Crate axtask 

ArceOS task management module.

This module provides primitives for task management, including task creation, scheduling, sleeping, termination, etc. The scheduler algorithm is configurable by cargo features.

Cargo Features

• multitask: Enable multi-task support. If it’s enabled, complex task management and scheduling is used, as well as more task-related APIs. Otherwise, only a few APIs with naive implementation is available.
• irq: Interrupts are enabled. If this feature is enabled, timer-based APIs can be used, such as sleep, sleep_until, and [WaitQueue::wait_timeout].
• preempt: Enable preemptive scheduling.
• sched-fifo: Use the FIFO cooperative scheduler. It also enables the multitask feature if it is enabled. This feature is enabled by default, and it can be overriden by other scheduler features.
• sched-rr: Use the Round-robin preemptive scheduler. It also enables the multitask and preempt features if it is enabled.
• sched-cfs: Use the Completely Fair Scheduler. It also enables the the multitask and preempt features if it is enabled.

Functions

sleep

For single-task situation, we just busy wait for the given duration.

sleep_until

For single-task situation, we just busy wait until reaching the given deadline.

yield_now

For single-task situation, we just relax the CPU and wait for incoming interrupts.