linux-scalability-benchmarks / libowfat / io / io_dontwantread.3

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.TH io_dontwantread 3
io_dontwantread \- signal that you do not want to read from a descriptor
.B #include <io.h>

void \fBio_dontwantread\fP(int64 fd);
io_dontwantread tells the next io_wait() that you don't want to read
from this descriptor for now.  Call io_wantread() again if you change
your mind.

You have to have called io_fd on the descriptor first (io_pipe and
io_socketpair do this for you).  Waiting on descriptors only works for
sockets, fifos and pipes.  It may also work on devices and TTYs, but
that is platform dependent -- you should not rely on that.
io_wait(3), io_canread(3), io_wantread(3), io_fd(3)