zzzzfight commented on code in PR #12802: URL: https://github.com/apache/nuttx/pull/12802#discussion_r1703504900
########## sched/event/event_init.c: ########## @@ -0,0 +1,53 @@ +/**************************************************************************** + * sched/event/event_init.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/event.h> + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxevent_init + * + * Description: + * This routine initializes an event object, Set of default events to post + * to event. + * + * Input Parameters: + * event - Address of the event object + * events - Set of events to post to event + * + * Returned Value: + * This is an internal OS interface and should not be used by applications. + * It follows the NuttX internal error return policy: Zero (OK) is + * returned on success. A negated errno value is returned on failure. + * + ****************************************************************************/ + +int nxevent_init(FAR nxevent_t *event, nxevent_mask_t events) +{ + event->events = events; Review Comment: it seems like just init the events status? if any task use the event_wait(events_ptr, 0) to wait for an event, the task will be not blocked the first time it is called? If my understanding is correct, is this design for special scenarios? I'm curious, so please give me an explanation, d(`･∀･)b -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
