commit 156ecf31bb849a9f4733c1115d330cb911baabcd
author Potin Lai <potin.lai@quantatw.com> Mon Jul 11 17:09:10 2022 +0800
committer Potin Lai <potin.lai@quantatw.com> Wed Jul 13 08:43:44 2022 +0800
tree d4936d3e9c1d89d5a3dac6c204b078a280771f15
parent 7fc0aa1e3d932b2eca20eb8e5eade71267236d59

healthMonitor: call configured unit when threshold exceeded

Add threshold target implementation.
Call the system target unit configured in config file when threshold
value exceeded.

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I31f0cf4df0c913f10c47ecb9fa24b59b7b9de0e5

healthMonitor.cpp

diff --git a/healthMonitor.cpp b/healthMonitor.cpp
index c87e4f0..3523b79 100644
--- a/healthMonitor.cpp
+++ b/healthMonitor.cpp
@@ -322,9 +322,12 @@
         {
             CriticalInterface::criticalAlarmHigh(true);
             if (sensorConfig.criticalLog)
+            {
                 error(
                     "ASSERT: sensor {SENSOR} is above the upper threshold critical high",
                     "SENSOR", sensorConfig.name);
+                startUnit(sensorConfig.criticalTgt);
+            }
         }
         return;
     }
@@ -345,9 +348,12 @@
         {
             WarningInterface::warningAlarmHigh(true);
             if (sensorConfig.warningLog)
+            {
                 error(
                     "ASSERT: sensor {SENSOR} is above the upper threshold warning high",
                     "SENSOR", sensorConfig.name);
+                startUnit(sensorConfig.warningTgt);
+            }
         }
         return;
     }
@@ -404,6 +410,20 @@
     checkSensorThreshold(avgValue);
 }
 
+void HealthSensor::startUnit(const std::string& sysdUnit)
+{
+    if (sysdUnit.empty())
+    {
+        return;
+    }
+
+    sdbusplus::message::message msg = bus.new_method_call(
+        "org.freedesktop.systemd1", "/org/freedesktop/systemd1",
+        "org.freedesktop.systemd1.Manager", "StartUnit");
+    msg.append(sysdUnit, "replace");
+    bus.call_noreply(msg);
+}
+
 void HealthMon::recreateSensors()
 {
     PHOSPHOR_LOG2_USING;

healthMonitor.hpp

diff --git a/healthMonitor.hpp b/healthMonitor.hpp
index d327cf0..b5013c8 100644
--- a/healthMonitor.hpp
+++ b/healthMonitor.hpp
@@ -125,6 +125,8 @@
     sdeventplus::utility::Timer<sdeventplus::ClockId::Monotonic> readTimer;
     /** @brief Read sensor at regular intrval */
     void readHealthSensor();
+    /** @brief Start configured threshold systemd unit */
+    void startUnit(const std::string& sysdUnit);
 };
 
 class HealthMon