cellular-infrastructure
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osmo-bsc-nat
mirror of https://gerrit.osmocom.org/osmo-bsc-nat
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Add signal handler 

Related: OS#2545
Change-Id: I303e9275a2f1f6f2da742089d079ba604ee5a36b
This commit is contained in:
Oliver Smith 2021-12-02 15:05:04 +01:00
parent ff32401af3
commit 5704c7e2ce
1 changed files with 44 additions and 0 deletions
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44
src/osmo-bsc-nat/main.c
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@ -131,6 +131,49 @@ static void main_vty_init(int argc, char **argv)
}
}
static void signal_handler(int signum)
{
fprintf(stdout, "signal %u received\n", signum);
switch (signum) {
case SIGINT:
case SIGTERM:
/* If SIGTERM was already sent before, just terminate immediately. */
if (osmo_select_shutdown_requested())
exit(-1);
osmo_select_shutdown_request();
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report and
* then run default SIGABRT handler, who will generate coredump
* and abort the process. abort() should do this for us after we
* return, but program wouldn't exit if an external SIGABRT is
* received.
*/
talloc_report(tall_vty_ctx, stderr);
talloc_report_full(tall_bsc_nat_ctx, stderr);
signal(SIGABRT, SIG_DFL);
raise(SIGABRT);
break;
case SIGUSR1:
talloc_report(tall_vty_ctx, stderr);
talloc_report_full(tall_bsc_nat_ctx, stderr);
break;
default:
break;
}
}
static void signal_handler_init(void)
{
signal(SIGINT, &signal_handler);
signal(SIGTERM, &signal_handler);
signal(SIGABRT, &signal_handler);
signal(SIGUSR1, &signal_handler);
signal(SIGUSR2, &signal_handler);
osmo_init_ignore_signals();
}
int main(int argc, char **argv)
{
int rc;
@ -145,6 +188,7 @@ int main(int argc, char **argv)
g_bsc_nat = bsc_nat_alloc(tall_bsc_nat_ctx);
main_vty_init(argc, argv);
signal_handler_init();
while (!osmo_select_shutdown_done())
osmo_select_main_ctx(0);