Hi! My program is repeatedly toggling an io watcher from R to RW mode and back. This may happen multiple times per one event loop iteration. This toggling behavior is caused because of me attempting to buffer a few data items before flush but certain conditions may force an early flush. Before blocking the remaining data is flushed, at least partially (in ev_prepare).
Since exchanged data items are quite small I assume flush will succeed and there would seldom be a need to watch the underlying file descriptor to become ready for write, i.e. the io watcher mode switching pattern bounded by the single event loop iteration is R-(RW-R)*-RW-R. Please tell me if this 'redundant' mode switching comes with a cost? _______________________________________________ libev mailing list libev@lists.schmorp.de http://lists.schmorp.de/cgi-bin/mailman/listinfo/libev
