fe372028dc
Added llformat_to_utf8 Added LLProcessLauncher::getExecutable() LLStringTableEntry() ctor and dtor definitions moved from .h to .cpp (should be safe)
240 lines
6.7 KiB
C++
240 lines
6.7 KiB
C++
/**
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* @file llfile.h
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* @author Michael Schlachter
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* @date 2006-03-23
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* @brief Declaration of cross-platform POSIX file buffer and c++
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* stream classes.
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*
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* $LicenseInfo:firstyear=2006&license=viewergpl$
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*
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* Copyright (c) 2006-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLFILE_H
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#define LL_LLFILE_H
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/**
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* This class provides a cross platform interface to the filesystem.
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* Attempts to mostly mirror the POSIX style IO functions.
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*/
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typedef FILE LLFILE;
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#include <fstream>
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#ifdef LL_WINDOWS
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#define USE_LLFILESTREAMS 1
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#else
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#define USE_LLFILESTREAMS 0
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#endif
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#include <sys/stat.h>
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#if LL_WINDOWS
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// windows version of stat function and stat data structure are called _stat
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typedef struct _stat llstat;
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#else
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typedef struct stat llstat;
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#endif
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#ifndef S_ISREG
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# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
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#endif
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#ifndef S_ISDIR
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# define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)
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#endif
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#include "llstring.h" // safe char* -> std::string conversion
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class LL_COMMON_API LLFile
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{
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public:
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// All these functions take UTF8 path/filenames.
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static LLFILE* fopen(const std::string& filename,const char* accessmode); /* Flawfinder: ignore */
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static LLFILE* _fsopen(const std::string& filename,const char* accessmode,int sharingFlag);
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static int close(LLFILE * file);
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// perms is a permissions mask like 0777 or 0700. In most cases it will
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// be overridden by the user's umask. It is ignored on Windows.
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static int mkdir(const std::string& filename, int perms = 0700);
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static int rmdir(const std::string& filename);
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static int remove(const std::string& filename);
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static int rename(const std::string& filename,const std::string& newname);
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static int stat(const std::string& filename,llstat* file_status);
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static bool isdir(const std::string& filename);
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static bool isfile(const std::string& filename);
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static LLFILE * _Fiopen(const std::string& filename, std::ios::openmode mode,int); // protection currently unused
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static const char * tmpdir();
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};
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#if USE_LLFILESTREAMS
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class LL_COMMON_API llifstream : public std::basic_istream < char , std::char_traits < char > >
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{
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// input stream associated with a C stream
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public:
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typedef std::basic_ifstream<char,std::char_traits < char > > _Myt;
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typedef std::basic_filebuf<char,std::char_traits< char > > _Myfb;
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typedef std::basic_ios<char,std::char_traits< char > > _Myios;
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llifstream()
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: std::basic_istream<char,std::char_traits< char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false)
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{ // construct unopened
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}
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explicit llifstream(const std::string& _Filename,
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ios_base::openmode _Mode = ios_base::in,
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int _Prot = (int)ios_base::_Openprot);
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explicit llifstream(_Filet *_File)
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: std::basic_istream<char,std::char_traits< char > >(NULL,true),
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_Filebuffer(new _Myfb(_File)),
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_ShouldClose(false)
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{ // construct with specified C stream
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}
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virtual ~llifstream();
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_Myfb *rdbuf() const
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{ // return pointer to file buffer
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return _Filebuffer;
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}
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bool is_open() const;
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void open(const std::string& _Filename, /* Flawfinder: ignore */
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ios_base::openmode _Mode = ios_base::in,
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int _Prot = (int)ios_base::_Openprot);
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void close();
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private:
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_Myfb* _Filebuffer; // the file buffer
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bool _ShouldClose;
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};
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class LL_COMMON_API llofstream : public std::basic_ostream< char , std::char_traits < char > >
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{
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public:
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typedef std::basic_ostream< char , std::char_traits < char > > _Myt;
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typedef std::basic_filebuf< char , std::char_traits < char > > _Myfb;
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typedef std::basic_ios<char,std::char_traits < char > > _Myios;
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llofstream()
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: std::basic_ostream<char,std::char_traits < char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false)
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{ // construct unopened
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}
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explicit llofstream(const std::string& _Filename,
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std::ios_base::openmode _Mode = ios_base::out,
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int _Prot = (int)std::ios_base::_Openprot);
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explicit llofstream(_Filet *_File)
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: std::basic_ostream<char,std::char_traits < char > >(NULL,true),
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_Filebuffer(new _Myfb(_File)),//_File)
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_ShouldClose(false)
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{ // construct with specified C stream
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}
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virtual ~llofstream();
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_Myfb *rdbuf() const
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{ // return pointer to file buffer
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return _Filebuffer;
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}
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bool is_open() const;
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void open(const std::string& _Filename,ios_base::openmode _Mode = ios_base::out,int _Prot = (int)ios_base::_Openprot); /* Flawfinder: ignore */
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void close();
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private:
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_Myfb *_Filebuffer; // the file buffer
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bool _ShouldClose;
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};
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#else
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//Use standard file streams on non windows platforms
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//#define llifstream std::ifstream
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//#define llofstream std::ofstream
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class LL_COMMON_API llifstream : public std::ifstream
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{
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public:
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llifstream() : std::ifstream()
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{
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}
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explicit llifstream(const std::string& _Filename, std::_Ios_Openmode _Mode = in)
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: std::ifstream(_Filename.c_str(), _Mode)
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{
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}
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void open(const std::string& _Filename, std::_Ios_Openmode _Mode = in) /* Flawfinder: ignore */
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{
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std::ifstream::open(_Filename.c_str(), _Mode);
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}
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};
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class LL_COMMON_API llofstream : public std::ofstream
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{
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public:
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llofstream() : std::ofstream()
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{
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}
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explicit llofstream(const std::string& _Filename, std::_Ios_Openmode _Mode = out)
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: std::ofstream(_Filename.c_str(), _Mode)
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{
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}
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void open(const std::string& _Filename, std::_Ios_Openmode _Mode = out) /* Flawfinder: ignore */
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{
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std::ofstream::open(_Filename.c_str(), _Mode);
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}
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};
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#endif
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/**
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* @breif filesize helpers.
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*
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* The file size helpers are not considered particularly efficient,
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* and should only be used for config files and the like -- not in a
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* loop.
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*/
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std::streamsize LL_COMMON_API llifstream_size(llifstream& fstr);
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std::streamsize LL_COMMON_API llofstream_size(llofstream& fstr);
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#endif // not LL_LLFILE_H
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