BABELTRACE2-QUERY-(7) Babeltrace 2 manual BABELTRACE2-QUERY-(7)
babeltrace2-query-babeltrace.trace-infos - Babeltrace 2's trace infos query object
The babeltrace.trace-infos Babeltrace 2 query object indicates time range information about specific traces and their streams, and which output ports of an eventual source component will serve the messages for a given stream. The babeltrace2-convert(1) command queries this object from all the source component classes to support the --stream-intersection feature.
The parameters for this query operation are exactly the same as you would pass as the initialization parameters of a component created from the queried component class.
The result object is an array of trace info maps (see “Trace info map”). Trace info map A trace info map contains: stream-infos=STREAM-INFOS [array of stream info maps] Stream info maps (see “Stream info map”) for this trace. Stream info map A stream info map contains: range-ns=RANGE [range map] The time range of this stream, a map containing: begin=NS [signed integer] Beginning time of this stream (nanoseconds since the stream class’s default clock class’s origin). end=NS [signed integer] End time of this stream (nanoseconds since the stream class’s default clock class’s origin). port-name=PORT-NAME [string] For an eventual source component initialized with the same parameters: name of the output port which serves the messages of this stream.
Result object Example 1. Two trace infos: one with three stream infos, one with two stream infos. - stream-infos: - range-ns: begin: 1509556764975082000 end: 1509557102181554400 port-name: trace0-cpu0 - range-ns: begin: 1509556764947050800 end: 1509557102182771000 port-name: trace0-cpu1 - range-ns: begin: 1509556764956409300 end: 1509557102182770400 port-name: trace0-cpu2 - stream-infos: - range-ns: begin: 1509556764918082000 end: 1509557103849928400 port-name: trace1-cpu0 - range-ns: begin: 1509556761888820000 end: 1509557109928100400 port-name: trace1-cpu1
If you encounter any issue or usability problem, please report it on the Babeltrace bug tracker (see <https://bugs.lttng.org/projects/babeltrace>).
The Babeltrace project shares some communication channels with the LTTng project (see <https://lttng.org/>). • Babeltrace website (see <https://babeltrace.org/>) • Mailing list (see <https://lists.lttng.org>) for support and development: email@example.com • IRC channel (see <irc://irc.oftc.net/lttng>): #lttng on irc.oftc.net • Bug tracker (see <https://bugs.lttng.org/projects/babeltrace>) • Git repository (see <https://git.efficios.com/?p=babeltrace.git>) • GitHub project (see <https://github.com/efficios/babeltrace>) • Continuous integration (see <https://ci.lttng.org/view/Babeltrace/>) • Code review (see <https://review.lttng.org/q/project:babeltrace>)
The Babeltrace 2 project is the result of hard work by many regular developers and occasional contributors. The current project maintainer is Jérémie Galarneau <mailto:firstname.lastname@example.org>.
This query object is part of the Babeltrace 2 project. Babeltrace is distributed under the MIT license (see <https://opensource.org/licenses/MIT>).
babeltrace2-intro(7), babeltrace2-query(1), babeltrace2-convert(1)
This page is part of the babeltrace (trace read and write libraries and a trace converter) project. Information about the project can be found at ⟨http://www.efficios.com/babeltrace⟩. If you have a bug report for this manual page, send it to email@example.com. This page was obtained from the project's upstream Git repository ⟨git://git.efficios.com/babeltrace.git⟩ on 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2021-08-20.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to firstname.lastname@example.org Babeltrace 2.1.0-rc1 14 September 2019 BABELTRACE2-QUERY-(7)
Pages that refer to this page: babeltrace2-convert(1), babeltrace2-source.ctf.fs(7)