diff options
Diffstat (limited to 'src/coopgammad.c')
| -rw-r--r-- | src/coopgammad.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/coopgammad.c b/src/coopgammad.c index 6875849..e81840e 100644 --- a/src/coopgammad.c +++ b/src/coopgammad.c @@ -153,6 +153,26 @@ static void sig_connection(int signo) } +/** + * Called when the process receives + * a signal telling it to dump its + * state to stderr + * + * @param signo The received signal + */ +static void sig_info(int signo) +{ + int saved_errno = errno; + char* env; + signal(signo, sig_info); + env = getenv("COOPGAMMAD_PIDFILE_TOKEN"); + fprintf(stderr, "PID file token: %s\n", env ? env : "(null)"); + fprintf(stderr, "PID file: %s\n", pidpath ? pidpath : "(null)"); + fprintf(stderr, "Socket path: %s\n", socketpath ? socketpath : "(null)"); + state_dump(); + errno = saved_errno; +} + /** * Parse adjustment method name (or stringised number) @@ -196,6 +216,10 @@ static int get_method(const char* restrict arg) static int set_up_signals(void) { if ((signal(SIGUSR1, sig_reexec) == SIG_ERR) || + (signal(SIGUSR2, sig_info) == SIG_ERR) || +#if defined(SIGINFO) + (signal(SIGINFO, sig_info) == SIG_ERR) || +#endif (signal(SIGTERM, sig_terminate) == SIG_ERR) || (signal(SIGRTMIN + 0, sig_connection) == SIG_ERR) || (signal(SIGRTMIN + 1, sig_connection) == SIG_ERR)) @@ -740,6 +764,8 @@ static void usage(void) * The process closes stdout when the socket has been created * * @signal SIGUSR1 Re-execute to updated process image + * @signal SIGUSR2 Dump the state of the process to standard error + * @signal SIGINFO Ditto * @signal SIGTERM Terminate the process gracefully * @signal SIGRTMIN+0 Disconnect from the site * @signal SiGRTMIN+1 Reconnect to the site |