Difference between revisions of "Channel:demand"

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{{newin|[[0.9.0]]|090|type=function}}
 
{{newin|[[0.9.0]]|090|type=function}}
Retrieves the value of a [[Channel]] message and removes it from the message queue.
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Retrieves the value of a Channel message and removes it from the message queue.
  
The value of the message can be a boolean, string, number or a LÖVE userdata. It waits until a message is in the queue then returns the message value.
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It waits until a message is in the queue then returns the message value.
 
== Function ==
 
== Function ==
 
=== Synopsis ===
 
=== Synopsis ===
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None.
 
None.
 
=== Returns ===
 
=== Returns ===
{{param|boolean, number, string or LÖVE userdata|value|The contents of the message.}}
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{{param|Variant|value|The contents of the message.}}
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== Function ==
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{{newin|[[11.0]]|110|type=variant}}
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=== Synopsis ===
 +
<source lang="lua">
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value = Channel:demand( timeout )
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</source>
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=== Arguments ===
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{{param|number|timeout|The maximum amount of time to wait, in seconds. Given as a decimal, accurate to the millisecond.}}
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=== Returns ===
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{{param|Variant|value|The contents of the message or nil if the timeout expired.}}
 
== See Also ==
 
== See Also ==
 
* [[parent::Channel]]
 
* [[parent::Channel]]
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* [[Channel:supply]]
 
* [[Channel:pop]]
 
* [[Channel:pop]]
 
[[Category:Functions]]
 
[[Category:Functions]]
{{#set:Description=Wait for and retrieve the value of a [[Channel]] message.}}
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{{#set:Description=Wait for and retrieve the value of a Channel message.}}
 
== Other Languages ==
 
== Other Languages ==
 
{{i18n|Channel:demand}}
 
{{i18n|Channel:demand}}

Latest revision as of 11:22, 7 July 2021

Available since LÖVE 0.9.0
This function is not supported in earlier versions.

Retrieves the value of a Channel message and removes it from the message queue.

It waits until a message is in the queue then returns the message value.

Function

Synopsis

value = Channel:demand( )

Arguments

None.

Returns

Variant value
The contents of the message.

Function

Available since LÖVE 11.0
This variant is not supported in earlier versions.

Synopsis

value = Channel:demand( timeout )

Arguments

number timeout
The maximum amount of time to wait, in seconds. Given as a decimal, accurate to the millisecond.

Returns

Variant value
The contents of the message or nil if the timeout expired.

See Also

Other Languages