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SysFileSystem.hpp    141 lines (127 with data), 6.8 kB

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/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved. */
/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
/* distribution. A copy is also available at the following address: */
/* http://www.ibm.com/developerworks/oss/CPLv1.0.htm */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in */
/* the documentation and/or other materials provided with the distribution. */
/* */
/* Neither the name of Rexx Language Association nor the names */
/* of its contributors may be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/*----------------------------------------------------------------------------*/
/******************************************************************************/
/* REXX Kernel */
/* */
/* System support for FileSystem operations. */
/* */
/******************************************************************************/
#ifndef Included_SysFileSystem
#define Included_SysFileSystem
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <dirent.h>
#if defined(PATH_MAX)
# define MAXIMUM_PATH_LENGTH PATH_MAX + 1
#elif defined(_POSIX_PATH_MAX)
# define MAXIMUM_PATH_LENGTH _POSIX_PATH_MAX + 1
#else
# define MAXIMUM_PATH_LENGTH
#endif
#if defined(FILENAME_MAX)
# define MAXIMUM_FILENAME_LENGTH FILENAME_MAX + 1
#elif defined(_MAX_FNAME)
# define MAXIMUM_FILENAME_LENGTH _MAX_FNAME + 1
#elif defined(_POSIX_NAME_MAX)
# define MAXIMUM_FILENAME_LENGTH _POSIX_NAME_MAX + 1
#else
# define MAXIMUM_FILENAME_LENGTH 256
#endif
#define NAME_BUFFER_LENGTH (MAXIMUM_PATH_LENGTH + MAXIMUM_FILENAME_LENGTH)
class RexxString;
class SysFileSystem
{
public:
enum
{
MaximumPathLength = MAXIMUM_PATH_LENGTH,
MaximumFileNameLength = MAXIMUM_FILENAME_LENGTH,
MaximumFileNameBuffer = MAXIMUM_PATH_LENGTH + MAXIMUM_FILENAME_LENGTH
};
static const char EOF_Marker;
static const char *EOL_Marker; // the end-of-line marker
static const char PathDelimiter; // directory path delimiter
static const char *getTempFileName();
static bool searchFileName(const char * name, char *fullName);
static void qualifyStreamName(const char *unqualifiedName, char *qualifiedName, size_t bufferSize);
static bool fileExists(const char *name);
static bool searchName(const char *name, const char *path, const char *extension, char *resolvedName);
static bool primitiveSearchName(const char *name, const char *path, const char *extension, char *resolvedName);
static bool checkCurrentFile(const char *name, char *resolvedName);
static bool searchPath(const char *name, const char *path, char *resolvedName);
static bool hasExtension(const char *name);
static bool hasDirectory(const char *name);
static bool canonicalizeName(char *name);
static bool normalizePathName(const char *name, char *resolved);
static RexxString *extractDirectory(RexxString *file);
static RexxString *extractExtension(RexxString *file);
static RexxString *extractFile(RexxString *file);
static int deleteFile(const char *name);
static int deleteDirectory(const char *name);
static bool isDirectory(const char *name);
static bool isReadOnly(const char *name);
static bool isWriteOnly(const char *name);
static bool isFile(const char *name);
static bool exists(const char *name);
static int64_t getLastModifiedDate(const char *name);
static int64_t getFileLength(const char *name);
static bool makeDirectory(const char *name);
static bool moveFile(const char *oldName, const char *newName);
static bool isHidden(const char *name);
static bool setLastModifiedDate(const char *name, int64_t time);
static bool setFileReadOnly(const char *name);
static bool isCaseSensitive();
static int getRoots(char *roots);
static const char *getSeparator();
static const char *getPathSeparator();
};
class SysFileIterator
{
public:
SysFileIterator(const char *pattern);
~SysFileIterator();
void close();
bool hasNext();
void next(char *buffer);
protected:
bool completed; // the iteration completed flag
struct dirent *entry;
DIR *handle;
};
#endif