static cell_t sm_RemoveFromForward(IPluginContext *pContext, const cell_t *params)
{
Handle_t fwdHandle = static_cast<Handle_t>(params[1]);
Handle_t plHandle = static_cast<Handle_t>(params[2]);
HandleError err;
IChangeableForward *pForward;
IPlugin *pPlugin;
if ((err=g_HandleSys.ReadHandle(fwdHandle, g_PrivateFwdType, NULL, (void **)&pForward))
!= HandleError_None)
{
return pContext->ThrowNativeError("Invalid private forward handle %x (error %d)", fwdHandle, err);
}
if (plHandle == 0)
{
pPlugin = g_PluginSys.FindPluginByContext(pContext->GetContext());
} else {
pPlugin = g_PluginSys.PluginFromHandle(plHandle, &err);
if (!pPlugin)
{
return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", plHandle, err);
}
}
IPluginFunction *pFunction = pPlugin->GetBaseContext()->GetFunctionById(params[3]);
if (!pFunction)
{
return pContext->ThrowNativeError("Invalid function id (%X)", params[3]);
}
return pForward->RemoveFunction(pFunction);
}
void ConVarManager::UnhookConVarChange(ConVar *pConVar, IPluginFunction *pFunction)
{
ConVarInfo *pInfo;
IChangeableForward *pForward;
IPluginContext *pContext = pFunction->GetParentContext();
/* Find the convar in the lookup trie */
if (convar_cache_lookup(pConVar->GetName(), &pInfo))
{
/* Get the forward */
pForward = pInfo->pChangeForward;
/* If the forward doesn't exist, we can't unhook anything */
if (!pForward)
{
pContext->ThrowNativeError("Convar \"%s\" has no active hook", pConVar->GetName());
return;
}
/* Remove the function from the forward's list */
if (!pForward->RemoveFunction(pFunction))
{
pContext->ThrowNativeError("Invalid hook callback specified for convar \"%s\"", pConVar->GetName());
return;
}
/* If the forward now has 0 functions in it... */
if (pForward->GetFunctionCount() == 0 &&
!ConVarReentrancyGuard::IsCvarInChain(pConVar))
{
/* Free this forward */
forwardsys->ReleaseForward(pForward);
pInfo->pChangeForward = NULL;
}
}
}
