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commit 8bbf383316f1bb16e45b05ad6e2ba9def88ba420
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Author: Tomas Korbar <tkorbar@redhat.com>
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Date: Mon May 18 14:57:39 2020 +0200
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improve sig_handler function
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diff --git a/memcached.c b/memcached.c
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index 3916a8c..2547305 100644
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--- a/memcached.c
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+++ b/memcached.c
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@@ -189,7 +189,7 @@ static enum transmit_result transmit(conn *c);
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* can block the listener via a condition.
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*/
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static volatile bool allow_new_conns = true;
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-static bool stop_main_loop = false;
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+static int stop_main_loop = NOT_STOP;
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static struct event maxconnsevent;
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static void maxconns_handler(const int fd, const short which, void *arg) {
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struct timeval t = {.tv_sec = 0, .tv_usec = 10000};
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@@ -7850,8 +7850,8 @@ static void remove_pidfile(const char *pid_file) {
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}
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static void sig_handler(const int sig) {
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+ stop_main_loop = EXIT_NORMALLY;
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printf("Signal handled: %s.\n", strsignal(sig));
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- exit(EXIT_SUCCESS);
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}
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static void sighup_handler(const int sig) {
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@@ -7860,7 +7860,7 @@ static void sighup_handler(const int sig) {
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static void sig_usrhandler(const int sig) {
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printf("Graceful shutdown signal handled: %s.\n", strsignal(sig));
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- stop_main_loop = true;
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+ stop_main_loop = GRACE_STOP;
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}
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#ifndef HAVE_SIGIGNORE
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@@ -9839,7 +9839,18 @@ int main (int argc, char **argv) {
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}
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}
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- fprintf(stderr, "Gracefully stopping\n");
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+ switch (stop_main_loop) {
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+ case GRACE_STOP:
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+ fprintf(stderr, "Gracefully stopping\n");
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+ break;
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+ case EXIT_NORMALLY:
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+ fprintf(stderr, "Exiting normally\n");
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+ break;
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+ default:
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+ fprintf(stderr, "Exiting on error\n");
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+ break;
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+ }
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+
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stop_threads();
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int i;
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// FIXME: make a function callable from threads.c
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@@ -9848,7 +9859,7 @@ int main (int argc, char **argv) {
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conn_close(conns[i]);
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}
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}
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- if (memory_file != NULL) {
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+ if (memory_file != NULL && stop_main_loop == GRACE_STOP) {
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restart_mmap_close();
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}
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diff --git a/memcached.h b/memcached.h
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index 77f52aa..795ea8f 100644
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--- a/memcached.h
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+++ b/memcached.h
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@@ -236,6 +236,12 @@ enum pause_thread_types {
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RESUME_WORKER_THREADS
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};
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+enum stop_reasons {
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+ NOT_STOP,
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+ GRACE_STOP,
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+ EXIT_NORMALLY
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+};
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+
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#define IS_TCP(x) (x == tcp_transport)
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#define IS_UDP(x) (x == udp_transport)
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