The Tor Browser: build/stlport/src/ios.cpp@6474c204b198 (annotated)

build/stlport/src/ios.cpp@6474c204b198 (annotated)

build/stlport/src/ios.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
  * Copyright (c) 1999
  * Silicon Graphics Computer Systems, Inc.
  *
  * Copyright (c) 1999
  * Boris Fomitchev
  *
  * This material is provided "as is", with absolutely no warranty expressed
  * or implied. Any use is at your own risk.
  *
  * Permission to use or copy this software for any purpose is hereby granted
  * without fee, provided the above notices are retained on all copies.
  * Permission to modify the code and to distribute modified code is granted,
  * provided the above notices are retained, and a notice that the code was
  * modified is included with the above copyright notice.
  *
  */
 #include "stlport_prefix.h"
 #include <algorithm>
 #include <ios>
 #include <locale>
 #include <ostream> // for __get_ostreambuf definition
 #include "aligned_buffer.h"
 _STLP_BEGIN_NAMESPACE
 //----------------------------------------------------------------------
 // ios_base members
 #ifdef _STLP_USE_EXCEPTIONS
 // class ios_base::failure, a subclass of exception.  It's used solely
 // for reporting errors.
 ios_base::failure::failure(const string& s)
   : __Named_exception(s)
 {}
 ios_base::failure::~failure() _STLP_NOTHROW_INHERENTLY {}
 #endif
 #if !defined (_STLP_STATIC_CONST_INIT_BUG) && !defined (_STLP_NO_STATIC_CONST_DEFINITION)
 // Definitions of ios_base's formatting flags.
 const ios_base::fmtflags ios_base::left;
 const ios_base::fmtflags ios_base::right;
 const ios_base::fmtflags ios_base::internal;
 const ios_base::fmtflags ios_base::dec;
 const ios_base::fmtflags ios_base::hex;
 const ios_base::fmtflags ios_base::oct;
 const ios_base::fmtflags ios_base::fixed;
 const ios_base::fmtflags ios_base::scientific;
 const ios_base::fmtflags ios_base::boolalpha;
 const ios_base::fmtflags ios_base::showbase;
 const ios_base::fmtflags ios_base::showpoint;
 const ios_base::fmtflags ios_base::showpos;
 const ios_base::fmtflags ios_base::skipws;
 const ios_base::fmtflags ios_base::unitbuf;
 const ios_base::fmtflags ios_base::uppercase;
 const ios_base::fmtflags ios_base::adjustfield;
 const ios_base::fmtflags ios_base::basefield;
 const ios_base::fmtflags ios_base::floatfield;
 // Definitions of ios_base's state flags.
 const ios_base::iostate ios_base::goodbit;
 const ios_base::iostate ios_base::badbit;
 const ios_base::iostate ios_base::eofbit;
 const ios_base::iostate ios_base::failbit;
 // Definitions of ios_base's openmode flags.
 const ios_base::openmode ios_base::app;
 const ios_base::openmode ios_base::ate;
 const ios_base::openmode ios_base::binary;
 const ios_base::openmode ios_base::in;
 const ios_base::openmode ios_base::out;
 const ios_base::openmode ios_base::trunc;
 // Definitions of ios_base's seekdir flags.
 const ios_base::seekdir ios_base::beg;
 const ios_base::seekdir ios_base::cur;
 const ios_base::seekdir ios_base::end;
 #endif
 // Internal functions used for managing exponentially-growing arrays of
 // POD types.
 // array is a pointer to N elements of type PODType.  Expands the array,
 // if necessary, so that array[index] is meaningful.  All new elements are
 // initialized to zero.  Returns a pointer to the new array, and the new
 // size.
 template <class PODType>
 static pair<PODType*, size_t>
 _Stl_expand_array(PODType* __array, size_t N, int index) {
   if ((int)N < index + 1) {
     size_t new_N = (max)(2 * N, size_t(index + 1));
     PODType* new_array
       = __STATIC_CAST(PODType*,realloc(__array, new_N * sizeof(PODType)));
     if (new_array) {
       fill(new_array + N, new_array + new_N, PODType());
       return pair<PODType*, size_t>(new_array, new_N);
     }
     else
       return pair<PODType*, size_t>(__STATIC_CAST(PODType*,0), 0);
   }
   else
     return pair<PODType*, size_t>(__array, N);
 }
 // array is a pointer to N elements of type PODType.  Allocate a new
 // array of N elements, copying the values from the old array to the new.
 // Return a pointer to the new array.  It is assumed that array is non-null
 // and N is nonzero.
 template <class PODType>
 static PODType* _Stl_copy_array(const PODType* __array, size_t N) {
   PODType* result = __STATIC_CAST(PODType*,malloc(N * sizeof(PODType)));
   if (result)
     copy(__array, __array + N, result);
   return result;
 }
 locale ios_base::imbue(const locale& loc) {
   if (loc != _M_locale) {
     locale previous = _M_locale;
     _M_locale = loc;
     _M_invoke_callbacks(imbue_event);
     return previous;
   }
   else {
     _M_invoke_callbacks(imbue_event);
     return _M_locale;
   }
 }
 int _STLP_CALL ios_base::xalloc() {
 #if defined (_STLP_THREADS) && \
     defined (_STLP_WIN32THREADS) && defined (_STLP_NEW_PLATFORM_SDK)
   static volatile __stl_atomic_t _S_index = 0;
   return _STLP_ATOMIC_INCREMENT(&_S_index);
 #else
   static int _S_index = 0;
   static _STLP_STATIC_MUTEX __lock _STLP_MUTEX_INITIALIZER;
   _STLP_auto_lock sentry(__lock);
   return _S_index++;
 #endif
 }
 long& ios_base::iword(int index) {
   static long dummy = 0;
   pair<long*, size_t> tmp = _Stl_expand_array(_M_iwords, _M_num_iwords, index);
   if (tmp.first) {              // The allocation, if any, succeeded.
     _M_iwords = tmp.first;
     _M_num_iwords = tmp.second;
     return _M_iwords[index];
   }
   else {
     _M_setstate_nothrow(badbit);
     _M_check_exception_mask();
     return dummy;
   }
 }
 void*& ios_base::pword(int index) {
   static void* dummy = 0;
   pair<void**, size_t> tmp = _Stl_expand_array(_M_pwords, _M_num_pwords, index);
   if (tmp.first) {              // The allocation, if any, succeeded.
     _M_pwords = tmp.first;
     _M_num_pwords = tmp.second;
     return _M_pwords[index];
   }
   else {
     _M_setstate_nothrow(badbit);
     _M_check_exception_mask();
     return dummy;
   }
 }
 void ios_base::register_callback(event_callback __fn, int index) {
   pair<pair<event_callback, int>*, size_t> tmp
     = _Stl_expand_array(_M_callbacks, _M_num_callbacks, (int)_M_callback_index /* fbp: index ??? */ );
   if (tmp.first) {
     _M_callbacks = tmp.first;
     _M_num_callbacks = tmp.second;
     _M_callbacks[_M_callback_index++] = make_pair(__fn, index);
   }
   else {
     _M_setstate_nothrow(badbit);
     _M_check_exception_mask();
   }
 }
 // Invokes all currently registered callbacks for a particular event.
 // Behaves correctly even if one of the callbacks adds a new callback.
 void ios_base::_M_invoke_callbacks(event E) {
   for (size_t i = _M_callback_index; i > 0; --i) {
     event_callback f = _M_callbacks[i-1].first;
     int n = _M_callbacks[i-1].second;
     f(E, *this, n);
   }
 }
 // This function is called if the state, rdstate(), has a bit set
 // that is also set in the exception mask exceptions().
 void ios_base::_M_throw_failure() {
   const char* arg ;
 # if 0
   char buffer[256];
   char* ptr;
   strcpy(buffer, "ios failure: rdstate = 0x");
   ptr = __write_integer(buffer+strlen(buffer), ios_base::hex, __STATIC_CAST(unsigned long,_M_iostate));
   strcpy(ptr, " mask = 0x");
   ptr = __write_integer(buffer+strlen(buffer), ios_base::hex, __STATIC_CAST(unsigned long,_M_exception_mask));
   *ptr = 0;
   arg = buffer;
 # else
   arg = "ios failure";
 # endif
 # ifndef _STLP_USE_EXCEPTIONS
   fputs(arg, stderr);
 # else
   throw failure(arg);
 # endif
 }
 // Copy x's state to *this.  This member function is used in the
 // implementation of basic_ios::copyfmt.  Does not copy _M_exception_mask
 // or _M_iostate.
 void ios_base::_M_copy_state(const ios_base& x) {
   _M_fmtflags  = x._M_fmtflags; // Copy the flags, except for _M_iostate
   _M_openmode  = x._M_openmode; // and _M_exception_mask.
   _M_seekdir   = x._M_seekdir;
   _M_precision = x._M_precision;
   _M_width     = x._M_width;
   _M_locale    = x._M_locale;
   if (x._M_callbacks) {
     pair<event_callback, int>* tmp = _Stl_copy_array(x._M_callbacks, x._M_callback_index);
     if (tmp) {
       free(_M_callbacks);
       _M_callbacks = tmp;
       _M_num_callbacks = _M_callback_index = x._M_callback_index;
     }
     else {
       _M_setstate_nothrow(badbit);
       _M_check_exception_mask();
     }
   }
   if (x._M_iwords) {
     long* tmp = _Stl_copy_array(x._M_iwords, x._M_num_iwords);
     if (tmp) {
       free(_M_iwords);
       _M_iwords = tmp;
       _M_num_iwords = x._M_num_iwords;
     }
     else {
       _M_setstate_nothrow(badbit);
       _M_check_exception_mask();
     }
   }
   if (x._M_pwords) {
     void** tmp = _Stl_copy_array(x._M_pwords, x._M_num_pwords);
     if (tmp) {
       free(_M_pwords);
       _M_pwords = tmp;
       _M_num_pwords = x._M_num_pwords;
     }
     else {
       _M_setstate_nothrow(badbit);
       _M_check_exception_mask();
     }
   }
 }
 // ios's (protected) default constructor.  The standard says that all
 // fields have indeterminate values; we initialize them to zero for
 // simplicity.  The only thing that really matters is that the arrays
 // are all initially null pointers, and the array element counts are all
 // initially zero.
 ios_base::ios_base()
   : _M_fmtflags(0), _M_iostate(0), _M_openmode(0), _M_seekdir(0),
     _M_exception_mask(0),
     _M_precision(0), _M_width(0),
     _M_locale(),
     _M_callbacks(0), _M_num_callbacks(0), _M_callback_index(0),
     _M_iwords(0), _M_num_iwords(0),
     _M_pwords(0),
     _M_num_pwords(0)
 {}
 // ios's destructor.
 ios_base::~ios_base() {
   _M_invoke_callbacks(erase_event);
   free(_M_callbacks);
   free(_M_iwords);
   free(_M_pwords);
 }
 //----------------------------------------------------------------------
 // Force instantiation of basic_ios
 // For DLL exports, they are already instantiated.
 #if !defined(_STLP_NO_FORCE_INSTANTIATE)
 template class _STLP_CLASS_DECLSPEC basic_ios<char, char_traits<char> >;
 #  if !defined (_STLP_NO_WCHAR_T)
 template class _STLP_CLASS_DECLSPEC basic_ios<wchar_t, char_traits<wchar_t> >;
 #  endif /* _STLP_NO_WCHAR_T */
 #endif
 _STLP_END_NAMESPACE
 // Local Variables:
 // mode:C++
 // End:

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build/stlport/src/ios.cpp@6474c204b198 (annotated)

build/stlport/src/ios.cpp