mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-24 06:18:59 +08:00
9717c75cf1
2000-11-01 Benjamin Kosnik <bkoz@purist.soma.redhat.com> * bits/basic_file.h (_M_open_mode): Change signature, move specializations to.. * config/c_io_libio.cc: ...here. * acinclude.m4 (GLIBCPP_ENABLE_CSTDIO): Add sdtio option, remove wince. * aclocal.m4: Regenerate. * configure: Regenerate. * config/c_io_stdio.h: New file. * config/c_io_stdio.cc: New file. * docs/configopts.html: Modify documentation. From-SVN: r37195
448 lines
12 KiB
C++
448 lines
12 KiB
C++
// 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 <bits/basic_file.h>
|
|
#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
|
|
|
|
// Generic definitions for __basic_file
|
|
template<typename _CharT>
|
|
int
|
|
__basic_file<_CharT>::get_fileno(void)
|
|
{ return _fileno; }
|
|
|
|
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(int __fd, ios_base::openmode __mode)
|
|
{
|
|
__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))
|
|
{
|
|
_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*/) { }
|
|
|
|
// __basic_file<char> definitions
|
|
__basic_file<char>::__basic_file(__c_lock* __lock)
|
|
{
|
|
#ifdef _IO_MTSAFE_IO
|
|
_lock = __lock;
|
|
#endif
|
|
// Don't set the orientation of the stream when initializing.
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
_IO_no_init(this, 0, 0, &_M_wfile, 0);
|
|
#else /* !defined(_GLIBCPP_USE_WCHAR_T) */
|
|
_IO_no_init(this, 0, 0, NULL, 0);
|
|
#endif /* !defined(_GLIBCPP_USE_WCHAR_T) */
|
|
_IO_JUMPS((_IO_FILE_plus *) this) = &_IO_file_jumps;
|
|
_IO_file_init((_IO_FILE_plus*)this);
|
|
}
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<char>::overflow(int __c)
|
|
{ return _IO_file_overflow(this, __c); }
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<char>::underflow()
|
|
{ return _IO_file_underflow(this); }
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<char>::uflow()
|
|
{ return _IO_default_uflow(this); }
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<char>::pbackfail(int __c)
|
|
{ return _IO_default_pbackfail(this, __c); }
|
|
|
|
streamsize
|
|
__basic_file<char>::xsputn(const char* __s, streamsize __n)
|
|
{ return _IO_file_xsputn(this, __s, __n); }
|
|
|
|
streamoff
|
|
__basic_file<char>::seekoff(streamoff __off, ios_base::seekdir __way,
|
|
ios_base::openmode __mode)
|
|
{ return _IO_file_seekoff(this, __off, __way, __mode); }
|
|
|
|
streamoff
|
|
__basic_file<char>::seekpos(streamoff __pos, ios_base::openmode __mode)
|
|
{ return _IO_file_seekoff(this, __pos, ios_base::beg, __mode); }
|
|
|
|
// NB: Unused.
|
|
streambuf*
|
|
__basic_file<char>::setbuf(char* __b, int __len)
|
|
{ return (streambuf*) _IO_file_setbuf(this,__b, __len); }
|
|
|
|
int
|
|
__basic_file<char>::sync()
|
|
{ return _IO_file_sync(this); }
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<char>::doallocate()
|
|
{ return _IO_file_doallocate(this); }
|
|
|
|
// __basic_file<wchar_t> definitions
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
__basic_file<wchar_t>::__basic_file(__c_lock* __lock)
|
|
{
|
|
#ifdef _IO_MTSAFE_IO
|
|
_lock = __lock;
|
|
#endif
|
|
// Don't set the orientation of the stream when initializing.
|
|
_IO_no_init(this, 0, 0, &_M_wfile, &_IO_wfile_jumps);
|
|
_IO_JUMPS((_IO_FILE_plus *) this) = &_IO_wfile_jumps;
|
|
_IO_file_init((_IO_FILE_plus*)this);
|
|
|
|
// In addition, need to allocate the buffer...
|
|
_IO_wdoallocbuf(this);
|
|
// Setup initial positions for this buffer...
|
|
// if (!(_flags & _IO_NO_READS))
|
|
_IO_wsetg(this, _wide_data->_IO_buf_base, _wide_data->_IO_buf_base,
|
|
_wide_data->_IO_buf_base);
|
|
// if (!(_flags & _IO_NO_WRITES))
|
|
_IO_wsetp(this, _wide_data->_IO_buf_base, _wide_data->_IO_buf_base);
|
|
|
|
// Setup codecvt bits...
|
|
_codecvt = &__c_libio_codecvt;
|
|
|
|
// Do the same for narrow bits...
|
|
if (_IO_write_base == NULL)
|
|
{
|
|
_IO_doallocbuf(this);
|
|
// if (!(_flags & _IO_NO_READS))
|
|
_IO_setg(this, _IO_buf_base, _IO_buf_base, _IO_buf_base);
|
|
// if (!(_flags & _IO_NO_WRITES))
|
|
_IO_setp(this, _IO_buf_base, _IO_buf_base);
|
|
}
|
|
}
|
|
|
|
int
|
|
__basic_file<wchar_t>::overflow(int __c)
|
|
{ return _IO_wfile_overflow(this, __c); }
|
|
|
|
int
|
|
__basic_file<wchar_t>::underflow()
|
|
{ return _IO_wfile_underflow(this); }
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<wchar_t>::uflow()
|
|
{ return _IO_wdefault_uflow(this); }
|
|
|
|
// NB: Unused.
|
|
int
|
|
__basic_file<wchar_t>::pbackfail(int __c)
|
|
{ return _IO_wdefault_pbackfail(this, __c); }
|
|
|
|
streamsize
|
|
__basic_file<wchar_t>::xsputn(const wchar_t* __s, streamsize __n)
|
|
{ return _IO_wfile_xsputn(this, __s, __n); }
|
|
|
|
streamoff
|
|
__basic_file<wchar_t>::seekoff(streamoff __off, ios_base::seekdir __way,
|
|
ios_base::openmode __mode)
|
|
{ return _IO_wfile_seekoff(this, __off, __way, __mode); }
|
|
|
|
streamoff
|
|
__basic_file<wchar_t>::seekpos(streamoff __pos, ios_base::openmode __mode)
|
|
{ return _IO_wfile_seekoff(this, __pos, ios_base::beg, __mode); }
|
|
|
|
streambuf*
|
|
__basic_file<wchar_t>::setbuf(wchar_t* __b, int __len)
|
|
{ return (streambuf*) _IO_wfile_setbuf(this,__b, __len); }
|
|
|
|
int
|
|
__basic_file<wchar_t>::sync()
|
|
{ return _IO_wfile_sync(this); }
|
|
|
|
int
|
|
__basic_file<wchar_t>::doallocate()
|
|
{ return _IO_wfile_doallocate(this); }
|
|
#endif
|
|
|
|
// Need to instantiate base class here for type-info bits, etc
|
|
template struct __basic_file_base<char>;
|
|
template class __basic_file<char>;
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template struct __basic_file_base<wchar_t>;
|
|
template class __basic_file<wchar_t>;
|
|
#endif
|
|
} // namespace std
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|