commit 5d4d6f72695d532ee138d8a412dd13a7ea9a0025
author Wei Wang <wvw@google.com> Tue Jun 27 22:08:45 2017 -0700
committer Wei Wang <wvw@google.com> Thu Jul 06 02:30:14 2017 +0000
tree 20adb2365e0e7cc32bda24b895eedfe1c15af5aa
parent f499bcdde70772368d5817d342242cf8bd8743ca

init: Support custom shutdown actions

We have been seeing panics and errors during shutdown sequence in
some vendor's platform, and it is required to disable error handling
during shutdown.

This CL separates the shutdown request to execute another "shutdown"
trigger at the beginning of shutdown stage. And vendor can use this
trigger to add custom commands needed for shutting down gracefully.

Bug: 38203024
Bug: 62084631
Test: device reboot/shutdown
Change-Id: I3fac4ed59f06667d86e477ee55ed391cf113717f
(cherry picked from commit eeab491efd8f456324f88e444f228b1016712e45)

init/service.h

diff --git a/init/service.h b/init/service.h
index b9c270a..4505131 100644
--- a/init/service.h
+++ b/init/service.h
@@ -89,6 +89,7 @@
     void DumpState() const;
     void SetShutdownCritical() { flags_ |= SVC_SHUTDOWN_CRITICAL; }
     bool IsShutdownCritical() const { return (flags_ & SVC_SHUTDOWN_CRITICAL) != 0; }
+    void UnSetExec() { flags_ &= ~SVC_EXEC; }
 
     const std::string& name() const { return name_; }
     const std::set<std::string>& classnames() const { return classnames_; }
@@ -186,7 +187,7 @@
 };
 
 class ServiceManager {
-public:
+  public:
     static ServiceManager& GetInstance();
 
     // Exposed for testing
@@ -208,8 +209,9 @@
     void ReapAnyOutstandingChildren();
     void RemoveService(const Service& svc);
     void DumpState() const;
+    void ClearExecWait();
 
-private:
+  private:
     // Cleans up a child process that exited.
     // Returns true iff a children was cleaned up.
     bool ReapOneProcess();