init: Allows shutting down cleanly.
When ro.build.shutdown_timeout is set, init will send a SIGTERM signal to
all services on reboot. The normal shutdown process will continue once
all services have exited or after the shutdown timeout
(ro.build.shutdown_timeout).
If ro.build.shutdown_timeout is not set, we assume a 0s timeout.
Bug: 26216447
Test: manual: Ask to reboot. All services exit cleanly.
Change-Id: If921f6e8d87211e500ac9fa86f3e1eabe02d18cf
diff --git a/init/service.h b/init/service.h
index 10eb736..35abde9 100644
--- a/init/service.h
+++ b/init/service.h
@@ -82,6 +82,7 @@
bool Enable();
void Reset();
void Stop();
+ void Terminate();
void Restart();
void RestartIfNeeded(time_t& process_needs_restart);
bool Reap();
@@ -167,17 +168,22 @@
Service* FindServiceByName(const std::string& name) const;
Service* FindServiceByPid(pid_t pid) const;
Service* FindServiceByKeychord(int keychord_id) const;
- void ForEachService(void (*func)(Service* svc)) const;
+ void ForEachService(std::function<void(Service*)> callback) const;
void ForEachServiceInClass(const std::string& classname,
void (*func)(Service* svc)) const;
void ForEachServiceWithFlags(unsigned matchflags,
void (*func)(Service* svc)) const;
+ void ReapAnyOutstandingChildren();
void RemoveService(const Service& svc);
void DumpState() const;
private:
ServiceManager();
+ // Cleans up a child process that exited.
+ // Returns true iff a children was cleaned up.
+ bool ReapOneProcess();
+
static int exec_count_; // Every service needs a unique name.
std::vector<std::unique_ptr<Service>> services_;
};