Package-level declarations

Primitive: If the fiber has already terminated, then answer right away; otherwise, record the current fiber as a joiner of the specified fiber, and attempt to park.

Primitive: Is the current able to reject an ongoing parse?

Primitive: Create a new atom with the given name that represents a heritable fiber variable.

Primitive: Create a fiber type whose result type is the specified type.

Primitive: Answer the currently running fiber.

Primitive: Schedule a new fiber to execute the specified function with the supplied arguments. The fiber will begin running after at least the specified number of milliseconds have elapsed. Answer the new fiber.

Primitive: Schedule a new fiber to execute the specified function with the supplied arguments. The fiber will begin running after at least the specified number of milliseconds have elapsed. Do not retain a reference to the new fiber; it is created as an orphan fiber.

Primitive: Answer the name of the specified fiber.

Primitive: Answer the result of the specified fiber.

Primitive: Answer the result type of the specified fiber type.

Primitive: Fork a new fiber to execute the specified function with the supplied arguments. Answer the new fiber.

Primitive: Fork a new fiber to execute the specified function with the supplied arguments. Do not retain a reference to the new fiber; it is created as an orphan fiber.

Primitive: Ask another fiber what it's doing. Fail if the fiber's continuation chain is empty (i.e., it is terminated).

Primitive: Get the priority of a fiber.

Primitive: Has the specified fiber produced a result yet?

Primitive: Has the specified fiber terminated for some reason?

Primitive: Does the name refer to a fiber-local variable?

Primitive: Has termination been requested for the current fiber? Answer the current value of the appropriate interrupt flag and simultaneously clear it.

Primitive: Lookup the given name (key) in the variables of the current fiber.

Primitive: Attempt to acquire the permit associated with the current fiber. If the permit is available, then consume it and return immediately. If the permit is not available, then park the current fiber. A fiber suspended in this fashion may be resumed only by calling P_UnparkFiber. A newly unparked fiber should always recheck the basis for its having parked, to see if it should park again. Low-level synchronization mechanisms may require the ability to spuriously unpark in order to ensure correctness.

Primitive: Disassociate the given name (key) from the variables of the current fiber.

Primitive: Request termination of the given fiber. If the fiber is currently parked or asleep, then unpark it.

Primitive: Set the name of the specified fiber.

Primitive: Set the priority of a fiber.

Primitive: Associate the given value with the given name (key) in the variables of the current fiber.

Primitive: Put the current fiber to sleep for at least the specified number of milliseconds. If the sleep time is zero (0), then return immediately. If the sleep time is too big (i.e., greater than the maximum delay supported by the operating system), then sleep forever.

Primitive: Terminate the current fiber.

Primitive: Unpark the specified fiber. If the permit associated with the fiber is available, then simply continue. If the permit is not available, then restore the permit and schedule resumption of the fiber. A newly unparked fiber should always recheck the basis for its having parked, to see if it should park again. Low-level synchronization mechanisms may require the ability to spuriously unpark in order to ensure correctness.

Primitive: Yield the current fiber so that higher priority fibers and senior fibers can run.