pegasus/src/Pegasus/Common/FileSystem.h - diff

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Diff for /pegasus/src/Pegasus/Common/FileSystem.h between version 1.19 and 1.52

version 1.19, 2002/06/01 00:56:31

version 1.52, 2008/11/11 19:16:00

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//%/////////////////////////////////////////////////////////////////////////////

//%2006////////////////////////////////////////////////////////////////////////

// The Open Group, Tivoli Systems

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

// IBM Corp.; EMC Corporation, The Open Group.

// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; Symantec Corporation; The Open Group.

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

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//==============================================================================

// Author: Mike Brasher (mbrasher@bmc.com)

// Modified By:

//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_FileSystem_h

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#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/String.h>

#include <Pegasus/Common/Array.h>

#include <Pegasus/Common/Buffer.h>

#include <Pegasus/Common/Exception.h>

#include <Pegasus/Common/ArrayInternal.h>

#include <Pegasus/Common/InternalException.h>

#include <Pegasus/Common/System.h>

#include <Pegasus/Common/Linkage.h>

#include <fstream>

#include <cstdio>

#include <Pegasus/Common/Buffer.h>

PEGASUS_NAMESPACE_BEGIN

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static Boolean removeFileNoCase(const String& path);

/** Produces an array of filenames that match the given pattern under

the directory given by path. The pattern is limited to asterisks

only. Examples: "*.txt", "hello*world.c". Returns true on success.

Return false if the base diretory does not exist or cannot be

accessed.

static Boolean glob(

const String& path,

const String& pattern,

Array<String>& filenames);

/** Loads contents of the file into the array. Note that the file is

opened using binary mode (newline sequences are not expanded to

carriage-return-line-feed sequences on Windows).

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@exception CannotOpenFile

static void loadFileToMemory(

Array<Sint8>& array,

Buffer& array,

const String& fileName);

/** Determines whether two files have exactly the same content.

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const String& path1,

const String& path2);

/** Renames a file.

/**

@param oldPath old name of file.

Renames a file. If the new name refers to an existing file, it is

@param newPath new name of file.

removed and replaced with the renamed file. The rename operation is

@return true on success.

performed atomically.

@param oldPath A String containing the name of the file to rename.

@param newPath A String containing the name to which to rename the file.

@return A Boolean indicating whether the rename operation was

successful.

static Boolean renameFile(

const String& oldPath,

const String& newPath);

/** Same as rename file except that the case of the file referred to

by oldPath is ignored.

by oldPath is ignored. The case resolution of the oldPath is

performed prior to the atomic rename operation.

static Boolean renameFileNoCase(

const String& oldPath,

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static void translateSlashes(String& path);

/** Get an absolute path from an absolute directory and a relative or

absolute file name. If the file name is fully specified, it is

returned unchanged. Otherwise, the specified directory is prepended

to the file name.

static String getAbsolutePath(const char* path, const String& filename);

/** Return the just the filename to the file name into base.

static String extractFileName(const String& base);

/** Return the just the path to the file name into path.

static String extractFilePath(const String& path);

/** Changes file permissions on the given file.

@param path path of the file.

@param mode the bit-wise inclusive OR of the values for the

desired permissions.

@return true on success, false on error and errno is set appropriately.

static Boolean changeFilePermissions(const String& path, mode_t mode);

/**

Return OS path specific delimiter.

@return delimiter specific to the platform

static String getPathDelimiter();

/**

Returns the absolute pathname for the specified filename.

@param paths directories seperated by an OS specific delimiter to search

@param filename filename to search for in the paths

@return the full absolute pathname to the found filename or an empty

string on failure.

static String getAbsoluteFileName(

const String& paths,

const String& filename);

/**

Convert a library name to its corresponding file name by adding the

appropriate prefix and suffix.

@param libraryName The name of the library for which to build the file

name.

@return The file name corresponding to the specified library name.

static String buildLibraryFileName(const String &libraryName);

/**

Returns the platform-specific file name extension for dynamic

libraries.

@return the platform-specific file name extension for dynamic

libraries.

static String getDynamicLibraryExtension();

static Boolean changeFileOwner(

const String& fileName,

const String& userName);

/**

Flushes the data from the iostream buffers to the OS buffers and

then flushes the data from the OS buffers to the disk.

This will avoid the possible data loss in case of an OS crash when

OS filesystem commit directory-level changes immediately while

file-level changes remain cached (e.g. HP-UX).

@param fstream. The iostream that we want to flush data.

static void syncWithDirectoryUpdates(PEGASUS_STD(fstream)&);

private:

FileSystem() { }

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return FileSystem::getFileSize(realPath, size);

}

inline String FileSystem::getAbsolutePath(

const char* path,

const String& filename)

{

String absolutePath;

if (filename != String::EMPTY)

{

if (!System::is_absolute_path(filename.getCString()) && path && path[0])

{

absolutePath.append(path);

absolutePath.append('/');

}

absolutePath.append(filename);

}

translateSlashes(absolutePath);

return absolutePath;

}

inline Boolean Open(PEGASUS_STD(ifstream)& is, const String& path)

{

char* tmpPath = path.allocateCString();

is.open(path.getCString());

is.open(tmpPath);

delete [] tmpPath;

return !!is;

}

inline Boolean Open(PEGASUS_STD(ofstream)& os, const String& path)

{

char* tmpPath = path.allocateCString();

os.open(path.getCString());

os.open(tmpPath);

delete [] tmpPath;

return !!os;

}

inline Boolean OpenAppend(PEGASUS_STD(ofstream)& os, const String& path)

{

char* tmpPath = path.allocateCString();

os.open(path.getCString(), PEGASUS_STD(ios::app));

os.open(tmpPath, PEGASUS_STD(ios::app));

delete [] tmpPath;

return !!os;

}

inline String FileSystem::getPathDelimiter()

{

#if defined(PEGASUS_OS_TYPE_WINDOWS)

return String(";");

#else

return String(":");

#endif

}

/** Get the next line from the input file.

PEGASUS_COMMON_LINKAGE Boolean GetLine(PEGASUS_STD(istream)& is, String& line);

PEGASUS_COMMON_LINKAGE Boolean GetLine(PEGASUS_STD(istream)& is, Buffer& line);

inline Boolean GetLine(PEGASUS_STD(istream)& is, String& line)

{

Buffer lineBuffer;

Boolean result = GetLine(is, lineBuffer);

line = String(lineBuffer.getData(), lineBuffer.size());

return result;

}

PEGASUS_NAMESPACE_END

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