vnode.h

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#ifndef __VFS__VNODE_H__
#define __VFS__VNODE_H__
 
#include "vfs/dentry.h"
#include "vfs/dev.h"
#include "vfs/filesystem.h"
#include <llist.h>
#include <type.h>
#include <vector.h>
 
enum {
    VNODE_TYPE_FILE = 1,
    VNODE_TYPE_DIR = 2,
    VNODE_TYPE_DEV = 3,
    VNODE_TYPE_CHR = 4,
    VNODE_TYPE_BLK = 5,
    VNODE_TYPE_FIFO = 6,
    VNODE_TYPE_SOCK = 7,
    VNODE_TYPE_LNK = 8
};
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
typedef struct vnode vnode_t;
typedef struct {
    int (*ioctl)(vnode_t* vnode, uint32_t req, void* arg);
    int (*read)(vnode_t* vnode, void* buf, size_t len, size_t offset);
    long (*write)(vnode_t* vnode, void* buf, size_t len, size_t offset);
} vops_file_t;
 
typedef struct {
    int (*readlink)(vnode_t* vnode, char* buf, size_t bufsize);
} vops_lnk_t;
 
 
typedef struct thread thread_t;
typedef struct vops_blk {
    int (*ioctl)(vnode_t* vnode, uint32_t req, void* arg);
    int (*open)(vnode_t* vnode, int op_mode, thread_t* thread);
    int (*read)(vnode_t* vnode, uintptr_t addr, void* buf, size_t count);
    int (*write)(vnode_t* vnode, uintptr_t addr, void* buf, size_t count);
    int (*close)(vnode_t* vnode);
    void* v_data;
} vops_blk_t;
 
typedef uint64_t vnode_id_t;
 
/*
General VNode
*/
struct device_id {
    uint32_t major;
    uint32_t minor;
};
 
struct vnode {
    atomic_t refcount;
    vnode_id_t id;
    uint8_t type;
    size_t size;
    void* ops;
    uint16_t permission;
 
    struct fs_instance* fs_instance;
    cdev_ptr_t mountedhere;
    cdev_ptr_t mount;
 
    union {
        void* vnode_private;
        struct device_id device;
    };
} __attribute__((aligned(64)));
 
typedef struct vnode* vnode_ptr_t;
 
vnode_ptr_t KERNEL_API create_vnode();
void vxFreeVnode(vnode_ptr_t vnode);
 
#ifdef __cplusplus
}
#endif
 
#endif // __VFS__VNODE_H__