#!/bin/bash

# This file is part of util-linux.
#
# This file 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 2 of the License, or
# (at your option) any later version.
#
# This file 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.

TS_TOPDIR="${0%/*}/../.."
TS_DESC="print_pid"

. "$TS_TOPDIR/functions.sh"
ts_init "$*"

ts_check_test_command "$TS_CMD_KILL"
ts_check_test_command "$TS_HELPER_SIGRECEIVE"

all_ok=true

HELPER_SYMLINK="$TS_OUTDIR/$(mktemp -u XXXXXXXXXXXXXXX)"
ln -s "$TS_HELPER_SIGRECEIVE" "$HELPER_SYMLINK"
trap "rm -f $HELPER_SYMLINK" 0

"$HELPER_SYMLINK" >> "$TS_OUTPUT" 2>&1 &
TEST_PID=$!
# test_sigreceive needs time to start up
up=0
for i in 0.01 0.1 1 1 1 1; do
	awk 'BEGIN { retval=1 }
	$1 ~ /^SigCgt/ {
		lbyte = strtonum("0x" substr($2, 16, 16))
		if (and(lbyte, 1)) {
			retval=0
		}
	} END {
		exit retval
	}' /proc/$TEST_PID/status &&
		up=1 &&
		break
	sleep $i
done
KILL_PID=$("$TS_CMD_KILL" -p ${HELPER_SYMLINK##*/} 2>> "$TS_OUTPUT" 2>&1)
if [ $? -ne 0 ]; then
	echo "kill -p did not work" >> "$TS_OUTPUT"
	all_ok=false
fi
if [ "x$TEST_PID" != "x$KILL_PID" ]; then
	echo "jobs -p $TEST_PID != kill -p $KILL_PID" >> "$TS_OUTPUT"
	all_ok=false
else
	"$TS_CMD_KILL" -1 $TEST_PID
	wait $TEST_PID
	if [ $? -ne 1 ]; then
		echo "wait $TEST_PID returned ${?}" >> "$TS_OUTPUT"
		all_ok=false
	fi
fi

if $all_ok; then
	echo 'all ok' >> "$TS_OUTPUT"
fi

ts_finalize