616 lines
16 KiB
C++
616 lines
16 KiB
C++
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/**
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* vim: set ts=4 :
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* =============================================================================
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* SourceMod
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* Copyright (C) 2004-2008 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 modify it under
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* the terms of the GNU General Public License, version 3.0, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* 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 link the
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* code of this program (as well as its derivative works) to "Half-Life 2," the
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* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
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* by the Valve Corporation. You must obey the GNU General Public License in
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* all respects for all other code used. Additionally, AlliedModders LLC grants
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* this exception to all derivative works. AlliedModders LLC defines further
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* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
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* 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 "sm_globals.h"
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#include "PluginSys.h"
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#include "ForwardSys.h"
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#include "HandleSys.h"
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HandleType_t g_GlobalFwdType = 0;
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HandleType_t g_PrivateFwdType = 0;
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static bool s_CallStarted = false;
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static ICallable *s_pCallable = NULL;
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static IPluginFunction *s_pFunction = NULL;
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static IForward *s_pForward = NULL;
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class ForwardNativeHelpers :
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public SMGlobalClass,
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public IHandleTypeDispatch
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{
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public:
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void OnSourceModAllInitialized()
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{
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HandleAccess sec;
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/* Set GlobalFwd handle access security */
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g_HandleSys.InitAccessDefaults(NULL, &sec);
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sec.access[HandleAccess_Read] = 0;
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sec.access[HandleAccess_Clone] = HANDLE_RESTRICT_IDENTITY | HANDLE_RESTRICT_OWNER;
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/* Create 'GlobalFwd' handle type */
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g_GlobalFwdType = g_HandleSys.CreateType("GlobalFwd", this, 0, NULL, &sec, g_pCoreIdent, NULL);
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/* Private forwards are cloneable */
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sec.access[HandleAccess_Clone] = 0;
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/* Create 'PrivateFwd' handle type */
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g_PrivateFwdType = g_HandleSys.CreateType("PrivateFwd", this, g_GlobalFwdType, NULL, &sec, g_pCoreIdent, NULL);
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}
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void OnSourceModShutdown()
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{
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g_HandleSys.RemoveType(g_PrivateFwdType, g_pCoreIdent);
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g_HandleSys.RemoveType(g_GlobalFwdType, g_pCoreIdent);
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}
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void OnHandleDestroy(HandleType_t type, void *object)
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{
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IForward *pForward = static_cast<IForward *>(object);
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g_Forwards.ReleaseForward(pForward);
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}
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bool GetHandleApproxSize(HandleType_t type, void *object, unsigned int *pSize)
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{
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*pSize = sizeof(CForward) + (((IForward *)object)->GetFunctionCount() * 12);
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return true;
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}
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} g_ForwardNativeHelpers;
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/* Turn a public index into a function ID */
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inline funcid_t PublicIndexToFuncId(uint32_t idx)
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{
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return (idx << 1) | (1 << 0);
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}
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/* Reset global function/forward call variables */
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inline void ResetCall()
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{
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s_CallStarted = false;
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s_pFunction = NULL;
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s_pForward = NULL;
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s_pCallable = NULL;
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}
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static cell_t sm_GetFunctionByName(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t hndl = static_cast<Handle_t>(params[1]);
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HandleError err;
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char *name;
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uint32_t idx;
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IPlugin *pPlugin;
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if (hndl == 0)
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{
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pPlugin = g_PluginSys.FindPluginByContext(pContext->GetContext());
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} else {
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pPlugin = g_PluginSys.PluginFromHandle(hndl, &err);
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if (!pPlugin)
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{
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return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", hndl, err);
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}
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}
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pContext->LocalToString(params[2], &name);
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/* Get public function index */
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if (pPlugin->GetBaseContext()->FindPublicByName(name, &idx) == SP_ERROR_NOT_FOUND)
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{
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/* Return INVALID_FUNCTION if not found */
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return -1;
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}
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/* Return function ID */
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return PublicIndexToFuncId(idx);
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}
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static cell_t sm_CreateGlobalForward(IPluginContext *pContext, const cell_t *params)
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{
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cell_t count = params[0];
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char *name;
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ParamType forwardParams[SP_MAX_EXEC_PARAMS];
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if (count - 2 > SP_MAX_EXEC_PARAMS)
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{
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return pContext->ThrowNativeErrorEx(SP_ERROR_PARAMS_MAX, NULL);
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}
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pContext->LocalToString(params[1], &name);
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cell_t *addr;
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for (int i = 3; i <= count; i++)
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{
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pContext->LocalToPhysAddr(params[i], &addr);
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forwardParams[i - 3] = static_cast<ParamType>(*addr);
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}
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IForward *pForward = g_Forwards.CreateForward(name, static_cast<ExecType>(params[2]), count - 2, forwardParams);
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return g_HandleSys.CreateHandle(g_GlobalFwdType, pForward, pContext->GetIdentity(), g_pCoreIdent, NULL);
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}
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static cell_t sm_CreateForward(IPluginContext *pContext, const cell_t *params)
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{
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cell_t count = params[0];
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ParamType forwardParams[SP_MAX_EXEC_PARAMS];
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if (count - 1 > SP_MAX_EXEC_PARAMS)
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{
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return pContext->ThrowNativeErrorEx(SP_ERROR_PARAMS_MAX, NULL);
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}
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cell_t *addr;
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for (int i = 2; i <= count; i++)
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{
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pContext->LocalToPhysAddr(params[i], &addr);
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forwardParams[i - 2] = static_cast<ParamType>(*addr);
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}
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IChangeableForward *pForward = g_Forwards.CreateForwardEx(NULL, static_cast<ExecType>(params[1]), count - 1, forwardParams);
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return g_HandleSys.CreateHandle(g_PrivateFwdType, pForward, pContext->GetIdentity(), g_pCoreIdent, NULL);
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}
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static cell_t sm_GetForwardFunctionCount(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t hndl = static_cast<Handle_t>(params[1]);
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HandleError err;
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IForward *pForward;
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if ((err=g_HandleSys.ReadHandle(hndl, g_GlobalFwdType, NULL, (void **)&pForward))
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!= HandleError_None)
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{
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return pContext->ThrowNativeError("Invalid forward handle %x (error %d)", hndl, err);
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}
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return pForward->GetFunctionCount();
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}
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static cell_t sm_AddToForward(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t fwdHandle = static_cast<Handle_t>(params[1]);
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Handle_t plHandle = static_cast<Handle_t>(params[2]);
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HandleError err;
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IChangeableForward *pForward;
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IPlugin *pPlugin;
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if ((err=g_HandleSys.ReadHandle(fwdHandle, g_PrivateFwdType, NULL, (void **)&pForward))
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!= HandleError_None)
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{
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return pContext->ThrowNativeError("Invalid private forward handle %x (error %d)", fwdHandle, err);
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}
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if (plHandle == 0)
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{
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pPlugin = g_PluginSys.FindPluginByContext(pContext->GetContext());
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} else {
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pPlugin = g_PluginSys.PluginFromHandle(plHandle, &err);
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if (!pPlugin)
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{
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return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", plHandle, err);
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}
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}
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IPluginFunction *pFunction = pPlugin->GetBaseContext()->GetFunctionById(params[3]);
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if (!pFunction)
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{
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return pContext->ThrowNativeError("Invalid function id (%X)", params[3]);
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}
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return pForward->AddFunction(pFunction);
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}
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static cell_t sm_RemoveFromForward(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t fwdHandle = static_cast<Handle_t>(params[1]);
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Handle_t plHandle = static_cast<Handle_t>(params[2]);
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HandleError err;
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IChangeableForward *pForward;
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IPlugin *pPlugin;
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if ((err=g_HandleSys.ReadHandle(fwdHandle, g_PrivateFwdType, NULL, (void **)&pForward))
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!= HandleError_None)
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{
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return pContext->ThrowNativeError("Invalid private forward handle %x (error %d)", fwdHandle, err);
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}
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if (plHandle == 0)
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{
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pPlugin = g_PluginSys.FindPluginByContext(pContext->GetContext());
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} else {
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pPlugin = g_PluginSys.PluginFromHandle(plHandle, &err);
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if (!pPlugin)
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{
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return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", plHandle, err);
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}
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}
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IPluginFunction *pFunction = pPlugin->GetBaseContext()->GetFunctionById(params[3]);
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if (!pFunction)
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{
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return pContext->ThrowNativeError("Invalid function id (%X)", params[3]);
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}
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return pForward->RemoveFunction(pFunction);
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}
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static cell_t sm_RemoveAllFromForward(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t fwdHandle = static_cast<Handle_t>(params[1]);
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Handle_t plHandle = static_cast<Handle_t>(params[2]);
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HandleError err;
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IChangeableForward *pForward;
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IPlugin *pPlugin;
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if ((err=g_HandleSys.ReadHandle(fwdHandle, g_PrivateFwdType, NULL, (void **)&pForward))
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!= HandleError_None)
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{
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return pContext->ThrowNativeError("Invalid private forward handle %x (error %d)", fwdHandle, err);
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}
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if (plHandle == 0)
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{
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pPlugin = g_PluginSys.FindPluginByContext(pContext->GetContext());
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} else {
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pPlugin = g_PluginSys.PluginFromHandle(plHandle, &err);
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if (!pPlugin)
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{
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return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", plHandle, err);
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}
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}
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return pForward->RemoveFunctionsOfPlugin(pPlugin);
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}
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static cell_t sm_CallStartFunction(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t hndl;
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HandleError err;
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IPlugin *pPlugin;
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if (s_CallStarted)
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{
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return pContext->ThrowNativeError("Cannot start a call while one is already in progress");
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}
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hndl = static_cast<Handle_t>(params[1]);
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if (hndl == 0)
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{
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pPlugin = g_PluginSys.FindPluginByContext(pContext->GetContext());
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} else {
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pPlugin = g_PluginSys.PluginFromHandle(hndl, &err);
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if (!pPlugin)
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{
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return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", hndl, err);
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}
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}
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s_pFunction = pPlugin->GetBaseContext()->GetFunctionById(params[2]);
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if (!s_pFunction)
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{
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return pContext->ThrowNativeError("Invalid function id (%X)", params[2]);
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}
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s_pCallable = static_cast<ICallable *>(s_pFunction);
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s_CallStarted = true;
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return 1;
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}
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static cell_t sm_CallStartForward(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t hndl;
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HandleError err;
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IForward *pForward;
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if (s_CallStarted)
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{
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return pContext->ThrowNativeError("Cannot start a call while one is already in progress");
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}
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hndl = static_cast<Handle_t>(params[1]);
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if ((err=g_HandleSys.ReadHandle(hndl, g_GlobalFwdType, NULL, (void **)&pForward))
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!= HandleError_None)
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{
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return pContext->ThrowNativeError("Invalid forward handle %x (error %d)", hndl, err);
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}
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s_pForward = pForward;
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s_pCallable = static_cast<ICallable *>(pForward);
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s_CallStarted = true;
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return 1;
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}
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static cell_t sm_CallPushCell(IPluginContext *pContext, const cell_t *params)
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{
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int err;
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if (!s_CallStarted)
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{
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return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
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}
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err = s_pCallable->PushCell(params[1]);
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if (err)
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{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushCellRef(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
cell_t *addr;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToPhysAddr(params[1], &addr);
|
||
|
|
|
||
|
|
err = s_pCallable->PushCellByRef(addr);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushFloat(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
err = s_pCallable->PushFloat(sp_ctof(params[1]));
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushFloatRef(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
cell_t *addr;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToPhysAddr(params[1], &addr);
|
||
|
|
|
||
|
|
err = s_pCallable->PushFloatByRef(reinterpret_cast<float *>(addr));
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushArray(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
cell_t *addr;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToPhysAddr(params[1], &addr);
|
||
|
|
|
||
|
|
err = s_pCallable->PushArray(addr, params[2]);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushArrayEx(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
cell_t *addr;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToPhysAddr(params[1], &addr);
|
||
|
|
|
||
|
|
err = s_pCallable->PushArray(addr, params[2], params[3]);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushString(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
char *value;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToString(params[1], &value);
|
||
|
|
|
||
|
|
err = s_pCallable->PushString(value);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallPushStringEx(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
char *value;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToString(params[1], &value);
|
||
|
|
|
||
|
|
err = s_pCallable->PushStringEx(value, params[2], params[3], params[4]);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
return pContext->ThrowNativeErrorEx(err, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallFinish(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
int err = SP_ERROR_NOT_RUNNABLE;
|
||
|
|
cell_t *result;
|
||
|
|
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot finish call when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
pContext->LocalToPhysAddr(params[1], &result);
|
||
|
|
|
||
|
|
if (s_pFunction)
|
||
|
|
{
|
||
|
|
IPluginFunction *pFunction = s_pFunction;
|
||
|
|
ResetCall();
|
||
|
|
err = pFunction->Execute(result);
|
||
|
|
} else if (s_pForward) {
|
||
|
|
IForward *pForward = s_pForward;
|
||
|
|
ResetCall();
|
||
|
|
err = pForward->Execute(result, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static cell_t sm_CallCancel(IPluginContext *pContext, const cell_t *params)
|
||
|
|
{
|
||
|
|
if (!s_CallStarted)
|
||
|
|
{
|
||
|
|
return pContext->ThrowNativeError("Cannot cancel call when there is no call in progress");
|
||
|
|
}
|
||
|
|
|
||
|
|
s_pCallable->Cancel();
|
||
|
|
ResetCall();
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
REGISTER_NATIVES(functionNatives)
|
||
|
|
{
|
||
|
|
{"GetFunctionByName", sm_GetFunctionByName},
|
||
|
|
{"CreateGlobalForward", sm_CreateGlobalForward},
|
||
|
|
{"CreateForward", sm_CreateForward},
|
||
|
|
{"GetForwardFunctionCount", sm_GetForwardFunctionCount},
|
||
|
|
{"AddToForward", sm_AddToForward},
|
||
|
|
{"RemoveFromForward", sm_RemoveFromForward},
|
||
|
|
{"RemoveAllFromForward", sm_RemoveAllFromForward},
|
||
|
|
{"Call_StartFunction", sm_CallStartFunction},
|
||
|
|
{"Call_StartForward", sm_CallStartForward},
|
||
|
|
{"Call_PushCell", sm_CallPushCell},
|
||
|
|
{"Call_PushCellRef", sm_CallPushCellRef},
|
||
|
|
{"Call_PushFloat", sm_CallPushFloat},
|
||
|
|
{"Call_PushFloatRef", sm_CallPushFloatRef},
|
||
|
|
{"Call_PushArray", sm_CallPushArray},
|
||
|
|
{"Call_PushArrayEx", sm_CallPushArrayEx},
|
||
|
|
{"Call_PushString", sm_CallPushString},
|
||
|
|
{"Call_PushStringEx", sm_CallPushStringEx},
|
||
|
|
{"Call_Finish", sm_CallFinish},
|
||
|
|
{"Call_Cancel", sm_CallCancel},
|
||
|
|
{NULL, NULL},
|
||
|
|
};
|