charts.d/sensors.chart.sh

   1 #!/bin/sh
   2
   3 # if this chart is called X.chart.sh, then all functions and global variables
   4 # must start with X_
   5
   6 # _update_every is a special variable - it holds the number of seconds
   7 # between the calls of the _update() function
   8 sensors_update_every=
   9
  10 sensors_find_all_files() {
  11         find $1 -name temp\?_input -o -name temp -o -name in\?_input -o -name fan\?_input 2>/dev/null
  12 }
  13
  14 sensors_find_all_dirs() {
  15         sensors_find_all_files $1 | while read
  16         do
  17                 dirname $REPLY
  18         done | sort -u
  19 }
  20
  21 # _check is called once, to find out if this chart should be enabled or not
  22 sensors_check() {
  23
  24         # this should return:
  25         #  - 0 to enable the chart
  26         #  - 1 to disable the chart
  27
  28         [ ! -z "$( sensors_find_all_files /sys/devices/ )" ] && return 0
  29         return 1
  30 }
  31
  32 # _create is called once, to create the charts
  33 sensors_create() {
  34         local path= dir= name= x= file= lfile= labelname= labelid= device= subsystem= id= type= mode= files= multiplier= divisor=
  35
  36         echo >$TMP_DIR/temp.sh "sensors_update() {"
  37
  38         for path in $( sensors_find_all_dirs /sys/devices/ | sort -u )
  39         do
  40                 dir=$( basename $path )
  41                 device=
  42                 subsystem=
  43                 id=
  44                 type=
  45                 name=
  46
  47                 [ -h $path/device ] && device=$( readlink -f $path/device )
  48                 [ ! -z "$device" ] && device=$( basename $device )
  49                 [ -z "$device" ] && device="$dir"
  50
  51                 [ -h $path/subsystem ] && subsystem=$( readlink -f $path/subsystem )
  52                 [ ! -z "$subsystem" ] && subsystem=$( basename $subsystem )
  53                 [ -z "$subsystem" ] && subsystem="$dir"
  54
  55                 [ -f $path/name ] && name=$( cat $path/name )
  56                 [ -z "$name" ] && name="$dir"
  57
  58                 [ -f $path/type ] && type=$( cat $path/type )
  59                 [ -z "$type" ] && type="$dir"
  60
  61                 id="$( fixid "$device.$subsystem.$dir" )"
  62
  63                 echo >&2 "charts.d: temperature sensors on path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
  64
  65                 for mode in temperature voltage fans
  66                 do
  67                         files=
  68                         multiplier=1
  69                         divisor=1
  70                         case $mode in
  71                                 temperature)
  72                                         files="$( find $path -name temp\?_input -o -name temp | sort -u)"
  73                                         [ -z "$files" ] && continue
  74                                         echo "CHART sensors.temp_${id} '' '${name} Temperature' 'Temperature' 'Celcius Degrees' '' line 6000 $sensors_update_every"
  75                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.temp_${id} \$1\""
  76                                         divisor=1000
  77                                         ;;
  78
  79                                 voltage)
  80                                         files="$( find $path -name in\?_input )"
  81                                         [ -z "$files" ] && continue
  82                                         echo "CHART sensors.volt_${id} '' '${name} Voltage' 'Voltage' 'Volts' '' line 6001 $sensors_update_every"
  83                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.volt_${id} \$1\""
  84                                         divisor=1000
  85                                         ;;
  86
  87                                 fans)
  88                                         files="$( find $path -name fan\?_input )"
  89                                         [ -z "$files" ] && continue
  90                                         echo "CHART sensors.fan_${id} '' '${name} Fans Speed' 'Fans' 'Rotations Per Minute (RPM)' '' line 6002 $sensors_update_every"
  91                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.fan_${id} \$1\""
  92                                         ;;
  93
  94                                 *)
  95                                         continue
  96                                         ;;
  97                         esac
  98
  99                         for x in $files
 100                         do
 101                                 file="$x"
 102                                 fid="$( fixid "$file" )"
 103                                 lfile="$( basename $file | sed "s|_input$|_label|g" )"
 104                                 labelname="$( basename $file )"
 105
 106                                 if [ ! "$path/$lfile" = "$file" -a -f "$path/$lfile" ]
 107                                         then
 108                                         labelname="$( cat "$path/$lfile" )"
 109                                 fi
 110
 111                                 echo "DIMENSION $fid '$labelname' absolute $multiplier $divisor"
 112                                 echo >>$TMP_DIR/temp.sh "printf \"SET $fid = \"; cat $file "
 113                         done
 114
 115                         echo >>$TMP_DIR/temp.sh "echo END"
 116                 done
 117         done
 118
 119         echo >>$TMP_DIR/temp.sh "}"
 120         . $TMP_DIR/temp.sh
 121
 122         return 0
 123 }
 124
 125 # _update is called continiously, to collect the values
 126 sensors_update() {
 127         # the first argument to this function is the microseconds since last update
 128         # pass this parameter to the BEGIN statement (see bellow).
 129
 130         # do all the work to collect / calculate the values
 131         # for each dimension
 132         # remember: KEEP IT SIMPLE AND SHORT
 133
 134 #       . $TMP_DIR/temp.sh $1
 135
 136         return 0
 137 }
 138