Class AtomicDouble

Various atomic operations for data type accessible as extension methods.

Inheritance

Object

AtomicDouble

Namespace: DotNext.Threading

Assembly: DotNext.dll

Syntax

public static class AtomicDouble : object

Remarks

Methods exposed by this class provide volatile read/write of the field even if it is not declared as volatile field.

Methods

AccumulateAndGet(ref Double, Double, Func<Double, Double, Double>)

Atomically updates the current value with the results of applying the given function to the current and given values, returning the updated value.

Declaration

public static double AccumulateAndGet(this ref double value, double x, Func<double, double, double> accumulator)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	x	Accumulator operand.
DotNext.Func<Double, Double, Double>	accumulator	A side-effect-free function of two arguments

Returns

Type	Description
Double	The updated value.

Remarks

The function is applied with the current value as its first argument, and the given update as the second argument.

AccumulateAndGet(ref Double, Double, ValueFunc<Double, Double, Double>)

Atomically updates the current value with the results of applying the given function to the current and given values, returning the updated value.

Declaration

public static double AccumulateAndGet(this ref double value, double x, in ValueFunc<double, double, double> accumulator)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	x	Accumulator operand.
ValueFunc<Double, Double, Double>	accumulator	A side-effect-free function of two arguments

Returns

Type	Description
Double	The updated value.

Remarks

The function is applied with the current value as its first argument, and the given update as the second argument.

AccumulateAndGet(Double[], Int64, Double, Func<Double, Double, Double>)

Atomically updates the array element with the results of applying the given function to the array element and given values, returning the updated value.

Declaration

public static double AccumulateAndGet(this double[] array, long index, double x, Func<double, double, double> accumulator)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	x	Accumulator operand.
DotNext.Func<Double, Double, Double>	accumulator	A side-effect-free function of two arguments.

Returns

Type	Description
Double	The updated value.

Remarks

The function is applied with the array element as its first argument, and the given update as the second argument.

AccumulateAndGet(Double[], Int64, Double, ValueFunc<Double, Double, Double>)

Atomically updates the array element with the results of applying the given function to the array element and given values, returning the updated value.

Declaration

public static double AccumulateAndGet(this double[] array, long index, double x, in ValueFunc<double, double, double> accumulator)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	x	Accumulator operand.
ValueFunc<Double, Double, Double>	accumulator	A side-effect-free function of two arguments.

Returns

Type	Description
Double	The updated value.

Remarks

The function is applied with the array element as its first argument, and the given update as the second argument.

Add(ref Double, Double)

Adds two 64-bit floating-point numbers and replaces referenced storage with the sum, as an atomic operation.

Declaration

public static double Add(this ref double value, double operand)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	operand	The value to be added to the currently stored integer.

Returns

Type	Description
Double	Result of sum operation.

Add(Double[], Int64, Double)

Adds two 64-bit integers and replaces array element with the sum, as an atomic operation.

Declaration

public static double Add(this double[] array, long index, double operand)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	operand	The value to be added to the currently stored integer.

Returns

Type	Description
Double	Result of sum operation.

CompareAndSet(ref Double, Double, Double)

Atomically sets referenced value to the given updated value if the current value == the expected value.

Declaration

public static bool CompareAndSet(this ref double value, double expected, double update)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	expected	The expected value.
Double	update	The new value.

Returns

Type	Description
Boolean	true if successful. false return indicates that the actual value was not equal to the expected value.

CompareAndSet(Double[], Int64, Double, Double)

Atomically sets array element to the given updated value if the array element == the expected value.

Declaration

public static bool CompareAndSet(this double[] array, long index, double expected, double update)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	expected	The expected value.
Double	update	The new value.

Returns

Type	Description
Boolean	true if successful. false return indicates that the actual value was not equal to the expected value.

CompareExchange(Double[], Int64, Double, Double)

Atomically sets array element to the given updated value if the array element == the expected value.

Declaration

public static double CompareExchange(this double[] array, long index, double update, double comparand)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	update	The new value.
Double	comparand	The expected value.

Returns

Type	Description
Double	The original value of the array element.

DecrementAndGet(ref Double)

Atomically decrements by one the current value.

Declaration

public static double DecrementAndGet(this ref double value)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.

Returns

Type	Description
Double	Decremented value.

DecrementAndGet(Double[], Int64)

Atomically decrements the array element by one.

Declaration

public static double DecrementAndGet(this double[] array, long index)

Parameters

Type	Name	Description
Double[]	array	The array to write into.
Int64	index	The index of the array element to decrement atomically.

Returns

Type	Description
Double	Decremented array element.

GetAndAccumulate(ref Double, Double, Func<Double, Double, Double>)

Atomically updates the current value with the results of applying the given function to the current and given values, returning the original value.

Declaration

public static double GetAndAccumulate(this ref double value, double x, Func<double, double, double> accumulator)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	x	Accumulator operand.
DotNext.Func<Double, Double, Double>	accumulator	A side-effect-free function of two arguments

Returns

Type	Description
Double	The original value.

Remarks

The function is applied with the current value as its first argument, and the given update as the second argument.

GetAndAccumulate(ref Double, Double, ValueFunc<Double, Double, Double>)

Atomically updates the current value with the results of applying the given function to the current and given values, returning the original value.

Declaration

public static double GetAndAccumulate(this ref double value, double x, in ValueFunc<double, double, double> accumulator)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	x	Accumulator operand.
ValueFunc<Double, Double, Double>	accumulator	A side-effect-free function of two arguments

Returns

Type	Description
Double	The original value.

Remarks

The function is applied with the current value as its first argument, and the given update as the second argument.

GetAndAccumulate(Double[], Int64, Double, Func<Double, Double, Double>)

Atomically updates the array element with the results of applying the given function to the array element and given values, returning the original value.

Declaration

public static double GetAndAccumulate(this double[] array, long index, double x, Func<double, double, double> accumulator)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	x	Accumulator operand.
DotNext.Func<Double, Double, Double>	accumulator	A side-effect-free function of two arguments.

Returns

Type	Description
Double	The original value of the array element.

Remarks

The function is applied with the array element as its first argument, and the given update as the second argument.

GetAndAccumulate(Double[], Int64, Double, ValueFunc<Double, Double, Double>)

Atomically updates the array element with the results of applying the given function to the array element and given values, returning the original value.

Declaration

public static double GetAndAccumulate(this double[] array, long index, double x, in ValueFunc<double, double, double> accumulator)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
Double	x	Accumulator operand.
ValueFunc<Double, Double, Double>	accumulator	A side-effect-free function of two arguments.

Returns

Type	Description
Double	The original value of the array element.

Remarks

The function is applied with the array element as its first argument, and the given update as the second argument.

GetAndSet(ref Double, Double)

Modifies referenced value atomically.

Declaration

public static double GetAndSet(this ref double value, double update)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	update	A new value to be stored into managed pointer.

Returns

Type	Description
Double	Original value before modification.

GetAndSet(Double[], Int64, Double)

Modifies the array element atomically.

Declaration

public static double GetAndSet(this double[] array, long index, double update)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of array element to be modified.
Double	update	A new value to be stored as array element.

Returns

Type	Description
Double	Original array element before modification.

GetAndUpdate(ref Double, Func<Double, Double>)

Atomically updates the stored value with the results of applying the given function, returning the original value.

Declaration

public static double GetAndUpdate(this ref double value, Func<double, double> updater)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
DotNext.Func<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The original value.

GetAndUpdate(ref Double, ValueFunc<Double, Double>)

Atomically updates the stored value with the results of applying the given function, returning the original value.

Declaration

public static double GetAndUpdate(this ref double value, in ValueFunc<double, double> updater)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
ValueFunc<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The original value.

GetAndUpdate(Double[], Int64, Func<Double, Double>)

Atomically updates the array element with the results of applying the given function, returning the original value.

Declaration

public static double GetAndUpdate(this double[] array, long index, Func<double, double> updater)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
DotNext.Func<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The original value of the array element.

GetAndUpdate(Double[], Int64, ValueFunc<Double, Double>)

Atomically updates the array element with the results of applying the given function, returning the original value.

Declaration

public static double GetAndUpdate(this double[] array, long index, in ValueFunc<double, double> updater)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
ValueFunc<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The original value of the array element.

IncrementAndGet(ref Double)

Atomically increments by one referenced value.

Declaration

public static double IncrementAndGet(this ref double value)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.

Returns

Type	Description
Double	Incremented value.

IncrementAndGet(Double[], Int64)

Atomically increments the array element by one.

Declaration

public static double IncrementAndGet(this double[] array, long index)

Parameters

Type	Name	Description
Double[]	array	The array to write into.
Int64	index	The index of the element to increment atomically.

Returns

Type	Description
Double	Incremented array element.

SetAndGet(ref Double, Double)

Modifies value atomically.

Declaration

public static double SetAndGet(this ref double value, double update)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
Double	update	A new value to be stored into managed pointer.

Returns

Type	Description
Double	A new value passed as argument.

SetAndGet(Double[], Int64, Double)

Modifies the array element atomically.

Declaration

public static double SetAndGet(this double[] array, long index, double update)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of array element to be modified.
Double	update	A new value to be stored as array element.

Returns

Type	Description
Double	The array element after modification.

UpdateAndGet(ref Double, Func<Double, Double>)

Atomically updates the stored value with the results of applying the given function, returning the updated value.

Declaration

public static double UpdateAndGet(this ref double value, Func<double, double> updater)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
DotNext.Func<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The updated value.

UpdateAndGet(ref Double, ValueFunc<Double, Double>)

Atomically updates the stored value with the results of applying the given function, returning the updated value.

Declaration

public static double UpdateAndGet(this ref double value, in ValueFunc<double, double> updater)

Parameters

Type	Name	Description
Double	value	Reference to a value to be modified.
ValueFunc<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The updated value.

UpdateAndGet(Double[], Int64, Func<Double, Double>)

Atomically updates the array element with the results of applying the given function, returning the updated value.

Declaration

public static double UpdateAndGet(this double[] array, long index, Func<double, double> updater)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
DotNext.Func<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The updated value.

UpdateAndGet(Double[], Int64, ValueFunc<Double, Double>)

Atomically updates the array element with the results of applying the given function, returning the updated value.

Declaration

public static double UpdateAndGet(this double[] array, long index, in ValueFunc<double, double> updater)

Parameters

Type	Name	Description
Double[]	array	The array to be modified.
Int64	index	The index of the array element to be modified.
ValueFunc<Double, Double>	updater	A side-effect-free function

Returns

Type	Description
Double	The updated value.

VolatileRead(ref Double)

Reads the value of the specified field. On systems that require it, inserts a memory barrier that prevents the processor from reordering memory operations as follows: If a read or write appears after this method in the code, the processor cannot move it before this method.

Declaration

public static double VolatileRead(this ref double value)

Parameters

Type	Name	Description
Double	value	The field to read.

Returns

Type	Description
Double	The value that was read. This value is the latest written by any processor in the computer, regardless of the number of processors or the state of processor cache.

VolatileRead(Double[], Int64)

Performs volatile read of the array element.

Declaration

public static double VolatileRead(this double[] array, long index)

Parameters

Type	Name	Description
Double[]	array	The array to read from.
Int64	index	The array element index.

Returns

Type	Description
Double	The array element.

VolatileWrite(ref Double, Double)

Writes the specified value to the specified field. On systems that require it, inserts a memory barrier that prevents the processor from reordering memory operations as follows: If a read or write appears before this method in the code, the processor cannot move it after this method.

Declaration

public static void VolatileWrite(this ref double value, double newValue)

Parameters

Type	Name	Description
Double	value	The field where the value is written.
Double	newValue	The value to write. The value is written immediately so that it is visible to all processors in the computer.

VolatileWrite(Double[], Int64, Double)

Performs volatile write to the array element.

Declaration

public static void VolatileWrite(this double[] array, long index, double value)

Parameters

Type	Name	Description
Double[]	array	The array to write into.
Int64	index	The array element index.
Double	value	The new value of the array element.