79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <sys/queue.h>
|
|
#include <pthread.h>
|
|
#include "event_queue.h"
|
|
#include "log_sys.h"
|
|
|
|
const char *etype_str[] = {"CRASH", "INFO", "UPTIME", "HEART_BEAT",
|
|
"REBOOT", "VM", "UNKNOWN"};
|
|
|
|
static pthread_mutex_t eq_mtx = PTHREAD_MUTEX_INITIALIZER;
|
|
static pthread_cond_t pcond = PTHREAD_COND_INITIALIZER;
|
|
TAILQ_HEAD(, event_t) event_q;
|
|
|
|
/**
|
|
* Enqueue an event to event_queue.
|
|
*
|
|
* @param event Event to process.
|
|
*/
|
|
void event_enqueue(struct event_t *event)
|
|
{
|
|
pthread_mutex_lock(&eq_mtx);
|
|
TAILQ_INSERT_TAIL(&event_q, event, entries);
|
|
pthread_cond_signal(&pcond);
|
|
LOGD("enqueue %d, (%d)%s\n", event->event_type, event->len,
|
|
event->path);
|
|
pthread_mutex_unlock(&eq_mtx);
|
|
}
|
|
|
|
/**
|
|
* Count the number of events in event_queue.
|
|
*
|
|
* @return count.
|
|
*/
|
|
int events_count(void)
|
|
{
|
|
struct event_t *e;
|
|
int count = 0;
|
|
|
|
pthread_mutex_lock(&eq_mtx);
|
|
TAILQ_FOREACH(e, &event_q, entries)
|
|
count++;
|
|
pthread_mutex_unlock(&eq_mtx);
|
|
|
|
return count;
|
|
}
|
|
|
|
/**
|
|
* Dequeue an event from event_queue.
|
|
*
|
|
* @return the dequeued event.
|
|
*/
|
|
struct event_t *event_dequeue(void)
|
|
{
|
|
struct event_t *e;
|
|
|
|
pthread_mutex_lock(&eq_mtx);
|
|
while (TAILQ_EMPTY(&event_q))
|
|
pthread_cond_wait(&pcond, &eq_mtx);
|
|
e = TAILQ_FIRST(&event_q);
|
|
TAILQ_REMOVE(&event_q, e, entries);
|
|
LOGD("dequeue %d, (%d)%s\n", e->event_type, e->len, e->path);
|
|
pthread_mutex_unlock(&eq_mtx);
|
|
|
|
return e;
|
|
}
|
|
|
|
/**
|
|
* Initailize event_queue.
|
|
*/
|
|
void init_event_queue(void)
|
|
{
|
|
TAILQ_INIT(&event_q);
|
|
}
|