#pragma once
// ke_semaphore.h - counting semaphore
#include <stdint.h>
#include <ob_object.h>
#include <ke_spinlock.h>
#include <ke_list.h>
#include <ke_status.h>

typedef struct SEMAPHORE {
    OBJECT       Header;
    SPINLOCK     Lock;
    int32_t      Count;
    int32_t      MaxCount;
    LIST_ENTRY   WaitList;
} SEMAPHORE;

KSTATUS SemaphoreCreate(int32_t initial, int32_t max, SEMAPHORE **out);
KSTATUS KeWaitSemaphore(SEMAPHORE* semaphore);
KSTATUS KeTrySemaphore(SEMAPHORE* semaphore);
void    KeSignalSemaphore(SEMAPHORE* semaphore);