#pragma once
// ob_object.h - executive object model
// Every resource the kernel tracks is a typed, reference-counted OBJECT.
// The OBJECT header must be the first member of any derived struct.
#include <stdint.h>
#include <stddef.h>
#include <ke_status.h>

typedef enum OBJECT_TYPE {
    ObjectTypeProcess   = 1,
    ObjectTypeThread    = 2,
    ObjectTypeMutex     = 3,
    ObjectTypeSemaphore = 4,
    ObjectTypeEvent     = 5,
    ObjectTypeQueue     = 6,
    ObjectTypeFile      = 7,
    ObjectTypeDir       = 8,
} OBJECT_TYPE;

typedef struct OBJECT {
    OBJECT_TYPE   Type;
    volatile long RefCount; // interlocked; long = 4 bytes on MSVC x64
    void        (*Destroy)(struct OBJECT* self);
} OBJECT;

// Increment the reference count. Call whenever ownership is shared.
void    ObReferenceObject(OBJECT* object);

// Decrement. Calls Destroy() and frees the object when count reaches zero.
void    ObDereferenceObject(OBJECT* object);

// Allocate a zeroed object of the given size from kernel pool.
// Caller must fill Type and Destroy before publishing the pointer.
OBJECT* ObAllocateObject(OBJECT_TYPE type, size_t size);