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https://issues.apache.org/jira/browse/IGNITE-2399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15106509#comment-15106509
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Andrey Kornev commented on IGNITE-2399:
---------------------------------------
In order to support async actions (as per ticket description) the method
signature should be
{code}
<T> IgniteFuture<T> acquireAndExecute(Callable<IgniteFuture<T>> action, int
numPermits);
{code}
Such signature makes the contract explicit, and more importantly it correctly
unwraps the input future to return the type T and not {{IgniteFuture<T>}} as
would be the case with the original signature.
> Add asynchronous acquire to IgniteSemaphore
> -------------------------------------------
>
> Key: IGNITE-2399
> URL: https://issues.apache.org/jira/browse/IGNITE-2399
> Project: Ignite
> Issue Type: Improvement
> Components: data structures
> Reporter: Vladisav Jelisavcic
> Fix For: 1.6
>
>
> Usually a permit acquisition is followed by an action, followed by a release
> of the permit. A simple enhancement to the existing Semaphore API can be made
> that enables asynchronous acquire:
> <T> IgniteFuture<T> acquireAndExecute(Callable<T> action, int numPermits);
> The method would immediately return a future to be later completed by the
> action's result. Permits are to be released after the future is completed.
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