Sha256: 7e22f51e06d0d7cdaaecd5d0c173da0fcc435da290d378778c9b1ecab32cee8a
Contents?: true
Size: 474 Bytes
Versions: 5
Compression:
Stored size: 474 Bytes
Contents
require 'thread'
module Vagrant
module Util
# Atomic counter implementation. This is useful for incrementing
# a counter which is guaranteed to only be used once in its class.
module Counter
def get_and_update_counter
mutex.synchronize do
@__counter ||= 1
result = @__counter
@__counter += 1
result
end
end
def mutex
@__counter_mutex ||= Mutex.new
end
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems