event/Loop: pass SocketEvent& to AbandonFD()

src/event/Loop.cxx

@@ -103,13 +103,14 @@ EventLoop::Break() noexcept
 }
 
 bool
-EventLoop::AbandonFD(int _fd)  noexcept
+EventLoop::AbandonFD(SocketEvent &event)  noexcept
 {
 #ifdef HAVE_THREADED_EVENT_LOOP
 	assert(!IsAlive() || IsInside());
 #endif
+	assert(event.IsDefined());
 
-	return poll_backend.Abandon(_fd);
+	return poll_backend.Abandon(event.GetSocket().Get());
 }
 
 bool

src/event/Loop.hxx

@@ -196,7 +196,7 @@ public:
 	 * has been closed.  This is like RemoveFD(), but does not
 	 * attempt to use #EPOLL_CTL_DEL.
 	 */
-	bool AbandonFD(int fd) noexcept;
+	bool AbandonFD(SocketEvent &event) noexcept;
 
 	void AddIdle(IdleEvent &i) noexcept;
 

src/event/SocketEvent.cxx

@@ -44,7 +44,7 @@ SocketEvent::Close() noexcept
 		return;
 
 	if (std::exchange(scheduled_flags, 0) != 0)
-		loop.AbandonFD(fd.Get());
+		loop.AbandonFD(*this);
 	fd.Close();
 }
 
@@ -52,7 +52,7 @@ void
 SocketEvent::Abandon() noexcept
 {
 	if (std::exchange(scheduled_flags, 0) != 0)
-		loop.AbandonFD(fd.Get());
+		loop.AbandonFD(*this);
 
 	fd = SocketDescriptor::Undefined();
 }