d4c602f022
updated sdk bases for most extensions --HG-- extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401232
113 lines
3.0 KiB
C++
113 lines
3.0 KiB
C++
/**
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* vim: set ts=4 :
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* ================================================================
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* SourceMod BinTools Extension
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* Copyright (C) 2004-2007 AlliedModders LLC. All rights reserved.
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* ================================================================
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License,
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* version 3.0, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* As a special exception, AlliedModders LLC gives you permission to
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* link the code of this program (as well as its derivative works) to
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* "Half-Life 2," the "Source Engine," the "SourcePawn JIT," and any
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* Game MODs that run on software by the Valve Corporation. You must
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* obey the GNU General Public License in all respects for all other
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* code used. Additionally, AlliedModders LLC grants this exception
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* to all derivative works. AlliedModders LLC defines further
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* exceptions, found in LICENSE.txt (as of this writing, version
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* JULY-31-2007), or <http://www.sourcemod.net/license.php>.
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*
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* Version: $Id$
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*/
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#include "extension.h"
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#include "CallWrapper.h"
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CallWrapper::CallWrapper(CallConvention cv, const PassInfo *paramInfo, const PassInfo *retInfo, unsigned int numParams)
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{
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m_Cv = cv;
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if (numParams)
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{
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m_Params = new PassEncode[numParams];
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for (size_t i=0; i<numParams; i++)
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{
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m_Params[i].info = paramInfo[i];
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}
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} else {
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m_Params = NULL;
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}
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if (retInfo)
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{
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m_RetParam = new PassInfo;
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*m_RetParam = *retInfo;
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} else {
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m_RetParam = NULL;
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}
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m_NumParams = numParams;
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/* Calculate virtual stack offsets for each parameter */
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size_t offs = 0;
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if (cv == CallConv_ThisCall)
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{
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offs += sizeof(void *);
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}
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for (size_t i=0; i<numParams; i++)
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{
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m_Params[i].offset = offs;
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offs += m_Params[i].info.size;
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}
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}
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CallWrapper::~CallWrapper()
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{
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delete [] m_Params;
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delete m_RetParam;
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g_SPEngine->ExecFree(m_Addrs[ADDR_CODEBASE]);
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}
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void CallWrapper::Destroy()
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{
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delete this;
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}
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CallConvention CallWrapper::GetCallConvention()
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{
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return m_Cv;
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}
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const PassEncode *CallWrapper::GetParamInfo(unsigned int num)
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{
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return (num+1 > m_NumParams) ? NULL : &m_Params[num];
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}
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const PassInfo *CallWrapper::GetReturnInfo()
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{
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return m_RetParam;
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}
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unsigned int CallWrapper::GetParamCount()
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{
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return m_NumParams;
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}
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void CallWrapper::Execute(void *vParamStack, void *retBuffer)
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{
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typedef void (*CALL_EXECUTE)(void *, void *);
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CALL_EXECUTE fn = (CALL_EXECUTE)m_Addrs[ADDR_CODEBASE];
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fn(vParamStack, retBuffer);
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}
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