fops.h

/*
 * Copyright (C) 2012-2019, Samsung Electronics Co., Ltd.
 *
 * UDF fops declarations
 */

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include <compiler.h>
#include <core/dirent.h>
#include <core/driver.h>
#include <core/stat.h>
#include <core/tbt.h>
#include <fcntl.h>
#include <sys/mman.h>

typedef int (*fops_open)(struct drv_info *filp, const char *subpath, ...);
typedef int (*fops_close)(struct drv_info *filp);
typedef int (*fops_truncate)(struct drv_info *filp, unsigned int size);
typedef ssize_t (*fops_read)(struct drv_info *filp, void *buf, size_t len);
typedef ssize_t (*fops_write)(struct drv_info *filp, void *buf, size_t len);
typedef int (*fops_ioctl)(struct drv_info *filp, int cmd, unsigned long data);
typedef int (*fops_stat)(struct drv_info *filp, struct stat *buf);
typedef void *(
    *fops_mmap)(struct drv_info *filp, void *addr, size_t len, int prot, int flags, off_t offset);
typedef int (*fops_unlink)(struct drv_info *filp, const char *subpath);
typedef int (*fops_lseek)(struct drv_info *filp, int offset, int whence);
typedef int (*fops_fsync)(struct drv_info *filp);
typedef int (*fops_rename)(struct drv_info *filp, const char *subpath, const char *newpath);
typedef int (*fops_rmdir)(struct drv_info *filp, const char *subpath);
typedef int (*fops_mkdir)(struct drv_info *filp, const char *subpath, mode_t mode);
typedef int (*fops_readdir)(struct drv_info *filp, struct dirent *dirent);
typedef int (*fops_lookup)(struct drv_info *filp, const char *subpath);
typedef int (*fops_probe)(struct drv_info *filp, mode_t mode);
struct fops {
    /* callbacks common for both UDF and legacy driver */
    fops_open open;         
    fops_close close;       
    fops_truncate truncate; 
    fops_read read;         
    fops_write write;       
    fops_ioctl ioctl;       
    fops_stat stat;         
    fops_mmap mmap;         
    fops_lseek lseek;       
    fops_fsync fsync;       
    /* UDF-only callbacks */
    fops_unlink unlink;     
    fops_rename rename;     
    fops_rmdir rmdir;       
    fops_mkdir mkdir;       
    fops_readdir readdir;   
    fops_lookup lookup;     
    /* callbacks used only by legacy driver */
    fops_probe probe;       
};

struct usr_drv_info {
    const struct fops *fops; 
    int handle;              
    void *priv;              
};

#ifdef __cplusplus
}
#endif