Module os::task::id

Allocator for pid, task user resource, kernel stack using a simple recycle strategy.

Structs

KSTACK_ALLOCATOR 🔒

Global allocator for kernel stack

KernelStack

Kernel stack for a task

PID_ALLOCATOR 🔒

Glocal allocator for pid

PidHandle

A handle to a pid

RecycleAllocator

Allocator with a simple recycle strategy

TaskUserRes

User Resource for a task

Constants

IDLE_PID

The idle task’s pid is 0

Functions

kernel_stack_position

Return (bottom, top) of a kernel stack in kernel space.

kstack_alloc

Allocate a kernel stack for a task

pid_alloc

Allocate a pid for a process

trap_cx_bottom_from_tid 🔒

Return the bottom addr (low addr) of the trap context for a task

ustack_bottom_from_tid 🔒

Return the bottom addr (high addr) of the user stack for a task