watchdog: Implement initialized using the new dbus interface

This makes it possible for the phosphor-host-ipmi or any other watchdog
managing daemon to report to the caller that the watchdog was not configured
if the phosphor-watchdog daemon restarts for any reason.

Change-Id: Iae3a8554c2f5d1cb89368f3ce14b3d44922599c0
Signed-off-by: William A. Kennington III <wak@google.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/app/watchdog.cpp b/app/watchdog.cpp
index d537683..f28ff80 100644
--- a/app/watchdog.cpp
+++ b/app/watchdog.cpp
@@ -28,6 +28,13 @@ ipmi_ret_t ipmi_app_watchdog_reset(
         WatchdogService wd_service;
         WatchdogService::Properties wd_prop = wd_service.getProperties();
 
+        // Notify the caller if we haven't initialized our timer yet
+        // so it can configure actions and timeouts
+        if (!wd_prop.initialized)
+        {
+            return IPMI_WDOG_CC_NOT_INIT;
+        }
+
         // Reset the countdown to make sure we don't expire our timer
         wd_service.setTimeRemaining(wd_prop.interval);
 
@@ -114,6 +121,9 @@ ipmi_ret_t ipmi_app_watchdog_set(
         wd_service.setInterval(interval);
         wd_service.setTimeRemaining(interval);
 
+        // Mark as initialized so that future resets behave correctly
+        wd_service.setInitialized(true);
+
         return IPMI_CC_OK;
     }
     catch (const std::domain_error &)