class Concurrent::Semaphore

Overview

A semaphore allows execution of at most n tasks simultaneously.

#acquire(&)
Acquire an item from the semaphore, calling the block, and then safely releasing the semaphore.

def self.new(n : Int32) #

Create a semaphore for n concurrent accesses. Will raise if n <= 0.

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def acquire(&) #

Acquire an item from the semaphore, calling the block, and then safely releasing the semaphore.

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