os::rtos::thread::priority Struct Reference

Thread priorities. More...

#include <cmsis-plus/rtos/os.h>

Public Types
enum	: priority_t {   none = 0 ,   idle = (1 << range) ,   lowest = (2 << range) ,   low = (2 << range) ,   below_normal = (4 << range) ,   normal = (6 << range) ,   above_normal = (8 << range) ,   high = (10 << range) ,   realtime = (12 << range) ,   highest = (((13 + 1) << range) - 1) ,   isr = (((14 + 1) << range) - 1) ,   error = (((15 + 1) << range) - 1) }
	Thread priorities; intermediate values are also possible. More...

Static Public Attributes
static constexpr uint32_t	range = 4
	Priorities pre-scaler.

Detailed Description

Thread priorities.

The os::rtos::thread::priority definition is a container for priorities not restricted to an enumeration.

Definition at line 281 of file os-thread.h.

Member Data Documentation

range

constexpr uint32_t os::rtos::thread::priority::range = 4

staticconstexpr

Priorities pre-scaler.

Decreasing this value narrows the range of allowed priorities. It is recommended to keep it low to give the scheduler a chance to optimise accesses to the ready list with an array of priorities, which will require some pointers and counters for each priority level.

The default value of 4 gives the full range of 256 priorities; 0 gives 16 priorities, 1 gives 32 priorities, 2 gives 64 priorities, 3 gives 128 priorities.

Definition at line 297 of file os-thread.h.

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The documentation for this struct was generated from the following file:

• os-thread.h