Module semaphore 

Semaphore syscall handlers.

Provides capability-enforced semaphore operations: create, wait, try_wait, post, close.

Functions

resolve_sem 🔒

sys_sem_close

SYS_SEM_CLOSE: destroy a semaphore.

sys_sem_create

SYS_SEM_CREATE: create a semaphore with an initial count.

sys_sem_post

SYS_SEM_POST: increment the semaphore (wake a waiter).

sys_sem_trywait

SYS_SEM_TRYWAIT: non-blocking decrement.

sys_sem_wait

SYS_SEM_WAIT: decrement the semaphore (blocking if zero).