X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=doc%2Fman%2Flttng-add-trigger.1.txt;fp=doc%2Fman%2Flttng-add-trigger.1.txt;h=5694d28d695dd03dcb8351f5b1ffc50c38f6687c;hp=ccca9da0f8b4353e19dc9d1cd2157505e9556e0e;hb=26f0c7794376456fcb5b13d4eae91c0ccf0dfe66;hpb=65750bcdda3dd71b72683573d35a662c0b467a8f diff --git a/doc/man/lttng-add-trigger.1.txt b/doc/man/lttng-add-trigger.1.txt index ccca9da0f..5694d28d6 100644 --- a/doc/man/lttng-add-trigger.1.txt +++ b/doc/man/lttng-add-trigger.1.txt @@ -1,6 +1,6 @@ lttng-add-trigger(1) ==================== -:revdate: 23 April 2021 +:revdate: 3 May 2021 NAME @@ -18,33 +18,27 @@ SYNOPSIS DESCRIPTION ----------- The `lttng add-trigger` command creates and adds an LTTng _trigger_ to -the session daemon (see man:lttng-sessiond(8)). +the connected session daemon (see man:lttng-sessiond(8)). -A trigger is an association between a _condition_ and one or more -_actions_. When the condition of a trigger{nbsp}__T__ is satisfied, -LTTng requests to execute the actions of{nbsp}__T__. Depending on the -rate policy of an action, an execution request can become an actual -execution. +See man:lttng-concepts(7) to learn more about LTTng triggers. -A trigger doesn't belong to a specific tracing session: it's global to -the session daemon. Within the session daemon, and for a given Unix -user, a trigger has a unique name. By default, the `add-trigger` command -automatically assigns a name to the added trigger. Use the option:--name -option to assign a specific name instead. +By default, the `add-trigger` command automatically assigns a name, +unique for a given session daemon and Unix user, to the added trigger. +Assign a custom name with the option:--name. The `add-trigger` command adds a trigger for your Unix user. If your -Unix user is `root`, you can add the trigger as another user with the +Unix user is `root`, you may add the trigger as another user with the option:--owner-uid option. Specify the condition of the trigger to add with a <> and its actions with one or more <>. The order of the action specifiers is significant: LTTng -attempts to execute the actions of a trigger in order. +attempts to execute the actions of a firing trigger in this order. -List the available triggers for your Unix user (or for all users if your -Unix user is `root`) with the man:lttng-list-triggers(1) command. +List the triggers of your Unix user, or of all users if your +Unix user is `root`, with the man:lttng-list-triggers(1) command. -Remove an existing trigger with the man:lttng-remove-trigger(1) command. +Remove a trigger with the man:lttng-remove-trigger(1) command. [[cond-spec]] @@ -65,7 +59,7 @@ The available condition types are: Synopsis: + [verse] -option:--condition=event-rule-matches [nloption:--capture='CDESCR']... 'ERSPEC' +option:--condition=**event-rule-matches** [nloption:--capture='CDESCR']... 'ERSPEC' {nbsp} + An `event-rule-matches` condition is considered satisfied when the event @@ -168,7 +162,7 @@ Notify:: Synopsis: + [verse] -option:--action=notify [nloption:--rate-policy='POLICY'] +option:--action=**notify** [nloption:--rate-policy='POLICY'] {nbsp} + Sends a notification through the notification @@ -186,7 +180,7 @@ Start a tracing session:: Synopsis: + [verse] -option:--action=start-session 'SESSION' [nloption:--rate-policy='POLICY'] +option:--action=**start-session** 'SESSION' [nloption:--rate-policy='POLICY'] {nbsp} + Starts the tracing session named 'SESSION' like man:lttng-start(1) @@ -201,7 +195,7 @@ Stop a tracing session:: Synopsis: + [verse] -option:--action=stop-session 'SESSION' [nloption:--rate-policy='POLICY'] +option:--action=**stop-session** 'SESSION' [nloption:--rate-policy='POLICY'] {nbsp} + Stops the tracing session named 'SESSION' like man:lttng-stop(1) would. @@ -215,7 +209,7 @@ Rotate a tracing session:: Synopsis: + [verse] -option:--action=rotate-session 'SESSION' [nloption:--rate-policy='POLICY'] +option:--action=**rotate-session** 'SESSION' [nloption:--rate-policy='POLICY'] {nbsp} + Archives the current trace chunk of the tracing session named 'SESSION' @@ -230,7 +224,7 @@ Take a tracing session snapshot:: Synopsis: + [verse] -option:--action=snapshot-session 'SESSION' [nloption:--rate-policy='POLICY'] +option:--action=**snapshot-session** 'SESSION' [nloption:--rate-policy='POLICY'] {nbsp} + Takes a snapshot of the tracing session named 'SESSION' like @@ -315,5 +309,6 @@ include::common-cmd-footer.txt[] SEE ALSO -------- man:lttng(1), +man:lttng-concepts(7), man:lttng-list-triggers(1), man:lttng-remove-trigger(1)