X-Git-Url: http://plrg.eecs.uci.edu/git/?p=folly.git;a=blobdiff_plain;f=folly%2Fio%2Fasync%2FAsyncSignalHandler.h;h=056655337cb7accbc3dd7adf0e34f9fc188ee5e6;hp=f4b6bdf6b606b511adfc0920c4ccaca131369b9d;hb=dc1c3dcc04baa70029d16351d4424af4a7ef4385;hpb=46c5dbce6c04234ae0185d3fadb62556c7e7625b

diff --git a/folly/io/async/AsyncSignalHandler.h b/folly/io/async/AsyncSignalHandler.h
index f4b6bdf6..05665533 100644
--- a/folly/io/async/AsyncSignalHandler.h
+++ b/folly/io/async/AsyncSignalHandler.h
@@ -48,6 +48,30 @@ class AsyncSignalHandler {
   explicit AsyncSignalHandler(EventBase* eventBase);
   virtual ~AsyncSignalHandler();
 
+  /**
+   * Attach this AsyncSignalHandler to an EventBase.
+   *
+   * This should only be called if the AsyncSignalHandler is not currently
+   * registered for any signals and is not currently attached to an existing
+   * EventBase.
+   */
+  void attachEventBase(EventBase* eventBase);
+
+  /**
+   * Detach this AsyncSignalHandler from its EventBase.
+   *
+   * This should only be called if the AsyncSignalHandler is not currently
+   * registered for any signals.
+   */
+  void detachEventBase();
+
+  /**
+   * Get the EventBase used by this AsyncSignalHandler.
+   */
+  EventBase* getEventBase() const {
+    return eventBase_;
+  }
+
   /**
    * Register to receive callbacks about the specified signal.
    *
@@ -86,7 +110,7 @@ class AsyncSignalHandler {
 
   static void libeventCallback(libevent_fd_t signum, short events, void* arg);
 
-  EventBase* eventBase_;
+  EventBase* eventBase_{nullptr};
   SignalEventMap signalEvents_;
 };