0,0 → 1,329 |
/* Copyright (C) 2004 Garrett A. Kajmowicz |
|
This file is part of the uClibc++ Library. |
|
This library is free software; you can redistribute it and/or |
modify it under the terms of the GNU Lesser General Public |
License as published by the Free Software Foundation; either |
version 2.1 of the License, 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 |
Lesser General Public License for more details. |
|
You should have received a copy of the GNU Lesser General Public |
License along with this library; if not, write to the Free Software |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
*/ |
|
#include <basic_definitions> |
#include <locale> |
#include <string> |
#include <iosfwd> |
|
#ifndef HEADER_STD_STREAMBUF |
#define HEADER_STD_STREAMBUF 1 |
|
#include <ios> |
|
#pragma GCC visibility push(default) |
|
namespace std{ |
|
template <class charT, class traits> class _UCXXEXPORT basic_streambuf{ |
public: |
#ifdef __UCLIBCXX_SUPPORT_CDIR__ |
friend ios_base::Init::Init(); |
#endif |
// Types: |
typedef charT char_type; |
typedef typename traits::int_type int_type; |
typedef typename traits::pos_type pos_type; |
typedef typename traits::off_type off_type; |
typedef traits traits_type; |
|
virtual ~basic_streambuf(); |
|
locale pubimbue(const locale &loc); |
|
locale getloc() const{ |
return myLocale; |
} |
|
basic_streambuf<char_type,traits>* pubsetbuf(char_type* s, streamsize n){ |
return setbuf(s,n); |
} |
pos_type pubseekoff(off_type off, |
typename ios_base::seekdir way, |
ios_base::openmode which = ios_base::in | |
ios_base::out |
) |
{ |
return seekoff(off,way,which); |
} |
pos_type pubseekpos(pos_type sp, ios_base::openmode which = ios_base::in | ios_base::out){ |
return seekpos(sp,which); |
} |
int pubsync(){ |
return sync(); |
} |
|
streamsize in_avail(); |
|
int_type snextc(); |
|
int_type sbumpc(); |
|
int_type sgetc(); |
|
streamsize sgetn(char_type* s, streamsize n){ |
return xsgetn(s,n); |
} |
|
int_type sputbackc(char_type c); |
|
int_type sungetc(); |
|
int_type sputc(char_type c); |
|
streamsize sputn(const char_type* s, streamsize n){ |
if(openedFor & ios_base::app){ |
seekoff(0, ios_base::end, ios_base::out); |
} |
return xsputn(s, n); |
} |
|
protected: |
locale myLocale; |
//Pointers for the "get" buffers |
charT * mgbeg; |
charT * mgnext; |
charT * mgend; |
|
//Pointers for the "put" buffers |
charT * mpbeg; |
charT * mpnext; |
charT * mpend; |
|
//In the event of null buffers Lets us know what the buffer is opened for |
ios_base::openmode openedFor; |
|
basic_streambuf(); |
|
basic_streambuf(const basic_streambuf<char, char_traits<char> > &) |
: myLocale(), |
mgbeg(0), mgnext(0), mgend(0), mpbeg(0), mpnext(0), mpend(0), |
openedFor(0) |
{ } |
basic_streambuf<char, char_traits<char> > & operator=(const basic_streambuf<char, char_traits<char> > &){ |
return *this; |
} |
|
char_type* eback() const{ |
return mgbeg; |
} |
char_type* gptr() const{ |
return mgnext; |
} |
char_type* egptr() const{ |
return mgend; |
} |
void gbump(int n){ |
mgnext+=n; |
} |
void setg(char_type* gbeg, char_type* gnext, char_type* gend){ |
mgbeg = gbeg; |
mgnext = gnext; |
mgend = gend; |
} |
|
char_type* pbase() const{ |
return mpbeg; |
} |
char_type* pptr() const{ |
return mpnext; |
} |
char_type* epptr() const{ |
return mpend; |
} |
void pbump(int n){ |
mpnext+=n; |
} |
void setp(char_type* pbeg, char_type* pend){ |
mpbeg = pbeg; |
mpnext = pbeg; |
mpend = pend; |
} |
|
virtual void imbue(const locale &loc){ |
myLocale = loc; |
} |
|
//Virtual functions which we will not implement |
|
virtual basic_streambuf<char_type,traits>* setbuf(char_type* , streamsize){ |
return 0; |
} |
virtual pos_type seekoff(off_type , ios_base::seekdir, |
ios_base::openmode = ios_base::in | ios_base::out) |
{ |
return 0; |
} |
virtual pos_type seekpos(pos_type , ios_base::openmode = ios_base::in | ios_base::out){ |
return 0; |
} |
virtual int sync(){ |
return 0; |
} |
|
virtual int showmanyc(){ |
return 0; |
} |
virtual streamsize xsgetn(char_type* , streamsize ){ |
return 0; |
} |
virtual int_type underflow(){ |
return traits_type::eof(); |
} |
virtual int_type uflow(){ |
int_type ret = underflow(); |
if (!traits_type::eq_int_type(ret, traits_type::eof())) |
gbump(1); |
return ret; |
} |
|
virtual int_type pbackfail(int_type c = traits::eof()){ |
return c; |
} |
virtual streamsize xsputn(const char_type* c, streamsize n){ |
//This function is designed to be replaced by subclasses |
for(streamsize i = 0; i< n; ++i){ |
if(sputc(c[i]) == traits::eof()){ |
return i; |
} |
} |
return n; |
} |
virtual int_type overflow (int_type c = traits::eof()){ |
return c; |
} |
}; |
|
typedef basic_streambuf<char> streambuf; |
#ifdef __UCLIBCXX_HAS_WCHAR__ |
typedef basic_streambuf<wchar_t> wstreambuf; |
#endif |
|
|
//Definitions put below to allow for easy expansion of code |
|
template <class C, class T> basic_streambuf<C, T>::~basic_streambuf(){ } |
|
template <class C, class T> locale basic_streambuf<C, T>::pubimbue(const locale &loc){ |
locale temp = myLocale; |
myLocale = loc; |
return temp; |
} |
|
template <class C, class T> streamsize basic_streambuf<C, T>::in_avail(){ |
if(mgend !=0 && mgnext !=0){ |
return mgend - mgnext; |
} |
return showmanyc(); |
} |
|
template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sbumpc(){ |
if(mgbeg == 0 || mgnext == mgend){ |
return uflow(); |
} |
int_type retval = T::to_int_type(*gptr()); |
gbump(1); |
return retval; |
} |
|
template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::snextc(){ |
if(sbumpc() == T::eof() ){ |
return T::eof() ; |
} |
return sgetc(); |
} |
|
template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sgetc(){ |
if(mgbeg == 0 || mgnext == mgend){ |
return underflow(); |
} |
return T::to_int_type(*gptr()); |
} |
|
template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sputbackc(char_type c){ |
if(mgbeg == 0 || mgnext == mgbeg || !T::eq(c, gptr()[-1] )){ |
return pbackfail(T::to_int_type(c)); |
} |
gbump(-1); |
return T::to_int_type(*gptr()); |
} |
|
template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sungetc(){ |
if(mgbeg == 0 || mgnext == mgbeg){ |
return ios_base::failbit; |
} |
gbump(-1); |
return T::to_int_type(*gptr()); |
} |
|
template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sputc(char_type c){ |
if(openedFor & ios_base::app){ |
seekoff(0, ios_base::end, ios_base::out); |
} |
if(mpnext < mpend){ |
*mpnext = c; |
++mpnext; |
}else{ |
return overflow( T::to_int_type(c) ); |
} |
return T::to_int_type(c); |
} |
|
template <class C, class T> basic_streambuf<C, T>::basic_streambuf() |
: myLocale(), |
mgbeg(0), mgnext(0), mgend(0), mpbeg(0), mpnext(0), mpend(0), |
openedFor(0) |
{ } |
|
|
|
|
|
|
#ifdef __UCLIBCXX_EXPAND_STREAMBUF_CHAR__ |
#ifndef __UCLIBCXX_COMPILE_STREAMBUF__ |
|
#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
|
template <> _UCXXEXPORT streambuf::basic_streambuf(); |
template <> _UCXXEXPORT streambuf::~basic_streambuf(); |
|
#endif //__UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
|
template <> _UCXXEXPORT locale streambuf::pubimbue(const locale &loc); |
template <> _UCXXEXPORT streamsize streambuf::in_avail(); |
template <> _UCXXEXPORT streambuf::int_type streambuf::sbumpc(); |
template <> _UCXXEXPORT streambuf::int_type streambuf::snextc(); |
template <> _UCXXEXPORT streambuf::int_type streambuf::sgetc(); |
template <> _UCXXEXPORT streambuf::int_type streambuf::sputbackc(char_type c); |
template <> _UCXXEXPORT streambuf::int_type streambuf::sungetc(); |
template <> _UCXXEXPORT streambuf::int_type streambuf::sputc(char_type c); |
|
#endif |
#endif |
|
|
|
|
|
} |
|
#pragma GCC visibility pop |
|
#endif |