// Wrapper of C-language FILE struct -*- C++ -*- // Copyright (C) 2000 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 // #include #include #include // Solaris needs for O_* macros namespace std { __basic_file::__basic_file(__c_lock* __lock) { #ifdef _IO_MTSAFE_IO _lock = __lock; #endif _IO_no_init(this, 0 /* ??? */, -1, 0, 0); _IO_JUMPS(this) = &_IO_file_jumps; _IO_file_init((_IO_FILE_plus*)this); } int __basic_file::get_fileno(void) { return _fileno; } __basic_file::~__basic_file() { _IO_file_finish(this, 0); } void __basic_file::_M_open_mode(ios_base::openmode __mode, int& __p_mode, int& __rw_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 } __basic_file* __basic_file::sys_open(int __fd, ios_base::openmode __mode) { __basic_file* __retval = NULL; int __p_mode = 0; int __rw_mode = _IO_NO_READS + _IO_NO_WRITES; _M_open_mode(__mode, __p_mode, __rw_mode); // _IO_file_attach // sets _IO_DELETE_DONT_CLOSE // clears _IO_NO_READS + _IO_NO_WRITES if (_IO_file_attach(this, __fd) != NULL) { // Set flags appropriately for openmode... int __mask = _IO_NO_READS + _IO_NO_WRITES + _IO_IS_APPENDING; _IO_mask_flags(this, __rw_mode, __mask); } else { _IO_un_link((_IO_FILE_plus*) this); // XXX Extended error checking?? Note that v2 does not even have this. } return __retval; } __basic_file* __basic_file::open(const char* __name, ios_base::openmode __mode, int __prot = 0664) { __basic_file* __retval = NULL; int __p_mode = 0; int __rw_mode = _IO_NO_READS + _IO_NO_WRITES; _M_open_mode(__mode, __p_mode, __rw_mode); if (!_IO_file_is_open(this)) { //#if _G_HAVE_IO_FILE_OPEN __c_file_type* __f; __f = _IO_file_open(this, __name, __p_mode, __prot, __rw_mode, 0); // _flags &= ~_IO_DELETE_DONT_CLOSE; __retval = __f ? this: NULL; } return __retval; } bool __basic_file::is_open() { return _fileno >= 0; } __basic_file* __basic_file::close() { return _IO_file_close_it(this) ? static_cast<__basic_file*>(NULL) : this; } // NB: Unused. int __basic_file::overflow(int __c) { return _IO_file_overflow(this, __c); } // NB: Unused. int __basic_file::underflow() { return _IO_file_underflow(this); } // NB: Unused. int __basic_file::uflow() { return _IO_default_uflow(this); } // NB: Unused. int __basic_file::pbackfail(int __c) { return _IO_default_pbackfail(this, __c); } streamsize __basic_file::xsputn(const char* __s, streamsize __n) { return _IO_file_xsputn(this, __s, __n); } streamsize __basic_file::xsgetn(char* __s, streamsize __n) { return _IO_file_xsgetn(this, __s, __n); } streamoff __basic_file::seekoff(streamoff __off, ios_base::seekdir __way, ios_base::openmode __mode) { return _IO_file_seekoff(this, __off, __way, __mode); } streamoff __basic_file::seekpos(streamoff __pos, ios_base::openmode __mode) { return _IO_file_seekoff(this, __pos, ios_base::beg, __mode); } // NB: Unused. streambuf* __basic_file::setbuf(char* __b, int __len) { return (streambuf*) _IO_file_setbuf(this,__b, __len); } int __basic_file::sync() { return _IO_file_sync(this); } // NB: Unused. int __basic_file::doallocate() { return _IO_file_doallocate(this); } // NB: Unused. streamsize __basic_file::sys_read(char* __s, streamsize __n) { return _IO_file_read(this, __s, __n); } // NB: Unused. streamsize __basic_file::sys_write(const char* __s, streamsize __n) { return _IO_file_write(this, __s, __n); } // NB: Unused. streamoff __basic_file::sys_seek(streamoff __pos, ios_base::seekdir __way) { return _IO_file_seek(this, __pos, __way); } // NB: Unused. int __basic_file::sys_close() { return _IO_file_close(this); } // NB: Unused. int __basic_file::sys_stat(void* __v) { return _IO_file_stat(this, __v); } // NB: Unused. int __basic_file::showmanyc() { return EOF; } // NB: Unused. void __basic_file::imbue(void* /*__v*/) { } } // namespace std