core/logic/ExtensionSys.cpp
changeset 3872 4c93f74cae51
parent 3853 3c8f57923db5
child 3880 48eed18701f0
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/core/logic/ExtensionSys.cpp	Fri Mar 29 11:37:29 2013 -0700
     1.3 @@ -0,0 +1,1383 @@
     1.4 +/**
     1.5 + * vim: set ts=4 sw=4 tw=99 noet :
     1.6 + * =============================================================================
     1.7 + * SourceMod
     1.8 + * Copyright (C) 2004-2010 AlliedModders LLC.  All rights reserved.
     1.9 + * =============================================================================
    1.10 + *
    1.11 + * This program is free software; you can redistribute it and/or modify it under
    1.12 + * the terms of the GNU General Public License, version 3.0, as published by the
    1.13 + * Free Software Foundation.
    1.14 + * 
    1.15 + * This program is distributed in the hope that it will be useful, but WITHOUT
    1.16 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    1.17 + * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
    1.18 + * details.
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License along with
    1.21 + * this program.  If not, see <http://www.gnu.org/licenses/>.
    1.22 + *
    1.23 + * As a special exception, AlliedModders LLC gives you permission to link the
    1.24 + * code of this program (as well as its derivative works) to "Half-Life 2," the
    1.25 + * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
    1.26 + * by the Valve Corporation.  You must obey the GNU General Public License in
    1.27 + * all respects for all other code used.  Additionally, AlliedModders LLC grants
    1.28 + * this exception to all derivative works.  AlliedModders LLC defines further
    1.29 + * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
    1.30 + * or <http://www.sourcemod.net/license.php>.
    1.31 + *
    1.32 + * Version: $Id$
    1.33 + */
    1.34 +
    1.35 +#include <stdlib.h>
    1.36 +#include "ExtensionSys.h"
    1.37 +#include <ILibrarySys.h>
    1.38 +#include <ISourceMod.h>
    1.39 +#include "common_logic.h"
    1.40 +#include "PluginSys.h"
    1.41 +
    1.42 +CExtensionManager g_Extensions;
    1.43 +IdentityType_t g_ExtType;
    1.44 +
    1.45 +void CExtension::Initialize(const char *filename, const char *path)
    1.46 +{
    1.47 +	m_pAPI = NULL;
    1.48 +	m_pIdentToken = NULL;
    1.49 +	unload_code = 0;
    1.50 +	m_bFullyLoaded = false;
    1.51 +	m_File.assign(filename);
    1.52 +	m_Path.assign(path);
    1.53 +	char real_name[PLATFORM_MAX_PATH];
    1.54 +	libsys->GetFileFromPath(real_name, sizeof(real_name), m_Path.c_str());
    1.55 +	m_RealFile.assign(real_name);
    1.56 +}
    1.57 +
    1.58 +CRemoteExtension::CRemoteExtension(IExtensionInterface *pAPI, const char *filename, const char *path)
    1.59 +{
    1.60 +	Initialize(filename, path);
    1.61 +	m_pAPI = pAPI;
    1.62 +}
    1.63 +
    1.64 +#if defined METAMOD_PLAPI_VERSION
    1.65 +#if SOURCE_ENGINE == SE_LEFT4DEAD
    1.66 +#define GAMEFIX "2.l4d"
    1.67 +#elif SOURCE_ENGINE == SE_LEFT4DEAD2
    1.68 +#define GAMEFIX "2.l4d2"
    1.69 +#elif SOURCE_ENGINE == SE_ALIENSWARM
    1.70 +#define GAMEFIX "2.swarm"
    1.71 +#elif SOURCE_ENGINE == SE_ORANGEBOX
    1.72 +#define GAMEFIX "2.ep2"
    1.73 +#elif SOURCE_ENGINE == SE_BLOODYGOODTIME
    1.74 +#define GAMEFIX "2.bgt"
    1.75 +#elif SOURCE_ENGINE == SE_EYE
    1.76 +#define GAMEFIX "2.eye"
    1.77 +#elif SOURCE_ENGINE == SE_CSS
    1.78 +#define GAMEFIX "2.css"
    1.79 +#elif SOURCE_ENGINE == SE_ORANGEBOXVALVE
    1.80 +#define GAMEFIX "2.ep2v"
    1.81 +#elif SOURCE_ENGINE == SE_DARKMESSIAH
    1.82 +#define GAMEFIX "2.darkm"
    1.83 +#elif SOURCE_ENGINE == SE_PORTAL2
    1.84 +#define GAMEFIX "2.portal2"
    1.85 +#elif SOURCE_ENGINE == SE_CSGO
    1.86 +#define GAMEFIX "2.csgo"
    1.87 +#elif SOURCE_ENGINE == SE_DOTA
    1.88 +#define GAMEFIX "2.dota"
    1.89 +#else
    1.90 +#define GAMEFIX "2.ep1"
    1.91 +#endif //(SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2)
    1.92 +#else  //METAMOD_PLAPI_VERSION
    1.93 +#define GAMEFIX "1.ep1"
    1.94 +#endif //METAMOD_PLAPI_VERSION
    1.95 +
    1.96 +CLocalExtension::CLocalExtension(const char *filename)
    1.97 +{
    1.98 +	m_PlId = 0;
    1.99 +	m_pLib = NULL;
   1.100 +
   1.101 +	char path[PLATFORM_MAX_PATH];
   1.102 +
   1.103 +	/* Special case for new bintools binary */
   1.104 +	if (strcmp(filename, "bintools.ext") == 0)
   1.105 +	{
   1.106 +		goto normal;
   1.107 +	}
   1.108 +
   1.109 +	/* Zeroth, see if there is an engine specific build in the new place. */
   1.110 +	g_pSM->BuildPath(Path_SM,
   1.111 +		path,
   1.112 +		PLATFORM_MAX_PATH,
   1.113 +		"extensions/%s." GAMEFIX "." PLATFORM_LIB_EXT,
   1.114 +		filename);
   1.115 +
   1.116 +	if (libsys->IsPathFile(path))
   1.117 +	{
   1.118 +		goto found;
   1.119 +	}
   1.120 +
   1.121 +	/* First see if there is an engine specific build! */
   1.122 +	g_pSM->BuildPath(Path_SM, 
   1.123 +		path, 
   1.124 +		PLATFORM_MAX_PATH,
   1.125 +		"extensions/auto." GAMEFIX "/%s." PLATFORM_LIB_EXT,
   1.126 +		filename);
   1.127 +
   1.128 +	/* Try the "normal" version */
   1.129 +	if (!libsys->IsPathFile(path))
   1.130 +	{
   1.131 +		normal:
   1.132 +		g_pSM->BuildPath(Path_SM,
   1.133 +			path,
   1.134 +			PLATFORM_MAX_PATH,
   1.135 +			"extensions/%s." PLATFORM_LIB_EXT,
   1.136 +			filename);
   1.137 +	}
   1.138 +
   1.139 +found:
   1.140 +	Initialize(filename, path);
   1.141 +}
   1.142 +
   1.143 +bool CRemoteExtension::Load(char *error, size_t maxlength)
   1.144 +{
   1.145 +	if (!PerformAPICheck(error, maxlength))
   1.146 +	{
   1.147 +		m_pAPI = NULL;
   1.148 +		return false;
   1.149 +	}
   1.150 +
   1.151 +	if (!CExtension::Load(error, maxlength))
   1.152 +	{
   1.153 +		m_pAPI = NULL;
   1.154 +		return false;
   1.155 +	}
   1.156 +
   1.157 +	return true;
   1.158 +}
   1.159 +
   1.160 +bool CLocalExtension::Load(char *error, size_t maxlength)
   1.161 +{
   1.162 +	m_pLib = libsys->OpenLibrary(m_Path.c_str(), error, maxlength);
   1.163 +
   1.164 +	if (m_pLib == NULL)
   1.165 +	{
   1.166 +		return false;
   1.167 +	}
   1.168 +
   1.169 +	typedef IExtensionInterface *(*GETAPI)();
   1.170 +	GETAPI pfnGetAPI = NULL;
   1.171 +
   1.172 +	if ((pfnGetAPI=(GETAPI)m_pLib->GetSymbolAddress("GetSMExtAPI")) == NULL)
   1.173 +	{
   1.174 +		m_pLib->CloseLibrary();
   1.175 +		m_pLib = NULL;
   1.176 +		snprintf(error, maxlength, "Unable to find extension entry point");
   1.177 +		return false;
   1.178 +	}
   1.179 +
   1.180 +	m_pAPI = pfnGetAPI();
   1.181 +
   1.182 +	/* Check pointer and version */
   1.183 +	if (!PerformAPICheck(error, maxlength))
   1.184 +	{
   1.185 +		m_pLib->CloseLibrary();
   1.186 +		m_pLib = NULL;
   1.187 +		m_pAPI = NULL;
   1.188 +		return false;
   1.189 +	}
   1.190 +
   1.191 +	/* Load as MM:S */
   1.192 +	if (m_pAPI->IsMetamodExtension())
   1.193 +	{
   1.194 +		bool ok;
   1.195 +		m_PlId = smcore.LoadMMSPlugin(m_Path.c_str(), &ok, error, maxlength);
   1.196 +
   1.197 +		if (!m_PlId || !ok)
   1.198 +		{
   1.199 +			m_pLib->CloseLibrary();
   1.200 +			m_pLib = NULL;
   1.201 +			m_pAPI = NULL;
   1.202 +			return false;
   1.203 +		}
   1.204 +	}
   1.205 +
   1.206 +	if (!CExtension::Load(error, maxlength))
   1.207 +	{
   1.208 +		if (m_pAPI->IsMetamodExtension())
   1.209 +		{
   1.210 +			if (m_PlId)
   1.211 +			{
   1.212 +				smcore.UnloadMMSPlugin(m_PlId);
   1.213 +				m_PlId = 0;
   1.214 +			}
   1.215 +		}
   1.216 +		m_pLib->CloseLibrary();
   1.217 +		m_pLib = NULL;
   1.218 +		m_pAPI = NULL;
   1.219 +		return false;
   1.220 +	}
   1.221 +
   1.222 +	return true;
   1.223 +}
   1.224 +
   1.225 +void CRemoteExtension::Unload()
   1.226 +{
   1.227 +}
   1.228 +
   1.229 +void CLocalExtension::Unload()
   1.230 +{
   1.231 +	if (m_pAPI != NULL && m_PlId)
   1.232 +	{
   1.233 +		smcore.UnloadMMSPlugin(m_PlId);
   1.234 +		m_PlId = 0;
   1.235 +	}
   1.236 +
   1.237 +	if (m_pLib != NULL)
   1.238 +	{
   1.239 +		m_pLib->CloseLibrary();
   1.240 +		m_pLib = NULL;
   1.241 +	}
   1.242 +}
   1.243 +
   1.244 +bool CRemoteExtension::Reload(char *error, size_t maxlength)
   1.245 +{
   1.246 +	snprintf(error, maxlength, "Remote extensions do not support reloading");
   1.247 +	return false;
   1.248 +}
   1.249 +
   1.250 +bool CLocalExtension::Reload(char *error, size_t maxlength)
   1.251 +{
   1.252 +	if (m_pLib == NULL) // FIXME: just load it instead?
   1.253 +		return false;
   1.254 +	
   1.255 +	m_pAPI->OnExtensionUnload();
   1.256 +	Unload();
   1.257 +	
   1.258 +	return Load(error, maxlength);
   1.259 +}
   1.260 +
   1.261 +bool CRemoteExtension::IsExternal()
   1.262 +{
   1.263 +	return true;
   1.264 +}
   1.265 +
   1.266 +bool CLocalExtension::IsExternal()
   1.267 +{
   1.268 +	return false;
   1.269 +}
   1.270 +
   1.271 +CExtension::~CExtension()
   1.272 +{
   1.273 +	DestroyIdentity();
   1.274 +}
   1.275 +
   1.276 +bool CExtension::PerformAPICheck(char *error, size_t maxlength)
   1.277 +{
   1.278 +	if (!m_pAPI)
   1.279 +	{
   1.280 +		snprintf(error, maxlength, "No IExtensionInterface instance provided");
   1.281 +		return false;
   1.282 +	}
   1.283 +	
   1.284 +	if (m_pAPI->GetExtensionVersion() > SMINTERFACE_EXTENSIONAPI_VERSION)
   1.285 +	{
   1.286 +		snprintf(error, maxlength, "Extension version is too new to load (%d, max is %d)", m_pAPI->GetExtensionVersion(), SMINTERFACE_EXTENSIONAPI_VERSION);
   1.287 +		return false;
   1.288 +	}
   1.289 +
   1.290 +	return true;
   1.291 +}
   1.292 +
   1.293 +bool CExtension::Load(char *error, size_t maxlength)
   1.294 +{
   1.295 +	CreateIdentity();
   1.296 +	if (!m_pAPI->OnExtensionLoad(this, &g_ShareSys, error, maxlength, !smcore.IsMapLoading()))
   1.297 +	{
   1.298 +		DestroyIdentity();
   1.299 +		return false;
   1.300 +	}
   1.301 +	else
   1.302 +	{
   1.303 +		/* Check if we're past load time */
   1.304 +		if (!smcore.IsMapLoading())
   1.305 +		{
   1.306 +			m_pAPI->OnExtensionsAllLoaded();
   1.307 +		}
   1.308 +	}
   1.309 +
   1.310 +	return true;
   1.311 +}
   1.312 +
   1.313 +void CExtension::CreateIdentity()
   1.314 +{
   1.315 +	if (m_pIdentToken != NULL)
   1.316 +	{
   1.317 +		return;
   1.318 +	}
   1.319 +
   1.320 +	m_pIdentToken = g_ShareSys.CreateIdentity(g_ExtType, this);
   1.321 +}
   1.322 +
   1.323 +void CExtension::DestroyIdentity()
   1.324 +{
   1.325 +	if (m_pIdentToken == NULL)
   1.326 +	{
   1.327 +		return;
   1.328 +	}
   1.329 +
   1.330 +	g_ShareSys.DestroyIdentity(m_pIdentToken);
   1.331 +	m_pIdentToken = NULL;
   1.332 +}
   1.333 +
   1.334 +void CExtension::MarkAllLoaded()
   1.335 +{
   1.336 +	assert(m_bFullyLoaded == false);
   1.337 +	if (!m_bFullyLoaded)
   1.338 +	{
   1.339 +		m_bFullyLoaded = true;
   1.340 +		m_pAPI->OnExtensionsAllLoaded();
   1.341 +	}
   1.342 +}
   1.343 +
   1.344 +void CExtension::AddPlugin(CPlugin *pPlugin)
   1.345 +{
   1.346 +	/* Unfortunately we have to do this :( */
   1.347 +	if (m_Dependents.find(pPlugin) != m_Dependents.end())
   1.348 +	{
   1.349 +		m_Dependents.push_back(pPlugin);
   1.350 +	}
   1.351 +}
   1.352 +
   1.353 +void CExtension::SetError(const char *error)
   1.354 +{
   1.355 +	m_Error.assign(error);
   1.356 +}
   1.357 +
   1.358 +IExtensionInterface *CExtension::GetAPI()
   1.359 +{
   1.360 +	return m_pAPI;
   1.361 +}
   1.362 +
   1.363 +const char *CExtension::GetFilename()
   1.364 +{
   1.365 +	return m_RealFile.c_str();
   1.366 +}
   1.367 +
   1.368 +const char *CExtension::GetPath() const
   1.369 +{
   1.370 +	return m_Path.c_str();
   1.371 +}
   1.372 +
   1.373 +IdentityToken_t *CExtension::GetIdentity()
   1.374 +{
   1.375 +	return m_pIdentToken;
   1.376 +}
   1.377 +
   1.378 +bool CRemoteExtension::IsLoaded()
   1.379 +{
   1.380 +	return (m_pAPI != NULL);
   1.381 +}
   1.382 +
   1.383 +bool CLocalExtension::IsLoaded()
   1.384 +{
   1.385 +	return (m_pLib != NULL);
   1.386 +}
   1.387 +
   1.388 +void CExtension::AddDependency(const IfaceInfo *pInfo)
   1.389 +{
   1.390 +	if (m_Deps.find(*pInfo) == m_Deps.end())
   1.391 +	{
   1.392 +		m_Deps.push_back(*pInfo);
   1.393 +	}
   1.394 +}
   1.395 +
   1.396 +bool operator ==(const IfaceInfo &i1, const IfaceInfo &i2)
   1.397 +{
   1.398 +	return (i1.iface == i2.iface) && (i1.owner == i2.owner);
   1.399 +}
   1.400 +
   1.401 +void CExtension::AddChildDependent(CExtension *pOther, SMInterface *iface)
   1.402 +{
   1.403 +	IfaceInfo info;
   1.404 +	info.iface = iface;
   1.405 +	info.owner = pOther;
   1.406 +
   1.407 +	List<IfaceInfo>::iterator iter;
   1.408 +	for (iter = m_ChildDeps.begin();
   1.409 +		 iter != m_ChildDeps.end();
   1.410 +		 iter++)
   1.411 +	{
   1.412 +		IfaceInfo &other = (*iter);
   1.413 +		if (other == info)
   1.414 +		{
   1.415 +			return;
   1.416 +		}
   1.417 +	}
   1.418 +
   1.419 +	m_ChildDeps.push_back(info);
   1.420 +}
   1.421 +
   1.422 +ITERATOR *CExtension::FindFirstDependency(IExtension **pOwner, SMInterface **pInterface)
   1.423 +{
   1.424 +	List<IfaceInfo>::iterator iter = m_Deps.begin();
   1.425 +
   1.426 +	if (iter == m_Deps.end())
   1.427 +	{
   1.428 +		return NULL;
   1.429 +	}
   1.430 +
   1.431 +	if (pOwner)
   1.432 +	{
   1.433 +		*pOwner = (*iter).owner;
   1.434 +	}
   1.435 +	if (pInterface)
   1.436 +	{
   1.437 +		*pInterface = (*iter).iface;
   1.438 +	}
   1.439 +
   1.440 +	List<IfaceInfo>::iterator *pIter = new List<IfaceInfo>::iterator(iter);
   1.441 +
   1.442 +	return (ITERATOR *)pIter;
   1.443 +}
   1.444 +
   1.445 +bool CExtension::FindNextDependency(ITERATOR *iter, IExtension **pOwner, SMInterface **pInterface)
   1.446 +{
   1.447 +	List<IfaceInfo>::iterator *pIter = (List<IfaceInfo>::iterator *)iter;
   1.448 +	List<IfaceInfo>::iterator _iter;
   1.449 +
   1.450 +	if (_iter == m_Deps.end())
   1.451 +	{
   1.452 +		return false;
   1.453 +	}
   1.454 +
   1.455 +	_iter++;
   1.456 +
   1.457 +	if (pOwner)
   1.458 +	{
   1.459 +		*pOwner = (*_iter).owner;
   1.460 +	}
   1.461 +	if (pInterface)
   1.462 +	{
   1.463 +		*pInterface = (*_iter).iface;
   1.464 +	}
   1.465 +
   1.466 +	*pIter = _iter;
   1.467 +
   1.468 +	if (_iter == m_Deps.end())
   1.469 +	{
   1.470 +		return false;
   1.471 +	}
   1.472 +
   1.473 +	return true;
   1.474 +}
   1.475 +
   1.476 +void CExtension::FreeDependencyIterator(ITERATOR *iter)
   1.477 +{
   1.478 +	List<IfaceInfo>::iterator *pIter = (List<IfaceInfo>::iterator *)iter;
   1.479 +
   1.480 +	delete pIter;
   1.481 +}
   1.482 +
   1.483 +void CExtension::AddInterface(SMInterface *pInterface)
   1.484 +{
   1.485 +	m_Interfaces.push_back(pInterface);
   1.486 +}
   1.487 +
   1.488 +bool CExtension::IsRunning(char *error, size_t maxlength)
   1.489 +{
   1.490 +	if (!IsLoaded())
   1.491 +	{
   1.492 +		if (error)
   1.493 +		{
   1.494 +			snprintf(error, maxlength, "%s", m_Error.c_str());
   1.495 +		}
   1.496 +		return false;
   1.497 +	}
   1.498 +
   1.499 +	return m_pAPI->QueryRunning(error, maxlength);
   1.500 +}
   1.501 +
   1.502 +void CExtension::AddLibrary(const char *library)
   1.503 +{
   1.504 +	m_Libraries.push_back(library);
   1.505 +}
   1.506 +
   1.507 +/*********************
   1.508 + * EXTENSION MANAGER *
   1.509 + *********************/
   1.510 +
   1.511 +void CExtensionManager::OnSourceModAllInitialized()
   1.512 +{
   1.513 +	g_ExtType = g_ShareSys.CreateIdentType("EXTENSION");
   1.514 +	pluginsys->AddPluginsListener(this);
   1.515 +	g_ShareSys.AddInterface(NULL, this);
   1.516 +}
   1.517 +
   1.518 +void CExtensionManager::OnSourceModShutdown()
   1.519 +{
   1.520 +	pluginsys->RemovePluginsListener(this);
   1.521 +	g_ShareSys.DestroyIdentType(g_ExtType);
   1.522 +}
   1.523 +
   1.524 +void CExtensionManager::Shutdown()
   1.525 +{
   1.526 +	List<CExtension *>::iterator iter;
   1.527 +
   1.528 +	while ((iter = m_Libs.begin()) != m_Libs.end())
   1.529 +	{
   1.530 +		UnloadExtension((*iter));
   1.531 +	}
   1.532 +}
   1.533 +
   1.534 +void CExtensionManager::TryAutoload()
   1.535 +{
   1.536 +	char path[PLATFORM_MAX_PATH];
   1.537 +
   1.538 +	g_pSM->BuildPath(Path_SM, path, sizeof(path), "extensions");
   1.539 +
   1.540 +	IDirectory *pDir = libsys->OpenDirectory(path);
   1.541 +	if (!pDir)
   1.542 +	{
   1.543 +		return;
   1.544 +	}
   1.545 +
   1.546 +	const char *lfile;
   1.547 +	size_t len;
   1.548 +	while (pDir->MoreFiles())
   1.549 +	{
   1.550 +		if (pDir->IsEntryDirectory())
   1.551 +		{
   1.552 +			pDir->NextEntry();
   1.553 +			continue;
   1.554 +		}
   1.555 +
   1.556 +		lfile = pDir->GetEntryName();
   1.557 +		len = strlen(lfile);
   1.558 +		if (len <= 9) /* size of ".autoload" */
   1.559 +		{
   1.560 +			pDir->NextEntry();
   1.561 +			continue;
   1.562 +		}
   1.563 +
   1.564 +		if (strcmp(&lfile[len - 9], ".autoload") != 0)
   1.565 +		{
   1.566 +			pDir->NextEntry();
   1.567 +			continue;
   1.568 +		}
   1.569 +
   1.570 +		char file[PLATFORM_MAX_PATH];
   1.571 +		len = smcore.Format(file, sizeof(file), "%s", lfile);
   1.572 +		strcpy(&file[len - 9], ".ext");
   1.573 +
   1.574 +		LoadAutoExtension(file);
   1.575 +		
   1.576 +		pDir->NextEntry();
   1.577 +	}
   1.578 +}
   1.579 +
   1.580 +IExtension *CExtensionManager::LoadAutoExtension(const char *path)
   1.581 +{
   1.582 +	/* Remove platform extension if it's there. Compat hack. */
   1.583 +	const char *ext = libsys->GetFileExtension(path);
   1.584 +	if (strcmp(ext, PLATFORM_LIB_EXT) == 0)
   1.585 +	{
   1.586 +		char path2[PLATFORM_MAX_PATH];
   1.587 +		smcore.Format(path2, sizeof(path2), "%s", path);
   1.588 +		path2[strlen(path) - strlen(PLATFORM_LIB_EXT) - 1] = '\0';
   1.589 +		return LoadAutoExtension(path);
   1.590 +	}
   1.591 +
   1.592 +	IExtension *pAlready;
   1.593 +	if ((pAlready=FindExtensionByFile(path)) != NULL)
   1.594 +	{
   1.595 +		return pAlready;
   1.596 +	}
   1.597 +
   1.598 +	char error[256];
   1.599 +	CExtension *p = new CLocalExtension(path);
   1.600 +
   1.601 +	/* We put us in the list beforehand so extensions that check for each other
   1.602 +	 * won't recursively load each other.
   1.603 +	 */
   1.604 +	m_Libs.push_back(p);
   1.605 +
   1.606 +	if (!p->Load(error, sizeof(error)) || !p->IsLoaded())
   1.607 +	{
   1.608 +		smcore.LogError("[SM] Unable to load extension \"%s\": %s", path, error);
   1.609 +		p->SetError(error);
   1.610 +	}
   1.611 +
   1.612 +	return p;
   1.613 +}
   1.614 +
   1.615 +IExtension *CExtensionManager::FindExtensionByFile(const char *file)
   1.616 +{
   1.617 +	List<CExtension *>::iterator iter;
   1.618 +	CExtension *pExt;
   1.619 +
   1.620 +	/* Chomp off the path */
   1.621 +	char lookup[PLATFORM_MAX_PATH];
   1.622 +	libsys->GetFileFromPath(lookup, sizeof(lookup), file);
   1.623 +
   1.624 +	for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
   1.625 +	{
   1.626 +		pExt = (*iter);
   1.627 +		if (pExt->IsSameFile(lookup))
   1.628 +		{
   1.629 +			return pExt;
   1.630 +		}
   1.631 +	}
   1.632 +
   1.633 +	return NULL;
   1.634 +}
   1.635 +
   1.636 +IExtension *CExtensionManager::FindExtensionByName(const char *ext)
   1.637 +{
   1.638 +	List<CExtension *>::iterator iter;
   1.639 +	CExtension *pExt;
   1.640 +	IExtensionInterface *pAPI;
   1.641 +	const char *name;
   1.642 +
   1.643 +	for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
   1.644 +	{
   1.645 +		pExt = (*iter);
   1.646 +		if (!pExt->IsLoaded())
   1.647 +		{
   1.648 +			continue;
   1.649 +		}
   1.650 +		if ((pAPI = pExt->GetAPI()) == NULL)
   1.651 +		{
   1.652 +			continue;
   1.653 +		}
   1.654 +		name = pAPI->GetExtensionName();
   1.655 +		if (!name)
   1.656 +		{
   1.657 +			continue;
   1.658 +		}
   1.659 +		if (strcmp(name, ext) == 0)
   1.660 +		{
   1.661 +			return pExt;
   1.662 +		}
   1.663 +	}
   1.664 +
   1.665 +	return NULL;
   1.666 +}
   1.667 +
   1.668 +IExtension *CExtensionManager::LoadExtension(const char *file, char *error, size_t maxlength)
   1.669 +{
   1.670 +	/* Remove platform extension if it's there. Compat hack. */
   1.671 +	const char *ext = libsys->GetFileExtension(file);
   1.672 +	if (strcmp(ext, PLATFORM_LIB_EXT) == 0)
   1.673 +	{
   1.674 +		char path2[PLATFORM_MAX_PATH];
   1.675 +		smcore.Format(path2, sizeof(path2), "%s", file);
   1.676 +		path2[strlen(file) - strlen(PLATFORM_LIB_EXT) - 1] = '\0';
   1.677 +		return LoadExtension(path2, error, maxlength);
   1.678 +	}
   1.679 +
   1.680 +	IExtension *pAlready;
   1.681 +	if ((pAlready=FindExtensionByFile(file)) != NULL)
   1.682 +	{
   1.683 +		return pAlready;
   1.684 +	}
   1.685 +
   1.686 +	CExtension *pExt = new CLocalExtension(file);
   1.687 +
   1.688 +	if (!pExt->Load(error, maxlength) || !pExt->IsLoaded())
   1.689 +	{
   1.690 +		pExt->Unload();
   1.691 +		delete pExt;
   1.692 +		return NULL;
   1.693 +	}
   1.694 +
   1.695 +	/* :TODO: do QueryRunning check if the map is loaded */
   1.696 +
   1.697 +	m_Libs.push_back(pExt);
   1.698 +
   1.699 +	return pExt;
   1.700 +}
   1.701 +
   1.702 +void CExtensionManager::BindDependency(IExtension *pRequester, IfaceInfo *pInfo)
   1.703 +{
   1.704 +	CExtension *pExt = (CExtension *)pRequester;
   1.705 +	CExtension *pOwner = (CExtension *)pInfo->owner;
   1.706 +
   1.707 +	pExt->AddDependency(pInfo);
   1.708 +
   1.709 +	IExtensionInterface *pAPI = pExt->GetAPI();
   1.710 +	if (pAPI && !pAPI->QueryInterfaceDrop(pInfo->iface))
   1.711 +	{
   1.712 +		pOwner->AddChildDependent(pExt, pInfo->iface);
   1.713 +	}
   1.714 +}
   1.715 +
   1.716 +void CExtensionManager::AddRawDependency(IExtension *ext, IdentityToken_t *other, void *iface)
   1.717 +{
   1.718 +	CExtension *pExt = (CExtension *)ext;
   1.719 +	CExtension *pOwner = GetExtensionFromIdent(other);
   1.720 +
   1.721 +	IfaceInfo info;
   1.722 +
   1.723 +	info.iface = (SMInterface *)iface;
   1.724 +	info.owner = pOwner;
   1.725 +
   1.726 +	pExt->AddDependency(&info);
   1.727 +	pOwner->AddChildDependent(pExt, (SMInterface *)iface);
   1.728 +}
   1.729 +
   1.730 +void CExtensionManager::AddInterface(IExtension *pOwner, SMInterface *pInterface)
   1.731 +{
   1.732 +	CExtension *pExt = (CExtension *)pOwner;
   1.733 +
   1.734 +	pExt->AddInterface(pInterface);
   1.735 +}
   1.736 +
   1.737 +void CExtensionManager::BindChildPlugin(IExtension *pParent, SMPlugin *pPlugin)
   1.738 +{
   1.739 +	CExtension *pExt = (CExtension *)pParent;
   1.740 +
   1.741 +	pExt->AddPlugin(static_cast<CPlugin *>(pPlugin));
   1.742 +}
   1.743 +
   1.744 +void CExtensionManager::OnPluginDestroyed(IPlugin *plugin)
   1.745 +{
   1.746 +	List<CExtension *>::iterator iter;
   1.747 +
   1.748 +	for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
   1.749 +	{
   1.750 +		(*iter)->DropRefsTo(static_cast<CPlugin *>(plugin));
   1.751 +	}
   1.752 +}
   1.753 +
   1.754 +CExtension *CExtensionManager::FindByOrder(unsigned int num)
   1.755 +{
   1.756 +	if (num < 1 || num > m_Libs.size())
   1.757 +	{
   1.758 +		return NULL;
   1.759 +	}
   1.760 +
   1.761 +	List<CExtension *>::iterator iter = m_Libs.begin();
   1.762 +
   1.763 +	while (iter != m_Libs.end())
   1.764 +	{
   1.765 +		if (--num == 0)
   1.766 +		{
   1.767 +			return (*iter);
   1.768 +		}
   1.769 +		iter++;
   1.770 +	}
   1.771 +
   1.772 +	return NULL;
   1.773 +}
   1.774 +
   1.775 +bool CExtensionManager::UnloadExtension(IExtension *_pExt)
   1.776 +{
   1.777 +	if (!_pExt)
   1.778 +	{
   1.779 +		return false;
   1.780 +	}
   1.781 +
   1.782 +	CExtension *pExt = (CExtension *)_pExt;
   1.783 +
   1.784 +	if (m_Libs.find(pExt) == m_Libs.end())
   1.785 +	{
   1.786 +		return false;
   1.787 +	}
   1.788 +
   1.789 +	/* Tell it to unload */
   1.790 +	if (pExt->IsLoaded())
   1.791 +	{
   1.792 +		IExtensionInterface *pAPI = pExt->GetAPI();
   1.793 +		pAPI->OnExtensionUnload();
   1.794 +	}
   1.795 +
   1.796 +	/* First remove us from internal lists */
   1.797 +	g_ShareSys.RemoveInterfaces(_pExt);
   1.798 +	m_Libs.remove(pExt);
   1.799 +
   1.800 +	List<CExtension *> UnloadQueue;
   1.801 +
   1.802 +	/* Handle dependencies */
   1.803 +	if (pExt->IsLoaded())
   1.804 +	{
   1.805 +		/* Unload any dependent plugins */
   1.806 +		List<CPlugin *>::iterator p_iter = pExt->m_Dependents.begin();
   1.807 +		while (p_iter != pExt->m_Dependents.end())
   1.808 +		{
   1.809 +			/* We have to manually unlink ourselves here, since we're no longer being managed */
   1.810 +			scripts->UnloadPlugin((*p_iter));
   1.811 +			p_iter = pExt->m_Dependents.erase(p_iter);
   1.812 +		}
   1.813 +
   1.814 +		List<String>::iterator s_iter;
   1.815 +		for (s_iter = pExt->m_Libraries.begin();
   1.816 +			 s_iter != pExt->m_Libraries.end();
   1.817 +			 s_iter++)
   1.818 +		{
   1.819 +			scripts->OnLibraryAction((*s_iter).c_str(), LibraryAction_Removed);
   1.820 +		}
   1.821 +
   1.822 +		/* Notify and/or unload all dependencies */
   1.823 +		List<CExtension *>::iterator c_iter;
   1.824 +		CExtension *pDep;
   1.825 +		IExtensionInterface *pAPI;
   1.826 +		for (c_iter = m_Libs.begin(); c_iter != m_Libs.end(); c_iter++)
   1.827 +		{
   1.828 +			pDep = (*c_iter);
   1.829 +			if ((pAPI=pDep->GetAPI()) == NULL)
   1.830 +			{
   1.831 +				continue;
   1.832 +			}
   1.833 +			if (pDep == pExt)
   1.834 +			{
   1.835 +				continue;
   1.836 +			}
   1.837 +			/* Now, get its dependency list */
   1.838 +			bool dropped = false;
   1.839 +			List<IfaceInfo>::iterator i_iter = pDep->m_Deps.begin();
   1.840 +			while (i_iter != pDep->m_Deps.end())
   1.841 +			{
   1.842 +				if ((*i_iter).owner == _pExt)
   1.843 +				{
   1.844 +					if (!pAPI->QueryInterfaceDrop((*i_iter).iface))
   1.845 +					{
   1.846 +						if (!dropped)
   1.847 +						{
   1.848 +							dropped = true;
   1.849 +							UnloadQueue.push_back(pDep);
   1.850 +						}
   1.851 +					}
   1.852 +					pAPI->NotifyInterfaceDrop((*i_iter).iface);
   1.853 +					i_iter = pDep->m_Deps.erase(i_iter);
   1.854 +				}
   1.855 +				else
   1.856 +				{
   1.857 +					i_iter++;
   1.858 +				}
   1.859 +			}
   1.860 +			/* Flush out any back references to this plugin */
   1.861 +			i_iter = pDep->m_ChildDeps.begin();
   1.862 +			while (i_iter != pDep->m_ChildDeps.end())
   1.863 +			{
   1.864 +				if ((*i_iter).owner == pExt)
   1.865 +				{
   1.866 +					i_iter = pDep->m_ChildDeps.erase(i_iter);
   1.867 +				}
   1.868 +				else
   1.869 +				{
   1.870 +					i_iter++;
   1.871 +				}
   1.872 +			}
   1.873 +		}
   1.874 +
   1.875 +		/* Unbind our natives from Core */
   1.876 +		pExt->DropEverything();
   1.877 +	}
   1.878 +
   1.879 +	IdentityToken_t *pIdentity;
   1.880 +	if ((pIdentity = pExt->GetIdentity()) != NULL)
   1.881 +	{
   1.882 +		SMGlobalClass *glob = SMGlobalClass::head;
   1.883 +		while (glob)
   1.884 +		{
   1.885 +			glob->OnSourceModIdentityDropped(pIdentity);
   1.886 +			glob = glob->m_pGlobalClassNext;
   1.887 +		}
   1.888 +	}
   1.889 +
   1.890 +	pExt->Unload();
   1.891 +	delete pExt;
   1.892 +
   1.893 +	List<CExtension *>::iterator iter;
   1.894 +	for (iter=UnloadQueue.begin(); iter!=UnloadQueue.end(); iter++)
   1.895 +	{
   1.896 +		/* NOTE: This is safe because the unload function backs out of anything not present */
   1.897 +		UnloadExtension((*iter));
   1.898 +	}
   1.899 +
   1.900 +	return true;
   1.901 +}
   1.902 +
   1.903 +void CExtensionManager::MarkAllLoaded()
   1.904 +{
   1.905 +	List<CExtension *>::iterator iter;
   1.906 +	CExtension *pExt;
   1.907 +
   1.908 +	for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
   1.909 +	{
   1.910 +		pExt = (*iter);
   1.911 +		if (!pExt->IsLoaded())
   1.912 +		{
   1.913 +			continue;
   1.914 +		}
   1.915 +		if (pExt->m_bFullyLoaded)
   1.916 +		{
   1.917 +			continue;
   1.918 +		}
   1.919 +		pExt->MarkAllLoaded();
   1.920 +	}
   1.921 +}
   1.922 +
   1.923 +void CExtensionManager::AddDependency(IExtension *pSource, const char *file, bool required, bool autoload)
   1.924 +{
   1.925 +	/* This function doesn't really need to do anything now.  We make sure the 
   1.926 +	 * other extension is loaded, but handling of dependencies is really done 
   1.927 +	 * by the interface fetcher.
   1.928 +	 */
   1.929 +	if (required || autoload)
   1.930 +	{
   1.931 +		LoadAutoExtension(file);
   1.932 +	}
   1.933 +}
   1.934 +
   1.935 +void CExtensionManager::OnRootConsoleCommand(const char *cmdname, const CCommand &command)
   1.936 +{
   1.937 +	int argcount = smcore.Argc(command);
   1.938 +	if (argcount >= 3)
   1.939 +	{
   1.940 +		const char *cmd = smcore.Arg(command, 2);
   1.941 +		if (strcmp(cmd, "list") == 0)
   1.942 +		{
   1.943 +			List<CExtension *>::iterator iter;
   1.944 +			CExtension *pExt;
   1.945 +			unsigned int num = 1;
   1.946 +			switch (m_Libs.size())
   1.947 +			{
   1.948 +			case 1:
   1.949 +				{
   1.950 +					rootmenu->ConsolePrint("[SM] Displaying 1 extension:");
   1.951 +					break;
   1.952 +				}
   1.953 +			case 0:
   1.954 +				{
   1.955 +					rootmenu->ConsolePrint("[SM] No extensions are loaded.");
   1.956 +					break;
   1.957 +				}
   1.958 +			default:
   1.959 +				{
   1.960 +					rootmenu->ConsolePrint("[SM] Displaying %d extensions:", m_Libs.size());
   1.961 +					break;
   1.962 +				}
   1.963 +			}
   1.964 +			for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++,num++)
   1.965 +			{
   1.966 +				pExt = (*iter);
   1.967 +				if (pExt->IsLoaded())
   1.968 +				{
   1.969 +					char error[255];
   1.970 +					if (!pExt->IsRunning(error, sizeof(error)))
   1.971 +					{
   1.972 +						rootmenu->ConsolePrint("[%02d] <FAILED> file \"%s\": %s", num, pExt->GetFilename(), error);
   1.973 +					}
   1.974 +					else
   1.975 +					{
   1.976 +						IExtensionInterface *pAPI = pExt->GetAPI();
   1.977 +						const char *name = pAPI->GetExtensionName();
   1.978 +						const char *version = pAPI->GetExtensionVerString();
   1.979 +						const char *descr = pAPI->GetExtensionDescription();
   1.980 +						rootmenu->ConsolePrint("[%02d] %s (%s): %s", num, name, version, descr);
   1.981 +					}
   1.982 +				} else {
   1.983 +					rootmenu->ConsolePrint("[%02d] <FAILED> file \"%s\": %s", num, pExt->GetFilename(), pExt->m_Error.c_str());
   1.984 +				}
   1.985 +			}
   1.986 +			return;
   1.987 +		}
   1.988 +		else if (strcmp(cmd, "load") == 0)
   1.989 +		{
   1.990 +			if (argcount < 4)
   1.991 +			{
   1.992 +				rootmenu->ConsolePrint("[SM] Usage: sm exts load <file>");
   1.993 +				return;
   1.994 +			}
   1.995 +
   1.996 +			const char *filename = smcore.Arg(command, 3);
   1.997 +			char path[PLATFORM_MAX_PATH];
   1.998 +			char error[256];
   1.999 +
  1.1000 +			smcore.Format(path, sizeof(path), "%s%s%s", filename, !strstr(filename, ".ext") ? ".ext" : "",
  1.1001 +				!strstr(filename, "." PLATFORM_LIB_EXT) ? "." PLATFORM_LIB_EXT : "");
  1.1002 +			
  1.1003 +			if (FindExtensionByFile(path) != NULL)
  1.1004 +			{
  1.1005 +				rootmenu->ConsolePrint("[SM] Extension %s is already loaded.", path);
  1.1006 +				return;
  1.1007 +			}
  1.1008 +			
  1.1009 +			if (LoadExtension(path, error, sizeof(error)))
  1.1010 +			{
  1.1011 +				rootmenu->ConsolePrint("[SM] Loaded extension %s successfully.", path);
  1.1012 +			} else
  1.1013 +			{
  1.1014 +				rootmenu->ConsolePrint("[SM] Extension %s failed to load: %s", path, error);
  1.1015 +			}
  1.1016 +			
  1.1017 +			return;
  1.1018 +		}
  1.1019 +		else if (strcmp(cmd, "info") == 0)
  1.1020 +		{
  1.1021 +			if (argcount < 4)
  1.1022 +			{
  1.1023 +				rootmenu->ConsolePrint("[SM] Usage: sm exts info <#>");
  1.1024 +				return;
  1.1025 +			}
  1.1026 +
  1.1027 +			const char *sId = smcore.Arg(command, 3);
  1.1028 +			unsigned int id = atoi(sId);
  1.1029 +			if (id <= 0)
  1.1030 +			{
  1.1031 +				rootmenu->ConsolePrint("[SM] Usage: sm exts info <#>");
  1.1032 +				return;
  1.1033 +			}
  1.1034 +
  1.1035 +			if (m_Libs.size() == 0)
  1.1036 +			{
  1.1037 +				rootmenu->ConsolePrint("[SM] No extensions are loaded.");
  1.1038 +				return;
  1.1039 +			}
  1.1040 +
  1.1041 +			if (id > m_Libs.size())
  1.1042 +			{
  1.1043 +				rootmenu->ConsolePrint("[SM] No extension was found with id %d.", id);
  1.1044 +				return;
  1.1045 +			}
  1.1046 +
  1.1047 +			List<CExtension *>::iterator iter = m_Libs.begin();
  1.1048 +			CExtension *pExt = NULL;
  1.1049 +			while (iter != m_Libs.end())
  1.1050 +			{
  1.1051 +				if (--id == 0)
  1.1052 +				{
  1.1053 +					pExt = (*iter);
  1.1054 +					break;
  1.1055 +				}
  1.1056 +				iter++;
  1.1057 +			}
  1.1058 +			/* This should never happen */
  1.1059 +			if (!pExt)
  1.1060 +			{
  1.1061 +				rootmenu->ConsolePrint("[SM] No extension was found with id %d.", id);
  1.1062 +				return;
  1.1063 +			}
  1.1064 +
  1.1065 +			if (!pExt->IsLoaded())
  1.1066 +			{
  1.1067 +				rootmenu->ConsolePrint(" File: %s", pExt->GetFilename());
  1.1068 +				rootmenu->ConsolePrint(" Loaded: No (%s)", pExt->m_Error.c_str());
  1.1069 +			}
  1.1070 +			else
  1.1071 +			{
  1.1072 +				char error[255];
  1.1073 +				if (!pExt->IsRunning(error, sizeof(error)))
  1.1074 +				{
  1.1075 +					rootmenu->ConsolePrint(" File: %s", pExt->GetFilename());
  1.1076 +					rootmenu->ConsolePrint(" Loaded: Yes");
  1.1077 +					rootmenu->ConsolePrint(" Running: No (%s)", error);
  1.1078 +				}
  1.1079 +				else
  1.1080 +				{
  1.1081 +					IExtensionInterface *pAPI = pExt->GetAPI();
  1.1082 +					rootmenu->ConsolePrint(" File: %s", pExt->GetFilename());
  1.1083 +					rootmenu->ConsolePrint(" Loaded: Yes (version %s)", pAPI->GetExtensionVerString());
  1.1084 +					rootmenu->ConsolePrint(" Name: %s (%s)", pAPI->GetExtensionName(), pAPI->GetExtensionDescription());
  1.1085 +					rootmenu->ConsolePrint(" Author: %s (%s)", pAPI->GetExtensionAuthor(), pAPI->GetExtensionURL());
  1.1086 +					rootmenu->ConsolePrint(" Binary info: API version %d (compiled %s)", pAPI->GetExtensionVersion(), pAPI->GetExtensionDateString());
  1.1087 +
  1.1088 +					if (pExt->IsExternal())
  1.1089 +					{
  1.1090 +						rootmenu->ConsolePrint(" Method: Loaded by Metamod:Source, attached to SourceMod");
  1.1091 +					}
  1.1092 +					else if (pAPI->IsMetamodExtension())
  1.1093 +					{
  1.1094 +						rootmenu->ConsolePrint(" Method: Loaded by SourceMod, attached to Metamod:Source");
  1.1095 +					}
  1.1096 +					else
  1.1097 +					{
  1.1098 +						rootmenu->ConsolePrint(" Method: Loaded by SourceMod");
  1.1099 +					}
  1.1100 +				}
  1.1101 +			}
  1.1102 +			return;
  1.1103 +		}
  1.1104 +		else if (strcmp(cmd, "unload") == 0)
  1.1105 +		{
  1.1106 +			if (argcount < 4)
  1.1107 +			{
  1.1108 +				rootmenu->ConsolePrint("[SM] Usage: sm exts unload <#> [code]");
  1.1109 +				return;
  1.1110 +			}
  1.1111 +
  1.1112 +			const char *arg = smcore.Arg(command, 3);
  1.1113 +			unsigned int num = atoi(arg);
  1.1114 +			CExtension *pExt = FindByOrder(num);
  1.1115 +
  1.1116 +			if (!pExt)
  1.1117 +			{
  1.1118 +				rootmenu->ConsolePrint("[SM] Extension number %d was not found.", num);
  1.1119 +				return;
  1.1120 +			}
  1.1121 +
  1.1122 +			if (argcount > 4 && pExt->unload_code)
  1.1123 +			{
  1.1124 +				const char *unload = smcore.Arg(command, 4);
  1.1125 +				if (pExt->unload_code == (unsigned)atoi(unload))
  1.1126 +				{
  1.1127 +					char filename[PLATFORM_MAX_PATH];
  1.1128 +					snprintf(filename, PLATFORM_MAX_PATH, "%s", pExt->GetFilename());
  1.1129 +					UnloadExtension(pExt);
  1.1130 +					rootmenu->ConsolePrint("[SM] Extension %s is now unloaded.", filename);
  1.1131 +				}
  1.1132 +				else
  1.1133 +				{
  1.1134 +					rootmenu->ConsolePrint("[SM] Please try again, the correct unload code is \"%d\"", pExt->unload_code);
  1.1135 +				}
  1.1136 +				return;
  1.1137 +			}
  1.1138 +
  1.1139 +			if (!pExt->IsLoaded() 
  1.1140 +				|| (!pExt->m_ChildDeps.size() && !pExt->m_Dependents.size()))
  1.1141 +			{
  1.1142 +				char filename[PLATFORM_MAX_PATH];
  1.1143 +				snprintf(filename, PLATFORM_MAX_PATH, "%s", pExt->GetFilename());
  1.1144 +				UnloadExtension(pExt);
  1.1145 +				rootmenu->ConsolePrint("[SM] Extension %s is now unloaded.", filename);
  1.1146 +				return;
  1.1147 +			}
  1.1148 +			else
  1.1149 +			{
  1.1150 +				List<CPlugin *> plugins;
  1.1151 +				if (pExt->m_ChildDeps.size())
  1.1152 +				{
  1.1153 +					rootmenu->ConsolePrint("[SM] Unloading %s will unload the following extensions: ", pExt->GetFilename());
  1.1154 +					List<CExtension *>::iterator iter;
  1.1155 +					CExtension *pOther;
  1.1156 +					/* Get list of all extensions */
  1.1157 +					for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
  1.1158 +					{
  1.1159 +						List<IfaceInfo>::iterator i_iter;
  1.1160 +						pOther = (*iter);
  1.1161 +						if (!pOther->IsLoaded() || pOther == pExt)
  1.1162 +						{
  1.1163 +							continue;
  1.1164 +						}
  1.1165 +						/* Get their dependencies */
  1.1166 +						for (i_iter=pOther->m_Deps.begin();
  1.1167 +							 i_iter!=pOther->m_Deps.end();
  1.1168 +							 i_iter++)
  1.1169 +						{
  1.1170 +							/* Is this dependency to us? */
  1.1171 +							if ((*i_iter).owner != pExt)
  1.1172 +							{
  1.1173 +								continue;
  1.1174 +							}
  1.1175 +							/* Will our dependent care? */
  1.1176 +							if (!pExt->GetAPI()->QueryInterfaceDrop((*i_iter).iface))
  1.1177 +							{
  1.1178 +								rootmenu->ConsolePrint(" -> %s", pExt->GetFilename());
  1.1179 +								/* Add to plugin unload list */
  1.1180 +								List<CPlugin *>::iterator p_iter;
  1.1181 +								for (p_iter=pOther->m_Dependents.begin();
  1.1182 +									 p_iter!=pOther->m_Dependents.end();
  1.1183 +									 p_iter++)
  1.1184 +								{
  1.1185 +									if (plugins.find((*p_iter)) == plugins.end())
  1.1186 +									{
  1.1187 +										plugins.push_back((*p_iter));
  1.1188 +									}
  1.1189 +								}
  1.1190 +							}
  1.1191 +						}
  1.1192 +					}
  1.1193 +				}
  1.1194 +				if (pExt->m_Dependents.size())
  1.1195 +				{
  1.1196 +					rootmenu->ConsolePrint("[SM] Unloading %s will unload the following plugins: ", pExt->GetFilename());
  1.1197 +					List<CPlugin *>::iterator iter;
  1.1198 +					CPlugin *pPlugin;
  1.1199 +					for (iter = pExt->m_Dependents.begin(); iter != pExt->m_Dependents.end(); iter++)
  1.1200 +					{
  1.1201 +						pPlugin = (*iter);
  1.1202 +						if (plugins.find(pPlugin) == plugins.end())
  1.1203 +						{
  1.1204 +							plugins.push_back(pPlugin);
  1.1205 +						}
  1.1206 +					}
  1.1207 +					for (iter = plugins.begin(); iter != plugins.end(); iter++)
  1.1208 +					{
  1.1209 +						pPlugin = (*iter);
  1.1210 +						rootmenu->ConsolePrint(" -> %s", pPlugin->GetFilename());
  1.1211 +					}
  1.1212 +				}
  1.1213 +				srand(static_cast<int>(time(NULL)));
  1.1214 +				pExt->unload_code = (rand() % 877) + 123;	//123 to 999
  1.1215 +				rootmenu->ConsolePrint("[SM] To verify unloading %s, please use the following: ", pExt->GetFilename());
  1.1216 +				rootmenu->ConsolePrint("[SM] sm exts unload %d %d", num, pExt->unload_code);
  1.1217 +
  1.1218 +				return;
  1.1219 +			}
  1.1220 +		}
  1.1221 +		else if (strcmp(cmd, "reload") == 0)
  1.1222 +		{
  1.1223 +			if (argcount < 4)
  1.1224 +			{
  1.1225 +				rootmenu->ConsolePrint("[SM] Usage: sm exts reload <#>");
  1.1226 +				return;
  1.1227 +			}
  1.1228 +			
  1.1229 +			const char *arg = smcore.Arg(command, 3);
  1.1230 +			unsigned int num = atoi(arg);
  1.1231 +			CExtension *pExt = FindByOrder(num);
  1.1232 +
  1.1233 +			if (!pExt)
  1.1234 +			{
  1.1235 +				rootmenu->ConsolePrint("[SM] Extension number %d was not found.", num);
  1.1236 +				return;
  1.1237 +			}
  1.1238 +			
  1.1239 +			if (pExt->IsLoaded())
  1.1240 +			{
  1.1241 +				char filename[PLATFORM_MAX_PATH];
  1.1242 +				char error[255];
  1.1243 +				
  1.1244 +				snprintf(filename, PLATFORM_MAX_PATH, "%s", pExt->GetFilename());
  1.1245 +				
  1.1246 +				if (pExt->Reload(error, sizeof(error)))
  1.1247 +				{
  1.1248 +					rootmenu->ConsolePrint("[SM] Extension %s is now reloaded.", filename);
  1.1249 +				}
  1.1250 +				else
  1.1251 +				{
  1.1252 +					rootmenu->ConsolePrint("[SM] Extension %s failed to reload: %s", filename, error);
  1.1253 +				}
  1.1254 +					
  1.1255 +				return;
  1.1256 +			} 
  1.1257 +			else
  1.1258 +			{
  1.1259 +				rootmenu->ConsolePrint("[SM] Extension %s is not loaded.", pExt->GetFilename());
  1.1260 +				
  1.1261 +				return;
  1.1262 +			}
  1.1263 +			
  1.1264 +		}
  1.1265 +	}
  1.1266 +
  1.1267 +	rootmenu->ConsolePrint("SourceMod Extensions Menu:");
  1.1268 +	rootmenu->DrawGenericOption("info", "Extra extension information");
  1.1269 +	rootmenu->DrawGenericOption("list", "List extensions");
  1.1270 +	rootmenu->DrawGenericOption("load", "Load an extension");
  1.1271 +	rootmenu->DrawGenericOption("reload", "Reload an extension");
  1.1272 +	rootmenu->DrawGenericOption("unload", "Unload an extension");
  1.1273 +}
  1.1274 +
  1.1275 +CExtension *CExtensionManager::GetExtensionFromIdent(IdentityToken_t *ptr)
  1.1276 +{
  1.1277 +	if (ptr->type == g_ExtType)
  1.1278 +	{
  1.1279 +		return (CExtension *)(ptr->ptr);
  1.1280 +	}
  1.1281 +
  1.1282 +	return NULL;
  1.1283 +}
  1.1284 +
  1.1285 +CExtensionManager::CExtensionManager()
  1.1286 +{
  1.1287 +}
  1.1288 +
  1.1289 +CExtensionManager::~CExtensionManager()
  1.1290 +{
  1.1291 +}
  1.1292 +
  1.1293 +void CExtensionManager::AddLibrary(IExtension *pSource, const char *library)
  1.1294 +{
  1.1295 +	CExtension *pExt = (CExtension *)pSource;
  1.1296 +	pExt->AddLibrary(library);
  1.1297 +	scripts->OnLibraryAction(library, LibraryAction_Added);
  1.1298 +}
  1.1299 +
  1.1300 +bool CExtensionManager::LibraryExists(const char *library)
  1.1301 +{
  1.1302 +	CExtension *pExt;
  1.1303 +
  1.1304 +	for (List<CExtension *>::iterator iter = m_Libs.begin();
  1.1305 +		 iter != m_Libs.end();
  1.1306 +		 iter++)
  1.1307 +	{
  1.1308 +		pExt = (*iter);
  1.1309 +		for (List<String>::iterator s_iter = pExt->m_Libraries.begin();
  1.1310 +			 s_iter != pExt->m_Libraries.end();
  1.1311 +			 s_iter++)
  1.1312 +		{
  1.1313 +			if ((*s_iter).compare(library) == 0)
  1.1314 +			{
  1.1315 +				return true;
  1.1316 +			}
  1.1317 +		}
  1.1318 +	}
  1.1319 +
  1.1320 +	return false;
  1.1321 +}
  1.1322 +
  1.1323 +IExtension *CExtensionManager::LoadExternal(IExtensionInterface *pInterface,
  1.1324 +											const char *filepath,
  1.1325 +											const char *filename,
  1.1326 +											char *error,
  1.1327 +											size_t maxlength)
  1.1328 +{
  1.1329 +	IExtension *pAlready;
  1.1330 +	if ((pAlready=FindExtensionByFile(filename)) != NULL)
  1.1331 +	{
  1.1332 +		return pAlready;
  1.1333 +	}
  1.1334 +
  1.1335 +	CExtension *pExt = new CRemoteExtension(pInterface, filename, filepath);
  1.1336 +
  1.1337 +	if (!pExt->Load(error, maxlength) || !pExt->IsLoaded())
  1.1338 +	{
  1.1339 +		pExt->Unload();
  1.1340 +		delete pExt;
  1.1341 +		return NULL;
  1.1342 +	}
  1.1343 +
  1.1344 +	m_Libs.push_back(pExt);
  1.1345 +
  1.1346 +	return pExt;
  1.1347 +}
  1.1348 +
  1.1349 +void CExtensionManager::CallOnCoreMapStart(edict_t *pEdictList, int edictCount, int clientMax)
  1.1350 +{
  1.1351 +	IExtensionInterface *pAPI;
  1.1352 +	List<CExtension *>::iterator iter;
  1.1353 +
  1.1354 +	for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
  1.1355 +	{
  1.1356 +		if ((pAPI = (*iter)->GetAPI()) == NULL)
  1.1357 +		{
  1.1358 +			continue;
  1.1359 +		}
  1.1360 +		if (pAPI->GetExtensionVersion() > 3)
  1.1361 +		{
  1.1362 +			pAPI->OnCoreMapStart(pEdictList, edictCount, clientMax);
  1.1363 +		}
  1.1364 +	}
  1.1365 +}
  1.1366 +
  1.1367 +void CExtensionManager::ListExtensions(CVector<IExtension *> *list)
  1.1368 +{
  1.1369 +	for (List<CExtension *>::iterator iter = m_Libs.begin(); iter != m_Libs.end(); iter++)
  1.1370 +	{
  1.1371 +		list->push_back(*iter);
  1.1372 +	}
  1.1373 +}
  1.1374 +
  1.1375 +bool CLocalExtension::IsSameFile(const char *file)
  1.1376 +{
  1.1377 +	/* Only care about the shortened name. */
  1.1378 +	return strcmp(file, m_File.c_str()) == 0;
  1.1379 +}
  1.1380 +
  1.1381 +bool CRemoteExtension::IsSameFile(const char *file)
  1.1382 +{
  1.1383 +	/* :TODO: this could be better, but no one uses this API anyway. */
  1.1384 +	return strcmp(file, m_Path.c_str()) == 0;
  1.1385 +}
  1.1386 +