mailbox-get? ( mailbox pred -- obj )
Mailboxes

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Vocabulary
concurrency.mailboxes

Inputs

mailbox	a mailbox
pred	a quotation with stack effect ( obj -- ? )

Outputs

obj

an object

Word description
Get the first item in the mailbox which satisfies the predicate. When the predicate returns true that item will be returned. If nothing in the mailbox satisfies the predicate then the thread will block until something does.

Definition

USING: kernel ;

IN: concurrency.mailboxes

: mailbox-get? ( mailbox pred -- obj )
    f swap mailbox-get-timeout? ; inline