static void
log_writer_queue(LogPipe *s, LogMessage *lm, const LogPathOptions *path_options)
{
LogWriter *self = (LogWriter *) s;
if (self->options->suppress > 0 && log_writer_last_msg_check(self, lm, path_options))
return;
stats_counter_inc(self->processed_messages);
if (!log_queue_push_tail(self->queue, lm, path_options))
{
/* drop incoming message, we must ack here, otherwise the sender might
* block forever, however this should not happen unless the sum of
* window_sizes of sources feeding this writer exceeds log_fifo_size
* or if flow control is not turned on.
*/
/* we don't send a message here since the system is draining anyway */
stats_counter_inc(self->dropped_messages);
msg_debug("Destination queue full, dropping message",
evt_tag_int("queue_len", log_queue_get_length(self->queue)),
evt_tag_int("mem_fifo_size", self->options->mem_fifo_size),
NULL);
log_msg_drop(lm, path_options);
return;
}
}
/* NOTE: runs in the reader thread */
static void
log_writer_queue(LogPipe *s, LogMessage *lm, const LogPathOptions *path_options, gpointer user_data)
{
LogWriter *self = (LogWriter *) s;
LogPathOptions local_options;
if (!path_options->flow_control_requested &&
(self->suspended || !(self->flags & LW_SOFT_FLOW_CONTROL)))
{
/* NOTE: this code ACKs the message back if there's a write error in
* order not to hang the client in case of a disk full */
path_options = log_msg_break_ack(lm, path_options, &local_options);
}
if (self->options->suppress > 0 && log_writer_last_msg_check(self, lm, path_options))
return;
stats_counter_inc(self->processed_messages);
log_queue_push_tail(self->queue, lm, path_options);
}