Feature #1008
closed
MI interface should advertise its own version number
Added by Anonymous about 9 years ago.
Updated about 9 years ago.
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.
- 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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