[libvirt PATCH v2 1/6] daemons: Support --timeout 0

[Andrea Bolognani]

When using systemd we want to take advantage of socket activation
instead of keeping daemons running all the time, so we default to
shutting them down after two minutes of inactivity.

At the same time, we want it to be possible for the admin to opt
out of this behavior and disable timeouts entirely. A very natural
way to do so would be to specify a zero-length timeout, but that's
currently not accepted by the command line parser. Address that.

Signed-off-by: Andrea Bolognani <abologna at redhat.com>
Reviewed-by: Ján Tomko <jtomko at redhat.com>
---
 src/locking/lock_daemon.c  | 6 +++---
 src/logging/log_daemon.c   | 6 +++---
 src/remote/remote_daemon.c | 6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/locking/lock_daemon.c b/src/locking/lock_daemon.c
index 3d33995beb..4eff63014a 100644
--- a/src/locking/lock_daemon.c
+++ b/src/locking/lock_daemon.c
@@ -872,7 +872,7 @@ int main(int argc, char **argv) {
     int pid_file_fd = -1;
     char *sock_file = NULL;
     char *admin_sock_file = NULL;
-    int timeout = -1;        /* -t: Shutdown timeout */
+    int timeout = 0;         /* -t: Shutdown timeout */
     char *state_file = NULL;
     bool implicit_conf = false;
     mode_t old_umask;
@@ -922,7 +922,7 @@ int main(int argc, char **argv) {
 
         case 't':
             if (virStrToLong_i(optarg, &tmp, 10, &timeout) != 0
-                || timeout <= 0
+                || timeout < 0
                 /* Ensure that we can multiply by 1000 without overflowing.  */
                 || timeout > INT_MAX / 1000) {
                 VIR_ERROR(_("Invalid value for timeout"));
@@ -1123,7 +1123,7 @@ int main(int argc, char **argv) {
             adminSrv = virNetDaemonGetServer(lockDaemon->dmn, "admin");
     }
 
-    if (timeout != -1) {
+    if (timeout > 0) {
         VIR_DEBUG("Registering shutdown timeout %d", timeout);
         virNetDaemonAutoShutdown(lockDaemon->dmn,
                                  timeout);
diff --git a/src/logging/log_daemon.c b/src/logging/log_daemon.c
index dcafcda926..f37054706e 100644
--- a/src/logging/log_daemon.c
+++ b/src/logging/log_daemon.c
@@ -653,7 +653,7 @@ int main(int argc, char **argv) {
     int pid_file_fd = -1;
     char *sock_file = NULL;
     char *admin_sock_file = NULL;
-    int timeout = -1;        /* -t: Shutdown timeout */
+    int timeout = 0;         /* -t: Shutdown timeout */
     char *state_file = NULL;
     bool implicit_conf = false;
     mode_t old_umask;
@@ -703,7 +703,7 @@ int main(int argc, char **argv) {
 
         case 't':
             if (virStrToLong_i(optarg, &tmp, 10, &timeout) != 0
-                || timeout <= 0
+                || timeout < 0
                 /* Ensure that we can multiply by 1000 without overflowing.  */
                 || timeout > INT_MAX / 1000) {
                 VIR_ERROR(_("Invalid value for timeout"));
@@ -905,7 +905,7 @@ int main(int argc, char **argv) {
             adminSrv = virNetDaemonGetServer(logDaemon->dmn, "admin");
     }
 
-    if (timeout != -1) {
+    if (timeout > 0) {
         VIR_DEBUG("Registering shutdown timeout %d", timeout);
         virNetDaemonAutoShutdown(logDaemon->dmn,
                                  timeout);
diff --git a/src/remote/remote_daemon.c b/src/remote/remote_daemon.c
index a1552800e9..7eec599177 100644
--- a/src/remote/remote_daemon.c
+++ b/src/remote/remote_daemon.c
@@ -770,7 +770,7 @@ int main(int argc, char **argv) {
     char *sock_file = NULL;
     char *sock_file_ro = NULL;
     char *sock_file_adm = NULL;
-    int timeout = -1;        /* -t: Shutdown timeout */
+    int timeout = 0;         /* -t: Shutdown timeout */
     int verbose = 0;
     int godaemon = 0;
 #ifdef WITH_IP
@@ -844,7 +844,7 @@ int main(int argc, char **argv) {
 
         case 't':
             if (virStrToLong_i(optarg, &tmp, 10, &timeout) != 0
-                || timeout <= 0
+                || timeout < 0
                 /* Ensure that we can multiply by 1000 without overflowing.  */
                 || timeout > INT_MAX / 1000) {
                 VIR_ERROR(_("Invalid value for timeout"));
@@ -1107,7 +1107,7 @@ int main(int argc, char **argv) {
         goto cleanup;
     }
 
-    if (timeout != -1) {
+    if (timeout > 0) {
         VIR_DEBUG("Registering shutdown timeout %d", timeout);
         virNetDaemonAutoShutdown(dmn, timeout);
     }
-- 
2.25.1