libs/os/include/os/os_eventq.h

/**
 * 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.
 */

#ifndef _OS_EVENTQ_H
#define _OS_EVENTQ_H

#include <inttypes.h>
#include <os/os_time.h>

struct os_event {
    uint8_t ev_queued;
    uint8_t ev_type;
    void *ev_arg;
    STAILQ_ENTRY(os_event) ev_next;
};

#define OS_EVENT_QUEUED(__ev) ((__ev)->ev_queued)

#define OS_EVENT_T_TIMER (1)
#define OS_EVENT_T_MQUEUE_DATA (2)
#define OS_EVENT_T_PERUSER (16)

struct os_eventq {
    struct os_task *evq_task;
    STAILQ_HEAD(, os_event) evq_list;
};

void os_eventq_init(struct os_eventq *);
void os_eventq_put(struct os_eventq *, struct os_event *);
struct os_event *os_eventq_get(struct os_eventq *);
struct os_event *os_eventq_poll(struct os_eventq **, int, os_time_t);
void os_eventq_remove(struct os_eventq *, struct os_event *);

#endif /* _OS_EVENTQ_H */