/*
- * Copyright (C) 2016, 2017, 2018 "IoT.bzh"
+ * Copyright (C) 2016-2019 "IoT.bzh"
* Author José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
#define _GNU_SOURCE
-#if defined(NO_JOBS_WATCHDOG)
-# define HAS_WATCHDOG 0
-#else
-# define HAS_WATCHDOG 1
-#endif
-
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/eventfd.h>
#include <systemd/sd-event.h>
-#include "fdev.h"
-#if HAS_WATCHDOG
-#include <systemd/sd-daemon.h>
-#endif
#include "jobs.h"
#include "sig-monitor.h"
#include "verbose.h"
-
-#if defined(REMOVE_SYSTEMD_EVENT)
-#include "fdev-epoll.h"
-#endif
+#include "systemd.h"
#define EVENT_TIMEOUT_TOP ((uint64_t)-1)
#define EVENT_TIMEOUT_CHILD ((uint64_t)10000)
unsigned state; /**< encoded state */
int efd; /**< event notification */
struct sd_event *sdev; /**< the systemd event loop */
- struct fdev *fdev; /**< handling of events */
struct thread *holder; /**< holder of the evloop */
};
/* event loop */
static struct evloop evloop;
-#if defined(REMOVE_SYSTEMD_EVENT)
-static struct fdev_epoll *fdevepoll;
-static int waitevt;
-#endif
-
/**
* Create a new job with the given parameters
* @param group the group of the job
job->callback(SIGABRT, job->arg);
}
-#if defined(REMOVE_SYSTEMD_EVENT)
-/**
- * Gets a fdev_epoll item.
- * @return a fdev_epoll or NULL in case of error
- */
-static struct fdev_epoll *get_fdevepoll()
-{
- struct fdev_epoll *result;
-
- result = fdevepoll;
- if (!result)
- result = fdevepoll = fdev_epoll_create();
-
- return result;
-}
-#endif
-
/**
* Monitored normal callback for events.
* This function is called by the monitor
{
struct thread *nh, *ct = current_thread;
- if (evloop.holder == ct) {
+ if (ct && evloop.holder == ct) {
nh = ct->nholder;
evloop.holder = nh;
if (nh)
if (evloop.holder)
return evloop.holder == ct;
+ if (!evloop.sdev)
+ return 0;
+
ct->nholder = NULL;
evloop.holder = ct;
return 1;
}
}
-#if defined(REMOVE_SYSTEMD_EVENT)
-/**
- * Monitored normal loop for waiting events.
- * @param signum 0 on normal flow or the number
- * of the signal that interrupted the normal
- * flow
- * @param arg the events to run
- */
-static void monitored_wait_and_dispatch(int signum, void *arg)
-{
- struct fdev_epoll *fdev_epoll = arg;
- if (!signum) {
- fdev_epoll_wait_and_dispatch(fdev_epoll, -1);
- }
-}
-#endif
-
/**
* Enter the thread
* @param me the description of the thread to enter
*/
static void thread_enter(volatile struct thread *me)
{
+ evloop_release();
/* initialize description of itself and link it in the list */
me->tid = pthread_self();
me->stop = 0;
/* release the run job */
job_release(job);
-#if !defined(REMOVE_SYSTEMD_EVENT)
/* no job, check event loop wait */
} else if (evloop_get()) {
if (evloop.state != 0) {
pthread_cond_wait(&cond, &mutex);
me->waits = 0;
running++;
-#else
- } else if (waitevt) {
- /* no job and not events */
- running--;
- if (!running)
- ERROR("Entering job deep sleep! Check your bindings.");
- me->waits = 1;
- pthread_cond_wait(&cond, &mutex);
- me->waits = 0;
- running++;
- } else {
- /* wait for events */
- waitevt = 1;
- pthread_mutex_unlock(&mutex);
- sig_monitor(0, monitored_wait_and_dispatch, get_fdevepoll());
- pthread_mutex_lock(&mutex);
- waitevt = 0;
-#endif
}
}
/* cleanup */
return 1;
}
-/* temporary hack */
-#if !defined(REMOVE_SYSTEMD_EVENT)
-__attribute__((unused))
-#endif
-static void evloop_callback(void *arg, uint32_t event, struct fdev *fdev)
-{
- sig_monitor(0, evloop_run, arg);
-}
-
/**
* Gets a sd_event item for the current thread.
* @return a sd_event or NULL in case of error
goto error1;
}
/* create the systemd event loop */
- rc = sd_event_new(&evloop.sdev);
- if (rc < 0) {
- ERROR("can't make new event loop");
+ evloop.sdev = systemd_get_event_loop();
+ if (!evloop.sdev) {
+ ERROR("can't make event loop");
goto error2;
}
/* put the eventfd in the event loop */
rc = sd_event_add_io(evloop.sdev, NULL, evloop.efd, EPOLLIN, on_evloop_efd, NULL);
if (rc < 0) {
ERROR("can't register eventfd");
-#if !defined(REMOVE_SYSTEMD_EVENT)
- sd_event_unref(evloop.sdev);
evloop.sdev = NULL;
error2:
close(evloop.efd);
error1:
return NULL;
}
-#else
- goto error3;
- }
- /* handle the event loop */
- evloop.fdev = fdev_epoll_add(get_fdevepoll(), sd_event_get_fd(evloop.sdev));
- if (!evloop.fdev) {
- ERROR("can't create fdev");
-error3:
- sd_event_unref(evloop.sdev);
-error2:
- close(evloop.efd);
-error1:
- memset(&evloop, 0, sizeof evloop);
- return NULL;
- }
- fdev_set_autoclose(evloop.fdev, 0);
- fdev_set_events(evloop.fdev, EPOLLIN);
- fdev_set_callback(evloop.fdev, evloop_callback, NULL);
-#endif
}
/* acquire the event loop */
}
/**
- * Gets a sd_event item for the current thread.
- * @return a sd_event or NULL in case of error
+ * Ensure that the current running thread can control the event loop.
*/
-struct sd_event *jobs_get_sd_event()
+void jobs_acquire_event_manager()
{
- struct sd_event *result;
struct thread lt;
/* ensure an existing thread environment */
/* process */
pthread_mutex_lock(&mutex);
- result = get_sd_event_locked();
+ get_sd_event_locked();
pthread_mutex_unlock(&mutex);
/* release the faked thread environment if needed */
evloop_release();
current_thread = NULL;
}
-
- return result;
-}
-
-#if defined(REMOVE_SYSTEMD_EVENT)
-/**
- * Gets the fdev_epoll item.
- * @return a fdev_epoll or NULL in case of error
- */
-struct fdev_epoll *jobs_get_fdev_epoll()
-{
- struct fdev_epoll *result;
-
- pthread_mutex_lock(&mutex);
- result = get_fdevepoll();
- pthread_mutex_unlock(&mutex);
-
- return result;
}
-#endif
/**
* Enter the jobs processing loop.
running = 0;
remains = waiter_count;
-#if HAS_WATCHDOG
- /* set the watchdog */
- if (sd_watchdog_enabled(0, NULL))
- sd_event_set_watchdog(get_sd_event_locked(), 1);
-#endif
-
/* start at least one thread: the current one */
launched = 1;
while (launched < start_count) {
Code Review / src / app-framework-binder.git / blobdiff