ProtoFlux:Start Async Task: Difference between revisions

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Because Async is a complicated subject, please see [[Impulses#ASync|ASync Tasks]] For more information on how Async works and how this node can be used.
The '''Start Async Task''' node starts a new nested [[async context]] at the current impulse.


Start ASync Task is a ProtoFlux node that takes an impulse and starts an Async task.
== Inputs ==
== Inputs ==


=== * ([[Impulses|Call]]) ===
=== * ([[Impulses|Call]]) ===


Start an [[Impulses#ASync|ASync]] task.
Start the async task.


== Outputs ==
== Outputs ==
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=== TaskStart ([[Impulses#ASync|AsyncResumption]]) ===
=== TaskStart ([[Impulses#ASync|AsyncResumption]]) ===


Impulses when * ([[Impulses|Call]]) and is a new async task context.
The new async context made by the node. This impulse chain will run until it encounters any sort of asyncronous delay, at which it will continue execution along the <code>OnStarted</code> chain.
 
This context is ''nested'', meaning that any context-specific things, such as [[ProtoFlux:Local|locals]], are duplicated from the context that <code>*</code> comes from. Any future changes to context-specific things will not be reflected in the <code>OnStarted</code> chain and vice versa.


=== OnStarted ([[Impulses|Continuation]]) ===
=== OnStarted ([[Impulses|Continuation]]) ===


Fires at the exact same time as TaskStart and fires after * ([[Impulses|Call]]) is called.
Fires once <code>TaskStart</code> encounters any sort of delay, effectively running at the same time given the now-separate contexts.
 
=== OnStarted ([[Impulses|Continuation]]) ===


Fires after * ([[Impulses|Call]]) was called and the task was not started. (TODO: Why?)
=== OnFailed ([[Impulses|Continuation]]) ===


== Examples ==
Fires if the task was unable to be started. Currently, this only fires if <code>TaskStart</code> is not connected to any node.
<gallery widths=480px heights=480px>
File:Protoflux_example_Start_ASync_Task.webp|Start ASync Task being used to start a task for a [[ProtoFlux:Read Cloud Variable|Read Cloud Variable Node]].
</gallery>


[[Category:ProtoFlux:Flow:Async]]
[[Category:ProtoFlux:Flow:Async]]

Latest revision as of 23:18, 16 December 2024

Start Async Task
*
TaskStart
OnStarted
OnFailed
Async

The Start Async Task node starts a new nested async context at the current impulse.

Inputs

* (Call)

Start the async task.

Outputs

TaskStart (AsyncResumption)

The new async context made by the node. This impulse chain will run until it encounters any sort of asyncronous delay, at which it will continue execution along the OnStarted chain.

This context is nested, meaning that any context-specific things, such as locals, are duplicated from the context that * comes from. Any future changes to context-specific things will not be reflected in the OnStarted chain and vice versa.

OnStarted (Continuation)

Fires once TaskStart encounters any sort of delay, effectively running at the same time given the now-separate contexts.

OnFailed (Continuation)

Fires if the task was unable to be started. Currently, this only fires if TaskStart is not connected to any node.