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 sensors_sys_dir="/sys/devices"
   7 sensors_sys_depth=10
   8
   9 # _update_every is a special variable - it holds the number of seconds
  10 # between the calls of the _update() function
  11 sensors_update_every=
  12
  13 sensors_find_all_files() {
  14         find $1 -maxdepth $sensors_sys_depth -name \*_input -o -name temp 2>/dev/null
  15 }
  16
  17 sensors_find_all_dirs() {
  18         sensors_find_all_files $1 | while read
  19         do
  20                 dirname $REPLY
  21         done | sort -u
  22 }
  23
  24 # _check is called once, to find out if this chart should be enabled or not
  25 sensors_check() {
  26
  27         # this should return:
  28         #  - 0 to enable the chart
  29         #  - 1 to disable the chart
  30
  31         [ ! -z "$( sensors_find_all_files $sensors_sys_dir )" ] && return 0
  32         return 1
  33 }
  34
  35 sensors_check_files() {
  36         local f= v=
  37         for f in $*
  38         do
  39                 echo >&2 "checking $f"
  40                 v="$( cat $f )"
  41                 v=$(( v + 1 - 1 ))
  42                 [ $v -ne 0 ] && echo "$f"
  43         done
  44 }
  45
  46 # _create is called once, to create the charts
  47 sensors_create() {
  48         local path= dir= name= x= file= lfile= labelname= labelid= device= subsystem= id= type= mode= files= multiplier= divisor=
  49
  50         echo >$TMP_DIR/temp.sh "sensors_update() {"
  51
  52         for path in $( sensors_find_all_dirs $sensors_sys_dir | sort -u )
  53         do
  54                 dir=$( basename $path )
  55                 device=
  56                 subsystem=
  57                 id=
  58                 type=
  59                 name=
  60
  61                 [ -h $path/device ] && device=$( readlink -f $path/device )
  62                 [ ! -z "$device" ] && device=$( basename $device )
  63                 [ -z "$device" ] && device="$dir"
  64
  65                 [ -h $path/subsystem ] && subsystem=$( readlink -f $path/subsystem )
  66                 [ ! -z "$subsystem" ] && subsystem=$( basename $subsystem )
  67                 [ -z "$subsystem" ] && subsystem="$dir"
  68
  69                 [ -f $path/name ] && name=$( cat $path/name )
  70                 [ -z "$name" ] && name="$dir"
  71
  72                 [ -f $path/type ] && type=$( cat $path/type )
  73                 [ -z "$type" ] && type="$dir"
  74
  75                 id="$( fixid "$device.$subsystem.$dir" )"
  76
  77                 echo >&2 "charts.d: sensors on path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
  78
  79                 for mode in temperature voltage fans power current energy humidity
  80                 do
  81                         files=
  82                         multiplier=1
  83                         divisor=1
  84                         algorithm="absolute"
  85
  86                         case $mode in
  87                                 temperature)
  88                                         files="$( ls $path/temp*_input 2>/dev/null; ls $path/temp 2>/dev/null )"
  89                                         files="$( sensors_check_files $files )"
  90                                         [ -z "$files" ] && continue
  91                                         echo "CHART sensors.temp_${id} '' '${name} Temperature' 'Celcius' '${device}' '' line 6000 $sensors_update_every"
  92                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.temp_${id} \$1\""
  93                                         divisor=1000
  94                                         ;;
  95
  96                                 voltage)
  97                                         files="$( ls $path/in*_input 2>/dev/null )"
  98                                         files="$( sensors_check_files $files )"
  99                                         [ -z "$files" ] && continue
 100                                         echo "CHART sensors.volt_${id} '' '${name} Voltage' 'Volts' '${device}' '' line 6001 $sensors_update_every"
 101                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.volt_${id} \$1\""
 102                                         divisor=1000
 103                                         ;;
 104
 105                                 current)
 106                                         files="$( ls $path/curr*_input 2>/dev/null )"
 107                                         files="$( sensors_check_files $files )"
 108                                         [ -z "$files" ] && continue
 109                                         echo "CHART sensors.curr_${id} '' '${name} Current' 'Ampere' '${device}' '' line 6002 $sensors_update_every"
 110                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.curr_${id} \$1\""
 111                                         divisor=1000
 112                                         ;;
 113
 114                                 power)
 115                                         files="$( ls $path/power*_input 2>/dev/null )"
 116                                         files="$( sensors_check_files $files )"
 117                                         [ -z "$files" ] && continue
 118                                         echo "CHART sensors.power_${id} '' '${name} Power' 'Watt' '${device}' '' line 6003 $sensors_update_every"
 119                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.power_${id} \$1\""
 120                                         divisor=1000000
 121                                         ;;
 122
 123                                 fans)
 124                                         files="$( ls $path/fan*_input 2>/dev/null )"
 125                                         files="$( sensors_check_files $files )"
 126                                         [ -z "$files" ] && continue
 127                                         echo "CHART sensors.fan_${id} '' '${name} Fans Speed' 'Rotations / Minute' '${device}' '' line 6004 $sensors_update_every"
 128                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.fan_${id} \$1\""
 129                                         ;;
 130
 131                                 emergy)
 132                                         files="$( ls $path/energy*_input 2>/dev/null )"
 133                                         files="$( sensors_check_files $files )"
 134                                         [ -z "$files" ] && continue
 135                                         echo "CHART sensors.energy_${id} '' '${name} Energy' 'Joule' '${device}' '' areastack 6005 $sensors_update_every"
 136                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.energy_${id} \$1\""
 137                                         algorithm="incremental"
 138                                         divisor=1000000
 139                                         ;;
 140
 141                                 humidity)
 142                                         files="$( ls $path/humidity*_input 2>/dev/null )"
 143                                         files="$( sensors_check_files $files )"
 144                                         [ -z "$files" ] && continue
 145                                         echo "CHART sensors.humidity_${id} '' '${name} Humidity' 'Percent' '${device}' '' line 6006 $sensors_update_every"
 146                                         echo >>$TMP_DIR/temp.sh "echo \"BEGIN sensors.humidity_${id} \$1\""
 147                                         divisor=1000
 148                                         ;;
 149
 150                                 *)
 151                                         continue
 152                                         ;;
 153                         esac
 154
 155                         for x in $files
 156                         do
 157                                 file="$x"
 158                                 fid="$( fixid "$file" )"
 159                                 lfile="$( basename $file | sed "s|_input$|_label|g" )"
 160                                 labelname="$( basename $file | sed "s|_input$||g" )"
 161
 162                                 if [ ! "$path/$lfile" = "$file" -a -f "$path/$lfile" ]
 163                                         then
 164                                         labelname="$( cat "$path/$lfile" )"
 165                                 fi
 166
 167                                 echo "DIMENSION $fid '$labelname' $algorithm $multiplier $divisor"
 168                                 echo >>$TMP_DIR/temp.sh "printf \"SET $fid = \"; cat $file "
 169                         done
 170
 171                         echo >>$TMP_DIR/temp.sh "echo END"
 172                 done
 173         done
 174
 175         echo >>$TMP_DIR/temp.sh "}"
 176         cat >&2 $TMP_DIR/temp.sh
 177         . $TMP_DIR/temp.sh
 178
 179         return 0
 180 }
 181
 182 # _update is called continiously, to collect the values
 183 sensors_update() {
 184         # the first argument to this function is the microseconds since last update
 185         # pass this parameter to the BEGIN statement (see bellow).
 186
 187         # do all the work to collect / calculate the values
 188         # for each dimension
 189         # remember: KEEP IT SIMPLE AND SHORT
 190
 191 #       . $TMP_DIR/temp.sh $1
 192
 193         return 0
 194 }
 195