static void
affile_sd_recover_state(LogPipe *s, GlobalConfig *cfg, LogProtoServer *proto)
{
AFFileSourceDriver *self = (AFFileSourceDriver *) s;
if (self->file_open_options.is_pipe || self->follow_freq <= 0)
return;
if (!log_proto_server_restart_with_state(proto, cfg->state, affile_sd_format_persist_name(self)))
{
msg_error("Error converting persistent state from on-disk format, losing file position information",
evt_tag_str("filename", self->filename->str),
NULL);
return;
}
}
static void
affile_sd_save_pos(LogPipe *s, GlobalConfig *cfg)
{
AFFileSourceDriver *self = (AFFileSourceDriver *) s;
if (cfg->persist && (self->flags & AFFILE_PIPE) == 0)
{
SerializeArchive *archive;
GString *str = g_string_sized_new(0);
archive = serialize_string_archive_new(str);
log_reader_save_state((LogReader *) self->reader, archive);
cfg_persist_config_add_survivor(cfg, affile_sd_format_persist_name(self), str->str, str->len, TRUE);
serialize_archive_free(archive);
g_string_free(str, TRUE);
}
}
static void
affile_sd_load_pos(LogPipe *s, GlobalConfig *cfg)
{
AFFileSourceDriver *self = (AFFileSourceDriver *) s;
gchar *str;
off_t cur_pos;
gsize str_len;
gint version;
if ((self->flags & AFFILE_PIPE) || !cfg->persist)
return;
str = cfg_persist_config_fetch(cfg, affile_sd_format_persist_name(self), &str_len, &version);
if (!str)
return;
if (version == 2)
{
/* NOTE: legacy, should be removed once the release after 3.0 is published */
cur_pos = strtoll(str, NULL, 10);
log_reader_update_pos((LogReader *) self->reader, cur_pos);
g_free(str);
}
else if (version >= 3)
{
GString *g_str = g_string_new("");
SerializeArchive *archive;
g_str = g_string_assign_len(g_str, str, str_len);
archive = serialize_string_archive_new(g_str);
log_reader_restore_state((LogReader *) self->reader, archive);
serialize_archive_free(archive);
g_string_free(g_str, TRUE);
g_free(str);
}
}
