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repmgrd: further code ported

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This commit is contained in:
Ian Barwick
2017-06-20 09:17:29 +09:00
parent f713f30ef8
commit 94a88326ef
4 changed files with 190 additions and 2 deletions
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82
repmgrd.c
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@@ -8,11 +8,11 @@
#include "config.h"
#include <stdio.h>
#include <signal.h>
#include <sys/stat.h>
#define OPT_HELP 1
#define OPT_HELP 1
static char *config_file = NULL;
static bool verbose = false;
@@ -22,12 +22,30 @@ static bool daemonize = false;
t_configuration_options config_file_options = T_CONFIGURATION_OPTIONS_INITIALIZER;
static t_node_info local_node_info;
static PGconn *local_conn = NULL;
static PGconn *master_conn = NULL;
/*
* Record receipt SIGHUP; will cause configuration file to be reread at the
* appropriate point in the main loop.
*/
static volatile sig_atomic_t got_SIGHUP = false;
static void show_help(void);
static void show_usage(void);
static void daemonize_process(void);
static void check_and_create_pid_file(const char *pid_file);
#ifndef WIN32
static void setup_event_handlers(void);
static void handle_sighup(SIGNAL_ARGS);
static void handle_sigint(SIGNAL_ARGS);
#endif
static void close_connections();
static void terminate(int retval);
int
main(int argc, char **argv)
{
@@ -171,6 +189,10 @@ main(int argc, char **argv)
check_and_create_pid_file(pid_file);
}
#ifndef WIN32
setup_event_handlers();
#endif
while(1) {
sleep(1);
}
@@ -306,6 +328,30 @@ check_and_create_pid_file(const char *pid_file)
}
#ifndef WIN32
static void
handle_sigint(SIGNAL_ARGS)
{
terminate(SUCCESS);
}
/* SIGHUP: set flag to re-read config file at next convenient time */
static void
handle_sighup(SIGNAL_ARGS)
{
got_SIGHUP = true;
}
static void
setup_event_handlers(void)
{
pqsignal(SIGHUP, handle_sighup);
pqsignal(SIGINT, handle_sigint);
pqsignal(SIGTERM, handle_sigint);
}
#endif
void
show_usage(void)
{
@@ -345,3 +391,35 @@ show_help(void)
printf(_("%s monitors a cluster of servers and optionally performs failover.\n"), progname());
}
static void
close_connections()
{
if (PQstatus(master_conn) == CONNECTION_OK)
{
/* cancel any pending queries to the master */
if (PQisBusy(master_conn) == 1)
cancel_query(master_conn, config_file_options.master_response_timeout);
PQfinish(master_conn);
}
if (PQstatus(local_conn) == CONNECTION_OK)
PQfinish(local_conn);
}
static void
terminate(int retval)
{
close_connections();
logger_shutdown();
if (pid_file)
{
unlink(pid_file);
}
log_info(_("%s terminating...\n"), progname());
exit(retval);
}