libwebsockets/minimal-examples-lowlevel/http-server/minimal-http-server-eventlib-foreign/libsdevent.c

87 lines
1.8 KiB
C

/*
* lws-minimal-http-server-eventlib-foreign
*
* Written in 2020 by Christian Fuchs <christian.fuchs@scs.ch>
*
* This file is made available under the Creative Commons CC0 1.0
* Universal Public Domain Dedication.
*
* The sdevent specific code
*/
#include <libwebsockets.h>
#include <string.h>
#include <signal.h>
#include <systemd/sd-event.h>
#include "private.h"
static struct sd_event *sd_loop;
static sd_event_source *sd_timer;
static sd_event_source *sd_signal;
static int
timer_cb_sd(sd_event_source *source, uint64_t now, void *user)
{
foreign_timer_service(sd_loop);
if (sd_timer) {
sd_event_source_set_time(sd_timer, now + 1000000);
sd_event_source_set_enabled(sd_timer, SD_EVENT_ON);
}
return 0;
}
static int
signal_cb_sd(sd_event_source *source, const struct signalfd_siginfo *si,
void *user)
{
signal_cb((int)si->ssi_signo);
return 0;
}
static void
foreign_event_loop_init_and_run_libsdevent(void)
{
uint64_t now;
/* we create and start our "foreign loop" */
sd_event_default(&sd_loop);
sd_event_add_signal(sd_loop, &sd_signal, SIGINT, signal_cb_sd, NULL);
sd_event_now(sd_loop, CLOCK_MONOTONIC, &now);
sd_event_add_time(sd_loop, &sd_timer, CLOCK_MONOTONIC, now,
(uint64_t) 1000, timer_cb_sd, NULL);
sd_event_loop(sd_loop);
}
static void
foreign_event_loop_stop_libsdevent(void)
{
sd_event_exit(sd_loop, 0);
}
static void
foreign_event_loop_cleanup_libsdevent(void)
{
sd_event_source_set_enabled(sd_timer, SD_EVENT_OFF);
sd_timer = sd_event_source_unref(sd_timer);
sd_event_source_set_enabled(sd_signal, SD_EVENT_OFF);
sd_signal = sd_event_source_unref(sd_signal);
sd_loop = sd_event_unref(sd_loop);
}
const struct ops ops_sdevent = {
foreign_event_loop_init_and_run_libsdevent,
foreign_event_loop_stop_libsdevent,
foreign_event_loop_cleanup_libsdevent
};