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Diffstat (limited to 'libstdc++-v3/config/io/basic_file_libio.h')
| -rw-r--r-- | libstdc++-v3/config/io/basic_file_libio.h | 528 |
1 files changed, 0 insertions, 528 deletions
diff --git a/libstdc++-v3/config/io/basic_file_libio.h b/libstdc++-v3/config/io/basic_file_libio.h deleted file mode 100644 index 959ecf948d0..00000000000 --- a/libstdc++-v3/config/io/basic_file_libio.h +++ /dev/null @@ -1,528 +0,0 @@ -// Wrapper of C-language FILE struct -*- C++ -*- - -// Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -// -// ISO C++ 14882: 27.8 File-based streams -// - -/** @file basic_file.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -#ifndef _CPP_BASIC_FILE -#define _CPP_BASIC_FILE 1 - -#pragma GCC system_header - -#include <bits/c++config.h> -#include <ios> -#include <libioP.h> - -namespace std -{ - // Ulrich is going to make some detailed comment here, explaining - // all this unpleasantness, providing detailed performance analysis - // as to why we have to do all this lame vtable hacking instead of a - // sane, function-based approach. This verbiage will provide a clear - // and detailed description of the whole object-layout, - // vtable-swapping, sordid history of this hack. - template<typename _CharT> - struct __basic_file_base: public __c_file - { - virtual - ~__basic_file_base() { }; - - virtual int - overflow(int __c = EOF) = 0; - - virtual int - underflow() = 0; - - virtual int - uflow() = 0; - - virtual int - pbackfail(int __c) = 0; - - virtual streamsize - xsputn(const _CharT* __s, streamsize __n) = 0; - - virtual streamsize - xsgetn(_CharT* __s, streamsize __n) = 0; - - virtual streamoff - seekoff(streamoff __off, ios_base::seekdir __way, - ios_base::openmode __mode = ios_base::in | ios_base::out) = 0; - - virtual streamoff - seekpos(streamoff __pos, - ios_base::openmode __mode = ios_base::in | ios_base::out) = 0; - - virtual streambuf* - setbuf(_CharT* __b, int __len) = 0; - - virtual int - sync() = 0; - - virtual int - doallocate() = 0; - - virtual streamsize - sys_read(_CharT* __s, streamsize __n) = 0; - - virtual streamsize - sys_write(const _CharT* __s, streamsize __n) = 0; - - virtual streamoff - sys_seek(streamoff __off, ios_base::seekdir __way) = 0; - - virtual int - sys_close() = 0; - - virtual int - sys_stat(void* __v) = 0; - - virtual int - showmanyc() = 0; - - virtual void - imbue(void* __v) = 0; - }; - - // Some of these member functions are based on libio/filebuf.cc. - // Also note that the order and number of virtual functions has to precisely - // match the order and number in the _IO_jump_t struct defined in libioP.h. - template<typename _CharT> - class __basic_file: public __basic_file_base<_CharT> - { -# ifdef _GLIBCPP_USE_WCHAR_T - __c_wfile _M_wfile; -# endif - - public: - __basic_file(__c_lock* __lock = 0); - - void - _M_open_mode(ios_base::openmode __mode, int& __p_mode, int& __rw_mode, - char* __c_mode); - - // Equivalent to the normal fopen function. - __basic_file* - open(const char* __name, ios_base::openmode __mode, int __prot = 0664); - - // Used for opening the standard streams, cin, cout, cerr, clog, - // and their wide-stream equivalents. Instead of calling open, it - // just sets - // - for libio: __c_file->_fileno and the respective _flags bits - // - for stdio: _M_cfile = __file and some internal flags - // and returns. - __basic_file* - sys_open(__c_file* __file, ios_base::openmode __mode); - - __basic_file* - sys_open(int __fd, ios_base::openmode __mode, bool __del); - - _CharT - sys_getc(); - - _CharT - sys_ungetc(_CharT); - - __basic_file* - close(); - - bool - is_open() const; - - int - fd(); - - // NB: Must match FILE specific jump table starting here--this - // means all virtual functions starting with the dtor must match, - // slot by slot. For glibc-based dystems, this means the _IO_FILE - // as the FILE struct and _IO_jump_t as the jump table. - virtual - ~__basic_file(); // Takes the place of __finish. - - virtual int - overflow(int __c = EOF); - - virtual int - underflow(); - - virtual int - uflow(); - - virtual int - pbackfail(int __c); - - // A complex "write" function that sets all of __c_file's - // pointers and associated data members correctly and manages its - // relation to the external byte sequence. - virtual streamsize - xsputn(const _CharT* __s, streamsize __n); - - // A complex "read" function that sets all of __c_file's - // pointers and associated data members correctly and manages its - // relation to the external byte sequence. - virtual streamsize - xsgetn(_CharT* __s, streamsize __n); - - // A complex "seekoff" function that sets all of __c_file's - // pointers and associated data members correctly and manages its - // relation to the external byte sequence. - virtual streamoff - seekoff(streamoff __off, ios_base::seekdir __way, - ios_base::openmode __mode = ios_base::in | ios_base::out); - - // A complex "seekpos" function that sets all of __c_file's - // pointers and associated data members correctly and manages its - // relation to the external byte sequence. - virtual streamoff - seekpos(streamoff __pos, - ios_base::openmode __mode = ios_base::in | ios_base::out); - - virtual streambuf* - setbuf(_CharT* __b, int __len); - - virtual int - sync(); - - virtual int - doallocate(); - - // A simple read function for the external byte sequence, that - // does no mucking around with or setting of the pointers or flags - // in __c_file. - virtual streamsize - sys_read(_CharT* __s, streamsize __n); - - // A simple write function for the external byte sequence, that - // does no mucking around with or setting of the pointers or flags - // in __c_file. - virtual streamsize - sys_write(const _CharT* __s, streamsize __n); - - // A simple seek function for the external byte sequence, that - // does no mucking around with or setting of the pointers or flags - // in __c_file. - virtual streamoff - sys_seek(streamoff __off, ios_base::seekdir __way); - - virtual int - sys_close(); - - virtual int - sys_stat(void* __v); - - virtual int - showmanyc(); - - virtual void - imbue(void* __v); - }; - - // __basic_file<char> specializations - template<> - __basic_file<char>::__basic_file(__c_lock* __lock); - - template<> - int - __basic_file<char>::overflow(int __c); - - template<> - int - __basic_file<char>::underflow(); - - template<> - int - __basic_file<char>::uflow(); - - template<> - int - __basic_file<char>::pbackfail(int __c); - - template<> - streamsize - __basic_file<char>::xsputn(const char* __s, streamsize __n); - - template<> - streamoff - __basic_file<char>::seekoff(streamoff __off, ios_base::seekdir __way, - ios_base::openmode __mode); - - template<> - streamoff - __basic_file<char>::seekpos(streamoff __pos, ios_base::openmode __mode); - - template<> - streambuf* - __basic_file<char>::setbuf(char* __b, int __len); - - template<> - int - __basic_file<char>::sync(); - - template<> - int - __basic_file<char>::doallocate(); - - // __basic_file<wchar_t> specializations -#ifdef _GLIBCPP_USE_WCHAR_T - template<> - __basic_file<wchar_t>::__basic_file(__c_lock* __lock); - - template<> - int - __basic_file<wchar_t>::overflow(int __c); - - template<> - int - __basic_file<wchar_t>::underflow(); - - template<> - int - __basic_file<wchar_t>::uflow(); - - template<> - int - __basic_file<wchar_t>::pbackfail(int __c); - - template<> - streamsize - __basic_file<wchar_t>::xsputn(const wchar_t* __s, streamsize __n); - - template<> - streamoff - __basic_file<wchar_t>::seekoff(streamoff __off, ios_base::seekdir __way, - ios_base::openmode __mode); - - template<> - streamoff - __basic_file<wchar_t>::seekpos(streamoff __pos, ios_base::openmode __mode); - - template<> - streambuf* - __basic_file<wchar_t>::setbuf(wchar_t* __b, int __len); - - template<> - int - __basic_file<wchar_t>::sync(); - - template<> - int - __basic_file<wchar_t>::doallocate(); -#endif - - template<typename _CharT> - __basic_file<_CharT>::~__basic_file() - { _IO_file_finish(this, 0); } - - template<typename _CharT> - void - __basic_file<_CharT>::_M_open_mode(ios_base::openmode __mode, - int& __p_mode, int& __rw_mode, - char* /*__c_mode*/) - { -#ifdef O_BINARY - bool __testb = __mode & ios_base::binary; -#endif - bool __testi = __mode & ios_base::in; - bool __testo = __mode & ios_base::out; - bool __testt = __mode & ios_base::trunc; - bool __testa = __mode & ios_base::app; - - if (!__testi && __testo && !__testt && !__testa) - { - __p_mode = O_WRONLY | O_TRUNC | O_CREAT; - __rw_mode = _IO_NO_READS; - } - if (!__testi && __testo && !__testt && __testa) - { - __p_mode = O_WRONLY | O_APPEND | O_CREAT; - __rw_mode = _IO_NO_READS | _IO_IS_APPENDING; - } - if (!__testi && __testo && __testt && !__testa) - { - __p_mode = O_WRONLY | O_TRUNC | O_CREAT; - __rw_mode = _IO_NO_READS; - } - if (__testi && !__testo && !__testt && !__testa) - { - __p_mode = O_RDONLY; - __rw_mode = _IO_NO_WRITES; - } - if (__testi && __testo && !__testt && !__testa) - { - __p_mode = O_RDWR; - __rw_mode = 0; - } - if (__testi && __testo && __testt && !__testa) - { - __p_mode = O_RDWR | O_TRUNC | O_CREAT; - __rw_mode = 0; - } -#ifdef O_BINARY - if (__testb) - __p_mode |= O_BINARY; -#endif - } - - template<typename _CharT> - __basic_file<_CharT>* - __basic_file<_CharT>::sys_open(__c_file* __f, - ios_base::openmode __mode) - { - __basic_file* __ret = NULL; - int __fd = fileno(__f); - int __p_mode = 0; - int __rw_mode = _IO_NO_READS + _IO_NO_WRITES; - char __c_mode[4]; - - _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode); - - if (!_IO_file_is_open(this)) - { - _fileno = __fd; - _flags &= ~(_IO_NO_READS + _IO_NO_WRITES); - _flags |= _IO_DELETE_DONT_CLOSE; - _offset = _IO_pos_BAD; - int __mask = _IO_NO_READS + _IO_NO_WRITES + _IO_IS_APPENDING; - _IO_mask_flags(this, __rw_mode, __mask); - } - - return __ret; - } - - template<typename _CharT> - __basic_file<_CharT>* - __basic_file<_CharT>::sys_open(int __fd, ios_base::openmode __mode, - bool __del) - { - __basic_file* __ret = NULL; - int __p_mode = 0; - int __rw_mode = 0; - char __c_mode[4]; - -#if 0 -#error copy from basic_file_stdio.h will make no sense - _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode); - if (!this->is_open() && (_M_cfile = fdopen(__fd, __c_mode))) - { - // Iff __del is true, then close will fclose the fd. - _M_cfile_created = __del; - - if (__fd == 0) - setvbuf(_M_cfile, reinterpret_cast<char*>(NULL), _IONBF, 0); - - __ret = this; - } -#endif - return __ret; - } - - template<typename _CharT> - __basic_file<_CharT>* - __basic_file<_CharT>::open(const char* __name, ios_base::openmode __mode, - int __prot) - { - __basic_file* __ret = NULL; - int __p_mode = 0; - int __rw_mode = _IO_NO_READS + _IO_NO_WRITES; - char __c_mode[4]; - - _M_open_mode(__mode, __p_mode, __rw_mode, __c_mode); - if (!_IO_file_is_open(this)) - { - __c_file* __f; - __f = _IO_file_open(this, __name, __p_mode, __prot, __rw_mode, 0); - __ret = __f ? this: NULL; - } - return __ret; - } - - template<typename _CharT> - bool - __basic_file<_CharT>::is_open() const { return _fileno >= 0; } - - template<typename _CharT> - __basic_file<_CharT>* - __basic_file<_CharT>::close() - { - return _IO_file_close_it(this) ? static_cast<__basic_file*>(NULL) : this; - } - - template<typename _CharT> - streamsize - __basic_file<_CharT>::xsgetn(_CharT* __s, streamsize __n) - { return _IO_file_xsgetn(this, __s, __n); } - - // NB: Unused. - template<typename _CharT> - streamsize - __basic_file<_CharT>::sys_read(_CharT* __s, streamsize __n) - { return _IO_file_read(this, __s, __n); } - - // NB: Unused. - template<typename _CharT> - streamsize - __basic_file<_CharT>::sys_write(const _CharT* __s, streamsize __n) - { return _IO_file_write(this, __s, __n); } - - // NB: Unused. - template<typename _CharT> - streamoff - __basic_file<_CharT>::sys_seek(streamoff __pos, ios_base::seekdir __way) - { return _IO_file_seek(this, __pos, __way); } - - // NB: Unused. - template<typename _CharT> - int - __basic_file<_CharT>::sys_close() - { return _IO_file_close(this); } - - // NB: Unused. - template<typename _CharT> - int - __basic_file<_CharT>::sys_stat(void* __v) - { return _IO_file_stat(this, __v); } - - // NB: Unused. - template<typename _CharT> - int - __basic_file<_CharT>::showmanyc() { return EOF; } - - // NB: Unused. - template<typename _CharT> - void - __basic_file<_CharT>::imbue(void* /*__v*/) { } -} // namespace std - -#endif // _CPP_BASIC_FILE |