haiku/headers/os/kernel/fs_device.h

87 lines
2.7 KiB
C
Raw Normal View History

//----------------------------------------------------------------------
// This software is part of the OpenBeOS distribution and is covered
// by the OpenBeOS license.
//---------------------------------------------------------------------
/*!
\file fs_devices.h
*/
#ifndef _FS_DEVICE_H
#define _FS_DEVICE_H
#include <Drivers.h>
#include <OS.h>
#include <SupportDefs.h>
// session flags
enum {
B_DATA_SESSION = 0x01, /* data session */
B_VIRTUAL_SESSION = 0x02, /* e.g. hard disk */
};
typedef struct session_info {
off_t offset; /* offset from start of device (in bytes) */
off_t size; /* size (in bytes) */
int32 logical_block_size; /* logical block size (in bytes) */
int32 index; /* session index */
uint32 flags; /* session flags */
} session_info;
// partition flags
enum {
B_HIDDEN_PARTITION = 0x01, /* non-file system partition */
B_VIRTUAL_PARTITION = 0x02, /* e.g. floppy */
B_EMPTY_PARTITION = 0x04, /* empty partition, implies
B_HIDDEN_PARTITION */
};
typedef struct extended_partition_info {
partition_info info;
uint32 flags; /* partition flags */
char partition_name[B_FILE_NAME_LENGTH];
char partition_type[B_FILE_NAME_LENGTH];
char file_system_short_name[B_FILE_NAME_LENGTH]; /* "", if hidden */
char file_system_long_name[B_FILE_NAME_LENGTH]; /* or unknown FS */
char volume_name[B_FILE_NAME_LENGTH]; /* "", if hidden */
char mounted_at[B_FILE_NAME_LENGTH]; /* "", if not mounted */
//< better B_PATH_NAME_LENGTH?
uint32 partition_code;
uint32 file_system_flags; /* same as fs_info::flags */
} extended_partition_info;
#ifdef __cplusplus
extern "C" {
#endif
// getting infos
status_t get_nth_session_info(int deviceFD, int32 index,
session_info *sessionInfo);
status_t get_nth_partition_info(int deviceFD, int32 sessionIndex,
int32 partitionIndex,
extended_partition_info *partitionInfo,
char *partitionMapName);
// partitioning
status_t get_partitioning_parameters(int deviceFD, int32 sessionIndex,
const char *identifier, char *buffer,
size_t bufferSize, size_t *actualSize);
status_t partition_session(int deviceFD, int32 sessionIndex,
const char *identifier, const char *parameters);
// initialization
status_t get_fs_initialization_parameters(int deviceFD, int32 sessionIndex,
int32 partitionIndex,
const char *fileSystem, char *buffer,
size_t bufferSize,
size_t *actualSize);
// TODO: Move to <unistd.h>. It fits better there.
status_t initialize_volume(const char *where, const char *fileSystem,
const char *volumeName, const char *parameters);
#ifdef __cplusplus
}
#endif
#endif _FS_DEVICE_H