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// Wrapper of C-language FILE struct -*- C++ -*-
// Copyright (C) 2000, 2001 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 <libioP.h>
namespace std
{
// __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_type* __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>::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_type* __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() { 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
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