1 if [ -z "${__stopwatch_sh_loaded}" ]
3 __stopwatch_sh_loaded=yes
5 __stopwatch_sh_VERSION="Stopwatch v0.1"
6 __stopwatch_sh_DESCRIPTION="Stopwatch implementation supporting multiple tagged timers"
7 __stopwatch_sh_COPYRIGHT=$( cat <<"END_OF_COPYRIGHT"
9 Copyright (c) 2000-2012, CyberLeo
12 Redistribution and use in source and binary forms, with or without
13 modification, are permitted provided that the following conditions are met:
15 * Redistributions of the source code must retain the above copyright
16 notice, this list of conditions, and the following disclaimer.
17 * Redistributions in binary form must reproduce the above copyright
18 notice, this list of conditions, and the following disclaimer in the
19 documentation and/or other materials provided with the distribution.
20 * Neither the name of the organization nor the names of its contributors
21 may be used to endorse or promote products derived from this software
22 without specific prior written permission.
24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
30 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 HOWEVER CAUSED AND ON ANY THEORY OF LIABILTY, WHETHER IN CONTRACT, STRICT
32 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
33 OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 kvs="$(mktemp -t ".stopwatch.XXXXXXXX")"
40 trap "rm -f '${kvs}'; exit" exit hup int term kill
46 ${__stopwatch_sh_VERSION}
47 ${__stopwatch_sh_DESCRIPTION}
49 ${__stopwatch_sh_COPYRIGHT}
51 Usage: stopwatch <tag> <start|lap|stop|reset>
53 Simple bourne shell based stopwatch
54 Requires 'kvs' and the id 'stopwatch' therein
55 so make sure you set 'kvs' before sourcing this script if necessary.
57 After loading, the following commands are available:
62 'Lap' a stopwatch (emit timer value without stopping)
65 Stop a stopwatch; can be resumed later with 'start'
68 Reset a stopwatch back to zero
71 Internal functions available:
73 stopwatch_humany_duration <usec>
74 Transform an integer number of microseconds into a human-readable string
75 (Ex: 3d14h10m3.223s or 7m10.013s )
84 echo $(( $(date +%s%N) / 1000 ))
89 "${_root}/lib/sh/usec" || echo $(( $(date +%s) * 1000000 ))
93 echo "Unsupported platform: $(uname -s)" >&2
98 # Try and format a passed integer number of seconds into something more
99 # easily parseable by a human (like 6m10s or something)
100 stopwatch_humany_duration() {
101 local usec secs mins hurs days
102 [ "${1}" -a "$(echo "${1}" | tr -Cd '0-9')" = "${1}" ] || return 255
103 usec=$(( ${1} % 1000000 ))
104 secs=$(( ${1} / 1000000 ))
107 [ "${secs}" -lt 60 ] || {
108 mins=$(( ${secs} / 60 ))
109 secs=$(( ${secs} % 60 ))
111 [ "${mins}" -lt 60 ] || {
112 hurs=$(( ${mins} / 60 ))
113 mins=$(( ${mins} % 60 ))
115 [ "${mins}" -gt 0 ] || mins=""
116 [ "${hurs}" -lt 24 ] || {
117 days=$(( ${hurs} / 24 ))
118 hurs=$(( ${hurs} % 24 ))
120 [ "${hurs}" -gt 0 ] || hurs=""
122 printf "%s%s%s%s.%03ds" "${days:+${days}d}" "${hurs:+${hurs}h}" "${mins:+${mins}m}" "${secs}" "$(( ${usec} / 1000 ))"
125 # Start a named stopwatch, but do nothing if the named stopwatch is already
128 name="${1:-stopwatch}"
129 [ "${nao}" ] || nao="$(_stopwatch_usec)"
130 # Is the stopwatch running?
131 if kvs_has_key stopwatch "${name}"
133 printf "Stopwatch: '%s' is already running.\n" "${name}"
135 # start the stopwatch
136 accum="$(kvs_get stopwatch "${name}_accumulator")"
137 kvs_set stopwatch "${name}" "${nao}"
138 [ "${accum}" ] && restart="$(printf " at %s" "$(stopwatch_humany_duration "${accum}")")"
139 printf "Stopwatch: '%s' starts%s.\n" "${name}" "${restart}"
143 # 'Lap' the named stopwatch: print out a line indicating how long the named
144 # stopwatch has been running, but do not stop nor reset the stopwatch.
146 name="${1:-stopwatch}"
147 [ "${nao}" ] || nao="$(_stopwatch_usec)"
148 # Is the stopwatch running?
149 if kvs_has_key stopwatch "${name}"
151 # emit a line indicating how long it has been running
152 start="$(kvs_get stopwatch "${name}")"
153 accum="$(kvs_get stopwatch "${name}_accumulator")"
154 delta="$(( ${nao} - ${start} ))"
155 [ "${accum}" ] && delta="$(( ${delta} + ${accum} ))"
156 printf "Stopwatch: '%s' is running: %s.\n" "${name}" "$(stopwatch_humany_duration "${delta}")"
158 accum="$(kvs_get stopwatch "${name}_accumulator")"
159 [ "${accum}" ] && printf "Stopwatch: '%s' is stopped: %s.\n" "${name}" "$(stopwatch_humany_duration "${accum}")"
163 # Stop the named stopwatch and print out a line indicating how long it had
164 # been running up until that point; do not reset the stopwatch.
166 name="${1:-stopwatch}"
167 [ "${nao}" ] || nao="$(_stopwatch_usec)"
168 if kvs_has_key stopwatch "${name}"
170 start="$(kvs_get stopwatch "${name}")"
171 accum="$(kvs_get stopwatch "${name}_accumulator")"
172 delta="$(( ${nao} - ${start} ))"
173 [ "${accum}" ] && delta="$(( ${delta} + ${accum} ))"
174 kvs_set stopwatch "${name}_accumulator" "${delta}"
175 kvs_unset stopwatch "${name}"
176 printf "Stopwatch: '%s' stops at %s.\n" "${name}" "$(stopwatch_humany_duration "${delta}")"
178 accum="$(kvs_get stopwatch "${name}_accumulator")"
179 [ "${accum}" ] && printf "Stopwatch: '%s' is stopped at %s.\n" "${name}" "$(stopwatch_humany_duration "${accum}")"
183 # Reset the named stopwatch back to zero.
185 name="${1:-stopwatch}"
186 [ "${nao}" ] || nao="$(_stopwatch_usec)"
187 kvs_unset stopwatch "${name}"
188 kvs_unset stopwatch "${name}_accumulator"
189 printf "Stopwatch: '%s' is reset to 0s.\n" "${name}"
193 [ "${1}" -a "${2}" ] || stopwatch_help;
194 nao="$(_stopwatch_usec)"
196 [Ss][Tt][Aa][Rr][Tt]) stopwatch_start "${1}" ;;
197 [Ll][Aa][Pp]) stopwatch_lap "${1}" ;;
198 [Ss][Tt][Oo][Pp]) stopwatch_stop "${1}" ;;
199 [Rr][Ee][Ss][Ee][Tt]) stopwatch_reset "${1}" ;;