* Copyright 2010, Jérôme Duval, korli@users.berlios.de.
* Copyright 2004-2008, Axel Dörfler, axeld@pinc-software.de.
* This file may be used under the terms of the MIT License.
*/
#ifndef ATTRIBUTE_H
#define ATTRIBUTE_H
#include "CachedBlock.h"
#include "Inode.h"
struct attr_cookie {
char name[B_ATTR_NAME_LENGTH];
uint32 type;
int open_mode;
bool create;
};
class Attribute {
public:
Attribute(Inode* inode);
Attribute(Inode* inode, attr_cookie* cookie);
~Attribute();
status_t InitCheck();
status_t CheckAccess(const char* name, int openMode);
status_t Find(const char* name);
status_t Find(int32 index);
status_t GetName(char* name, size_t* _nameLength);
void Put();
status_t Create(const char* name, type_code type,
int openMode, attr_cookie** _cookie);
status_t Open(const char* name, int openMode,
attr_cookie** _cookie);
status_t Stat(struct stat& stat);
status_t Read(attr_cookie* cookie, off_t pos, uint8* buffer,
size_t* _length);
status_t Write(Transaction& transaction, attr_cookie* cookie,
off_t pos, const uint8* buffer,
size_t* _length, bool* _created);
private:
status_t _Truncate();
status_t _Find(const char* name, int32 index);
status_t _FindAttributeBody(const uint8* start, const uint8* end,
const char* name, int32 index, int32 *count,
ext2_xattr_entry** entry);
status_t _FindAttributeBlock(const uint8* start, const uint8* end,
const char* name, int32 index, int32 *count,
ext2_xattr_entry** entry);
status_t _FindAttribute(const uint8* start, const uint8* end,
const char* name, int32 index, int32 *count,
ext2_xattr_entry** entry);
status_t _PrefixedName(ext2_xattr_entry* entry, char* _name,
size_t* _nameLength);
::Volume* fVolume;
CachedBlock fBlock;
Inode* fInode;
ext2_xattr_entry* fBodyEntry;
ext2_xattr_entry* fBlockEntry;
const char* fName;
};
#endif
