARAMS];
dvander@2545: 	ParamInfo m_info[SP_MAX_EXEC_PARAMS];
dvander@2545: 	unsigned int m_curparam;
dvander@2545: 	int m_errorstate;
dvander@2545: };
dvander@2545: 
dvander@2545: class NativeInterface : 
dvander@2545: 	public INativeInterface,
dvander@2545: 	public SMGlobalClass
dvander@2545: {
dvander@2545: public: /* SMGlobalClass */
dvander@2545: 	void OnSourceModAllInitialized();
dvander@2545: public: /* SMInterface */
dvander@2545: 	unsigned int GetInterfaceVersion();
dvander@2545: 	const char *GetInterfaceName();
dvander@2545: public: /* INativeInvoker */
dvander@2545: 	IPluginRuntime *CreateRuntime(const char *name, size_t bytes);
dvander@2545: 	INativeInvoker *CreateInvoker();
dvander@2545: };
dvander@2545: 
dvander@2545: extern NativeInterface g_NInvoke;
dvander@2545: 
dvander@2545: #endif /* _INCLUDE_SOURCEMOD_NATIVE_INVOKER_H_ */