Class: Concurrent::AtomicBoolean

Inherits:
AtomicBooleanImplementation
  • Object
show all
Defined in:
lib/concurrent/atomic/atomic_boolean.rb

Overview

A boolean value that can be updated atomically. Reads and writes to an atomic boolean and thread-safe and guaranteed to succeed. Reads and writes may block briefly but no explicit locking is required.

Testing with ruby 2.1.2 Testing with Concurrent::MutexAtomicBoolean... 2.790000 0.000000 2.790000 ( 2.791454) Testing with Concurrent::CAtomicBoolean... 0.740000 0.000000 0.740000 ( 0.740206)

Testing with jruby 1.9.3 Testing with Concurrent::MutexAtomicBoolean... 5.240000 2.520000 7.760000 ( 3.683000) Testing with Concurrent::JavaAtomicBoolean... 3.340000 0.010000 3.350000 ( 0.855000)

See Also:

Instance Method Summary (collapse)

Constructor Details

- (undocumented) initialize(initial = false)

Creates a new AtomicBoolean with the given initial value.

Parameters:

  • initial (Boolean) (defaults to: false) —

    the initial value



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end

Instance Method Details

- (Boolean) false?

Is the current value false

Returns:

  • (Boolean) —

    true if the current value is false, else false



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end

- (Boolean) make_false

Explicitly sets the value to false.

Returns:

  • (Boolean) —

    true if value has changed, otherwise false



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end

- (Boolean) make_true

Explicitly sets the value to true.

Returns:

  • (Boolean) —

    true if value has changed, otherwise false



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end

- (String) to_s Also known as: inspect

Returns Short string representation.

Returns:

  • (String) —

    Short string representation.



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 116

def to_s
  format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
end

- (Boolean) true?

Is the current value true

Returns:

  • (Boolean) —

    true if the current value is true, else false



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end

- (Boolean) value

Retrieves the current Boolean value.

Returns:

  • (Boolean) —

    the current value



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end

- (Boolean) value=(value)

Explicitly sets the value.

Parameters:

  • value (Boolean) —

    the new value to be set

Returns:

  • (Boolean) —

    the current value



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# File 'lib/concurrent/atomic/atomic_boolean.rb', line 114

class AtomicBoolean < AtomicBooleanImplementation
  # @return [String] Short string representation.
  def to_s
    format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
  end

  alias_method :inspect, :to_s
end