#!/bin/sh

# Test select() on file descriptors opened for writing.

tmpfiles=""

trap 'rm -fr $tmpfiles' 1 2 3 15

tmpfiles="$tmpfiles t-select-out.out t-select-out.tmp"

# Regular files.

rm -f t-select-out.tmp

./test-select-fd${EXEEXT} w 1 t-select-out.tmp > t-select-out.out

test `cat t-select-out.tmp` = "1" || exit 1

# Pipes.

if false; then # This test fails on some platforms.

  rm -f t-select-out.tmp

  ( { echo abc; ./test-select-fd${EXEEXT} w 1 t-select-out.tmp; } | { sleep 1; cat; } ) > /dev/null

  test `cat t-select-out.tmp` = "0" || exit 1

fi

rm -f t-select-out.tmp

( { sleep 1; echo abc; ./test-select-fd${EXEEXT} w 1 t-select-out.tmp; } | cat) > /dev/null

test `cat t-select-out.tmp` = "1" || exit 1

# Special files.

rm -f t-select-out.tmp

./test-select-fd${EXEEXT} w 1 t-select-out.tmp > /dev/null

test `cat t-select-out.tmp` = "1" || exit 1

rm -fr $tmpfiles

exit 0