diff options
Diffstat (limited to 'indra/llcommon/llfile.h')
| -rw-r--r--[-rwxr-xr-x] | indra/llcommon/llfile.h | 213 |
1 files changed, 11 insertions, 202 deletions
diff --git a/indra/llcommon/llfile.h b/indra/llcommon/llfile.h index 347c9867aa..3e25228aeb 100755..100644 --- a/indra/llcommon/llfile.h +++ b/indra/llcommon/llfile.h @@ -45,7 +45,6 @@ typedef FILE LLFILE; typedef struct _stat llstat; #else typedef struct stat llstat; -#include <ext/stdio_filebuf.h> #include <bits/postypes.h> #endif @@ -86,123 +85,16 @@ public: static const char * tmpdir(); }; -/** - * @brief Provides a layer of compatibility for C/POSIX. - * - * This is taken from both the GNU __gnu_cxx::stdio_filebuf extension and - * VC's basic_filebuf implementation. - * This file buffer provides extensions for working with standard C FILE*'s - * and POSIX file descriptors for platforms that support this. -*/ -namespace -{ -#if LL_WINDOWS -typedef std::filebuf _Myfb; -#else -typedef __gnu_cxx::stdio_filebuf< char > _Myfb; -typedef std::__c_file _Filet; -#endif /* LL_WINDOWS */ -} - -class LL_COMMON_API llstdio_filebuf : public _Myfb -{ -public: - /** - * deferred initialization / destruction - */ - llstdio_filebuf() : _Myfb() {} - virtual ~llstdio_filebuf() {} - - /** - * @param f An open @c FILE*. - * @param mode Same meaning as in a standard filebuf. - * @param size Optimal or preferred size of internal buffer, in chars. - * Defaults to system's @c BUFSIZ. - * - * This constructor associates a file stream buffer with an open - * C @c FILE*. The @c FILE* will not be automatically closed when the - * stdio_filebuf is closed/destroyed. - */ - llstdio_filebuf(_Filet* __f, std::ios_base::openmode __mode, - //size_t __size = static_cast<size_t>(BUFSIZ)) : - size_t __size = static_cast<size_t>(1)) : -#if LL_WINDOWS - _Myfb(__f) {} -#else - _Myfb(__f, __mode, __size) {} -#endif - - /** - * @brief Opens an external file. - * @param s The name of the file. - * @param mode The open mode flags. - * @return @c this on success, NULL on failure - * - * If a file is already open, this function immediately fails. - * Otherwise it tries to open the file named @a s using the flags - * given in @a mode. - */ - //llstdio_filebuf* open(const char *_Filename, - // std::ios_base::openmode _Mode); - - /** - * @param fd An open file descriptor. - * @param mode Same meaning as in a standard filebuf. - * @param size Optimal or preferred size of internal buffer, in chars. - * - * This constructor associates a file stream buffer with an open - * POSIX file descriptor. The file descriptor will be automatically - * closed when the stdio_filebuf is closed/destroyed. - */ -#if !LL_WINDOWS - llstdio_filebuf(int __fd, std::ios_base::openmode __mode, - //size_t __size = static_cast<size_t>(BUFSIZ)) : - size_t __size = static_cast<size_t>(1)) : - _Myfb(__fd, __mode, __size) {} -#endif - -// *TODO: Seek the underlying c stream for better cross-platform compatibility? -#if !LL_WINDOWS -protected: - /** underflow() and uflow() functions are called to get the next - * character from the real input source when the buffer is empty. - * Buffered input uses underflow() - */ - /*virtual*/ int_type underflow(); - - /* Convert internal byte sequence to external, char-based - * sequence via codecvt. - */ - bool _convert_to_external(char_type*, std::streamsize); - - /** The overflow() function is called to transfer characters to the - * real output destination when the buffer is full. A call to - * overflow(c) outputs the contents of the buffer plus the - * character c. - * Consume some sequence of the characters in the pending sequence. - */ - /*virtual*/ int_type overflow(int_type __c = traits_type::eof()); - - /** sync() flushes the underlying @c FILE* stream. - */ - /*virtual*/ int sync(); - - std::streamsize xsgetn(char_type*, std::streamsize); - std::streamsize xsputn(const char_type*, std::streamsize); -#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. + * functions from std::ifstream. The only added value is that our constructor + * Does The Right Thing when passed a non-ASCII pathname. Sadly, that isn't + * true of Microsoft's std::ifstream. */ -class LL_COMMON_API llifstream : public std::istream +class LL_COMMON_API llifstream : public std::ifstream { // input stream associated with a C stream public: @@ -225,32 +117,6 @@ class LL_COMMON_API llifstream : public std::istream */ 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. @@ -261,34 +127,19 @@ class LL_COMMON_API llifstream : public std::istream * 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. + * This class supports writing to named files, using the inherited functions + * from std::ofstream. The only added value is that our constructor Does The + * Right Thing when passed a non-ASCII pathname. Sadly, that isn't true of + * Microsoft's std::ofstream. */ -class LL_COMMON_API llofstream : public std::ostream +class LL_COMMON_API llofstream : public std::ofstream { public: // Constructors: @@ -306,62 +157,20 @@ class LL_COMMON_API llofstream : public std::ostream * @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. + * @c ios_base::out 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. + * @c ios_base::out is automatically included in @a mode. */ 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; }; |