acrn-hypervisor/misc/debug_tools/acrn_crashlog/acrnprobe/event_queue.c
Xie, nanlin 0ab5db9cf9 tools: rename and category content into debug tools and services
1. Rename folder name with "_"
2. Category acrn_crashlog, acrn_log, acrn_trace into debug_tools folder and acrn_bridge, life_mngr, acrn_manager into services.

Tracked-On: #5644
Signed-off-by: Xie, nanlin <nanlin.xie@intel.com>
2021-01-27 11:08:28 +08:00

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);
}