libcosmos/io_2types_8hxx_source.html

#pragma once


// Linux

#include <poll.h>


// cosmos

#include "cosmos/BitMask.hxx"


namespace cosmos {


enum class PollEvent : short {

        INPUT       = POLLIN,

        PRIORITY    = POLLPRI,

        OUTPUT      = POLLOUT,

        READ_HANGUP = POLLRDHUP,

        ERROR       = POLLERR,

        HANGUP      = POLLHUP,

        INVALID     = POLLNVAL,

        WRBAND      = POLLWRBAND,

};


using PollEvents = BitMask<PollEvent>;


} // end ns

cosmos::BitMask< PollEvent >

cosmos::PollEvent
PollEvent
Bitmask values used in the poll(2) API to describe I/O status.
Definition types.hxx:22

cosmos::PollEvent::OUTPUT
@ OUTPUT
writing is possible.

cosmos::PollEvent::READ_HANGUP
@ READ_HANGUP
stream socket peer closed connection, or shut down the writing half of its connection.

cosmos::PollEvent::WRBAND
@ WRBAND
priority data may be written.

cosmos::PollEvent::INPUT
@ INPUT
there is data to read.

cosmos::PollEvent::ERROR
@ ERROR
an error condition exists (also occurs on the write end of a pipe, when the read end has been closed)...

cosmos::PollEvent::PRIORITY
@ PRIORITY
an exceptional condition exists: out-of-band data on TCP socket, PTY master has seen a state change o...