void RemoveClientSubClientSID(GenlibClientSubscription **head, const UpnpString *sid)
{
GenlibClientSubscription *finger = *head;
GenlibClientSubscription *previous = NULL;
int found = 0;
while (finger) {
found = !strcmp(
UpnpString_get_String(sid),
GenlibClientSubscription_get_SID_cstr(finger));
if (found) {
if (previous) {
GenlibClientSubscription_set_Next(previous,
GenlibClientSubscription_get_Next(finger));
} else {
*head = GenlibClientSubscription_get_Next(finger);
}
GenlibClientSubscription_set_Next(finger, NULL);
freeClientSubList(finger);
finger = NULL;
} else {
previous = finger;
finger = GenlibClientSubscription_get_Next(finger);
}
}
}
/************************************************************************
* Function : genaUnregisterClient
*
* Parameters:
* IN UpnpClient_Handle client_handle: Handle containing all the control
* point related information
*
* Description:
* This function unsubcribes all the outstanding subscriptions and cleans
* the subscription list. This function is called when control point
* unregisters.
*
* Returns: int
* return UPNP_E_SUCCESS if successful else returns appropriate error
***************************************************************************/
int
genaUnregisterClient( IN UpnpClient_Handle client_handle )
{
client_subscription sub_copy;
int return_code = UPNP_E_SUCCESS;
struct Handle_Info *handle_info = NULL;
http_parser_t response;
while( TRUE ) {
HandleLock( );
if( GetHandleInfo( client_handle, &handle_info ) != HND_CLIENT ) {
HandleUnlock( );
return GENA_E_BAD_HANDLE;
}
if( handle_info->ClientSubList == NULL ) {
return_code = UPNP_E_SUCCESS;
break;
}
return_code = copy_client_subscription( handle_info->ClientSubList,
&sub_copy );
if( return_code != HTTP_SUCCESS ) {
break;
}
RemoveClientSubClientSID( &handle_info->ClientSubList,
sub_copy.sid );
HandleUnlock( );
return_code = gena_unsubscribe( sub_copy.EventURL,
sub_copy.ActualSID, &response );
if( return_code == 0 ) {
httpmsg_destroy( &response.msg );
}
free_client_subscription( &sub_copy );
}
freeClientSubList( handle_info->ClientSubList );
HandleUnlock( );
return return_code;
}
int genaUnregisterClient(UpnpClient_Handle client_handle)
{
ClientSubscription *sub_copy = UpnpClientSubscription_new();
int return_code = UPNP_E_SUCCESS;
struct Handle_Info *handle_info = NULL;
http_parser_t response;
while (TRUE) {
HandleLock();
if (GetHandleInfo(client_handle, &handle_info) != HND_CLIENT) {
HandleUnlock();
return_code = GENA_E_BAD_HANDLE;
goto exit_function;
}
if (handle_info->ClientSubList == NULL) {
return_code = UPNP_E_SUCCESS;
break;
}
UpnpClientSubscription_assign(sub_copy, handle_info->ClientSubList);
RemoveClientSubClientSID(
&handle_info->ClientSubList,
UpnpClientSubscription_get_SID(sub_copy));
HandleUnlock();
return_code = gena_unsubscribe(
UpnpClientSubscription_get_EventURL(sub_copy),
UpnpClientSubscription_get_ActualSID(sub_copy),
&response);
if (return_code == 0) {
httpmsg_destroy(&response.msg);
}
free_client_subscription(sub_copy);
}
freeClientSubList(handle_info->ClientSubList);
HandleUnlock();
exit_function:
UpnpClientSubscription_delete(sub_copy);
return return_code;
}