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