43 lines
1.3 KiB
Ruby
43 lines
1.3 KiB
Ruby
require 'concurrent/configuration'
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module Concurrent
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# @!visibility private
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module Options
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# Get the requested `Executor` based on the values set in the options hash.
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#
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# @param [Hash] opts the options defining the requested executor
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# @option opts [Executor] :executor when set use the given `Executor` instance.
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# Three special values are also supported: `:fast` returns the global fast executor,
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# `:io` returns the global io executor, and `:immediate` returns a new
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# `ImmediateExecutor` object.
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#
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# @return [Executor, nil] the requested thread pool, or nil when no option specified
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#
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# @!visibility private
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def self.executor_from_options(opts = {}) # :nodoc:
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if identifier = opts.fetch(:executor, nil)
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executor(identifier)
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else
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nil
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end
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end
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def self.executor(executor_identifier)
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case executor_identifier
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when :fast
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Concurrent.global_fast_executor
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when :io
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Concurrent.global_io_executor
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when :immediate
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Concurrent.global_immediate_executor
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when Concurrent::ExecutorService
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executor_identifier
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else
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raise ArgumentError, "executor not recognized by '#{executor_identifier}'"
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end
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end
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end
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end
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