std:std.fiber.Fiber

Struct Fiber

Fibers provide support for asynchronous programming.

A Fiber is a lightweight 'thread of execution' that can be used to achieve a form of cooperative multitasking.

A fiber can be in one of 4 states:

• Running. There is only ever one fiber in the running state at a time. This is the fiber returned by Fiber.Current.

• Suspended. A fiber is in the suspended state if it has called Fiber.Suspend. A suspended fiber can only be returned to the running state by some other fiber calling Resume on it.

• Paused. A fiber is in the paused state after it has called Resume on another fiber and that fiber has resumed running. A paused fiber will continue running when the fiber it resumed calls Suspend or exits normally.

• Terminated. The fiber has either returned from i's entry function, or has been explicitly terminated via a call to Terminate.