BrokenPipe is now considered as a disconnection.

src/context.zig

@@ -505,7 +505,7 @@ pub const Context = struct {
                         error.BrokenPipe => {
                             log.warn("cannot send message, dest probably closed the connection ({})", .{err});
                             try self.close(i);
-                            return Event.init(Event.Type.ERROR, i, fd.fd, null);
+                            return Event.init(Event.Type.DISCONNECTION, i, fd.fd, null);
                         },
                         else => {
                             log.warn("unmanaged error while sending a message ({})", .{err});