https://bugzilla.kernel.org/show_bug.cgi?id=95331 --- Comment #8 from Jason Vas Dias <jason.vas.dias@xxxxxxxxx> --- I think linux should provide a way of by-passing this generation of error events for writable FDs with no writers - blocking should be possible for writable pipe FDs for which the "wait for readers on write" fcntl or ioctl has been issued, which would only return success for writable pipe FDs with no readers (readers == 0) ; for such pipes, blocking reads would succeed once a SINGLE SIGPIPE or write() == -1 with errno==EPIPE event occurred until a reader has connected, upon which a SIGIO / SIGPOLL signal would be sent if the FD had such a handler registered for it with the siginfo si_band and si_fd fields correctly filled in; such a signal would also be sent and write() would return -1 ONCE for such FDs when the last reader disconnects, as currently happens . This would essentially fix the problem of having to know the name of the pipe in order to re-open it and be able to wait for readers to connect ; one could handle a write returning -1 with EPIPE or a SIGPIPE by simply entering pause() with a SIGIO handler registered, which is NOT currently the case. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
