f2e230ca88
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22578 a95241bf-73f2-0310-859d-f6bbb57e9c96
123 lines
3.0 KiB
C++
123 lines
3.0 KiB
C++
/*
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* Copyright 2002-2007, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _NODE_H
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#define _NODE_H
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#include <Statable.h>
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class BDirectory;
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class BEntry;
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class BString;
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struct entry_ref;
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//! Reference structure to a particular vnode on a particular device
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/*! <b>node_ref</b> - A node reference.
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@author <a href="mailto:tylerdauwalder@users.sf.net">Tyler Dauwalder</a>
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@author Be Inc.
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@version 0.0.0
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*/
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struct node_ref {
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node_ref();
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node_ref(const node_ref &ref);
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bool operator==(const node_ref &ref) const;
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bool operator!=(const node_ref &ref) const;
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node_ref& operator=(const node_ref &ref);
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dev_t device;
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ino_t node;
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};
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//! A BNode represents a chunk of data in the filesystem.
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/*! The BNode class provides an interface for manipulating the data and attributes
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belonging to filesystem entries. The BNode is unaware of the name that refers
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to it in the filesystem (i.e. its entry); a BNode is solely concerned with
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the entry's data and attributes.
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@author <a href='mailto:tylerdauwalder@users.sf.net'>Tyler Dauwalder</a>
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@version 0.0.0
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*/
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class BNode : public BStatable {
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public:
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BNode();
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BNode(const entry_ref *ref);
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BNode(const BEntry *entry);
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BNode(const char *path);
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BNode(const BDirectory *dir, const char *path);
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BNode(const BNode &node);
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virtual ~BNode();
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status_t InitCheck() const;
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virtual status_t GetStat(struct stat *st) const;
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status_t SetTo(const entry_ref *ref);
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status_t SetTo(const BEntry *entry);
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status_t SetTo(const char *path);
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status_t SetTo(const BDirectory *dir, const char *path);
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void Unset();
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status_t Lock();
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status_t Unlock();
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status_t Sync();
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ssize_t WriteAttr(const char *name, type_code type, off_t offset,
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const void *buffer, size_t len);
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ssize_t ReadAttr(const char *name, type_code type, off_t offset,
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void *buffer, size_t len) const;
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status_t RemoveAttr(const char *name);
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status_t RenameAttr(const char *oldname, const char *newname);
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status_t GetAttrInfo(const char *name, struct attr_info *info) const;
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status_t GetNextAttrName(char *buffer);
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status_t RewindAttrs();
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status_t WriteAttrString(const char *name, const BString *data);
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status_t ReadAttrString(const char *name, BString *result) const;
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BNode& operator=(const BNode &node);
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bool operator==(const BNode &node) const;
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bool operator!=(const BNode &node) const;
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int Dup(); // This should be "const" but R5's is not... Ugggh.
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private:
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friend class BFile;
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friend class BDirectory;
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friend class BSymLink;
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virtual void _RudeNode1();
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virtual void _RudeNode2();
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virtual void _RudeNode3();
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virtual void _RudeNode4();
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virtual void _RudeNode5();
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virtual void _RudeNode6();
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uint32 rudeData[4];
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private:
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status_t set_fd(int fd);
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virtual void close_fd();
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void set_status(status_t newStatus);
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status_t _SetTo(int fd, const char *path, bool traverse);
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status_t _SetTo(const entry_ref *ref, bool traverse);
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virtual status_t set_stat(struct stat &st, uint32 what);
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int fFd;
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int fAttrFd;
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status_t fCStatus;
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status_t InitAttrDir();
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};
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#endif // _NODE_H
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