Sha256: 475c708f75403427c02c07f8530bd248f15997e69457303de5bab890a690a96b
Contents?: true
Size: 532 Bytes
Versions: 136
Compression:
Stored size: 532 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(name=nil)
name ||= :global
mutex.synchronize do
@__counter ||= Hash.new(1)
result = @__counter[name]
@__counter[name] += 1
result
end
end
def mutex
@__counter_mutex ||= Mutex.new
end
end
end
end
Version data entries
136 entries across 129 versions & 19 rubygems