Module timer 

Kernel timer module.

This module provides the kernel timer functionality, which is responsible for managing the system timer and scheduling tasks based on time intervals.

Structs

KernelTimer

SoftwareTimer

Software timer structure

Constants

TICK_INTERVAL_US

Statics

KERNEL_TIMER 🔒

SOFTWARE_TIMER_HEAP 🔒

TICK_COUNT 🔒

TIMER_ACTIVE_FLAGS 🔒

TIMER_ID_COUNTER 🔒

Traits

TimerHandler

Trait for timer expiration callback

Functions

add_timer

Add a new software timer. Returns timer id.

cancel_timer

Cancel a timer by id (O(1) operation - just marks as inactive)

check_software_timers 🔒

Call this from tick() to check and fire expired timers

get_kernel_timer

get_tick

Get the current tick count (monotonic, since boot)

get_time_ns

get_time_us

is_timer_active 🔒

Check if a timer is active (used by check_software_timers)

ms_to_ticks

Convert milliseconds to ticks

ns_to_ticks

Convert nanoseconds to ticks

tick

Increment the global tick counter. Call this from the timer interrupt handler.

ticks_to_ms

Convert ticks to milliseconds

ticks_to_ns

Convert ticks to nanoseconds

ticks_to_us

Convert ticks to microseconds

us_to_ticks

Convert microseconds to ticks