event/SocketMonitor: wake up the event loop after flag change

src/event/SocketMonitor.cxx

@@ -159,3 +159,9 @@ SocketMonitor::Write(const void *data, size_t length)
 
 	return send(Get(), (const char *)data, length, flags);
 }
+
+void
+SocketMonitor::CommitEventFlags()
+{
+	loop.WakeUp();
+}

src/event/SocketMonitor.hxx

@@ -89,26 +89,32 @@ public:
 	void Schedule(unsigned flags) {
 		poll.events = flags;
 		poll.revents &= flags;
+		CommitEventFlags();
 	}
 
 	void Cancel() {
 		poll.events = 0;
+		CommitEventFlags();
 	}
 
 	void ScheduleRead() {
 		poll.events |= READ|HANGUP|ERROR;
+		CommitEventFlags();
 	}
 
 	void ScheduleWrite() {
 		poll.events |= WRITE;
+		CommitEventFlags();
 	}
 
 	void CancelRead() {
 		poll.events &= ~(READ|HANGUP|ERROR);
+		CommitEventFlags();
 	}
 
 	void CancelWrite() {
 		poll.events &= ~WRITE;
+		CommitEventFlags();
 	}
 
 	ssize_t Read(void *data, size_t length);
@@ -128,6 +134,8 @@ public:
 				 gpointer user_data);
 
 private:
+	void CommitEventFlags();
+
 	bool Check() const {
 		return (poll.revents & poll.events) != 0;
 	}