doc/examples/map/demo.sh

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2021 Francis Deslauriers <francis.deslauriers@efficios.com>
   4 #
   5 # SPDX-License-Identifier: MIT
   6
   7 SESSION_NAME="incr_value_ex_sess"
   8 MAP_NAME="incr_value_ex_map"
   9 TRIGGER_NAME="incr_value_ex_trigger"
  10
  11 lttng list > /dev/null 2>&1
  12 if [ $? -ne 0 ]; then
  13     echo "Could not connect to session daemon, are you sure it is running?"
  14     exit 1
  15 fi
  16
  17 echo "1. Creating a session"
  18 lttng create $SESSION_NAME
  19 echo ""
  20
  21 echo "2. Creating a UST map with default configuration"
  22 lttng add-map --userspace $MAP_NAME
  23 lttng list $SESSION_NAME --map=$MAP_NAME
  24 echo ""
  25
  26 echo "3. Registering a incr-value trigger named \"$TRIGGER_NAME\" for user-space events"
  27 echo "   The \"$TRIGGER_NAME\" trigger has 2 distinct \`incr-value\` actions."
  28 lttng add-trigger --id $TRIGGER_NAME \
  29         --condition on-event -u "incr_value_ex:*" \
  30         --action incr-value --session $SESSION_NAME --map $MAP_NAME --key 'Total number of events' \
  31         --action incr-value --session $SESSION_NAME --map $MAP_NAME --key '${PROVIDER_NAME} -> ${EVENT_NAME}'
  32 lttng list-triggers
  33 echo ""
  34
  35
  36 echo "4. Start the tracing and run the application for 10 seconds"
  37 lttng start
  38 timeout 10 ./instrumented-app > /dev/null
  39 echo ""
  40
  41 echo "5. Stop tracing"
  42 lttng stop
  43 echo ""
  44
  45 echo "6. View the $MAP_NAME map"
  46 lttng view-map $MAP_NAME
  47 echo ""
  48
  49 echo "7. View only on key of the $MAP_NAME map"
  50 lttng view-map $MAP_NAME --key "incr_value_ex -> event1"
  51 echo ""
  52
  53
  54 echo "8. Query a specific value using the C API"
  55 ./query-example $SESSION_NAME $MAP_NAME "Total number of events"
  56 echo ""
  57
  58 lttng destroy -a
  59 lttng remove-trigger $TRIGGER_NAME