event/SocketMonitor: Schedule() returns bool

1 files changed, 9 insertions, 5 deletions

diff --git a/src/event/SocketMonitor.hxx b/src/event/SocketMonitor.hxx
index df80ced04..1d8814cc5 100644
--- a/src/event/SocketMonitor.hxx
+++ b/src/event/SocketMonitor.hxx
@@ -98,18 +98,22 @@ public:
 		return scheduled_flags;
 	}
 
-	void Schedule(unsigned flags) noexcept;
+	/**
+	 * @return true on success, false on error (with errno set if
+	 * USE_EPOLL is defined)
+	 */
+	bool Schedule(unsigned flags) noexcept;
 
 	void Cancel() noexcept {
 		Schedule(0);
 	}
 
-	void ScheduleRead() noexcept {
-		Schedule(GetScheduledFlags() | READ | HANGUP | ERROR);
+	bool ScheduleRead() noexcept {
+		return Schedule(GetScheduledFlags() | READ | HANGUP | ERROR);
 	}
 
-	void ScheduleWrite() noexcept {
-		Schedule(GetScheduledFlags() | WRITE);
+	bool ScheduleWrite() noexcept {
+		return Schedule(GetScheduledFlags() | WRITE);
 	}
 
 	void CancelRead() noexcept {