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|
# Copyright (c) 1995-2005 Silicon Graphics, Inc. All Rights Reserved.
#
# 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 2 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.
#
prog=`basename $0`
PMVIEW=pmview
PMPROBE=pmprobe
CONFIRM="$PCP_XCONFIRM_PROG"
ECHONL="echo -n"
_multiple_sources=false
#
# Standard usage and command-line argument parsing for pmview front ends.
# This file should be included by pmview front end scripts to present a
# consistent interface. See pmview(1), dkvis(1), mpvis(1) and nfsvis(1)
# for more information on their respective interfaces.
#
#
# The front end scripts should call _pmview_usage after their own usage
# information in a subroutine called _usage. The _usage subroutine may be
# called by either _pmview_note or _pmview_args.
#
_pmview_usage()
{
if $_multiple_sources
then
echo -n '
-A align align sample times on natural boundaries
-a archive[,archive...]
metrics source is one or more PCP archive logs
-C check configuration file and exit
-h host[,host...] metrics source is PMCD on one or more hosts'
else
echo -n '
-A align align sample times on natural boundaries
-a archive metrics source is a PCP archive log
-C check configuration file and exit
-h host metrics source is PMCD on host'
fi
echo '
-n pmnsfile use an alternative PMNS
-O offset initial offset into the time window
-p port port name for connection to existing time control
-S starttime start of the time window
-T endtime end of the time window
-t interval sample interval [default 2.0 seconds]
-x version use pmlaunch(5) version [default version 2.0]
-z set reporting timezone to local time of metrics source
-Z timezone set reporting timezone
-display display-string
-geometry geometry-string
-name name-string
-title title-string
-xrm resource'
}
# Most front-end scripts can handle input from only one source, and
# hence only one -h or -a option.
#
# For those than can handle multiple sources, they should call
# _pmview_multiple_sources_are_ok before calling _pmview_args to
# enable the following extensions to the -a and -h options:
# -a a1 -a a2 ... multiple -a options
# -h h1 -h h2 ... multiple -h options
# -a a1,a2,... multiple archives with the -a option
# -h h1,h2,... multiple hosts with the -h option
#
_pmview_multiple_sources_are_ok()
{
_multiple_sources=true
}
# check for magic numbers in a file that indicate it is a PCP archive
#
# if file(1) was reliable, this would be much easier, ... sigh
#
# if you need to change this, make consistent changes in all these
# places:
# _check_file() in src/pmafm/mkaf
# _is_archive() in src/pmafm/pmafm
# _is_archive() in src/pmview/front-ends/pmview-args
#
_is_archive()
{
case "$PCP_PLATFORM" in
irix)
dd ibs=1 count=7 if="$1" 2>/dev/null | od -X | $PCP_AWK_PROG '
NR == 1 && $2 == "00000084" && $3 == "50052600" { exit 0 }
{ exit 1 }'
;;
linux)
dd ibs=1 count=7 if="$1" 2>/dev/null | od -x | $PCP_AWK_PROG '
NR == 1 && NF == 5 && $2 == "0000" && $3 == "0084" && $4 == "5005" && $5 == "2600" { exit 0 }
NR == 1 && NF == 5 && $2 == "0000" && $3 == "8400" && $4 == "0550" && $5 == "0026" { exit 0 }
{ exit 1 }'
;;
esac
return $?
}
# One of the first actions of a front end script should be to call
# _pmview_args. It sets the following variables:
#
# host the first host specified with -h (if any) in the format
# hostname
# else the host from the first archive in the format
# hostname (Archive archivename)
# arch the first archive specified with -a (if any).
# All archives are passed on to pmview with one -a
# argument per archive via $args
# numsource Number of metrics sources (hosts or archives)
# args The list of args that pmview will comprehend and use.
# otherArgs The arguments pmview will not understand and should be
# handled by the front end script.
# titleArg The title the user prefers. If empty, the title should be
# provided by the front end script.
# prog The name of the program.
# namespace The namespace (including the flag) if specified, else empty
# eg "-n foo"
# msource The default metrics source, whether live or an archive,
# including the flag. e.g. "-h blah" or "-a first_archive".
# Taken from the first encountered -a or -h option.
#
# sourcelist space separated list of hosts or archives
#
_pmview_args()
{
_seen_host=false
_seen_arch=false
host=""
arch=""
numsource=0
args=""
otherArgs=""
titleArg=""
namespace=""
msource=""
if [ $# -eq 1 -a '$1' = '-\?' ]
then
_usage
exit 0
fi
while [ $# -gt 0 ]
do
case $1
in
-g*|-di*|-name|-xrm)
# assume an X11 argument
if [ $# -lt 2 ]
then
_pmview_note Usage-Error error "$prog: X-11 option $1 requires one argument"
#NOTREACHED
fi
args="$args $1 '$2'"
shift
;;
-title)
# assume an X11 argument
if [ $# -lt 2 ]
then
_pmview_note Usage-Error error "$prog: Option $1 requires one argument"
#NOTREACHED
exit 1
fi
titleArg="$2"
shift
;;
-A|-D|-O|-p|-S|-T|-t|-x|-Z)
if [ $# -lt 2 ]
then
_pmview_note Usage-Error error "$prog: Option $1 requires one argument"
#NOTREACHED
fi
args="$args $1 '$2'"
shift
;;
-A*|-D*|-O*|-p*|-S*|-T*|-t*|-Z*|-C|-z)
args="$args $1"
;;
-a)
if $_seen_host
then
_pmview_note Usage-Error error "$prog: Only one of the -h or -a options may be specified"
#NOTREACHED
fi
if [ $# -lt 2 ]
then
_pmview_note Usage-Error error "$prog: Option $1 requires one argument"
#NOTREACHED
fi
for _archbase in `echo "$2" | sed -e 's/,/ /g'`
do
if [ $numsource -gt 0 -a $_multiple_sources = false ]
then
_pmview_note Usage-Error error "$prog: Only one -a option may be specified"
# NOTREACHED
fi
if _is_archive $_archbase 2>&1
then
_archbase=`echo $_archbase | sed -e 's/\.[^.]*$//'`
fi
# at least $_archbase.0 and $_archbase.meta have to be here
#
if _is_archive $_archbase.0 && _is_archive $_archbase.meta
then
:
else
_pmview_note Error error "$prog: \"$_archbase\" is not the basename of a valid PCP archive"
#NOTREACHED
fi
if [ -z "$arch" ]
then
# first archive seen
#
arch=$_archbase
msource="-a $_archbase"
host=`pmdumplog -l $arch \
| $PCP_AWK_PROG '/^Performance/ {print $5}' \
| sed -e 's/,//g'`
[ "X$host" = X ] && host="unknown host"
host="$host (Archive $arch)"
fi
# pmview(1) can handle multiple -a options, so
# pass _all_ archive names back to the caller both as
# -a options via $args and in $sourcelist (counted by
# $numsource).
#
# Note: multiple -h options are handled slightly
# differently, see also the comments for -h below.
#
args="$args -a $_archbase"
if [ -z "$sourcelist" ]; then
sourcelist=$_archbase
else
sourcelist="$sourcelist $_archbase"
fi
numsource=`expr $numsource + 1`
done
_seen_arch=true
shift
;;
-h)
if $_seen_arch
then
_pmview_note Usage-Error error "$prog: Only one of the -h or -a options may be specified"
#NOTREACHED
fi
if [ $# -lt 2 ]
then
_pmview_note Usage-Error error "$prog: Option $1 requires one argument"
#NOTREACHED
fi
for _host in `echo "$2" | sed -e 's/,/ /g'`
do
if [ $numsource -gt 0 -a $_multiple_sources = false ]
then
_pmview_note Usage-Error error "$prog: Only one -h option may be specified"
# NOTREACHED
fi
if [ -z "$host" ]
then
host=$_host
msource="-h $_host"
# pmview(1) can handle only one -h options, so
# pass the _first_ host name back to the caller as a
# -h option via $args and _all_ hostnames via
# $sourcelist (counted by $numsource).
#
# Note: multiple -a options are handled slightly
# differently, see also the comments for -a above.
#
args="$args -h $_host"
fi
if [ -z "$sourcelist" ]; then
sourcelist=$_host
else
sourcelist="$sourcelist $_host"
fi
numsource=`expr $numsource + 1`
done
_seen_host=true
shift
;;
-n)
if [ $# -lt 2 ]
then
_pmview_note Usage-Error error "$prog: Option $1 requires one argument"
#NOTREACHED
fi
namespace="-n $2"
args="$args -n $2"
shift
;;
*)
otherArgs="$otherArgs $1"
;;
esac
shift
done
if [ -z "$host" ]
then
host=`pmhostname`
msource="-h $host"
fi
}
# standard fatal error reporting
# Usage: _pmview_error message goes in here
# _pmview_error -f file
#
_pmview_error()
{
_pmview_note Error error $*
}
# standard warning
# Usage: _pmview_warning message goes in here
# _pmview_warning -f file
#
_pmview_warning()
{
_pmview_note Warning warning $*
}
# standard info
# Usage: _pmview_info message goes in here
# _pmview_info -f file
#
_pmview_info()
{
_pmview_note Info info $*
}
# generic notifier
# Usage: _pmview_note tag icon args ...
#
_pmview_note()
{
tag=$1; shift
icon=$1; shift
button=""
[ $tag = Error ] && button="-B Quit"
[ $tag = Usage-Error ] && button="-B Quit -b Usage"
[ X"$PCP_STDERR" = XDISPLAY -a -z "$DISPLAY" ] && unset PCP_STDERR
if [ $# -eq 2 -a "X$1" = X-f ]
then
case "$PCP_STDERR"
in
DISPLAY)
ans=`$CONFIRM -icon $icon -file $2 -useslider -header "$tag $prog" $button 2>&1`
;;
'')
echo "$tag:" >&2
cat $2 >&2
ans=Quit
;;
*)
echo "$tag:" >>$PCP_STDERR
cat $2 >>$PCP_STDERR
ans=Quit
;;
esac
else
case "$PCP_STDERR"
in
DISPLAY)
ans=`$CONFIRM -icon $icon -t "$*" -noframe -header "$tag $prog" $button 2>&1`
;;
'')
echo "$tag: $*" >&2
ans=Quit
;;
*)
echo "$tag: $*" >>$PCP_STDERR
ans=Quit
;;
esac
fi
if [ $tag = Usage-Error ]
then
[ $ans = Usage ] && _usage
tag=Error
fi
[ $tag = Error ] && exit 1
}
# used internally by _pmview_cache_fetch() and _pmview_fetch()
#
_pmview_probe()
{
flag=$1
shift
( echo $* \
; echo "-----" \
; ( $PMPROBE $namespace $msource $flag $* 2>$tmp.pmview_err \
| tee -a $tmp.pmview_fetch \
) \
) \
| tr ' ' '\012' \
| sed -e 's/"//g' \
| $PCP_AWK_PROG '
BEGIN { last = 0 }
$1 == "-----" { state = 1; next }
state == 0 { metric[last] = pat[last] = $1
# deal with arguments that are non-terminals in the PMNS
# so pmprobe a.b => a.b.c a.b.c.x a.b.d etc
gsub("\\.", "\\.", pat[last])
pat[last] = "^" pat[last] "\\."
last++
next
}
state > 0 { for (i = 0; i < last; i++) {
if (metric[i] == $1 || match($1, pat[i]) > 0) {
# new matching metric name
name=$1
state=2
next
}
}
}
state == 2 { if ($1 > 0) state = 3
else state = 1
next
}
state == 3 { printf("%s%s|%s\n", "'"$flag|$msource|"'",name,$1) }'
}
# Fetch metrics and cache result
# input
# $1 - pmprobe flag
# $* - 1 or more metrics
# output
# $tmp.pmview_cache - cached values, with this format
# pmprobe flag|metric source|metric name|pmprobe result
#
_pmview_cache_fetch()
{
flag=$1
shift
_pmview_probe $flag $* >>$tmp.pmview_cache
return 0
}
# Fetch metrics
#
# input
# $1 - pmprobe flag
# $2 - metric name
# output
# $number - number of values
# $tmp.pmview_result - values
#
_pmview_fetch()
{
flag=$1
metric=$2
rm -f $tmp.pmview_fetch $tmp.pmview_result
if [ -s $tmp.pmview_cache ]
then
$PCP_AWK_PROG -F\| \
<$tmp.pmview_cache >$tmp.pmview_result \
'
$1 == "'"$flag"'" && $2 == "'"$msource"'" && $3 == "'"$metric"'" { print $4 }'
fi
if [ ! -s $tmp.pmview_result ]
then
# cache miss, forced to probe
#
_pmview_probe $flag $metric \
| $PCP_AWK_PROG -F\| >$tmp.pmview_result '{print $4}'
fi
if [ -s $tmp.pmview_result ]
then
number=`wc -l <$tmp.pmview_result | sed -e 's/ //g'`
else
if [ -s $tmp.pmview_fetch ]
then
check=`cut -d ' ' -f 2 $tmp.pmview_fetch`
if [ "$check" = "$metric" ]
then
# *.pmview_fetch looks valid, extract numval from 2nd field
#
number=`cut -d ' ' -f 2 $tmp.pmview_fetch`
else
# *.pmview_fetch exists, but does not contain
# pmprobe output, more than likely this is some
# sort of fatal error message ... but _real_ message
# is likely to be in *.pmview_err
#
[ -s $tmp.pmview_err ] && mv $tmp.pmview_err $tmp.pmview_fetch
number=-1
fi
else
number=-1
mv $tmp.pmview_err $tmp.pmview_fetch
fi
fi
if [ $number -le 0 ]
then
rm -f $tmp.pmview_result
return 1
fi
return 0
}
# Fetch the metric values
#
# input
# $1 - metric name
# output
# $number - number of values
# $tmp.pmview_result - values
#
_pmview_fetch_values()
{
_pmview_fetch -v $1
return $?
}
# Fetch the metric instance list
#
# input
# $1 - metric name
# output
# $number - number of instances
# $tmp.pmview_result - instances
#
_pmview_fetch_indom()
{
_pmview_fetch -I $1
return $?
}
# Convert pmprobe/pminfo error message into something useful and
# consistent
#
_pmview_fetch_mesg()
{
$PCP_AWK_PROG '
$1 == "pmprobe:" { $1 = "'$prog':"; print; exit }
$1 == "pminfo:" { $1 = "'$prog':"; print; exit }
$1 == "Error:" { $1 = ":";
printf("%s: %s%s\n", "'$prog'", metric, $0); exit }
$1 == "inst" { exit }
NF == 1 { metric = $1; next }
NF == 0 { next }
NF == 2 && $2 == "0" { printf("%s: %s: No values available\n", "'$prog'", $1); exit}
{ $2 = ":"; print "'$prog': " $0; exit}' \
| sed "s/ : /: /" \
| fmt
}
# Generate error metric for failed fetch
#
_pmview_fetch_fail()
{
cat $tmp.pmview_fetch | _pmview_fetch_mesg >> $tmp.msg
echo "$prog: Failed to $1 from host \"$host\"" | fmt >> $tmp.msg
_pmview_error -f $tmp.msg
# NOTREACHED
}
# Generate warning message for failed fetch
#
_pmview_fetch_warn()
{
cat $tmp.pmview_fetch | _pmview_fetch_mesg >> $tmp.msg
echo "$prog: Failed to $1 from host \"$host\"" | fmt >> $tmp.msg
_pmview_warning -f $tmp.msg
rm -f $tmp.msg
}
# Check that $OPTARG for option $1 is a positive integer
# ...note the creative use of unary - to prevent leading signs
#
_pmview_unsigned()
{
if [ "X-$OPTARG" != "X`expr 0 + -$OPTARG 2>/dev/null`" ]
then
_pmview_error "$prog: -$1 option must have a positive integral argument"
# NOTREACHED
fi
}
|