// -*- C++ -*-
/* This file is part of
* ======================================================
- *
+ *
* LyX, The Document Processor
- *
+ *
* Copyright 1995 Matthias Ettrich
- * Copyright 1995-2000 The LyX Team.
+ * Copyright 1995-2001 The LyX Team.
*
* ====================================================== */
#include <ctime>
-#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
-
+#include <unistd.h>
+#include <boost/utility.hpp>
#include "LString.h"
/** Use objects of this class to get information about files.
+ *
+ * Users must make sure to check fi.isOK() before any operations
+ * requiring the file to exist such as fi.isDir()
*/
-class FileInfo {
+class FileInfo : boost::noncopyable {
public:
///
FileInfo();
-
+
/** Get information about file.
If link is true, the information is about the link itself, not
the file that is obtained by tracing the links. */
/// Query a new file
FileInfo & newFile(string const & path, bool link = false);
-
+
/// Query a new file descriptor
- FileInfo & newFile(int fildes);
-
+ FileInfo & newFile(int fildes);
+
/// Returns a character describing file type (ls -F)
char const * typeIndicator() const;
-
+
/// File protection mode
mode_t getMode() const;
/// Constructs standard mode string (ls style)
void modeString(char * szString) const;
-
+
/// returns a letter describing a file type (ls style)
char typeLetter() const;
-
+
/// builds 'rwx' string describing file access rights
- void flagRWX(unsigned short i, char * szString) const;
-
+ void flagRWX(mode_t i, char * szString) const;
+
/// updates mode string to match suid/sgid/sticky bits
void setSticky(char * szString) const;
-
+
///
time_t getModificationTime() const;
-
+
///
time_t getAccessTime() const;
-
+
///
time_t getStatusChangeTime() const;
-
+
/// Total file size in bytes
off_t getSize() const;
-
+
/// Number of hard links
nlink_t getNumberOfLinks() const;
-
+
/// User ID of owner
uid_t getUid() const;
-
+
/// Group ID of owner
gid_t getGid() const;
-
+
/// Is the file information correct? Did the query succeed?
bool isOK() const;
-
+
/// Permission flags
enum perm_test {
/// test for read permission
eperm = F_OK
};
/// Test whether the current user has a given set of permissions
- bool access(int p);
+ bool access(int p) const;
/// Is the file writable for the current user?
- bool writable() { return access(FileInfo::wperm); }
+ bool writable() const { return access(FileInfo::wperm); }
/// Is the file readable for the current user?
- bool readable() { return access(FileInfo::rperm); }
+ bool readable() const { return access(FileInfo::rperm); }
/// Is the file executable for the current user?
- bool executable() { return access(FileInfo::xperm); }
+ bool executable() const { return access(FileInfo::xperm); }
/// Does the file exist?
- bool exist() { return access(FileInfo::eperm); }
+ bool exist() const { return access(FileInfo::eperm); }
///
bool isLink() const;
///