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daemon: Throttle max respawning rate.
[openvswitch]
/
vswitchd
/
ovs-vswitchd.c
diff --git
a/vswitchd/ovs-vswitchd.c
b/vswitchd/ovs-vswitchd.c
index 7b0661ec63e2850e1ae69fc085c06eac3edef307..6478156031e4d431a3f1942c994b8faea170bd1d 100644
(file)
--- a/
vswitchd/ovs-vswitchd.c
+++ b/
vswitchd/ovs-vswitchd.c
@@
-22,6
+22,9
@@
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
+#ifdef HAVE_MLOCKALL
+#include <sys/mman.h>
+#endif
#include "bridge.h"
#include "command-line.h"
#include "bridge.h"
#include "command-line.h"
@@
-47,6
+50,8
@@
#include "vlog.h"
#define THIS_MODULE VLM_vswitchd
#include "vlog.h"
#define THIS_MODULE VLM_vswitchd
+static unixctl_cb_func ovs_vswitchd_exit;
+
static const char *parse_options(int argc, char *argv[]);
static void usage(void) NO_RETURN;
static const char *parse_options(int argc, char *argv[]);
static void usage(void) NO_RETURN;
@@
-58,7
+63,7
@@
main(int argc, char *argv[])
struct ovsdb_idl *idl;
const char *remote;
bool need_reconfigure;
struct ovsdb_idl *idl;
const char *remote;
bool need_reconfigure;
- bool inited;
+ bool inited
, exiting
;
unsigned int idl_seqno;
int retval;
unsigned int idl_seqno;
int retval;
@@
-79,6
+84,7
@@
main(int argc, char *argv[])
if (retval) {
exit(EXIT_FAILURE);
}
if (retval) {
exit(EXIT_FAILURE);
}
+ unixctl_command_register("exit", ovs_vswitchd_exit, &exiting);
daemonize_complete();
daemonize_complete();
@@
-87,7
+93,8
@@
main(int argc, char *argv[])
need_reconfigure = false;
inited = false;
need_reconfigure = false;
inited = false;
- for (;;) {
+ exiting = false;
+ while (!exiting) {
if (signal_poll(sighup)) {
vlog_reopen_log_file();
}
if (signal_poll(sighup)) {
vlog_reopen_log_file();
}
@@
-136,6
+143,7
@@
parse_options(int argc, char *argv[])
{
enum {
OPT_PEER_CA_CERT = UCHAR_MAX + 1,
{
enum {
OPT_PEER_CA_CERT = UCHAR_MAX + 1,
+ OPT_MLOCKALL,
OPT_FAKE_PROC_NET,
VLOG_OPTION_ENUMS,
LEAK_CHECKER_OPTION_ENUMS,
OPT_FAKE_PROC_NET,
VLOG_OPTION_ENUMS,
LEAK_CHECKER_OPTION_ENUMS,
@@
-144,6
+152,7
@@
parse_options(int argc, char *argv[])
static struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
static struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
+ {"mlockall", no_argument, 0, OPT_MLOCKALL},
{"fake-proc-net", no_argument, 0, OPT_FAKE_PROC_NET},
DAEMON_LONG_OPTIONS,
VLOG_LONG_OPTIONS,
{"fake-proc-net", no_argument, 0, OPT_FAKE_PROC_NET},
DAEMON_LONG_OPTIONS,
VLOG_LONG_OPTIONS,
@@
-175,6
+184,16
@@
parse_options(int argc, char *argv[])
OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION);
exit(EXIT_SUCCESS);
OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION);
exit(EXIT_SUCCESS);
+ case OPT_MLOCKALL:
+#ifdef HAVE_MLOCKALL
+ if (mlockall(MCL_CURRENT | MCL_FUTURE)) {
+ VLOG_ERR("mlockall failed: %s", strerror(errno));
+ }
+#else
+ VLOG_ERR("mlockall not supported on this system");
+#endif
+ break;
+
case OPT_FAKE_PROC_NET:
error = proc_net_compat_init();
if (error) {
case OPT_FAKE_PROC_NET:
error = proc_net_compat_init();
if (error) {
@@
-237,3
+256,12
@@
usage(void)
leak_checker_usage();
exit(EXIT_SUCCESS);
}
leak_checker_usage();
exit(EXIT_SUCCESS);
}
+
+static void
+ovs_vswitchd_exit(struct unixctl_conn *conn, const char *args OVS_UNUSED,
+ void *exiting_)
+{
+ bool *exiting = exiting_;
+ *exiting = true;
+ unixctl_command_reply(conn, 200, NULL);
+}