io_dontwantwrite - signal that you do not want to write to a descriptor

       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.

       io_dontwantwrite - signal that you do not want to write to a descriptor

io_wait(3), io_canwrite(3), io_wantwrite(3), io_fd(3)

                                                                                             io_dontwantwrite(3)

#include<libowfat/io.h>

       void io_dontwantwrite(int64 fd);