void ConVarManager::OnUnlinkConCommandBase(ConCommandBase *pBase, const char *name)
{
/* Only check convars that have not been created by SourceMod's core */
ConVarInfo *pInfo;
if (!convar_cache_lookup(name, &pInfo))
{
return;
}
HandleSecurity sec(NULL, g_pCoreIdent);
/* Remove it from our cache */
m_ConVars.remove(pInfo);
convar_cache.remove(name);
/* Now make sure no plugins are referring to this pointer */
IPluginIterator *pl_iter = scripts->GetPluginIterator();
while (pl_iter->MorePlugins())
{
IPlugin *pl = pl_iter->GetPlugin();
ConVarList *pConVarList;
if (pl->GetProperty("ConVarList", (void **)&pConVarList, true)
&& pConVarList != NULL)
{
pConVarList->remove(pInfo->pVar);
}
pl_iter->NextPlugin();
}
/* Free resources */
handlesys->FreeHandle(pInfo->handle, &sec);
delete pInfo;
}
void ConVarManager::OnSourceModShutdown()
{
List<ConVarInfo *>::iterator iter = m_ConVars.begin();
HandleSecurity sec(NULL, g_pCoreIdent);
/* Iterate list of ConVarInfo structures, remove every one of them */
while (iter != m_ConVars.end())
{
ConVarInfo *pInfo = (*iter);
iter = m_ConVars.erase(iter);
handlesys->FreeHandle(pInfo->handle, &sec);
if (pInfo->pChangeForward != NULL)
{
forwardsys->ReleaseForward(pInfo->pChangeForward);
}
if (pInfo->sourceMod)
{
/* If we created it, we won't be tracking it, therefore it is
* safe to remove everything in one go.
*/
META_UNREGCVAR(pInfo->pVar);
delete [] pInfo->pVar->GetName();
delete [] pInfo->pVar->GetHelpText();
delete [] pInfo->pVar->GetDefault();
delete pInfo->pVar;
}
else
{
/* If we didn't create it, we might be tracking it. Also,
* it could be unreadable.
*/
UntrackConCommandBase(pInfo->pVar, this);
}
/* It's not safe to read the name here, so we simply delete the
* the info struct and clear the lookup cache at the end.
*/
delete pInfo;
}
convar_cache.clear();
g_Players.RemoveClientListener(this);
/* Remove the 'convars' option from the 'sm' console command */
rootmenu->RemoveRootConsoleCommand("cvars", this);
scripts->RemovePluginsListener(this);
/* Remove the 'ConVar' handle type */
handlesys->RemoveType(m_ConVarType, g_pCoreIdent);
}
Handle_t ConVarManager::FindConVar(const char *name)
{
ConVar *pConVar = NULL;
ConVarInfo *pInfo;
Handle_t hndl;
/* Check convar cache to find out if we already have a handle */
if (convar_cache_lookup(name, &pInfo))
{
return pInfo->handle;
}
/* Couldn't find it in cache, so search for it */
pConVar = icvar->FindVar(name);
/* If it doesn't exist, then return an invalid handle */
if (!pConVar)
{
return BAD_HANDLE;
}
/* Create and initialize ConVarInfo structure */
pInfo = new ConVarInfo();
pInfo->sourceMod = false;
pInfo->pChangeForward = NULL;
pInfo->pVar = pConVar;
/* If we don't have a handle, then create a new one */
hndl = handlesys->CreateHandle(m_ConVarType, pInfo, NULL, g_pCoreIdent, NULL);
if (hndl == BAD_HANDLE)
{
delete pInfo;
return BAD_HANDLE;
}
pInfo->handle = hndl;
/* Insert struct into our caches */
m_ConVars.push_back(pInfo);
convar_cache.insert(name, pInfo);
TrackConCommandBase(pConVar, this);
return hndl;
}
Handle_t ConVarManager::CreateConVar(IPluginContext *pContext, const char *name, const char *defaultVal, const char *description, int flags, bool hasMin, float min, bool hasMax, float max)
{
ConVar *pConVar = NULL;
ConVarInfo *pInfo = NULL;
Handle_t hndl = 0;
/* Find out if the convar exists already */
pConVar = icvar->FindVar(name);
/* If the convar already exists... */
if (pConVar)
{
/* Add convar to plugin's list */
AddConVarToPluginList(pContext, pConVar);
/* First find out if we already have a handle to it */
if (convar_cache_lookup(name, &pInfo))
{
return pInfo->handle;
}
else
{
/* Create and initialize ConVarInfo structure */
pInfo = new ConVarInfo();
pInfo->sourceMod = false;
pInfo->pChangeForward = NULL;
pInfo->pVar = pConVar;
/* If we don't, then create a new handle from the convar */
hndl = handlesys->CreateHandle(m_ConVarType, pInfo, NULL, g_pCoreIdent, NULL);
if (hndl == BAD_HANDLE)
{
delete pInfo;
return BAD_HANDLE;
}
pInfo->handle = hndl;
/* Insert struct into caches */
m_ConVars.push_back(pInfo);
convar_cache.insert(name, pInfo);
TrackConCommandBase(pConVar, this);
return hndl;
}
}
/* Prevent creating a convar that has the same name as a console command */
if (FindCommand(name))
{
return BAD_HANDLE;
}
/* Create and initialize ConVarInfo structure */
pInfo = new ConVarInfo();
pInfo->handle = hndl;
pInfo->sourceMod = true;
pInfo->pChangeForward = NULL;
/* Create a handle from the new convar */
hndl = handlesys->CreateHandle(m_ConVarType, pInfo, NULL, g_pCoreIdent, NULL);
if (hndl == BAD_HANDLE)
{
delete pInfo;
return BAD_HANDLE;
}
pInfo->handle = hndl;
/* Hardening: remove NOTIFY from any convar plugins attempt to create */
flags &= ~FCVAR_NOTIFY;
/* Since an existing convar (or concmd with the same name) was not found , now we can finally create it */
pConVar = new ConVar(sm_strdup(name), sm_strdup(defaultVal), flags, sm_strdup(description), hasMin, min, hasMax, max);
pInfo->pVar = pConVar;
/* Add convar to plugin's list */
AddConVarToPluginList(pContext, pConVar);
/* Insert struct into caches */
m_ConVars.push_back(pInfo);
convar_cache.insert(name, pInfo);
return hndl;
}
bool convar_cache_lookup(const char *name, ConVarInfo **pVar)
{
return convar_cache.retrieve(name, pVar);
}
void ConVarManager::OnSourceModShutdown()
{
List<ConVarInfo *>::iterator iter = m_ConVars.begin();
HandleSecurity sec(NULL, g_pCoreIdent);
/* Iterate list of ConVarInfo structures, remove every one of them */
while (iter != m_ConVars.end())
{
ConVarInfo *pInfo = (*iter);
iter = m_ConVars.erase(iter);
handlesys->FreeHandle(pInfo->handle, &sec);
if (pInfo->pChangeForward != NULL)
{
forwardsys->ReleaseForward(pInfo->pChangeForward);
}
if (pInfo->sourceMod)
{
/* If we created it, we won't be tracking it, therefore it is
* safe to remove everything in one go.
*/
META_UNREGCVAR(pInfo->pVar);
delete [] pInfo->pVar->GetName();
delete [] pInfo->pVar->GetHelpText();
delete [] pInfo->pVar->GetDefault();
delete pInfo->pVar;
}
else
{
/* If we didn't create it, we might be tracking it. Also,
* it could be unreadable.
*/
UntrackConCommandBase(pInfo->pVar, this);
}
/* It's not safe to read the name here, so we simply delete the
* the info struct and clear the lookup cache at the end.
*/
delete pInfo;
}
convar_cache.clear();
#if SOURCE_ENGINE != SE_DARKMESSIAH
/* Unhook things */
if (m_bIsDLLQueryHooked)
{
SH_REMOVE_HOOK(IServerGameDLL, OnQueryCvarValueFinished, gamedll, SH_MEMBER(this, &ConVarManager::OnQueryCvarValueFinished), false);
m_bIsDLLQueryHooked = false;
}
else if (m_bIsVSPQueryHooked)
{
#if SOURCE_ENGINE != SE_DOTA
SH_REMOVE_HOOK(IServerPluginCallbacks, OnQueryCvarValueFinished, vsp_interface, SH_MEMBER(this, &ConVarManager::OnQueryCvarValueFinished), false);
#endif
m_bIsVSPQueryHooked = false;
}
#endif
g_Players.RemoveClientListener(this);
#if SOURCE_ENGINE >= SE_ORANGEBOX
SH_REMOVE_HOOK(ICvar, CallGlobalChangeCallbacks, icvar, SH_STATIC(OnConVarChanged), false);
#else
SH_REMOVE_HOOK(ICvar, CallGlobalChangeCallback, icvar, SH_STATIC(OnConVarChanged), false);
#endif
/* Remove the 'convars' option from the 'sm' console command */
g_RootMenu.RemoveRootConsoleCommand("cvars", this);
scripts->RemovePluginsListener(this);
/* Remove the 'ConVar' handle type */
handlesys->RemoveType(m_ConVarType, g_pCoreIdent);
}
