core: add support for a configurable system-wide start-up timeout

When this system-wide start-up timeout is hit we execute one of the
failure actions already implemented for services that fail.

This should not only be useful on embedded devices, but also on laptops
which have the power-button reachable when the lid is closed. This
devices, when in a backpack might get powered on by accident due to the
easily reachable power button. We want to make sure that the system
turns itself off if it starts up due this after a while.

When the system manages to fully start-up logind will suspend the
machine by default if the lid is closed. However, in some cases we don't
even get as far as logind, and the boot hangs much earlier, for example
because we ask for a LUKS password that nobody ever enters.

Yeah, this is a real-life problem on my Yoga 13, which has one of those
easily accessible power buttons, even if the device is closed.

1 files changed, 2 insertions, 14 deletions

diff --git a/src/core/service.h b/src/core/service.h
index 0227321d9..5bcfd1433 100644
--- a/src/core/service.h
+++ b/src/core/service.h
@@ -28,6 +28,7 @@ typedef struct Service Service;
 #include "ratelimit.h"
 #include "kill.h"
 #include "exit-status.h"
+#include "failure-action.h"
 
 typedef enum ServiceState {
         SERVICE_DEAD,
@@ -113,15 +114,6 @@ typedef enum ServiceResult {
         _SERVICE_RESULT_INVALID = -1
 } ServiceResult;
 
-typedef enum FailureAction {
-        SERVICE_FAILURE_ACTION_NONE,
-        SERVICE_FAILURE_ACTION_REBOOT,
-        SERVICE_FAILURE_ACTION_REBOOT_FORCE,
-        SERVICE_FAILURE_ACTION_REBOOT_IMMEDIATE,
-        _SERVICE_FAILURE_ACTION_MAX,
-        _SERVICE_FAILURE_ACTION_INVALID = -1
-} FailureAction;
-
 struct Service {
         Unit meta;
 
@@ -193,10 +185,9 @@ struct Service {
         char *status_text;
         int status_errno;
 
-        FailureAction failure_action;
-
         RateLimit start_limit;
         FailureAction start_limit_action;
+        FailureAction failure_action;
         char *reboot_arg;
 
         UnitRef accept_socket;
@@ -234,6 +225,3 @@ NotifyState notify_state_from_string(const char *s) _pure_;
 
 const char* service_result_to_string(ServiceResult i) _const_;
 ServiceResult service_result_from_string(const char *s) _pure_;
-
-const char* failure_action_to_string(FailureAction i) _const_;
-FailureAction failure_action_from_string(const char *s) _pure_;