spinlock_t Struct Reference

#include <spinlock.h>

Public Attributes
volatile uint16_t	counter

Detailed Description

spinlock_t — FIFO ticket spinlock.

counter layout (16-bit): bits [7:0] = owner — ticket currently being served bits [15:8] = next — next ticket to issue

Free iff owner == next (counter == 0 after SPINLOCK_INIT). Supports at most 256 simultaneous waiters (MAX_CPUS=8 is well within this).

Member Data Documentation

counter

volatile uint16_t spinlock_t::counter

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

• include/miniOS/arch/x86_64/spinlock.h