static void parse_version_check(struct PgDatabase *db, PGresult *res)
{
char *ver;
if (PQntuples(res) != 1) {
log_debug("%s: calling pgq.version() failed", db->name);
goto badpgq;
}
ver = PQgetvalue(res, 0, 0);
if (ver[0] < '3') {
log_debug("%s: bad pgq version: %s", db->name, ver);
goto badpgq;
}
log_info("%s: pgq version ok: %s", db->name, ver);
PQclear(res);
run_ticker(db);
if (!db->c_maint)
launch_maint(db);
if (!db->c_retry)
launch_retry(db);
return;
badpgq:
PQclear(res);
db->has_pgq = false;
log_info("%s: bad pgq version, ignoring", db->name);
close_ticker(db, cf.check_period);
}
static void tick_handler(struct PgSocket *s, void *arg, enum PgEvent ev, PGresult *res)
{
struct PgDatabase *db = arg;
switch (ev) {
case DB_CONNECT_OK:
run_pgq_check(db);
break;
case DB_RESULT_OK:
switch (db->state) {
case DB_TICKER_CHECK_PGQ:
parse_pgq_check(db, res);
break;
case DB_TICKER_CHECK_VERSION:
parse_version_check(db, res);
break;
case DB_TICKER_RUN:
parse_ticker_result(db, res);
break;
default:
fatal("bad state");
}
break;
case DB_TIMEOUT:
log_debug("%s: tick timeout", db->name);
if (!db_connection_valid(db->c_ticker))
launch_ticker(db);
else
run_ticker(db);
break;
default:
db_reconnect(db->c_ticker);
}
}
int main (int argc, char *argv[])
{
db_t *database;
int opt;
log_debug_flags = DEBUG_TICKER | DEBUG_TAKEOVER | DEBUG_FAME | DEBUG_HERO | DEBUG_ARTEFACT;
while ((opt = getopt(argc, argv, "C:V")) >= 0)
{
switch (opt)
{
case 'C':
config_file = optarg;
break;
case 'V':
puts("$Id: ticker.c 2391 2009-01-12 20:14:20Z root $");
return 0;
default:
return 1;
}
}
#ifdef DEBUG_MALLOC
GC_find_leak = 1;
#endif
/* init random number generator */
srand(time(NULL));
/* init function parser */
function_setup();
/* read config file */
config_read_file(config_file);
fetch_config_values();
/* open ticker logfiles */
if (chdir(ticker_home))
error("%s: %s", ticker_home, strerror(errno));
debug_log = log_handler_new(debug_logfile);
error_log = log_handler_new(error_logfile);
msg_log = log_handler_new(msg_logfile);
log_set_debug_handler(debug_log);
log_set_warning_handler(error_log);
log_set_error_handler(error_log);
message_set_log_handler(msg_log);
/* connect to the database */
debug(DEBUG_TICKER, "init");
write_pidfile(pid_file);
try {
database = db_connect(db_host, db_user, db_passwd, db_name);
} catch (DB_EXCEPTION) {
error("%s", except_msg);
} end_try;
/* read last tick */
tick_init();
/* install signal handler */
signal(SIGTERM, set_finish);
signal(SIGINT, set_finish);
#ifdef SIGHUP
signal(SIGHUP, set_reload);
#endif
/* start the ticker */
run_ticker(database);
/* clean up */
debug(DEBUG_TICKER, "cleanup");
db_close(database);
remove(pid_file);
return 0;
}
