Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
build: Add timeout to wrapper for execution on FPGA.
- Loading branch information
Showing
3 changed files
with
96 additions
and
8 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,4 +1,4 @@ | ||
#! /bin/sh | ||
#! /bin/bash | ||
|
||
jtag <<EOF | ||
bsdl path /usr/share/urjtag/bsdl/ | ||
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,17 +1,14 @@ | ||
#! /bin/sh | ||
#! /bin/bash | ||
|
||
cat $2 > $1 & | ||
|
||
if [ "$3" = "RAW" ]; then | ||
# raw output | ||
cat $1 | ||
cat $1 | ||
else | ||
# filtered output | ||
awk 'BEGIN { boot = 0 } | ||
# filtered output with timeout | ||
`dirname $0`/timeout3 -t 60 awk 'BEGIN { boot = 0 } | ||
/^BOOT$/ { boot = 1; next } | ||
/^EXIT [0-9a-fA-F]+$/ { exit strtonum("0x"$2) } | ||
{ if (boot) print }' < $1 | ||
exit $? | ||
fi | ||
|
||
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,91 @@ | ||
#! /bin/bash | ||
# | ||
# The Bash shell script executes a command with a time-out. | ||
# Upon time-out expiration SIGTERM (15) is sent to the process. If the signal | ||
# is blocked, then the subsequent SIGKILL (9) terminates it. | ||
# | ||
# Based on the Bash documentation example. | ||
|
||
# Hello Chet, | ||
# please find attached a "little easier" :-) to comprehend | ||
# time-out example. If you find it suitable, feel free to include | ||
# anywhere: the very same logic as in the original examples/scripts, a | ||
# little more transparent implementation to my taste. | ||
# | ||
# Dmitry V Golovashkin <Dmitry.Golovashkin@sas.com> | ||
|
||
scriptName="${0##*/}" | ||
|
||
declare -i DEFAULT_TIMEOUT=9 | ||
declare -i DEFAULT_INTERVAL=1 | ||
declare -i DEFAULT_DELAY=1 | ||
|
||
# Timeout. | ||
declare -i timeout=DEFAULT_TIMEOUT | ||
# Interval between checks if the process is still alive. | ||
declare -i interval=DEFAULT_INTERVAL | ||
# Delay between posting the SIGTERM signal and destroying the process by SIGKILL. | ||
declare -i delay=DEFAULT_DELAY | ||
|
||
function printUsage() { | ||
cat <<EOF | ||
Synopsis | ||
$scriptName [-t timeout] [-i interval] [-d delay] command | ||
Execute a command with a time-out. | ||
Upon time-out expiration SIGTERM (15) is sent to the process. If SIGTERM | ||
signal is blocked, then the subsequent SIGKILL (9) terminates it. | ||
-t timeout | ||
Number of seconds to wait for command completion. | ||
Default value: $DEFAULT_TIMEOUT seconds. | ||
-i interval | ||
Interval between checks if the process is still alive. | ||
Positive integer, default value: $DEFAULT_INTERVAL seconds. | ||
-d delay | ||
Delay between posting the SIGTERM signal and destroying the | ||
process by SIGKILL. Default value: $DEFAULT_DELAY seconds. | ||
As of today, Bash does not support floating point arithmetic (sleep does), | ||
therefore all delay/time values must be integers. | ||
EOF | ||
} | ||
|
||
# Options. | ||
while getopts ":t:i:d:" option; do | ||
case "$option" in | ||
t) timeout=$OPTARG ;; | ||
i) interval=$OPTARG ;; | ||
d) delay=$OPTARG ;; | ||
*) printUsage; exit 1 ;; | ||
esac | ||
done | ||
shift $((OPTIND - 1)) | ||
|
||
# $# should be at least 1 (the command to execute), however it may be strictly | ||
# greater than 1 if the command itself has options. | ||
if (($# == 0 || interval <= 0)); then | ||
printUsage | ||
exit 1 | ||
fi | ||
|
||
# kill -0 pid Exit code indicates if a signal may be sent to $pid process. | ||
( | ||
((t = timeout)) | ||
|
||
while ((t > 0)); do | ||
sleep $interval | ||
kill -0 $$ || exit 0 | ||
((t -= interval)) | ||
done | ||
|
||
# Be nice, post SIGTERM first. | ||
# The 'exit 0' below will be executed if any preceeding command fails. | ||
kill -s SIGTERM $$ && kill -0 $$ || exit 0 | ||
sleep $delay | ||
kill -s SIGKILL $$ | ||
) 2> /dev/null & | ||
|
||
exec "$@" |