mirror of
https://git.proxmox.com/git/grub2
synced 2025-10-31 13:55:51 +00:00
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
|
|
* PUPA -- Preliminary Universal Programming Architecture for GRUB
|
|
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
|
|
*
|
|
* PUPA is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with PUPA; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef PUPA_FILE_HEADER
|
|
#define PUPA_FILE_HEADER 1
|
|
|
|
#include <pupa/types.h>
|
|
#include <pupa/err.h>
|
|
#include <pupa/device.h>
|
|
#include <pupa/fs.h>
|
|
|
|
/* File description. */
|
|
struct pupa_file
|
|
{
|
|
/* The underlying device. */
|
|
pupa_device_t device;
|
|
|
|
/* The underlying filesystem. */
|
|
pupa_fs_t fs;
|
|
|
|
/* The current offset. */
|
|
pupa_ssize_t offset;
|
|
|
|
/* The file size. */
|
|
pupa_ssize_t size;
|
|
|
|
/* Filesystem-specific data. */
|
|
void *data;
|
|
|
|
/* This is called when a sector is read. Used only for a disk device. */
|
|
void (*read_hook) (unsigned long sector, unsigned offset, unsigned length);
|
|
};
|
|
typedef struct pupa_file *pupa_file_t;
|
|
|
|
/* Get a device name from NAME. */
|
|
char *EXPORT_FUNC(pupa_file_get_device_name) (const char *name);
|
|
|
|
pupa_file_t EXPORT_FUNC(pupa_file_open) (const char *name);
|
|
pupa_ssize_t EXPORT_FUNC(pupa_file_read) (pupa_file_t file, char *buf,
|
|
pupa_ssize_t len);
|
|
pupa_ssize_t EXPORT_FUNC(pupa_file_seek) (pupa_file_t file,
|
|
pupa_ssize_t offset);
|
|
pupa_err_t EXPORT_FUNC(pupa_file_close) (pupa_file_t file);
|
|
|
|
static inline pupa_ssize_t
|
|
pupa_file_size (const pupa_file_t file)
|
|
{
|
|
return file->size;
|
|
}
|
|
|
|
static inline pupa_ssize_t
|
|
pupa_file_tell (const pupa_file_t file)
|
|
{
|
|
return file->offset;
|
|
}
|
|
|
|
#endif /* ! PUPA_FILE_HEADER */
|