/* run in the main thread in reaction to a log_reader_reopen to change
* the source LogProto instance. It needs to be ran in the main
* thread as it reregisters the watches associated with the main
* thread. */
void
log_reader_reopen_deferred(gpointer s)
{
gpointer *args = (gpointer *) s;
LogReader *self = args[0];
LogProto *proto = args[1];
log_reader_stop_watches(self);
if (self->io_job.working)
{
/* NOTE: proto can be NULL */
self->pending_proto = proto;
self->pending_proto_present = TRUE;
return;
}
if (self->proto)
log_proto_free(self->proto);
self->proto = proto;
if(proto)
{
log_reader_start_watches(self);
}
}
static gboolean
log_reader_init(LogPipe *s)
{
LogReader *self = (LogReader *) s;
if (!log_source_init(s))
return FALSE;
/* check for new data */
if (self->options->padding)
{
if (self->options->msg_size < self->options->padding)
{
msg_error("Buffer is too small to hold padding number of bytes",
evt_tag_int("padding", self->options->padding),
evt_tag_int("msg_size", self->options->msg_size),
NULL);
return FALSE;
}
}
if (self->options->text_encoding)
{
if (!log_proto_set_encoding(self->proto, self->options->text_encoding))
{
msg_error("Unknown character set name specified",
evt_tag_str("encoding", self->options->text_encoding),
NULL);
return FALSE;
}
}
if (!self->options->parse_options.format_handler)
{
msg_error("Unknown format plugin specified",
evt_tag_str("format", self->options->parse_options.format),
NULL);
return FALSE;
}
if (!log_reader_start_watches(self))
return FALSE;
iv_event_register(&self->schedule_wakeup);
return TRUE;
}
static void
log_reader_work_finished(void *s)
{
LogReader *self = (LogReader *) s;
if (self->pending_proto_present)
{
/* pending proto is only set in the main thread, so no need to
* lock it before coming here. After we're syncing with the
* log_writer_reopen() call, quite possibly coming from a
* non-main thread. */
g_static_mutex_lock(&self->pending_proto_lock);
if (self->proto)
log_proto_free(self->proto);
self->proto = self->pending_proto;
self->pending_proto = NULL;
self->pending_proto_present = FALSE;
g_cond_signal(self->pending_proto_cond);
g_static_mutex_unlock(&self->pending_proto_lock);
}
if (self->notify_code)
{
gint notify_code = self->notify_code;
self->notify_code = 0;
log_pipe_notify(self->control, &self->super.super, notify_code, self);
}
if (self->super.super.flags & PIF_INITIALIZED)
{
/* reenable polling the source assuming that we're still in
* business (e.g. the reader hasn't been uninitialized) */
log_proto_reset_error(self->proto);
log_reader_start_watches(self);
}
log_pipe_unref(&self->super.super);
}
static gboolean
log_reader_init(LogPipe *s)
{
LogReader *self = (LogReader *) s;
if (!log_source_init(s))
return FALSE;
if (!log_proto_server_validate_options(self->proto))
return FALSE;
if (!self->options->parse_options.format_handler)
{
msg_error("Unknown format plugin specified",
evt_tag_str("format", self->options->parse_options.format),
NULL);
return FALSE;
}
if (!log_reader_start_watches(self))
return FALSE;
iv_event_register(&self->schedule_wakeup);
return TRUE;
}
