Implement ResetTimeRemaining Method

A dbus method was recently added that supports performing the watchdog
reset and enable in a single action to reduce the amount of the dbus
congestion and improve reliability of watchdog resets. Support this
method as the build would be broken otherwise.

Change-Id: Iac00fc2cf15d4ba06fb67a98e2c29fc3c31b3272
Signed-off-by: William A. Kennington III <wak@google.com>

2 files changed, 16 insertions, 0 deletions

diff --git a/watchdog.cpp b/watchdog.cpp
index 2bfd9b7..5ba0836 100644
--- a/watchdog.cpp
+++ b/watchdog.cpp
@@ -14,6 +14,15 @@ constexpr auto SYSTEMD_SERVICE    = "org.freedesktop.systemd1";
 constexpr auto SYSTEMD_ROOT       = "/org/freedesktop/systemd1";
 constexpr auto SYSTEMD_INTERFACE  = "org.freedesktop.systemd1.Manager";
 
+void Watchdog::resetTimeRemaining(bool enableWatchdog)
+{
+    timeRemaining(interval());
+    if (enableWatchdog)
+    {
+        enabled(true);
+    }
+}
+
 // Enable or disable watchdog
 bool Watchdog::enabled(bool value)
 {
diff --git a/watchdog.hpp b/watchdog.hpp
index 7603689..e28a751 100644
--- a/watchdog.hpp
+++ b/watchdog.hpp
@@ -66,6 +66,13 @@ class Watchdog : public WatchdogInherits
             tryFallbackOrDisable();
         }
 
+        /** @brief Resets the TimeRemaining to the configured Interval
+         *         Optionally enables the watchdog.
+         *
+         *  @param[in] enableWatchdog - Should the call enable the watchdog
+         */
+        void resetTimeRemaining(bool enableWatchdog) override;
+
         /** @brief Since we are overriding the setter-enabled but not the
          *         getter-enabled, we need to have this using in order to
          *         allow passthrough usage of the getter-enabled.