-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
int64_t priority;
unsigned pending_index;
unsigned prepare_index;
- unsigned pending_iteration;
- unsigned prepare_iteration;
+ uint64_t pending_iteration;
+ uint64_t prepare_iteration;
LIST_FIELDS(sd_event_source, sources);
pid_t original_pid;
- unsigned iteration;
- dual_timestamp timestamp;
- usec_t timestamp_boottime;
+ uint64_t iteration;
+ triple_timestamp timestamp;
int state;
bool exit_requested:1;
e->watchdog_fd = e->epoll_fd = e->realtime.fd = e->boottime.fd = e->monotonic.fd = e->realtime_alarm.fd = e->boottime_alarm.fd = -1;
e->realtime.next = e->boottime.next = e->monotonic.next = e->realtime_alarm.next = e->boottime_alarm.next = USEC_INFINITY;
e->realtime.wakeup = e->boottime.wakeup = e->monotonic.wakeup = e->realtime_alarm.wakeup = e->boottime_alarm.wakeup = WAKEUP_CLOCK_DATA;
- e->original_pid = getpid();
+ e->original_pid = getpid_cached();
e->perturb = USEC_INFINITY;
r = prioq_ensure_allocated(&e->pending, pending_prioq_compare);
/* We don't support people creating an event loop and keeping
* it around over a fork(). Let's complain. */
- return e->original_pid != getpid();
+ return e->original_pid != getpid_cached();
}
static void source_io_unregister(sd_event_source *s) {
/* If all the mask is all-zero we can get rid of the structure */
hashmap_remove(e->signal_data, &d->priority);
- assert(!d->current);
safe_close(d->fd);
free(d);
return;
sd_event_ref(e);
LIST_PREPEND(sources, e->sources, s);
- e->n_sources ++;
+ e->n_sources++;
return s;
}
assert_return(e->state != SD_EVENT_FINISHED, -ESTALE);
assert_return(!event_pid_changed(e), -ECHILD);
+ if (!clock_supported(clock)) /* Checks whether the kernel supports the clock */
+ return -EOPNOTSUPP;
+
+ type = clock_to_event_source_type(clock); /* checks whether sd-event supports this clock */
+ if (type < 0)
+ return -EOPNOTSUPP;
+
if (!callback)
callback = time_exit_callback;
- type = clock_to_event_source_type(clock);
- assert_return(type >= 0, -EOPNOTSUPP);
-
d = event_get_clock_data(e, type);
assert(d);
int r;
assert_return(e, -EINVAL);
- assert_return(sig > 0, -EINVAL);
- assert_return(sig < _NSIG, -EINVAL);
+ assert_return(SIGNAL_VALID(sig), -EINVAL);
assert_return(e->state != SD_EVENT_FINISHED, -ESTALE);
assert_return(!event_pid_changed(e), -ECHILD);
return r;
}
- e->n_enabled_child_sources ++;
+ e->n_enabled_child_sources++;
r = event_make_signal_data(e, SIGCHLD, NULL);
if (r < 0) {
assert_return(s, -EINVAL);
assert_return(!event_pid_changed(s->event), -ECHILD);
- return s->priority;
+ *priority = s->priority;
+ return 0;
}
_public_ int sd_event_source_set_priority(sd_event_source *s, int64_t priority) {
int r;
assert_return(s, -EINVAL);
- assert_return(m == SD_EVENT_OFF || m == SD_EVENT_ON || m == SD_EVENT_ONESHOT, -EINVAL);
+ assert_return(IN_SET(m, SD_EVENT_OFF, SD_EVENT_ON, SD_EVENT_ONESHOT), -EINVAL);
assert_return(!event_pid_changed(s->event), -ECHILD);
/* If we are dead anyway, we are fine with turning off
ss = read(fd, &x, sizeof(x));
if (ss < 0) {
- if (errno == EAGAIN || errno == EINTR)
+ if (IN_SET(errno, EAGAIN, EINTR))
return 0;
return -errno;
return -errno;
if (s->child.siginfo.si_pid != 0) {
- bool zombie =
- s->child.siginfo.si_code == CLD_EXITED ||
- s->child.siginfo.si_code == CLD_KILLED ||
- s->child.siginfo.si_code == CLD_DUMPED;
+ bool zombie = IN_SET(s->child.siginfo.si_code, CLD_EXITED, CLD_KILLED, CLD_DUMPED);
if (!zombie && (s->child.options & WEXITED)) {
/* If the child isn't dead then let's
n = read(d->fd, &si, sizeof(si));
if (n < 0) {
- if (errno == EAGAIN || errno == EINTR)
+ if (IN_SET(errno, EAGAIN, EINTR))
return read_one;
return -errno;
if (_unlikely_(n != sizeof(si)))
return -EIO;
- assert(si.ssi_signo < _NSIG);
+ assert(SIGNAL_VALID(si.ssi_signo));
read_one = true;
}
static int source_dispatch(sd_event_source *s) {
+ EventSourceType saved_type;
int r = 0;
assert(s);
assert(s->pending || s->type == SOURCE_EXIT);
- if (s->type != SOURCE_DEFER && s->type != SOURCE_EXIT) {
+ /* Save the event source type, here, so that we still know it after the event callback which might invalidate
+ * the event. */
+ saved_type = s->type;
+
+ if (!IN_SET(s->type, SOURCE_DEFER, SOURCE_EXIT)) {
r = source_set_pending(s, false);
if (r < 0)
return r;
case SOURCE_CHILD: {
bool zombie;
- zombie = s->child.siginfo.si_code == CLD_EXITED ||
- s->child.siginfo.si_code == CLD_KILLED ||
- s->child.siginfo.si_code == CLD_DUMPED;
+ zombie = IN_SET(s->child.siginfo.si_code, CLD_EXITED, CLD_KILLED, CLD_DUMPED);
r = s->child.callback(s, &s->child.siginfo, s->userdata);
if (r < 0)
log_debug_errno(r, "Event source %s (type %s) returned error, disabling: %m",
- strna(s->description), event_source_type_to_string(s->type));
+ strna(s->description), event_source_type_to_string(saved_type));
if (s->n_ref == 0)
source_free(s);
goto finish;
}
- dual_timestamp_get(&e->timestamp);
- e->timestamp_boottime = now(CLOCK_BOOTTIME);
+ triple_timestamp_get(&e->timestamp);
for (i = 0; i < m; i++) {
if (r < 0)
goto finish;
- r = process_timer(e, e->timestamp_boottime, &e->boottime);
+ r = process_timer(e, e->timestamp.boottime, &e->boottime);
if (r < 0)
goto finish;
if (r < 0)
goto finish;
- r = process_timer(e, e->timestamp_boottime, &e->boottime_alarm);
+ r = process_timer(e, e->timestamp.boottime, &e->boottime_alarm);
if (r < 0)
goto finish;
assert_return(e, -EINVAL);
assert_return(usec, -EINVAL);
assert_return(!event_pid_changed(e), -ECHILD);
- assert_return(IN_SET(clock,
- CLOCK_REALTIME,
- CLOCK_REALTIME_ALARM,
- CLOCK_MONOTONIC,
- CLOCK_BOOTTIME,
- CLOCK_BOOTTIME_ALARM), -EOPNOTSUPP);
-
- if (!dual_timestamp_is_set(&e->timestamp)) {
+
+ if (!TRIPLE_TIMESTAMP_HAS_CLOCK(clock))
+ return -EOPNOTSUPP;
+
+ /* Generate a clean error in case CLOCK_BOOTTIME is not available. Note that don't use clock_supported() here,
+ * for a reason: there are systems where CLOCK_BOOTTIME is supported, but CLOCK_BOOTTIME_ALARM is not, but for
+ * the purpose of getting the time this doesn't matter. */
+ if (IN_SET(clock, CLOCK_BOOTTIME, CLOCK_BOOTTIME_ALARM) && !clock_boottime_supported())
+ return -EOPNOTSUPP;
+
+ if (!triple_timestamp_is_set(&e->timestamp)) {
/* Implicitly fall back to now() if we never ran
* before and thus have no cached time. */
*usec = now(clock);
return 1;
}
- switch (clock) {
-
- case CLOCK_REALTIME:
- case CLOCK_REALTIME_ALARM:
- *usec = e->timestamp.realtime;
- break;
-
- case CLOCK_MONOTONIC:
- *usec = e->timestamp.monotonic;
- break;
-
- default:
- *usec = e->timestamp_boottime;
- break;
- }
-
+ *usec = triple_timestamp_by_clock(&e->timestamp, clock);
return 0;
}
return e->watchdog;
}
+
+_public_ int sd_event_get_iteration(sd_event *e, uint64_t *ret) {
+ assert_return(e, -EINVAL);
+ assert_return(!event_pid_changed(e), -ECHILD);
+
+ *ret = e->iteration;
+ return 0;
+}
projects / thirdparty / systemd.git / blobdiff