IExtension *CExtensionManager::FindExtensionByName(const char *ext)
{
List<CExtension *>::iterator iter;
CExtension *pExt;
IExtensionInterface *pAPI;
const char *name;
for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
{
pExt = (*iter);
if (!pExt->IsLoaded())
{
continue;
}
if ((pAPI = pExt->GetAPI()) == NULL)
{
continue;
}
name = pAPI->GetExtensionName();
if (!name)
{
continue;
}
if (strcmp(name, ext) == 0)
{
return pExt;
}
}
return NULL;
}
void CExtensionManager::BindDependency(IExtension *pRequester, IfaceInfo *pInfo)
{
CExtension *pExt = (CExtension *)pRequester;
CExtension *pOwner = (CExtension *)pInfo->owner;
pExt->AddDependency(pInfo);
IExtensionInterface *pAPI = pExt->GetAPI();
if (pAPI && !pAPI->QueryInterfaceDrop(pInfo->iface))
{
pOwner->AddChildDependent(pExt, pInfo->iface);
}
}
void CExtensionManager::OnRootConsoleCommand(const char *cmdname, const CCommand &command)
{
int argcount = smcore.Argc(command);
if (argcount >= 3)
{
const char *cmd = smcore.Arg(command, 2);
if (strcmp(cmd, "list") == 0)
{
List<CExtension *>::iterator iter;
CExtension *pExt;
unsigned int num = 1;
switch (m_Libs.size())
{
case 1:
{
rootmenu->ConsolePrint("[SM] Displaying 1 extension:");
break;
}
case 0:
{
rootmenu->ConsolePrint("[SM] No extensions are loaded.");
break;
}
default:
{
rootmenu->ConsolePrint("[SM] Displaying %d extensions:", m_Libs.size());
break;
}
}
for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++,num++)
{
pExt = (*iter);
if (pExt->IsLoaded())
{
char error[255];
if (!pExt->IsRunning(error, sizeof(error)))
{
rootmenu->ConsolePrint("[%02d] <FAILED> file \"%s\": %s", num, pExt->GetFilename(), error);
}
else
{
IExtensionInterface *pAPI = pExt->GetAPI();
const char *name = pAPI->GetExtensionName();
const char *version = pAPI->GetExtensionVerString();
const char *descr = pAPI->GetExtensionDescription();
rootmenu->ConsolePrint("[%02d] %s (%s): %s", num, name, version, descr);
}
} else {
rootmenu->ConsolePrint("[%02d] <FAILED> file \"%s\": %s", num, pExt->GetFilename(), pExt->m_Error.c_str());
}
}
return;
}
else if (strcmp(cmd, "load") == 0)
{
if (argcount < 4)
{
rootmenu->ConsolePrint("[SM] Usage: sm exts load <file>");
return;
}
const char *filename = smcore.Arg(command, 3);
char path[PLATFORM_MAX_PATH];
char error[256];
smcore.Format(path, sizeof(path), "%s%s%s", filename, !strstr(filename, ".ext") ? ".ext" : "",
!strstr(filename, "." PLATFORM_LIB_EXT) ? "." PLATFORM_LIB_EXT : "");
if (FindExtensionByFile(path) != NULL)
{
rootmenu->ConsolePrint("[SM] Extension %s is already loaded.", path);
return;
}
if (LoadExtension(path, error, sizeof(error)))
{
rootmenu->ConsolePrint("[SM] Loaded extension %s successfully.", path);
} else
{
rootmenu->ConsolePrint("[SM] Extension %s failed to load: %s", path, error);
}
return;
}
else if (strcmp(cmd, "info") == 0)
{
if (argcount < 4)
{
rootmenu->ConsolePrint("[SM] Usage: sm exts info <#>");
return;
}
const char *sId = smcore.Arg(command, 3);
unsigned int id = atoi(sId);
if (id <= 0)
{
rootmenu->ConsolePrint("[SM] Usage: sm exts info <#>");
return;
}
if (m_Libs.size() == 0)
{
rootmenu->ConsolePrint("[SM] No extensions are loaded.");
return;
}
if (id > m_Libs.size())
{
rootmenu->ConsolePrint("[SM] No extension was found with id %d.", id);
return;
}
List<CExtension *>::iterator iter = m_Libs.begin();
CExtension *pExt = NULL;
while (iter != m_Libs.end())
{
if (--id == 0)
{
pExt = (*iter);
break;
}
iter++;
}
/* This should never happen */
if (!pExt)
{
rootmenu->ConsolePrint("[SM] No extension was found with id %d.", id);
return;
}
if (!pExt->IsLoaded())
{
rootmenu->ConsolePrint(" File: %s", pExt->GetFilename());
rootmenu->ConsolePrint(" Loaded: No (%s)", pExt->m_Error.c_str());
}
else
{
char error[255];
if (!pExt->IsRunning(error, sizeof(error)))
{
rootmenu->ConsolePrint(" File: %s", pExt->GetFilename());
rootmenu->ConsolePrint(" Loaded: Yes");
rootmenu->ConsolePrint(" Running: No (%s)", error);
}
else
{
IExtensionInterface *pAPI = pExt->GetAPI();
rootmenu->ConsolePrint(" File: %s", pExt->GetFilename());
rootmenu->ConsolePrint(" Loaded: Yes (version %s)", pAPI->GetExtensionVerString());
rootmenu->ConsolePrint(" Name: %s (%s)", pAPI->GetExtensionName(), pAPI->GetExtensionDescription());
rootmenu->ConsolePrint(" Author: %s (%s)", pAPI->GetExtensionAuthor(), pAPI->GetExtensionURL());
rootmenu->ConsolePrint(" Binary info: API version %d (compiled %s)", pAPI->GetExtensionVersion(), pAPI->GetExtensionDateString());
if (pExt->IsExternal())
{
rootmenu->ConsolePrint(" Method: Loaded by Metamod:Source, attached to SourceMod");
}
else if (pAPI->IsMetamodExtension())
{
rootmenu->ConsolePrint(" Method: Loaded by SourceMod, attached to Metamod:Source");
}
else
{
rootmenu->ConsolePrint(" Method: Loaded by SourceMod");
}
}
}
return;
}
else if (strcmp(cmd, "unload") == 0)
{
if (argcount < 4)
{
rootmenu->ConsolePrint("[SM] Usage: sm exts unload <#> [code]");
return;
}
const char *arg = smcore.Arg(command, 3);
unsigned int num = atoi(arg);
CExtension *pExt = FindByOrder(num);
if (!pExt)
{
rootmenu->ConsolePrint("[SM] Extension number %d was not found.", num);
return;
}
if (argcount > 4 && pExt->unload_code)
{
const char *unload = smcore.Arg(command, 4);
if (pExt->unload_code == (unsigned)atoi(unload))
{
char filename[PLATFORM_MAX_PATH];
snprintf(filename, PLATFORM_MAX_PATH, "%s", pExt->GetFilename());
UnloadExtension(pExt);
rootmenu->ConsolePrint("[SM] Extension %s is now unloaded.", filename);
}
else
{
rootmenu->ConsolePrint("[SM] Please try again, the correct unload code is \"%d\"", pExt->unload_code);
}
return;
}
if (!pExt->IsLoaded()
|| (!pExt->m_ChildDeps.size() && !pExt->m_Dependents.size()))
{
char filename[PLATFORM_MAX_PATH];
snprintf(filename, PLATFORM_MAX_PATH, "%s", pExt->GetFilename());
UnloadExtension(pExt);
rootmenu->ConsolePrint("[SM] Extension %s is now unloaded.", filename);
return;
}
else
{
List<CPlugin *> plugins;
if (pExt->m_ChildDeps.size())
{
rootmenu->ConsolePrint("[SM] Unloading %s will unload the following extensions: ", pExt->GetFilename());
List<CExtension *>::iterator iter;
CExtension *pOther;
/* Get list of all extensions */
for (iter=m_Libs.begin(); iter!=m_Libs.end(); iter++)
{
List<IfaceInfo>::iterator i_iter;
pOther = (*iter);
if (!pOther->IsLoaded() || pOther == pExt)
{
continue;
}
/* Get their dependencies */
for (i_iter=pOther->m_Deps.begin();
i_iter!=pOther->m_Deps.end();
i_iter++)
{
/* Is this dependency to us? */
if ((*i_iter).owner != pExt)
{
continue;
}
/* Will our dependent care? */
if (!pExt->GetAPI()->QueryInterfaceDrop((*i_iter).iface))
{
rootmenu->ConsolePrint(" -> %s", pExt->GetFilename());
/* Add to plugin unload list */
List<CPlugin *>::iterator p_iter;
for (p_iter=pOther->m_Dependents.begin();
p_iter!=pOther->m_Dependents.end();
p_iter++)
{
if (plugins.find((*p_iter)) == plugins.end())
{
plugins.push_back((*p_iter));
}
}
}
}
}
}
if (pExt->m_Dependents.size())
{
rootmenu->ConsolePrint("[SM] Unloading %s will unload the following plugins: ", pExt->GetFilename());
List<CPlugin *>::iterator iter;
CPlugin *pPlugin;
for (iter = pExt->m_Dependents.begin(); iter != pExt->m_Dependents.end(); iter++)
{
pPlugin = (*iter);
if (plugins.find(pPlugin) == plugins.end())
{
plugins.push_back(pPlugin);
}
}
for (iter = plugins.begin(); iter != plugins.end(); iter++)
{
pPlugin = (*iter);
rootmenu->ConsolePrint(" -> %s", pPlugin->GetFilename());
}
}
srand(static_cast<int>(time(NULL)));
pExt->unload_code = (rand() % 877) + 123; //123 to 999
rootmenu->ConsolePrint("[SM] To verify unloading %s, please use the following: ", pExt->GetFilename());
rootmenu->ConsolePrint("[SM] sm exts unload %d %d", num, pExt->unload_code);
return;
}
}
else if (strcmp(cmd, "reload") == 0)
{
if (argcount < 4)
{
rootmenu->ConsolePrint("[SM] Usage: sm exts reload <#>");
return;
}
const char *arg = smcore.Arg(command, 3);
unsigned int num = atoi(arg);
CExtension *pExt = FindByOrder(num);
if (!pExt)
{
rootmenu->ConsolePrint("[SM] Extension number %d was not found.", num);
return;
}
if (pExt->IsLoaded())
{
char filename[PLATFORM_MAX_PATH];
char error[255];
snprintf(filename, PLATFORM_MAX_PATH, "%s", pExt->GetFilename());
if (pExt->Reload(error, sizeof(error)))
{
rootmenu->ConsolePrint("[SM] Extension %s is now reloaded.", filename);
}
else
{
rootmenu->ConsolePrint("[SM] Extension %s failed to reload: %s", filename, error);
}
return;
}
else
{
rootmenu->ConsolePrint("[SM] Extension %s is not loaded.", pExt->GetFilename());
return;
}
}
}
rootmenu->ConsolePrint("SourceMod Extensions Menu:");
rootmenu->DrawGenericOption("info", "Extra extension information");
rootmenu->DrawGenericOption("list", "List extensions");
rootmenu->DrawGenericOption("load", "Load an extension");
rootmenu->DrawGenericOption("reload", "Reload an extension");
rootmenu->DrawGenericOption("unload", "Unload an extension");
}
bool CExtensionManager::UnloadExtension(IExtension *_pExt)
{
if (!_pExt)
{
return false;
}
CExtension *pExt = (CExtension *)_pExt;
if (m_Libs.find(pExt) == m_Libs.end())
{
return false;
}
/* Tell it to unload */
if (pExt->IsLoaded())
{
IExtensionInterface *pAPI = pExt->GetAPI();
pAPI->OnExtensionUnload();
}
/* First remove us from internal lists */
g_ShareSys.RemoveInterfaces(_pExt);
m_Libs.remove(pExt);
List<CExtension *> UnloadQueue;
/* Handle dependencies */
if (pExt->IsLoaded())
{
/* Unload any dependent plugins */
List<CPlugin *>::iterator p_iter = pExt->m_Dependents.begin();
while (p_iter != pExt->m_Dependents.end())
{
/* We have to manually unlink ourselves here, since we're no longer being managed */
scripts->UnloadPlugin((*p_iter));
p_iter = pExt->m_Dependents.erase(p_iter);
}
List<String>::iterator s_iter;
for (s_iter = pExt->m_Libraries.begin();
s_iter != pExt->m_Libraries.end();
s_iter++)
{
scripts->OnLibraryAction((*s_iter).c_str(), LibraryAction_Removed);
}
/* Notify and/or unload all dependencies */
List<CExtension *>::iterator c_iter;
CExtension *pDep;
IExtensionInterface *pAPI;
for (c_iter = m_Libs.begin(); c_iter != m_Libs.end(); c_iter++)
{
pDep = (*c_iter);
if ((pAPI=pDep->GetAPI()) == NULL)
{
continue;
}
if (pDep == pExt)
{
continue;
}
/* Now, get its dependency list */
bool dropped = false;
List<IfaceInfo>::iterator i_iter = pDep->m_Deps.begin();
while (i_iter != pDep->m_Deps.end())
{
if ((*i_iter).owner == _pExt)
{
if (!pAPI->QueryInterfaceDrop((*i_iter).iface))
{
if (!dropped)
{
dropped = true;
UnloadQueue.push_back(pDep);
}
}
pAPI->NotifyInterfaceDrop((*i_iter).iface);
i_iter = pDep->m_Deps.erase(i_iter);
}
else
{
i_iter++;
}
}
/* Flush out any back references to this plugin */
i_iter = pDep->m_ChildDeps.begin();
while (i_iter != pDep->m_ChildDeps.end())
{
if ((*i_iter).owner == pExt)
{
i_iter = pDep->m_ChildDeps.erase(i_iter);
}
else
{
i_iter++;
}
}
}
/* Unbind our natives from Core */
pExt->DropEverything();
}
IdentityToken_t *pIdentity;
if ((pIdentity = pExt->GetIdentity()) != NULL)
{
SMGlobalClass *glob = SMGlobalClass::head;
while (glob)
{
glob->OnSourceModIdentityDropped(pIdentity);
glob = glob->m_pGlobalClassNext;
}
}
pExt->Unload();
delete pExt;
List<CExtension *>::iterator iter;
for (iter=UnloadQueue.begin(); iter!=UnloadQueue.end(); iter++)
{
/* NOTE: This is safe because the unload function backs out of anything not present */
UnloadExtension((*iter));
}
return true;
}