logpersist: incorporate size and buffer tunables
- Add hidden -n and -b flags that propagate to the underlying logcat command. Publish aliases in help as --size and --buffer. - Add --clear for start command so it clears before starting - shell script bloating up to deal with option validation and provide ERROR: and WARNING: advice. ToDo: - Deprecate shell script and replace with Eng and Userdebug only Developer Options, before it becomes too powerful or bloated to force us to rewrite an expendable like this into C++. Bug: 28120456 Bug: 28788401 Change-Id: I0dff8acaa1e5c929454760cfa2801924956bc25d
This commit is contained in:
Mark Salyzyn
parent
aa3a56539d
commit
515f091f5e
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@ -2,10 +2,10 @@ on property:persist.logd.logpersistd=logcatd
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# all exec/services are called with umask(077), so no gain beyond 0700
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mkdir /data/misc/logd 0700 logd log
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# logd for write to /data/misc/logd, log group for read from pstore (-L)
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exec - logd log -- /system/bin/logcat -L -b all -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n 256
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exec - logd log -- /system/bin/logcat -L -b ${persist.logd.logpersistd.buffer:-all} -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n ${persist.logd.logpersistd.size:-256}
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start logcatd
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service logcatd /system/bin/logcat -b all -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n 256
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service logcatd /system/bin/logcat -b ${persist.logd.logpersistd.buffer:-all} -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n ${persist.logd.logpersistd.size:-256}
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class late_start
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disabled
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# logd for write to /data/misc/logd, log group for read from log daemon
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@ -1,5 +1,5 @@
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#! /system/bin/sh
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# logpersist cat start and stop handlers
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# logpersist cat, start and stop handlers
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progname="${0##*/}"
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case `getprop ro.build.type` in
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userdebug|eng) ;;
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@ -7,36 +7,134 @@ userdebug|eng) ;;
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exit 1
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;;
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esac
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data=/data/misc/logd
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property=persist.logd.logpersistd
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service=logcatd
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if [ X"${1}" = X"-h" -o X"${1}" = X"--help" ]; then
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echo "${progname%.*}.cat - dump current ${service%d} logs"
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echo "${progname%.*}.start - start ${service} service"
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echo "${progname%.*}.stop [--clear] - stop ${service} service"
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exit 0
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size_default=256
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buffer_default=all
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args="${@}"
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size=${size_default}
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buffer=${buffer_default}
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clear=false
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while [ ${#} -gt 0 ]; do
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case ${1} in
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-c|--clear) clear=true ;;
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--size=*) size="${1#--size=}" ;;
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--rotate-count=*) size="${1#--rotate-count=}" ;;
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-n|--size|--rotate-count) size="${2}" ; shift ;;
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--buffer=*) buffer="${1#--buffer=}" ;;
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-b|--buffer) buffer="${2}" ; shift ;;
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-h|--help|*)
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LEAD_SPACE_="`echo ${progname%.*} | tr '[ -~]' ' '`"
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echo "${progname%.*}.cat - dump current ${service%d} logs"
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echo "${progname%.*}.start [--size=<size_in_kb>] [--buffer=<buffers>] [--clear]"
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echo "${LEAD_SPACE_} - start ${service} service"
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echo "${progname%.*}.stop [--clear] - stop ${service} service"
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case ${1} in
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-h|--help) exit 0 ;;
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*) echo ERROR: bad argument ${@} >&2 ; exit 1 ;;
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esac
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;;
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esac
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shift
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done
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if [ -z "${size}" -o "${size_default}" = "${size}" ]; then
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unset size
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fi
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if [ -n "${size}" ] &&
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! ( [ 0 -lt "${size}" ] && [ 2048 -ge "${size}" ] ) >/dev/null 2>&1; then
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echo ERROR: Invalid --size ${size} >&2
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exit 1
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fi
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if [ -z "${buffer}" -o "${buffer_default}" = "${buffer}" ]; then
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unset buffer
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fi
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if [ -n "${buffer}" ] && ! logcat -b ${buffer} -g >/dev/null 2>&1; then
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echo ERROR: Invalid --buffer ${buffer} >&2
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exit 1
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fi
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case ${progname} in
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*.cat)
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su 1036 ls "${data}" |
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if [ -n "${size}${buffer}" -o "true" = "${clear}" ]; then
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echo WARNING: Can not use --clear, --size or --buffer with ${progname%.*}.cat >&2
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fi
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su logd ls "${data}" |
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tr -d '\r' |
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sort -ru |
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sed "s#^#${data}/#" |
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su 1036 xargs cat
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su logd xargs cat
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;;
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*.start)
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su 0 setprop ${property} ${service}
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current_buffer="`getprop ${property}.buffer`"
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current_size="`getprop ${property}.size`"
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if [ "${service}" = "`getprop ${property}`" ]; then
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if [ "true" = "${clear}" ]; then
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su root stop ${service}
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su root setprop ${property} ""
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# 20ms done, guarantees content stop before rm
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sleep 1
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elif [ "${buffer}|${size}" != "${current_buffer}|${current_size}" ]; then
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echo "ERROR: Changing existing collection parameters from" >&2
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if [ "${buffer}" != "${current_buffer}" ]; then
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a=${current_buffer}
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b=${buffer}
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if [ -z "${a}" ]; then a="${default_buffer}"; fi
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if [ -z "${b}" ]; then b="${default_buffer}"; fi
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echo " --buffer ${a} to ${b}" >&2
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fi
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if [ "${size}" != "${current_size}" ]; then
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a=${current_size}
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b=${size}
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if [ -z "${a}" ]; then a="${default_size}"; fi
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if [ -z "${b}" ]; then b="${default_size}"; fi
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echo " --size ${a} to ${b}" >&2
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fi
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echo " Are you sure you want to do this?" >&2
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echo " Suggest add --clear to erase data and restart with new settings." >&2
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echo " To blindly override and retain data, ${progname%.*}.stop first." >&2
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exit 1
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fi
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fi
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if [ "true" = "${clear}" ]; then
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su logd,misc rm -rf "${data}"
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fi
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if [ -n "${buffer}${current_buffer}" ]; then
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su root setprop ${property}.buffer "${buffer}"
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fi
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if [ -n "${size}${current_size}" ]; then
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su root setprop ${property}.size "${size}"
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fi
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# ${service}.rc does the heavy lifting with the following trigger
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su root setprop ${property} ${service}
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getprop ${property}
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# 20ms done, to permit process feedback check
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sleep 1
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# also generate an error return code if not found running, bonus
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ps -t | grep "${data##*/}.*${service%d}"
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;;
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*.stop)
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su 0 stop ${service}
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su 0 setprop ${property} ""
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[ X"${1}" != X"-c" -a X"${1}" != X"--clear" ] ||
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( sleep 1 ; su 1036,9998 rm -rf "${data}" )
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if [ -n "${size}${buffer}" ]; then
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echo "WARNING: Can not use --size or --buffer with ${progname%.*}.stop" >&2
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fi
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su root stop ${service}
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su root setprop ${property} ""
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if [ -n "`getprop ${property}.buffer`" ]; then
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su root setprop ${property}.buffer ""
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fi
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if [ -n "`getprop ${property}.size`" ]; then
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su root setprop ${property}.size ""
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fi
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if [ "true" = "${clear}" ]; then
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# 20ms done, guarantees content stop before rm
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sleep 1
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su logd,misc rm -rf "${data}"
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fi
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;;
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*)
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echo "Unexpected command ${0##*/} ${@}" >&2
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echo "ERROR: Unexpected command ${0##*/} ${args}" >&2
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exit 1
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esac
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