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-rw-r--r--src/server.c4
-rw-r--r--src/signal.c43
-rw-r--r--src/signal.h20
-rw-r--r--src/worker.c4
-rw-r--r--src/worker_main.c1
5 files changed, 52 insertions, 20 deletions
diff --git a/src/server.c b/src/server.c
index 58833a1..33610f3 100644
--- a/src/server.c
+++ b/src/server.c
@@ -385,6 +385,10 @@ int server_main(struct server *server)
{
int ret = 0;
+ ret = signal_install_global_handler();
+ if (ret < 0)
+ return ret;
+
while (!global_stop_flag) {
log("Waiting for new connections\n");
diff --git a/src/signal.c b/src/signal.c
index b5c27ec..d721f67 100644
--- a/src/signal.c
+++ b/src/signal.c
@@ -6,12 +6,55 @@
*/
#include "signal.h"
+#include "compiler.h"
#include "log.h"
#include <signal.h>
+#include <string.h>
volatile sig_atomic_t global_stop_flag = 0;
+static void set_global_stop_flag(UNUSED int signum)
+{
+ global_stop_flag = 1;
+}
+
+static int my_sigaction(int signo, const struct sigaction *act)
+{
+ int ret = 0;
+
+ ret = sigaction(signo, act, NULL);
+ if (ret < 0) {
+ log_errno("sigaction");
+ return ret;
+ }
+
+ return ret;
+}
+
+int signal_install_global_handler()
+{
+ int ret = 0;
+
+ struct sigaction sa;
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = set_global_stop_flag;
+
+ /* Don't care about proper cleanup here; we exit the program if this
+ * fails anyway. */
+ ret = my_sigaction(SIGINT, &sa);
+ if (ret < 0)
+ return ret;
+ ret = my_sigaction(SIGQUIT, &sa);
+ if (ret < 0)
+ return ret;
+ ret = my_sigaction(SIGTERM, &sa);
+ if (ret < 0)
+ return ret;
+
+ return ret;
+}
+
int signal_set(const sigset_t *new, sigset_t *old)
{
int ret = 0;
diff --git a/src/signal.h b/src/signal.h
index 22305a9..3509a92 100644
--- a/src/signal.h
+++ b/src/signal.h
@@ -8,28 +8,10 @@
#ifndef __SIGNAL_H__
#define __SIGNAL_H__
-#include "compiler.h"
-
#include <signal.h>
-#include <string.h>
extern volatile sig_atomic_t global_stop_flag;
-
-static void signal_handler(UNUSED int signum)
-{
- global_stop_flag = 1;
-}
-
-static __attribute__((constructor)) void signal_handler_install()
-{
- struct sigaction sa;
- memset(&sa, 0, sizeof(sa));
- sa.sa_handler = signal_handler;
-
- sigaction(SIGINT, &sa, NULL);
- sigaction(SIGQUIT, &sa, NULL);
- sigaction(SIGTERM, &sa, NULL);
-}
+int signal_install_global_handler();
int signal_set(const sigset_t *new, sigset_t *old);
diff --git a/src/worker.c b/src/worker.c
index cf57ad6..05243ac 100644
--- a/src/worker.c
+++ b/src/worker.c
@@ -181,6 +181,10 @@ int worker_main(struct worker *worker, UNUSED int argc, UNUSED char *argv[])
{
int ret = 0;
+ ret = signal_install_global_handler();
+ if (ret < 0)
+ return ret;
+
ret = msg_send_new_worker(worker);
if (ret < 0)
return ret;
diff --git a/src/worker_main.c b/src/worker_main.c
index 540eea1..fc3d0a2 100644
--- a/src/worker_main.c
+++ b/src/worker_main.c
@@ -7,7 +7,6 @@
#include "cmd_line.h"
#include "const.h"
-#include "signal.h"
#include "worker.h"
#include <getopt.h>