160 lines
4.3 KiB
Plaintext
160 lines
4.3 KiB
Plaintext
/*
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* Copyright 2002-2013 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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* Authors:
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* Tyler Dauwalder
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* John Scipione, jscipione@gmail.com
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* Ingo Weinhold, bonefish@users.sf.net
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*
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* Corresponds to:
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* headers/os/storage/SymLink.h hrev45306
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* src/kits/storage/SymLink.cpp hrev45306
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*/
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/*!
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\file SymLink.h
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\ingroup storage
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\ingroup libbe
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\brief Provides the BSymLink class.
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*/
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/*!
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\class BSymLink
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\ingroup storage
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\ingroup libbe
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\brief Provides an interface for creating, manipulating, and accessing
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the contents of symbolic links.
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*/
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/*!
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\fn BSymLink::BSymLink()
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\brief Creates an uninitialized BSymLink object.
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*/
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/*!
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\fn BSymLink::BSymLink(const BSymLink &link)
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\brief Creates a copy of the supplied BSymLink object.
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\param link The BSymLink object to be copied.
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*/
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/*!
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\fn BSymLink::BSymLink(const entry_ref *ref)
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\brief Creates a BSymLink object and initializes it to the symbolic link
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referred to by the supplied entry_ref.
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\param ref the entry_ref referring to the symbolic link.
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*/
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/*!
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\fn BSymLink::BSymLink(const BEntry *entry)
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\brief Creates a BSymLink object and initializes it to the symbolic link
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referred to by the supplied BEntry.
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\param entry The BEntry referring to the symbolic link.
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*/
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/*!
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\fn BSymLink::BSymLink(const char *path)
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\brief Creates a BSymLink object and initializes it to the symbolic link
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referred to by the supplied path name.
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\param path The path of the symbolic link.
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*/
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/*!
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\fn BSymLink::BSymLink(const BDirectory *dir, const char *path)
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\brief Creates a BSymLink object and initializes it to the symbolic link
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referred to by the supplied path name relative to the specified
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BDirectory.
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\param dir The base BDirectory.
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\param path The path of the symbolic link relative to \a dir.
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*/
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/*!
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\fn BSymLink::~BSymLink()
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\brief Destroys the object and frees all allocated resources.
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If the BSymLink was properly initialized, the file descriptor of the
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symbolic link is also closed.
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*/
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/*!
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\fn ssize_t BSymLink::ReadLink(char *buffer, size_t size)
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\brief Reads the contents of the symbolic link into \a buffer.
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The string written to the buffer is guaranteed to be \c NULL terminated.
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\param buffer The buffer to read the symlink's contents into.
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\param size The size of \a buffer.
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\return The number of bytes written into the buffer or an error code.
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\retval B_BAD_VALUE \a buf was \c NULL or the object didn't refer to a
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symbolic link.
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\retval B_FILE_ERROR The object was not initialized.
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*/
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/*!
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\fn ssize_t BSymLink::MakeLinkedPath(const char *dirPath, BPath *path)
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\brief Combines a directory path and the contents of this symbolic link to
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form an absolute path.
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\param dirPath The base directory path to combine with the symbolic link.
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\param path The BPath object to be set to the resulting absolute path.
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\return The length of the resulting path name or an error code.
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\retval B_BAD_VALUE \a dirPath or \a path was \c NULL or the object didn't
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refer to a symbolic link.
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\retval B_FILE_ERROR The object was not initialized.
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\retval B_NAME_TOO_LONG The resulting path name was too long to fit.
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*/
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/*!
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\fn ssize_t BSymLink::MakeLinkedPath(const BDirectory *dir, BPath *path)
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\brief Combines a directory path and the contents of this symbolic link to
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form an absolute path.
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\param dir The base BDirectory object to combine with the symbolic link.
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\param path the BPath object to be set to the resulting absolute path.
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\return The length of the resulting path name or an error code.
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\retval B_BAD_VALUE \a dir or \a path was \c NULL or the object didn't
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refer to a symbolic link.
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\retval B_FILE_ERROR The object was not initialized.
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\retval B_NAME_TOO_LONG The resulting path name was too long to fit.
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*/
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/*!
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\fn bool BSymLink::IsAbsolute()
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\brief Returns whether or not the object refers to an absolute path.
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/return \c true if the object is properly initialized and the symbolic
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link refers to an absolute path, \c false otherwise.
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*/
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/*!
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\fn int BSymLink::get_fd() const
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\brief Returns the file descriptor of the BSymLink.
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This method should be used instead of accessing the private \c fFd member
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of the BNode directly.
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\return The object's file descriptor, or -1 if not properly initialized.
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*/
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