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authorHarald Welte <laforge@gnumonks.org>2017-08-20 20:57:09 +0200
committerHarald Welte <laforge@gnumonks.org>2017-08-20 20:57:09 +0200
commiteed8c1bfae1d151e135b574d83ed295d36ad8b44 (patch)
treeb31142edad09f7eb5400976d6de8fc5f238a17fb
parent485a1be9d8fc29d743767e733dfc6b16efa77a31 (diff)
OsmoSTP: Install our default set of signal handlers
-rw-r--r--stp/stp_main.c42
1 files changed, 41 insertions, 1 deletions
diff --git a/stp/stp_main.c b/stp/stp_main.c
index ac8e6dd..8e3282c 100644
--- a/stp/stp_main.c
+++ b/stp/stp_main.c
@@ -23,8 +23,11 @@
#include <string.h>
#include <unistd.h>
#include <getopt.h>
+#include <signal.h>
#include <osmocom/core/select.h>
+#include <osmocom/core/signal.h>
+#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/application.h>
@@ -42,6 +45,8 @@
#include <osmocom/sigtran/protocol/sua.h>
#include <osmocom/sigtran/protocol/m3ua.h>
+static void *tall_stp_ctx;
+
/* we only use logging sub-systems of the various libraries so far */
static const struct log_info_cat log_info_cat[] = {
};
@@ -122,10 +127,38 @@ static void handle_options(int argc, char **argv)
}
}
+static void signal_handler(int signal)
+{
+ fprintf(stdout, "signal %u received\n", signal);
+
+ switch (signal) {
+ case SIGINT:
+ case SIGTERM:
+ osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL);
+ sleep(1);
+ break;
+ case SIGABRT:
+ osmo_generate_backtrace();
+ /* in case of abort, we want to obtain a talloc report
+ * and then return to the caller, who will abort the process */
+ case SIGUSR1:
+ talloc_report(tall_vty_ctx, stderr);
+ talloc_report_full(tall_stp_ctx, stderr);
+ break;
+ case SIGUSR2:
+ talloc_report_full(tall_vty_ctx, stderr);
+ break;
+ default:
+ break;
+ }
+}
+
int main(int argc, char **argv)
{
int rc;
+ tall_stp_ctx = talloc_named_const(NULL, 1, "osmo-stp");
+
osmo_init_logging(&log_info);
vty_init(&vty_info);
@@ -137,7 +170,7 @@ int main(int argc, char **argv)
osmo_ss7_init();
osmo_fsm_log_addr(false);
logging_vty_add_cmds(&log_info);
- osmo_ss7_vty_init_sg(NULL);
+ osmo_ss7_vty_init_sg(tall_stp_ctx);
osmo_fsm_vty_add_cmds();
rc = vty_read_config_file(cmdline_config.config_file, NULL);
@@ -153,6 +186,13 @@ int main(int argc, char **argv)
exit(1);
}
+ signal(SIGINT, &signal_handler);
+ signal(SIGTERM, &signal_handler);
+ signal(SIGABRT, &signal_handler);
+ signal(SIGUSR1, &signal_handler);
+ signal(SIGUSR2, &signal_handler);
+ osmo_init_ignore_signals();
+
if (cmdline_config.daemonize) {
rc = osmo_daemonize();
if (rc < 0) {