Sha256: 058d211c2a300c8cf2e57513cded6105bda820786e1738d08d079a2669f19be4
Contents?: true
Size: 1.33 KB
Versions: 4
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Stored size: 1.33 KB
Contents
# TimeGate is a time-based latch.
# When intialized and set with a time period, +wait+ can be called to block the current thread's execution
# until the time period has elapsed.
#
# The idea is that once set, the thread can go about doing other work, then at some point
# wait on the gate to ensure that a certain amount of time has passed before continuing.
# This is specifically useful for throttling API calls.
module WDD
module Utilities
class TimeGate
def set seconds
@gate_time = Time.now + seconds
end
# Waits until the gate is opened.
# +block+ - true by default. If false, the method will not block, but will return the amount of time
# left before the gate opens.
# An optional Ruby block can be passed when +block+ is true that will be evaluated
# every 0.2 seconds. If the block evaluates to false, the latch is released and this method returns.
def wait block = true
if block
guard = block_given? ? yield : true
while Time.now < @gate_time && guard do
sleep 0.2
end
else
Time.now < @gate_time
end
end
def initialize
@gate_time = Time.now
end
end
def self.elapsed_time &block
start_time = Time.now
yield
Time.now - start_time
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems