102 lines
2.5 KiB
Text
102 lines
2.5 KiB
Text
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
# specvar -- test some of the dynamic variables
|
|
|
|
# BASHPID
|
|
pid=$$
|
|
bpid=$BASHPID
|
|
subpid=$( (echo $BASHPID) )
|
|
|
|
if [ "$bpid" -ne "$subpid" ]; then echo BASHPID ok; fi
|
|
|
|
# BASH_ARGV0
|
|
|
|
BASH_ARGV0=hello
|
|
case $0 in
|
|
hello) echo BASH_ARGV0 ok ;;
|
|
*) echo "BASH_ARGV0 mismatch: $BASH_ARGV0 ($0)" >&2 ;;
|
|
esac
|
|
|
|
setarg0()
|
|
{
|
|
BASH_ARGV0="$1"
|
|
}
|
|
|
|
setarg0 arg0
|
|
case $0 in
|
|
arg0) echo BASH_ARGV0 ok ;;
|
|
*) echo "BASH_ARGV0 mismatch: $BASH_ARGV0 ($0)" >&2 ;;
|
|
esac
|
|
|
|
# SECONDS
|
|
before=$SECONDS
|
|
sleep 2
|
|
after=$SECONDS
|
|
|
|
if (( $after > $before )); then echo SECONDS ok; fi
|
|
unset before after
|
|
|
|
# EPOCHSECONDS
|
|
|
|
# not exact, but should work
|
|
# date +%s should be portable enough now
|
|
# then try gawk, perl, python in that order
|
|
now1=$(date +%s 2>/dev/null) D=date
|
|
[ -z "$now1" ] &&
|
|
{
|
|
now1=$(gawk 'BEGIN { print systime(); }' 2>/dev/null) D=gawk
|
|
[ -z "$now1" ] && now1=$(perl -e 'print time' 2>/dev/null) D=perl
|
|
[ -z "$now1" ] && now1=$(python -c 'import time; ts = int(time.time()); print(ts)' 2>/dev/null) D=python
|
|
}
|
|
now2=$EPOCHSECONDS
|
|
|
|
# use a window of +-1 second
|
|
offset=1
|
|
if [[ -z $now1 ]]; then
|
|
echo "cannot get current time using date/gawk/perl/python" >&2
|
|
elif (( $now1 - $offset <= $now2 && $now2 <= $now1 + $offset )); then
|
|
echo EPOCHSECONDS ok
|
|
else
|
|
echo "current time via $D and EPOCHSECONDS possible mismatch|$now1|$now2|offset=$offset" >&2
|
|
fi
|
|
unset now1 now2 D
|
|
|
|
LC_ALL=C # force decimal point to `.'
|
|
now1=$EPOCHREALTIME
|
|
now2=$EPOCHREALTIME
|
|
sec1=${now1%%.*}
|
|
sec2=${now2%%.*}
|
|
|
|
msec1=${now1##*.}
|
|
msec2=${now2##*.}
|
|
# cut off leading zeros
|
|
shopt -s extglob
|
|
msec1=${msec1##*(0)}
|
|
msec2=${msec2##*(0)}
|
|
|
|
dsec=$(( $sec2 - $sec1 ))
|
|
dmsec=$(( $msec2 - $msec1 ))
|
|
if (( $dmsec < 0 )); then
|
|
dmsec=$(( dmsec + 1000000 ))
|
|
dsec=$(( desc - 1 ))
|
|
fi
|
|
|
|
# not a real test, but ok for a start
|
|
if (( $dmsec < 1000000 )); then echo EPOCHREALTIME ok; fi
|
|
|
|
${THIS_SH} -c 'echo $BASH_COMMAND'
|
|
|
|
# FUNCNAME tested in func.tests
|
|
# RANDOM tested in varenv.sh
|
|
# LINENO tested in dbg-support
|