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/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
ngx_int_t ngx_event_mutex_timedlock(ngx_event_mutex_t *m, ngx_msec_t timer,
ngx_event_t *ev)
{
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
"lock event mutex %p lock:%XD", m, m->lock);
if (m->lock) {
if (m->events == NULL) {
m->events = ev;
} else {
m->last->next = ev;
}
m->last = ev;
ev->next = NULL;
#if (NGX_THREADS0)
ev->light = 1;
#endif
ngx_add_timer(ev, timer);
return NGX_AGAIN;
}
m->lock = 1;
return NGX_OK;
}
ngx_int_t ngx_event_mutex_unlock(ngx_event_mutex_t *m, ngx_log_t *log)
{
ngx_event_t *ev;
if (m->lock == 0) {
ngx_log_error(NGX_LOG_ALERT, log, 0,
"tring to unlock the free event mutex %p", m);
return NGX_ERROR;
}
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0,
"unlock event mutex %p, next event: %p", m, m->events);
m->lock = 0;
if (m->events) {
ev = m->events;
m->events = ev->next;
ev->next = (ngx_event_t *) ngx_posted_events;
ngx_posted_events = ev;
}
return NGX_OK;
}
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