ds@1952: /**
ds@1952:  * vim: set ts=4 :
ds@1952:  * =============================================================================
ds@1952:  * SourceMod
ds@1952:  * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
ds@1952:  * =============================================================================
ds@1952:  *
ds@1952:  * This program is free software; you can redistribute it and/or modify it under
ds@1952:  * the terms of the GNU General Public License, version 3.0, as published by the
ds@1952:  * Free Software Foundation.
ds@1952:  * 
ds@1952:  * This program is distributed in the hope that it will be useful, but WITHOUT
ds@1952:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
ds@1952:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
ds@1952:  * details.
ds@1952:  *
ds@1952:  * You should have received a copy of the GNU General Public License along with
ds@1952:  * this program.  If not, see <http://www.gnu.org/licenses/>.
ds@1952:  *
ds@1952:  * As a special exception, AlliedModders LLC gives you permission to link the
ds@1952:  * code of this program (as well as its derivative works) to "Half-Life 2," the
ds@1952:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
ds@1952:  * by the Valve Corporation.  You must obey the GNU General Public License in
ds@1952:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
ds@1952:  * this exception to all derivative works.  AlliedModders LLC defines further
ds@1952:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
ds@1952:  * or <http://www.sourcemod.net/license.php>.
ds@1952:  *
ds@1952:  * Version: $Id$
ds@1952:  */
ds@1952: 
ds@1952: #include "HandleSys.h"
ds@1952: #include "TimerSys.h"
ds@1952: #include "PluginSys.h"
ds@1952: #include "Logger.h"
ds@1952: #include "DebugReporter.h"
ds@1952: 
ds@1952: #define TIMER_HNDL_CLOSE	(1<<9)
ds@1952: 
ds@1952: HandleType_t g_TimerType;
ds@1952: 
ds@1952: struct TimerInfo 
ds@1952: {
ds@1952: 	ITimer *Timer;
ds@1952: 	IPluginFunction *Hook;
ds@1952: 	IPluginContext *pContext;
ds@1952: 	Handle_t TimerHandle;
ds@1952: 	int UserData;
ds@1952: 	int Flags;
ds@1952: };
ds@1952: 
ds@1952: class TimerNatives :
ds@1952: 	public SMGlobalClass,
ds@1952: 	public IHandleTypeDispatch,
ds@1952: 	public ITimedEvent
ds@1952: {
ds@1952: public:
ds@1952: 	~TimerNatives();
ds@1952: public: //ITimedEvent
ds@1952: 	ResultType OnTimer(ITimer *pTimer, void *pData);
ds@1952: 	void OnTimerEnd(ITimer *pTimer, void *pData);
ds@1952: public: //IHandleTypeDispatch
ds@1952: 	void OnHandleDestroy(HandleType_t type, void *object);
ds@1952: public: //SMGlobalClass
ds@1952: 	void OnSourceModAllInitialized();
ds@1952: 	void OnSourceModShutdown();
ds@1952: public:
ds@1952: 	TimerInfo *CreateTimerInfo();
ds@1952: 	void DeleteTimerInfo(TimerInfo *pInfo);
ds@1952: private:
ds@1952: 	CStack<TimerInfo *> m_FreeTimers;
ds@1952: };
ds@1952: 
ds@1952: TimerNatives::~TimerNatives()
ds@1952: {
ds@1952: 	CStack<TimerInfo *>::iterator iter;
ds@1952: 	for (iter=m_FreeTimers.begin(); iter!=m_FreeTimers.end(); iter++)
ds@1952: 	{
ds@1952: 		delete (*iter);
ds@1952: 	}
ds@1952: 	m_FreeTimers.popall();
ds@1952: }
ds@1952: 
ds@1952: void TimerNatives::OnSourceModAllInitialized()
ds@1952: {
ds@1952: 	HandleAccess sec;
ds@1952: 
ds@1952: 	g_HandleSys.InitAccessDefaults(NULL, &sec);
ds@1952: 	sec.access[HandleAccess_Clone] = HANDLE_RESTRICT_IDENTITY;
ds@1952: 
ds@1952: 	g_TimerType = g_HandleSys.CreateType("Timer", this, 0, NULL, &sec, g_pCoreIdent, NULL);
ds@1952: }
ds@1952: 
ds@1952: void TimerNatives::OnSourceModShutdown()
ds@1952: {
ds@1952: 	g_HandleSys.RemoveType(g_TimerType, g_pCoreIdent);
ds@1952: 	g_TimerType = 0;
ds@1952: }
ds@1952: 
ds@1952: void TimerNatives::OnHandleDestroy(HandleType_t type, void *object)
ds@1952: {
ds@1952: 	TimerInfo *pTimer = reinterpret_cast<TimerInfo *>(object);
ds@1952: 
ds@1952: 	g_Timers.KillTimer(pTimer->Timer);
ds@1952: }
ds@1952: 
ds@1952: TimerInfo *TimerNatives::CreateTimerInfo()
ds@1952: {
ds@1952: 	TimerInfo *pInfo;
ds@1952: 
ds@1952: 	if (m_FreeTimers.empty())
ds@1952: 	{
ds@1952: 		pInfo = new TimerInfo;
ds@1952: 	} else {
ds@1952: 		pInfo = m_FreeTimers.front();
ds@1952: 		m_FreeTimers.pop();
ds@1952: 	}
ds@1952: 
ds@1952: 	return pInfo;
ds@1952: }
ds@1952: 
ds@1952: void TimerNatives::DeleteTimerInfo(TimerInfo *pInfo)
ds@1952: {
ds@1952: 	m_FreeTimers.push(pInfo);
ds@1952: }
ds@1952: 
ds@1952: ResultType TimerNatives::OnTimer(ITimer *pTimer, void *pData)
ds@1952: {
ds@1952: 	TimerInfo *pInfo = reinterpret_cast<TimerInfo *>(pData);
ds@1952: 	IPluginFunction *pFunc = pInfo->Hook;
ds@1952: 	cell_t res = static_cast<ResultType>(Pl_Continue);
ds@1952: 
ds@1952: 	pFunc->PushCell(pInfo->TimerHandle);
ds@1952: 	pFunc->PushCell(pInfo->UserData);
ds@1952: 	pFunc->Execute(&res);
ds@1952: 
ds@1952: 	return static_cast<ResultType>(res);
ds@1952: }
ds@1952: 
ds@1952: void TimerNatives::OnTimerEnd(ITimer *pTimer, void *pData)
ds@1952: {
ds@1952: 	HandleSecurity sec;
ds@1952: 	HandleError herr;
ds@1952: 	TimerInfo *pInfo = reinterpret_cast<TimerInfo *>(pData);
ds@1952: 	Handle_t usrhndl = static_cast<Handle_t>(pInfo->UserData);
ds@1952: 
ds@1952: 	sec.pOwner = pInfo->pContext->GetIdentity();
ds@1952: 	sec.pIdentity = g_pCoreIdent;
ds@1952: 
ds@1952: 	if (pInfo->Flags & TIMER_HNDL_CLOSE)
ds@1952: 	{
ds@1952: 		if ((herr=g_HandleSys.FreeHandle(usrhndl, &sec)) != HandleError_None)
ds@1952: 		{
ds@1952: 			g_DbgReporter.GenerateError(pInfo->pContext,
ds@1952: 										pInfo->Hook->GetFunctionID(), 
ds@1952: 										SP_ERROR_NATIVE, 
ds@1952: 										"Invalid data handle %x (error %d) passed during timer end",
ds@1952: 										usrhndl, 
ds@1952: 										herr);
ds@1952: 		}
ds@1952: 	}
ds@1952: 
ds@1952: 	if ((herr=g_HandleSys.FreeHandle(pInfo->TimerHandle, &sec)) != HandleError_None)
ds@1952: 	{
ds@1952: 		g_DbgReporter.GenerateError(pInfo->pContext, 
ds@1952: 									pInfo->Hook->GetFunctionID(), 
ds@1952: 									SP_ERROR_NATIVE, 
ds@1952: 									"Invalid timer handle %x (error %d) during timer end, displayed function is timer callback, not the stack trace", 
ds@1952: 									pInfo->TimerHandle, 
ds@1952: 									herr);
ds@1952: 		return;
ds@1952: 	}
ds@1952: 	DeleteTimerInfo(pInfo);
ds@1952: }
ds@1952: 
ds@1952: /*******************************
ds@1952: *                              *
ds@1952: * TIMER NATIVE IMPLEMENTATIONS *
ds@1952: *                              *
ds@1952: ********************************/
ds@1952: 
ds@1952: static TimerNatives s_TimerNatives;
ds@1952: 
ds@1952: static cell_t smn_CreateTimer(IPluginContext *pCtx, const cell_t *params)
ds@1952: {
ds@1952: 	IPluginFunction *pFunc;
ds@1952: 	TimerInfo *pInfo;
ds@1952: 	ITimer *pTimer;
ds@1952: 	Handle_t hndl;
ds@1952: 	int flags = params[4];
ds@1952: 
ds@1952: 	pFunc = pCtx->GetFunctionById(params[2]);
ds@1952: 	if (!pFunc)
ds@1952: 	{
ds@1952: 		return pCtx->ThrowNativeError("Invalid function id (%X)", params[2]);
ds@1952: 	}
ds@1952: 
ds@1952: 	pInfo = s_TimerNatives.CreateTimerInfo();
ds@1952: 	pTimer = g_Timers.CreateTimer(&s_TimerNatives, sp_ctof(params[1]), pInfo, flags);
ds@1952: 
ds@1952: 	if (!pTimer)
ds@1952: 	{
ds@1952: 		s_TimerNatives.DeleteTimerInfo(pInfo);
ds@1952: 		return 0;
ds@1952: 	}
ds@1952: 
ds@1952: 	hndl = g_HandleSys.CreateHandle(g_TimerType, pInfo, pCtx->GetIdentity(), g_pCoreIdent, NULL);
ds@1952: 
ds@1952: 	pInfo->UserData = params[3];
ds@1952: 	pInfo->Flags = flags;
ds@1952: 	pInfo->TimerHandle = hndl;
ds@1952: 	pInfo->Hook = pFunc;
ds@1952: 	pInfo->Timer = pTimer;
ds@1952: 	pInfo->pContext = pCtx;
ds@1952: 
ds@1952: 	return hndl;
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_KillTimer(IPluginContext *pCtx, const cell_t *params)
ds@1952: {
ds@1952: 	Handle_t hndl = static_cast<Handle_t>(params[1]);
ds@1952: 	HandleError herr;
ds@1952: 	HandleSecurity sec;
ds@1952: 	TimerInfo *pInfo;
ds@1952: 
ds@1952: 	sec.pOwner = pCtx->GetIdentity();
ds@1952: 	sec.pIdentity = g_pCoreIdent;
ds@1952: 
ds@1952: 	if ((herr=g_HandleSys.ReadHandle(hndl, g_TimerType, &sec, (void **)&pInfo))
ds@1952: 		!= HandleError_None)
ds@1952: 	{
ds@1952: 		return pCtx->ThrowNativeError("Invalid timer handle %x (error %d)", hndl, herr);
ds@1952: 	}
ds@1952: 
ds@1952: 	g_Timers.KillTimer(pInfo->Timer);
ds@1952: 
ds@1952: 	if (params[2] && !(pInfo->Flags & TIMER_HNDL_CLOSE))
ds@1952: 	{
ds@1952: 		sec.pOwner = pInfo->pContext->GetIdentity();
ds@1952: 		sec.pIdentity = g_pCoreIdent;
ds@1952: 
ds@1952: 		if ((herr=g_HandleSys.FreeHandle(static_cast<Handle_t>(pInfo->UserData), &sec)) != HandleError_None)
ds@1952: 		{
ds@1952: 			return pCtx->ThrowNativeError("Invalid data handle %x (error %d)", hndl, herr);
ds@1952: 		}
ds@1952: 	}
ds@1952: 
ds@1952: 	return 1;
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_TriggerTimer(IPluginContext *pCtx, const cell_t *params)
ds@1952: {
ds@1952: 	Handle_t hndl = static_cast<Handle_t>(params[1]);
ds@1952: 	HandleError herr;
ds@1952: 	HandleSecurity sec;
ds@1952: 	TimerInfo *pInfo;
ds@1952: 
ds@1952: 	sec.pOwner = pCtx->GetIdentity();
ds@1952: 	sec.pIdentity = g_pCoreIdent;
ds@1952: 
ds@1952: 	if ((herr=g_HandleSys.ReadHandle(hndl, g_TimerType, &sec, (void **)&pInfo))
ds@1952: 		!= HandleError_None)
ds@1952: 	{
ds@1952: 		return pCtx->ThrowNativeError("Invalid timer handle %x (error %d)", hndl, herr);
ds@1952: 	}
ds@1952: 
ds@1952: 	g_Timers.FireTimerOnce(pInfo->Timer, params[2] ? true : false);
ds@1952: 
ds@1952: 	return 1;
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_GetTickedTime(IPluginContext *pContext, const cell_t *params)
ds@1952: {
ds@1952: 	return sp_ftoc(*g_pUniversalTime);
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_GetMapTimeLeft(IPluginContext *pContext, const cell_t *params)
ds@1952: {
ds@1952: 	float time_left;
ds@1952: 	if (!g_Timers.GetMapTimeLeft(&time_left))
ds@1952: 	{
ds@1952: 		return 0;
ds@1952: 	}
ds@1952: 
ds@1952: 	cell_t *addr;
ds@1952: 	pContext->LocalToPhysAddr(params[1], &addr);
ds@1952: 	*addr = (int)time_left;
ds@1952: 
ds@1952: 	return 1;
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_GetMapTimeLimit(IPluginContext *pContext, const cell_t *params)
ds@1952: {
ds@1952: 	IMapTimer *pMapTimer = g_Timers.GetMapTimer();
ds@1952: 
ds@1952: 	if (!pMapTimer)
ds@1952: 	{
ds@1952: 		return 0;
ds@1952: 	}
ds@1952: 
ds@1952: 	cell_t *addr;
ds@1952: 	pContext->LocalToPhysAddr(params[1], &addr);
ds@1952: 
ds@1952: 	*addr = pMapTimer->GetMapTimeLimit();
ds@1952: 
ds@1952: 	return 1;
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_ExtendMapTimeLimit(IPluginContext *pContext, const cell_t *params)
ds@1952: {
ds@1952: 	IMapTimer *pMapTimer = g_Timers.GetMapTimer();
ds@1952: 
ds@1952: 	if (!pMapTimer)
ds@1952: 	{
ds@1952: 		return 0;
ds@1952: 	}
ds@1952: 
ds@1952: 	pMapTimer->ExtendMapTimeLimit(params[1]);
ds@1952: 
ds@1952: 	return 1;
ds@1952: }
ds@1952: 
ds@1952: static cell_t smn_IsServerProcessing(IPluginContext *pContext, const cell_t *params)
ds@1952: {
ds@1952: 	return (gpGlobals->frametime > 0.0f) ? 1 : 0;
ds@1952: }
ds@1952: 
dvander@2063: static cell_t smn_GetTickInterval(IPluginContext *pContext, const cell_t *params)
dvander@2063: {
dvander@2063: 	return sp_ftoc(gpGlobals->interval_per_tick);
dvander@2063: }
dvander@2063: 
ds@1952: REGISTER_NATIVES(timernatives)
ds@1952: {
ds@1952: 	{"CreateTimer",				smn_CreateTimer},
ds@1952: 	{"KillTimer",				smn_KillTimer},
ds@1952: 	{"TriggerTimer",			smn_TriggerTimer},
ds@1952: 	{"GetTickedTime",			smn_GetTickedTime},
ds@1952: 	{"GetMapTimeLeft",			smn_GetMapTimeLeft},
ds@1952: 	{"GetMapTimeLimit",			smn_GetMapTimeLimit},
ds@1952: 	{"ExtendMapTimeLimit",		smn_ExtendMapTimeLimit},
ds@1952: 	{"IsServerProcessing",		smn_IsServerProcessing},
dvander@2063: 	{"GetTickInterval",			smn_GetTickInterval},
ds@1952: 	{NULL,						NULL}
ds@1952: };
dvander@2063: