Namespace Akka.Util

Classes

AppVersion

Comparable version information.

The typical convention is to use 3 digit version numbers major.minor.patch, but 1 or two digits are also supported.

If no . is used it is interpreted as a single digit version number or as plain alphanumeric if it couldn't be parsed as a number.

It may also have a qualifier at the end for 2 or 3 digit version numbers such as "1.2-RC1". For 1 digit with qualifier, 1-RC1, it is interpreted as plain alphanumeric.

It has support for https://github.com/dwijnand/sbt-dynver format with + or - separator. The number of commits from the tag is handled as a numeric part. For example 1.0.0+3-73475dce26 is less than 1.0.10+10-ed316bd024 (3 < 10).

AtomicBoolean

Implementation of the java.concurrent.util.AtomicBoolean type.

Uses MemoryBarrier() internally to enforce ordering of writes without any explicit locking. .NET's strong memory on write guarantees might already enforce this ordering, but the addition of the MemoryBarrier guarantees it.

AtomicReference<T>

Implementation of the java.concurrent.util AtomicReference type.

Uses Volatile internally to enforce ordering of writes without any explicit locking. .NET's strong memory on write guarantees might already enforce this ordering, but the addition of the Volatile guarantees it.

BitArrayHelpers

Extension method class to make it easier to work with BitArray instances

ByteHelpers

ConcurrentSet<T>

A thread-safe set implementation using a ConcurrentDictionary<TKey, TValue>.

Either

Static factory methods for creating Either instances.

Either<TA, TB>

Represents a value of one of two possible types (a disjoint union). An instance of Either is either a Left or a Right.

FastLazy<T>

A fast, atomic lazy that only allows a single publish operation to happen, but allows executions to occur concurrently.

Does not cache exceptions. Designed for use with types that are IDisposable or are otherwise considered to be expensive to allocate. Read the full explanation here: https://github.com/Aaronontheweb/FastAtomicLazy#rationale

Index<TKey, TValue>

An implementation of a ConcurrentMultiMap - in CLR that would be something like ConcurrentDictionary<TKey, TValue> where TValue is another IEnumerable<T>.

Add/remove is serialized over the specified key. Reads are fully concurrent.

Left<T>

Represents a standalone left value that can be implicitly converted to an Either.

Left<TA, TB>

Represents the left side of an Either instance.

ListPriorityQueue

Priority queue implemented using a simple list with binary search for inserts. This specific implementation is cheap in terms of memory but weak in terms of performance. See http://visualstudiomagazine.com/articles/2012/11/01/priority-queues-with-c.aspx for original implementation This specific version is adapted for Envelopes only and calculates a priority of envelope.Message

MurmurHash

Murmur3 Hash implementation

Result

Helper methods for creating Result<T> instances.

Right<T>

Represents a standalone right value that can be implicitly converted to an Either.

Right<TA, TB>

Represents the right side of an Either instance.

RuntimeDetector

Used to detect specific .NET runtimes, to make it easier to adjust for platform specific differences.

StableListPriorityQueue

Priority queue implemented using a simple list with binary search for inserts. This specific implementation is cheap in terms of memory but weak in terms of performance. See http://visualstudiomagazine.com/articles/2012/11/01/priority-queues-with-c.aspx for original implementation This specific version is adapted for Envelopes only and calculates a priority of envelope.Message

StandardOutWriter

This class contains methods for thread safe writing to the standard output stream.

StringFormat

Utility methods for safely formatting strings with null values.

Switch

An atomic switch that can be either on or off

ThreadLocalRandom

Create random numbers with Thread-specific seeds.

Borrowed form Jon Skeet's brilliant C# in Depth: http://csharpindepth.com/Articles/Chapter12/Random.aspx

TickTimeTokenBucket

Default implementation of Akka.Util.TokenBucket that uses Ticks as the time source.

Try<T>

Represents either success or failure of some operation

TypeExtensions

Class TypeExtensions.

Vector

Utility class for creating vectors (collections) of elements.

WildcardMatch

Provides wildcard pattern matching extensions for strings.

Structs

Option<T>

Allows tracking of whether a value has be initialized (even with the default value) for both reference and value types. Useful where distinguishing between null (or zero, or false) and uninitialized is significant.

Result<T>

A result type frequently used inside Akka.Streams and elsewhere.

Interfaces

ISurrogate

Interface for surrogate objects that can be converted back to their original form. Surrogates are used to provide serializable versions of objects that might not be directly serializable.

ISurrogated

Used for surrogate serialization.