36 lines
770 B
Bash
Executable file
36 lines
770 B
Bash
Executable file
#! /bin/sh
|
|
#
|
|
# psize.sh -- determine this system's pipe size, and write a define to
|
|
# pipesize.h so ulimit.c can use it.
|
|
|
|
TMPDIR=/tmp
|
|
TMPNAME=pipsize.$$
|
|
TMPFILE=$TMPDIR/$TMPNAME
|
|
|
|
trap 'rm -f $TMPFILE' 0 1 2 3 6 15
|
|
|
|
echo "/*"
|
|
echo " * pipesize.h"
|
|
echo " *"
|
|
echo " * This file is automatically generated by psize.sh"
|
|
echo " * Do not edit!"
|
|
echo " */"
|
|
echo ""
|
|
|
|
#
|
|
# Try to avoid tempfile races. We can't really check for the file's
|
|
# existance before we run psize.aux, because `test -e' is not portable,
|
|
# `test -h' (test for symlinks) is not portable, and `test -f' only
|
|
# checks for regular files
|
|
#
|
|
rm -f $TMPFILE
|
|
|
|
./psize.aux 2>$TMPFILE | sleep 3
|
|
|
|
if [ -s $TMPFILE ]; then
|
|
echo "#define PIPESIZE `cat $TMPFILE`"
|
|
else
|
|
echo "#define PIPESIZE 512"
|
|
fi
|
|
|
|
exit 0
|