babeltrace2-filter.utils.muxer

NAME

babeltrace2-filter.utils.muxer - Babeltrace 2's message muxer filter component class

DESCRIPTION

A Babeltrace 2 filter.utils.muxer message iterator muxes the messages that it consumes from one or more upstream message iterators into a linear sequence of messages ordered by time.

            +-----------------+
            | flt.utils.muxer |
            |                 |
Messages -->@ in0         out @--> Sorted messages
Messages -->@ in1             |
Messages -->@ in2             |
            @ in3             |
            +-----------------+

See babeltrace2-intro(7) to learn more about the Babeltrace 2 project and its core concepts.

A filter.utils.muxer message iterator does not alter the messages it consumes: it only sorts them.

The message iterator creates one upstream message iterator per connected input port.

Note

To support muxing messages with different default clock classes, the message iterator converts the message times to nanoseconds from the common origin (Unix epoch, for example). This means that the resulting message sequence could be incorrect if one or more clock classes have a frequency which is greater than 1 GHz.

PORTS

+-----------------+
| flt.utils.muxer |
|                 |
@ in0         out @
@ ...             |
+-----------------+

Input

inN, where N is a decimal integer starting at 0

Input port on which a filter.utils.muxer message iterator creates an upstream message iterator to consumes messages from.

When the component is initialized, its only input port is in0. When you connect the in0 port, the component creates the in1 input port, and so on.

In other words, a filter.utils.muxer component always has an available input port.