Sha256: 927f73f595db358192748cfcb0752cefb85154ff7b541986219ebeaf7d11bd50
Contents?: true
Size: 1008 Bytes
Versions: 49
Compression:
Stored size: 1008 Bytes
Contents
# frozen-string-literal: true
require "thread"
class Roda
# A thread safe cache class, offering only #[] and #[]= methods,
# each protected by a mutex.
class RodaCache
# Create a new thread safe cache.
def initialize
@mutex = Mutex.new
@hash = {}
end
# Make getting value from underlying hash thread safe.
def [](key)
@mutex.synchronize{@hash[key]}
end
# Make setting value in underlying hash thread safe.
def []=(key, value)
@mutex.synchronize{@hash[key] = value}
end
# Return the frozen internal hash. The internal hash can then
# be accessed directly since it is frozen and there are no
# thread safety issues.
def freeze
@hash.freeze
end
private
# Create a copy of the cache with a separate mutex.
def initialize_copy(other)
@mutex = Mutex.new
other.instance_variable_get(:@mutex).synchronize do
@hash = other.instance_variable_get(:@hash).dup
end
end
end
end
Version data entries
49 entries across 49 versions & 1 rubygems