static void
log_threaded_dest_driver_do_work(gpointer data)
{
LogThrDestDriver *self = (LogThrDestDriver *)data;
gint timeout_msec = 0;
self->suspended = FALSE;
log_threaded_dest_driver_stop_watches(self);
if (!self->worker.connected)
{
__connect(self);
}
else if (log_queue_check_items(self->queue, &timeout_msec,
log_threaded_dest_driver_message_became_available_in_the_queue,
self, NULL))
{
log_threaded_dest_driver_do_insert(self);
if (!self->suspended)
log_threaded_dest_driver_start_watches(self);
}
else if (timeout_msec != 0)
{
log_queue_reset_parallel_push(self->queue);
iv_validate_now();
self->timer_throttle.expires = iv_now;
timespec_add_msec(&self->timer_throttle.expires, timeout_msec);
iv_timer_register(&self->timer_throttle);
}
}
static void
poll_file_changes_rearm_timer(PollFileChanges *self)
{
iv_validate_now();
self->follow_timer.expires = iv_now;
timespec_add_msec(&self->follow_timer.expires, self->follow_freq);
iv_timer_register(&self->follow_timer);
}
static void
affile_dw_arm_reaper(AFFileDestWriter *self)
{
/* not yet reaped, set up the next callback */
iv_validate_now();
self->reap_timer.expires = iv_now;
timespec_add_msec(&self->reap_timer.expires, self->owner->time_reap * 1000 / 2);
iv_timer_register(&self->reap_timer);
}
void
log_writer_arm_suspend_timer(LogWriter *self, void (*handler)(void *), gint timeout_msec)
{
if (iv_timer_registered(&self->suspend_timer))
iv_timer_unregister(&self->suspend_timer);
iv_validate_now();
self->suspend_timer.handler = handler;
self->suspend_timer.expires = iv_now;
timespec_add_msec(&self->suspend_timer.expires, timeout_msec);
iv_timer_register(&self->suspend_timer);
}
static void
afsocket_dd_start_reconnect_timer(AFSocketDestDriver *self)
{
main_loop_assert_main_thread();
if (iv_timer_registered(&self->reconnect_timer))
iv_timer_unregister(&self->reconnect_timer);
iv_validate_now();
self->reconnect_timer.expires = iv_now;
timespec_add_msec(&self->reconnect_timer.expires, self->time_reopen * 1000);
iv_timer_register(&self->reconnect_timer);
}
static void
main_loop_exit_initiate(void)
{
if (main_loop_is_terminating())
return;
msg_notice("syslog-ng shutting down",
evt_tag_str("version", SYSLOG_NG_VERSION));
IV_TIMER_INIT(&main_loop_exit_timer);
iv_validate_now();
main_loop_exit_timer.expires = iv_now;
main_loop_exit_timer.handler = main_loop_exit_timer_elapsed;
timespec_add_msec(&main_loop_exit_timer.expires, 100);
iv_timer_register(&main_loop_exit_timer);
__main_loop_is_terminating = TRUE;
}
static void
log_reader_update_watches(LogReader *self)
{
gint fd;
GIOCondition cond;
gboolean free_to_send;
main_loop_assert_main_thread();
self->suspended = FALSE;
free_to_send = log_source_free_to_send(&self->super);
if (!free_to_send ||
self->immediate_check ||
log_proto_prepare(self->proto, &fd, &cond))
{
/* we disable all I/O related callbacks here because we either know
* that we can continue (e.g. immediate_check == TRUE) or we know
* that we can't continue even if data would be available (e.g.
* free_to_send == FALSE)
*/
self->immediate_check = FALSE;
if (iv_fd_registered(&self->fd_watch))
{
iv_fd_set_handler_in(&self->fd_watch, NULL);
iv_fd_set_handler_out(&self->fd_watch, NULL);
/* we disable the error handler too, as it might be
* triggered even when we don't want to read data
* (e.g. log_source_free_to_send() is FALSE).
*
* And at least on Linux, it may happen that EPOLLERR is
* set, while there's still data in the socket buffer. Thus
* in reaction to an EPOLLERR, we could possibly send
* further messages without validating the
* log_source_free_to_send() would allow us to, potentially
* overflowing our window (and causing a failed assertion in
* log_source_queue().
*/
iv_fd_set_handler_err(&self->fd_watch, NULL);
}
if (iv_timer_registered(&self->follow_timer))
iv_timer_unregister(&self->follow_timer);
if (free_to_send)
{
/* we have data in our input buffer, we need to start working
* on it immediately, without waiting for I/O events */
if (!iv_task_registered(&self->restart_task))
{
iv_task_register(&self->restart_task);
}
}
else
{
self->suspended = TRUE;
}
return;
}
if (iv_fd_registered(&self->fd_watch))
{
/* this branch is executed when our fd is connected to a non-file
* source (e.g. TCP, UDP socket). We set up I/O callbacks here.
* files cannot be polled using epoll, as it causes an I/O error
* (thus abort in ivykis).
*/
if (cond & G_IO_IN)
iv_fd_set_handler_in(&self->fd_watch, log_reader_io_process_input);
else
iv_fd_set_handler_in(&self->fd_watch, NULL);
if (cond & G_IO_OUT)
iv_fd_set_handler_out(&self->fd_watch, log_reader_io_process_input);
else
iv_fd_set_handler_out(&self->fd_watch, NULL);
if (cond & (G_IO_IN + G_IO_OUT))
iv_fd_set_handler_err(&self->fd_watch, log_reader_io_process_input);
else
iv_fd_set_handler_err(&self->fd_watch, NULL);
}
else
{
if (self->options->follow_freq > 0)
{
if (iv_timer_registered(&self->follow_timer))
iv_timer_unregister(&self->follow_timer);
iv_validate_now();
self->follow_timer.expires = iv_now;
timespec_add_msec(&self->follow_timer.expires, self->options->follow_freq);
iv_timer_register(&self->follow_timer);
}
else
{
/* NOTE: we don't need to unregister the timer here as follow_freq
* never changes during runtime, thus if ever it was registered that
* also means that we go into the if branch above. */
}
}
}
