Module vgabuf 

Bounded, allocation-free SMP queue between logging and framebuffer rendering. Formatting/rendering never retains a reference to a released queue slot.

Modules

log_queue 🔒

Fixed-storage log queue. Safe publication under SMP and bounded overflow.

Constants

FLUSH_BATCH 🔒

VGABUF_CAPACITY

VGABUF_LINE_LEN

Statics

CONSOLE_TASK_ACTIVE 🔒

QUEUE 🔒

Functions

console_task_active

console_task_main

One render opportunity per timer tick, independent of commands/status I/O.

vgabuf_drain_discard 🔒

vgabuf_flush_all

vgabuf_flush_all_direct 🔒

vgabuf_flush_to_framebuffer

Render a bounded batch. Retrying pending presents also displays the last keyboard echo/log fragment when no subsequent message arrives.

vgabuf_total_dropped

vgabuf_total_written

vgabuf_write

write_line 🔒