diff options
Diffstat (limited to 'indra/llcommon')
| -rwxr-xr-x | indra/llcommon/llerror.cpp | 4 | ||||
| -rwxr-xr-x | indra/llcommon/llfile.cpp | 170 | ||||
| -rwxr-xr-x | indra/llcommon/llfile.h | 191 | ||||
| -rwxr-xr-x | indra/llcommon/llliveappconfig.cpp | 2 | ||||
| -rwxr-xr-x | indra/llcommon/llstring.cpp | 2 |
5 files changed, 345 insertions, 24 deletions
diff --git a/indra/llcommon/llerror.cpp b/indra/llcommon/llerror.cpp index 3cb81b4e47..2100989316 100755 --- a/indra/llcommon/llerror.cpp +++ b/indra/llcommon/llerror.cpp @@ -135,7 +135,7 @@ namespace { } private: - std::ofstream mFile; + llofstream mFile; }; @@ -335,7 +335,7 @@ namespace LLSD configuration; { - std::ifstream file(filename().c_str()); + llifstream file(filename().c_str()); if (file.is_open()) { LLSDSerialize::fromXML(configuration, file); diff --git a/indra/llcommon/llfile.cpp b/indra/llcommon/llfile.cpp index ab432a923d..295c97eac8 100755 --- a/indra/llcommon/llfile.cpp +++ b/indra/llcommon/llfile.cpp @@ -424,26 +424,6 @@ LLFILE * LLFile::_Fiopen(const std::string& filename, /************** llstdio file buffer ********************************/ -//llstdio_filebuf* llstdio_filebuf::open(const char *_Filename, -// ios_base::openmode _Mode) -//{ -//#if LL_WINDOWS -// _Filet *_File; -// if (is_open() || (_File = LLFILE::_Fiopen(_Filename, _Mode)) == 0) -// return (0); // open failed -// -// _Init(_File, _Openfl); -// _Initcvt(&_USE(_Mysb::getloc(), _Cvt)); -// return (this); // open succeeded -//#else -// std::filebuf* _file = std::filebuf::open(_Filename, _Mode); -// if (NULL == _file) return NULL; -// return this; -//#endif -//} - - -// *TODO: Seek the underlying c stream for better cross-platform compatibility? #if !LL_WINDOWS llstdio_filebuf::int_type llstdio_filebuf::overflow(llstdio_filebuf::int_type __c) { @@ -865,3 +845,153 @@ int llstdio_filebuf::sync() } #endif +#if LL_WINDOWS +/************** input file stream ********************************/ + +llifstream::llifstream() : + _M_filebuf(), + std::istream(&_M_filebuf) +{ +} + +// explicit +llifstream::llifstream(const std::string& _Filename, + ios_base::openmode _Mode) : + _M_filebuf(), + std::istream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} + +// explicit +llifstream::llifstream(const char* _Filename, + ios_base::openmode _Mode) : + _M_filebuf(), + std::istream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} + +bool llifstream::is_open() const +{ // test if C stream has been opened + return _M_filebuf.is_open(); +} + +void llifstream::open(const char* _Filename, ios_base::openmode _Mode) +{ // open a C stream with specified mode + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::in) == 0) + { + _Myios::setstate(ios_base::failbit); + } + else + { + _Myios::clear(); + } +} + +void llifstream::close() +{ // close the C stream + if (_M_filebuf.close() == 0) + { + _Myios::setstate(ios_base::failbit); + } +} + + +/************** output file stream ********************************/ + + +llofstream::llofstream() : + _M_filebuf(), + std::ostream(&_M_filebuf) +{ +} + +// explicit +llofstream::llofstream(const std::string& _Filename, + ios_base::openmode _Mode) : + _M_filebuf(), + std::ostream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} + +// explicit +llofstream::llofstream(const char* _Filename, + ios_base::openmode _Mode) : + _M_filebuf(), + std::ostream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} + +bool llofstream::is_open() const +{ // test if C stream has been opened + return _M_filebuf.is_open(); +} + +void llofstream::open(const char* _Filename, ios_base::openmode _Mode) +{ // open a C stream with specified mode + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0) + { + _Myios::setstate(ios_base::failbit); + } + else + { + _Myios::clear(); + } +} + +void llofstream::close() +{ // close the C stream + if (_M_filebuf.close() == 0) + { + _Myios::setstate(ios_base::failbit); + } +} + +/************** helper functions ********************************/ + +std::streamsize llifstream_size(llifstream& ifstr) +{ + if(!ifstr.is_open()) return 0; + std::streampos pos_old = ifstr.tellg(); + ifstr.seekg(0, ios_base::beg); + std::streampos pos_beg = ifstr.tellg(); + ifstr.seekg(0, ios_base::end); + std::streampos pos_end = ifstr.tellg(); + ifstr.seekg(pos_old, ios_base::beg); + return pos_end - pos_beg; +} + +std::streamsize llofstream_size(llofstream& ofstr) +{ + if(!ofstr.is_open()) return 0; + std::streampos pos_old = ofstr.tellp(); + ofstr.seekp(0, ios_base::beg); + std::streampos pos_beg = ofstr.tellp(); + ofstr.seekp(0, ios_base::end); + std::streampos pos_end = ofstr.tellp(); + ofstr.seekp(pos_old, ios_base::beg); + return pos_end - pos_beg; +} + +#endif // LL_WINDOWS diff --git a/indra/llcommon/llfile.h b/indra/llcommon/llfile.h index e310d47325..347c9867aa 100755 --- a/indra/llcommon/llfile.h +++ b/indra/llcommon/llfile.h @@ -192,4 +192,195 @@ protected: #endif }; +#if LL_WINDOWS +/** + * @brief Controlling input for files. + * + * This class supports reading from named files, using the inherited + * functions from std::basic_istream. To control the associated + * sequence, an instance of std::basic_filebuf (or a platform-specific derivative) + * which allows construction using a pre-exisintg file stream buffer. + * We refer to this std::basic_filebuf (or derivative) as @c sb. + */ +class LL_COMMON_API llifstream : public std::istream +{ + // input stream associated with a C stream + public: + // Constructors: + /** + * @brief Default constructor. + * + * Initializes @c sb using its default constructor, and passes + * @c &sb to the base class initializer. Does not open any files + * (you haven't given it a filename to open). + */ + llifstream(); + + /** + * @brief Create an input file stream. + * @param Filename String specifying the filename. + * @param Mode Open file in specified mode (see std::ios_base). + * + * @c ios_base::in is automatically included in @a mode. + */ + explicit llifstream(const std::string& _Filename, + ios_base::openmode _Mode = ios_base::in); + explicit llifstream(const char* _Filename, + ios_base::openmode _Mode = ios_base::in); + + /** + * @brief The destructor does nothing. + * + * The file is closed by the filebuf object, not the formatting + * stream. + */ + virtual ~llifstream() {} + + // Members: + /** + * @brief Accessing the underlying buffer. + * @return The current basic_filebuf buffer. + * + * This hides both signatures of std::basic_ios::rdbuf(). + */ + llstdio_filebuf* rdbuf() const + { return const_cast<llstdio_filebuf*>(&_M_filebuf); } + + /** + * @brief Wrapper to test for an open file. + * @return @c rdbuf()->is_open() + */ + bool is_open() const; + + /** + * @brief Opens an external file. + * @param Filename The name of the file. + * @param Node The open mode flags. + * + * Calls @c llstdio_filebuf::open(s,mode|in). If that function + * fails, @c failbit is set in the stream's error state. + */ + void open(const std::string& _Filename, + ios_base::openmode _Mode = ios_base::in) + { open(_Filename.c_str(), _Mode); } + void open(const char* _Filename, + ios_base::openmode _Mode = ios_base::in); + + /** + * @brief Close the file. + * + * Calls @c llstdio_filebuf::close(). If that function + * fails, @c failbit is set in the stream's error state. + */ + void close(); + + private: + llstdio_filebuf _M_filebuf; +}; + + +/** + * @brief Controlling output for files. + * + * This class supports writing to named files, using the inherited + * functions from std::basic_ostream. To control the associated + * sequence, an instance of std::basic_filebuf (or a platform-specific derivative) + * which allows construction using a pre-exisintg file stream buffer. + * We refer to this std::basic_filebuf (or derivative) as @c sb. +*/ +class LL_COMMON_API llofstream : public std::ostream +{ + public: + // Constructors: + /** + * @brief Default constructor. + * + * Initializes @c sb using its default constructor, and passes + * @c &sb to the base class initializer. Does not open any files + * (you haven't given it a filename to open). + */ + llofstream(); + + /** + * @brief Create an output file stream. + * @param Filename String specifying the filename. + * @param Mode Open file in specified mode (see std::ios_base). + * + * @c ios_base::out|ios_base::trunc is automatically included in + * @a mode. + */ + explicit llofstream(const std::string& _Filename, + ios_base::openmode _Mode = ios_base::out|ios_base::trunc); + explicit llofstream(const char* _Filename, + ios_base::openmode _Mode = ios_base::out|ios_base::trunc); + + /** + * @brief The destructor does nothing. + * + * The file is closed by the filebuf object, not the formatting + * stream. + */ + virtual ~llofstream() {} + + // Members: + /** + * @brief Accessing the underlying buffer. + * @return The current basic_filebuf buffer. + * + * This hides both signatures of std::basic_ios::rdbuf(). + */ + llstdio_filebuf* rdbuf() const + { return const_cast<llstdio_filebuf*>(&_M_filebuf); } + + /** + * @brief Wrapper to test for an open file. + * @return @c rdbuf()->is_open() + */ + bool is_open() const; + + /** + * @brief Opens an external file. + * @param Filename The name of the file. + * @param Node The open mode flags. + * + * Calls @c llstdio_filebuf::open(s,mode|out). If that function + * fails, @c failbit is set in the stream's error state. + */ + void open(const std::string& _Filename, + ios_base::openmode _Mode = ios_base::out|ios_base::trunc) + { open(_Filename.c_str(), _Mode); } + void open(const char* _Filename, + ios_base::openmode _Mode = ios_base::out|ios_base::trunc); + + /** + * @brief Close the file. + * + * Calls @c llstdio_filebuf::close(). If that function + * fails, @c failbit is set in the stream's error state. + */ + void close(); + + private: + llstdio_filebuf _M_filebuf; +}; + + +/** + * @breif filesize helpers. + * + * The file size helpers are not considered particularly efficient, + * and should only be used for config files and the like -- not in a + * loop. + */ +std::streamsize LL_COMMON_API llifstream_size(llifstream& fstr); +std::streamsize LL_COMMON_API llofstream_size(llofstream& fstr); + +#else // ! LL_WINDOWS + +// on non-windows, llifstream and llofstream are just mapped directly to the std:: equivalents +typedef std::ifstream llifstream; +typedef std::ofstream llofstream; + +#endif // LL_WINDOWS or ! LL_WINDOWS + #endif // not LL_LLFILE_H diff --git a/indra/llcommon/llliveappconfig.cpp b/indra/llcommon/llliveappconfig.cpp index f955194009..a9b1cdf4f6 100755 --- a/indra/llcommon/llliveappconfig.cpp +++ b/indra/llcommon/llliveappconfig.cpp @@ -49,7 +49,7 @@ bool LLLiveAppConfig::loadFile() { LL_INFOS() << "LLLiveAppConfig::loadFile(): reading from " << filename() << LL_ENDL; - std::ifstream file(filename().c_str()); + llifstream file(filename().c_str()); LLSD config; if (file.is_open()) { diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp index 227f81e88f..f3b8999883 100755 --- a/indra/llcommon/llstring.cpp +++ b/indra/llcommon/llstring.cpp @@ -107,7 +107,7 @@ bool iswindividual(llwchar elem) bool _read_file_into_string(std::string& str, const std::string& filename) { - std::ifstream ifs(filename.c_str(), std::ifstream::binary); + llifstream ifs(filename.c_str(), llifstream::binary); if (!ifs.is_open()) { LL_INFOS() << "Unable to open file " << filename << LL_ENDL; |