#!/bin/sh
# Test select() on file descriptors opened for writing.

setglobal tmpfiles = ''""
trap 'rm -fr $tmpfiles' 1 2 3 15

setglobal 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 { # This test fails on some platforms.
  rm -f t-select-out.tmp
  shell { do { echo abc; ./test-select-fd$(EXEEXT) w 1 t-select-out.tmp; } | do { sleep 1; cat; } } > /dev/null
  test $[cat t-select-out.tmp] = "0" || exit 1
}

rm -f t-select-out.tmp
shell { do { 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