module OpenCensus::Context
The Context
module provides per-thread storage.
Constants
- THREAD_KEY
Thread local storage key under which all
OpenCensus
context data is stored.@private
Public Class Methods
get(key)
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Return a value from the context. Returns nil if no value is set.
@param [String, Symbol] key The name of the context value to fetch. @return [Object, nil] The fetched value.
# File lib/opencensus/context.rb, line 45 def get key storage[key] end
reset!()
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Clears all values from the context.
# File lib/opencensus/context.rb, line 62 def reset! Thread.current[THREAD_KEY] = {} end
set(key, value)
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Store a value in the context.
@param [String, Symbol] key The name of the context value to store. @param [Object] value The value associated with the key.
# File lib/opencensus/context.rb, line 35 def set key, value storage[key] = value end
unset(key)
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Unsets a value from the context.
@param [String, Symbol] key The name of the context value to unset. @return [Object, nil] The value of the context value just unset.
# File lib/opencensus/context.rb, line 55 def unset key storage.delete key end
Private Class Methods
storage()
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# File lib/opencensus/context.rb, line 68 def storage Thread.current[THREAD_KEY] ||= {} end