io_dontwantwrite(3) Library Functions Manual io_dontwantwrite(3)NAME
io_dontwantwrite - signal that you do not want to write to a descriptor
SYNTAX
#include <io.h>
void io_dontwantwrite(int64 fd);
DESCRIPTION
io_dontwantwrite tells the next io_wait() that you don't want to write to this descriptor for now. Call io_wantwrite() 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.
SEE ALSO io_wait(3), io_canwrite(3), io_wantwrite(3), io_fd(3)io_dontwantwrite(3)
Check Out this Related Man Page
io_wait(3) Library Functions Manual io_wait(3)NAME
io_wait - wait for events
SYNTAX
#include <io.h>
void io_wait();
DESCRIPTION
io_wait() checks the descriptors that the program is interested in to see whether any of them are ready. If none of them are ready,
io_wait() tries to pause until one of them is ready, so that it does not take time away from other programs running on the same computer.
io_wait pays attention to timeouts: if a descriptor reaches its timeout, and the program is interested in reading or writing that descrip-
tor, io_wait will return promptly.
Under some circumstances, io_wait will return even though no interesting descriptors are ready. Do not assume that a descriptor is ready
merely because io_wait has returned.
io_wait is not interrupted by the delivery of a signal. Programs that expect interruption are unreliable: they will block if the same sig-
nal is delivered a moment before io_wait. The correct way to handle signals is with the self-pipe trick.
SEE ALSO io_waituntil(3), io_check(3), io_wantread(3), io_wantwrite(3), io_fd(3)io_wait(3)
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vi availabe with RHEL 5.4
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