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Feature #1008

closed

MI interface should advertise its own version number

Added by Anonymous about 8 years ago. Updated about 8 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Target version:
-
Start date:
04/01/2016
Due date:
% Done:

0%

Estimated time:

Description

It would be useful to have a version number for the MI interface itself, distinct from the LTTng version. This would help MI users know if the interface breaks in non-backwards compatible ways.

This version could be printed when doing lttng --mi xml --version, or perhaps simply with lttng --version.

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 #1

Updated by Jonathan Rajotte Julien about 8 years ago

  • Status changed from New to Resolved

Hi Alex,

Starting from LTTng 2.8 the mi version can be found in every mi output inside the <command> element as the "schemaVersion" attributes.

The standalone version start from lttng 2.8 otherwise the mi version is the same as the toolchain version.

E.g


<?xml version="1.0" encoding="UTF-8"?>
<command xmlns="http://lttng.org/xml/ns/lttng-mi" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://lttng.org/xml/ns/lttng-mi http://lttng.org/xml/schemas/lttng-mi/3/lttng-mi-3.0.xsd" schemaVersion="3.0">
  <name>version</name>
  <output>
    <version>
      <string>2.9.0-pre</string>
      <major>2</major>
      <minor>9</minor>
      <commit>v2.7.0-rc1-580-gb1300bf</commit>
      <patchLevel>0</patchLevel>
      <name>Codename TBD</name>
      <description>Description TBD</description>
      <url>https://lttng.org</url>
      <license>lttng is free software and under the GPL license and part LGPL</license>
    </version>
  </output>
</command>

Cheers

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