1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/stlport/src/iostream.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,354 @@
1.4 +/*
1.5 + * Copyright (c) 1999
1.6 + * Silicon Graphics Computer Systems, Inc.
1.7 + *
1.8 + * Copyright (c) 1999
1.9 + * Boris Fomitchev
1.10 + *
1.11 + * This material is provided "as is", with absolutely no warranty expressed
1.12 + * or implied. Any use is at your own risk.
1.13 + *
1.14 + * Permission to use or copy this software for any purpose is hereby granted
1.15 + * without fee, provided the above notices are retained on all copies.
1.16 + * Permission to modify the code and to distribute modified code is granted,
1.17 + * provided the above notices are retained, and a notice that the code was
1.18 + * modified is included with the above copyright notice.
1.19 + *
1.20 + */
1.21 +#include "stlport_prefix.h"
1.22 +
1.23 +#include <memory>
1.24 +#include <istream>
1.25 +#include <fstream>
1.26 +#if defined (_STLP_MSVC) || defined (__MWERKS__) || defined (__ICL) || defined (__ISCPP__)
1.27 +# define _STLP_USE_NOT_INIT_SEGMENT
1.28 +# include <iostream>
1.29 +#endif
1.30 +
1.31 +#include "stdio_streambuf.h"
1.32 +#include "aligned_buffer.h"
1.33 +#include "_stdio_file.h"
1.34 +#include "c_locale.h"
1.35 +
1.36 +// boris : note this is repeated in <iostream>
1.37 +#ifndef _STLP_USE_NAMESPACES
1.38 +// in case of SGI iostreams, we have to rename our streams not to clash with those
1.39 +// provided in native lib
1.40 +# define cin _STLP_cin
1.41 +# define cout _STLP_cout
1.42 +# define cerr _STLP_cerr
1.43 +# define clog _STLP_clog
1.44 +#endif
1.45 +
1.46 +_STLP_BEGIN_NAMESPACE
1.47 +
1.48 +// This file handles iostream initialization. It is inherently
1.49 +// nonportable, since the C++ language definition provides no mechanism
1.50 +// for controlling order of initialization of nonlocal objects.
1.51 +// Initialization has three parts, which must be performed in the following
1.52 +// order:
1.53 +// (1) Initialize the locale system
1.54 +// (2) Call the constructors for the eight global stream objects.
1.55 +// (3) Create streambufs for the global stream objects, and initialize
1.56 +// the stream objects by calling the init() member function.
1.57 +
1.58 +
1.59 +#if defined (_STLP_USE_NOT_INIT_SEGMENT)
1.60 +
1.61 +// Definitions of the eight global I/O objects that are declared in
1.62 +// <iostream>. For some compilers we use pragmas to put the global I/O
1.63 +// objects into an initialization segment that will not
1.64 +// be executed. We then explicitly invoke the constructors
1.65 +// with placement new in ios_base::_S_initialize()
1.66 +
1.67 +# if defined (__MWERKS__)
1.68 +# pragma suppress_init_code on
1.69 +# else
1.70 +# pragma init_seg("STLPORT_NO_INIT")
1.71 +# endif
1.72 +
1.73 +_STLP_DECLSPEC istream cin(0);
1.74 +_STLP_DECLSPEC ostream cout(0);
1.75 +_STLP_DECLSPEC ostream cerr(0);
1.76 +_STLP_DECLSPEC ostream clog(0);
1.77 +
1.78 +# ifndef _STLP_NO_WCHAR_T
1.79 +_STLP_DECLSPEC wistream wcin(0);
1.80 +_STLP_DECLSPEC wostream wcout(0);
1.81 +_STLP_DECLSPEC wostream wcerr(0);
1.82 +_STLP_DECLSPEC wostream wclog(0);
1.83 +# endif
1.84 +
1.85 +# if defined (__MWERKS__)
1.86 +# pragma suppress_init_code off
1.87 +# endif
1.88 +
1.89 +#else
1.90 +
1.91 +// Definitions of the eight global I/O objects that are declared in
1.92 +// <iostream>. Disgusting hack: we deliberately define them with the
1.93 +// wrong types so that the constructors don't get run automatically.
1.94 +// We need special tricks to make sure that these objects are struct-
1.95 +// aligned rather than byte-aligned.
1.96 +
1.97 +// This is not portable. Declaring a variable with different types in
1.98 +// two translations units is "undefined", according to the C++ standard.
1.99 +// Most compilers, however, silently accept this instead of diagnosing
1.100 +// it as an error.
1.101 +
1.102 +# ifndef __DMC__
1.103 +_STLP_DECLSPEC _Stl_aligned_buffer<istream> cin;
1.104 +_STLP_DECLSPEC _Stl_aligned_buffer<ostream> cout;
1.105 +_STLP_DECLSPEC _Stl_aligned_buffer<ostream> cerr;
1.106 +_STLP_DECLSPEC _Stl_aligned_buffer<ostream> clog;
1.107 +# else
1.108 +_Stl_aligned_buffer<istream> cin;
1.109 +_Stl_aligned_buffer<ostream> cout;
1.110 +_Stl_aligned_buffer<ostream> cerr;
1.111 +_Stl_aligned_buffer<ostream> clog;
1.112 +
1.113 +# pragma alias("?cin@std@@3V?$basic_istream@std@DV?$char_traits@std@D@1@@1@A", "?cin@std@@3T?$_Stl_aligned_buffer@std@V?$basic_istream@std@DV?$char_traits@std@D@1@@1@@1@A")
1.114 +# pragma alias("?cout@std@@3V?$basic_ostream@std@DV?$char_traits@std@D@1@@1@A", "?cout@std@@3T?$_Stl_aligned_buffer@std@V?$basic_ostream@std@DV?$char_traits@std@D@1@@1@@1@A")
1.115 +# pragma alias("?cerr@std@@3V?$basic_ostream@std@DV?$char_traits@std@D@1@@1@A", "?cerr@std@@3T?$_Stl_aligned_buffer@std@V?$basic_ostream@std@DV?$char_traits@std@D@1@@1@@1@A")
1.116 +# pragma alias("?clog@std@@3V?$basic_ostream@std@DV?$char_traits@std@D@1@@1@A", "?clog@std@@3T?$_Stl_aligned_buffer@std@V?$basic_ostream@std@DV?$char_traits@std@D@1@@1@@1@A")
1.117 +# endif
1.118 +
1.119 +# ifndef _STLP_NO_WCHAR_T
1.120 +
1.121 +# ifndef __DMC__
1.122 +_STLP_DECLSPEC _Stl_aligned_buffer<wistream> wcin;
1.123 +_STLP_DECLSPEC _Stl_aligned_buffer<wostream> wcout;
1.124 +_STLP_DECLSPEC _Stl_aligned_buffer<wostream> wcerr;
1.125 +_STLP_DECLSPEC _Stl_aligned_buffer<wostream> wclog;
1.126 +# else
1.127 +_Stl_aligned_buffer<wistream> wcin;
1.128 +_Stl_aligned_buffer<wostream> wcout;
1.129 +_Stl_aligned_buffer<wostream> wcerr;
1.130 +_Stl_aligned_buffer<wostream> wclog;
1.131 +
1.132 +# pragma alias("?wcin@std@@3V?$basic_istream@std@_YV?$char_traits@std@_Y@1@@1@A", "?wcin@std@@3T?$_Stl_aligned_buffer@std@V?$basic_istream@std@_YV?$char_traits@std@_Y@1@@1@@1@A")
1.133 +# pragma alias("?wcout@std@@3V?$basic_ostream@std@_YV?$char_traits@std@_Y@1@@1@A", "?wcout@std@@3T?$_Stl_aligned_buffer@std@V?$basic_ostream@std@_YV?$char_traits@std@_Y@1@@1@@1@A")
1.134 +# pragma alias("?wcerr@std@@3V?$basic_ostream@std@_YV?$char_traits@std@_Y@1@@1@A", "?wcerr@std@@3T?$_Stl_aligned_buffer@std@V?$basic_ostream@std@_YV?$char_traits@std@_Y@1@@1@@1@A")
1.135 +# pragma alias("?wclog@std@@3V?$basic_ostream@std@_YV?$char_traits@std@_Y@1@@1@A", "?wclog@std@@3T?$_Stl_aligned_buffer@std@V?$basic_ostream@std@_YV?$char_traits@std@_Y@1@@1@@1@A")
1.136 +# endif
1.137 +# endif
1.138 +#endif /* STL_MSVC || __MWERKS__ */
1.139 +
1.140 +// Member functions from class ios_base and ios_base::Init
1.141 +
1.142 +long ios_base::Init::_S_count = 0;
1.143 +// by default, those are synced
1.144 +bool ios_base::_S_is_synced = true;
1.145 +
1.146 +ios_base::Init::Init() {
1.147 + if (_S_count++ == 0) {
1.148 + _Locale_init();
1.149 + ios_base::_S_initialize();
1.150 + _Filebuf_base::_S_initialize();
1.151 + }
1.152 +}
1.153 +
1.154 +ios_base::Init::~Init() {
1.155 + if (--_S_count == 0) {
1.156 + ios_base::_S_uninitialize();
1.157 + _Locale_final();
1.158 + }
1.159 +}
1.160 +
1.161 +static int _Stl_extract_open_param(FILE* f)
1.162 +{ return _FILE_fd(f); }
1.163 +
1.164 +#ifdef _STLP_REDIRECT_STDSTREAMS
1.165 +static const char* _Stl_extract_open_param(const char* name)
1.166 +{ return name; }
1.167 +#endif
1.168 +
1.169 +template <class _Tp>
1.170 +static filebuf*
1.171 +_Stl_create_filebuf(_Tp x, ios_base::openmode mode ) {
1.172 + auto_ptr<filebuf> result(new basic_filebuf<char, char_traits<char> >());
1.173 + result->open(_Stl_extract_open_param(x), mode);
1.174 +
1.175 + if (result->is_open())
1.176 + return result.release();
1.177 +
1.178 + return 0;
1.179 +}
1.180 +
1.181 +#if !defined (_STLP_NO_WCHAR_T)
1.182 +static wfilebuf*
1.183 +_Stl_create_wfilebuf(FILE* f, ios_base::openmode mode) {
1.184 + auto_ptr<wfilebuf> result(new basic_filebuf<wchar_t, char_traits<wchar_t> >());
1.185 + result->_M_open(_FILE_fd(f), mode);
1.186 +
1.187 + if (result->is_open())
1.188 + return result.release();
1.189 +
1.190 + return 0;
1.191 +}
1.192 +#endif
1.193 +
1.194 +void _STLP_CALL ios_base::_S_initialize() {
1.195 +#if !defined (_STLP_HAS_NO_NAMESPACES) && !defined (_STLP_DONT_USE_PRIV_NAMESPACE)
1.196 + using _STLP_PRIV stdio_istreambuf;
1.197 + using _STLP_PRIV stdio_ostreambuf;
1.198 +#endif
1.199 +
1.200 + auto_ptr<streambuf> cin_buf;
1.201 + auto_ptr<streambuf> cout_buf;
1.202 + auto_ptr<streambuf> cerr_buf;
1.203 + auto_ptr<streambuf> clog_buf;
1.204 +
1.205 + if (_S_is_synced)
1.206 + cin_buf.reset(new stdio_istreambuf(stdin));
1.207 + else
1.208 + cin_buf.reset(_Stl_create_filebuf(stdin, ios_base::in));
1.209 +
1.210 + if (_S_is_synced) {
1.211 +#ifdef _STLP_REDIRECT_STDSTREAMS
1.212 + cout_buf.reset(_Stl_create_filebuf("/stdout.txt", ios::out));
1.213 + cerr_buf.reset(_Stl_create_filebuf("/stderr.txt", ios::out));
1.214 + clog_buf.reset(_Stl_create_filebuf("/stdlog.txt", ios::out));
1.215 +#else
1.216 + cout_buf.reset(new stdio_ostreambuf(stdout));
1.217 + cerr_buf.reset(new stdio_ostreambuf(stderr));
1.218 + clog_buf.reset(new stdio_ostreambuf(stderr));
1.219 +#endif
1.220 + }
1.221 + else {
1.222 + cout_buf.reset(_Stl_create_filebuf(stdout, ios_base::out));
1.223 + cerr_buf.reset(_Stl_create_filebuf(stderr, ios_base::out));
1.224 + clog_buf.reset(_Stl_create_filebuf(stderr, ios_base::out));
1.225 + }
1.226 +
1.227 + istream* ptr_cin = new(&cin) istream(cin_buf.get()); cin_buf.release();
1.228 + ostream* ptr_cout = new(&cout) ostream(cout_buf.get()); cout_buf.release();
1.229 + ostream* ptr_cerr = new(&cerr) ostream(cerr_buf.get()); cerr_buf.release();
1.230 + /*ostream* ptr_clog = */ new(&clog) ostream(clog_buf.get()); clog_buf.release();
1.231 + ptr_cin->tie(ptr_cout);
1.232 + ptr_cerr->setf(ios_base::unitbuf);
1.233 +
1.234 +#ifndef _STLP_NO_WCHAR_T
1.235 + auto_ptr<wfilebuf> win(_Stl_create_wfilebuf(stdin, ios_base::in));
1.236 + auto_ptr<wfilebuf> wout(_Stl_create_wfilebuf(stdout, ios_base::out));
1.237 + auto_ptr<wfilebuf> werr(_Stl_create_wfilebuf(stderr, ios_base::out));
1.238 + auto_ptr<wfilebuf> wlog(_Stl_create_wfilebuf(stderr, ios_base::out));
1.239 +
1.240 + // Run constructors for the four wide stream objects.
1.241 + wistream* ptr_wcin = new(&wcin) wistream(win.get()); win.release();
1.242 + wostream* ptr_wcout = new(&wcout) wostream(wout.get()); wout.release();
1.243 + wostream* ptr_wcerr = new(&wcerr) wostream(werr.get()); werr.release();
1.244 + /*wostream* ptr_wclog = */ new(&wclog) wostream(wlog.get()); wlog.release();
1.245 +
1.246 + ptr_wcin->tie(ptr_wcout);
1.247 + ptr_wcerr->setf(ios_base::unitbuf);
1.248 +#endif
1.249 +}
1.250 +
1.251 +void _STLP_CALL ios_base::_S_uninitialize() {
1.252 + // Note that destroying output streambufs flushes the buffers.
1.253 + istream* ptr_cin = &cin;
1.254 + ostream* ptr_cout = &cout;
1.255 + ostream* ptr_cerr = &cerr;
1.256 + ostream* ptr_clog = &clog;
1.257 +
1.258 + // We don't want any exceptions being thrown here
1.259 + ptr_cin->exceptions(0);
1.260 + ptr_cout->exceptions(0);
1.261 + ptr_cerr->exceptions(0);
1.262 + ptr_clog->exceptions(0);
1.263 +
1.264 + delete ptr_cin->rdbuf(0);
1.265 + delete ptr_cout->rdbuf(0);
1.266 + delete ptr_cerr->rdbuf(0);
1.267 + delete ptr_clog->rdbuf(0);
1.268 +
1.269 + _Destroy(ptr_cin);
1.270 + _Destroy(ptr_cout);
1.271 + _Destroy(ptr_cerr);
1.272 + _Destroy(ptr_clog);
1.273 +
1.274 +#ifndef _STLP_NO_WCHAR_T
1.275 + wistream* ptr_wcin = &wcin;
1.276 + wostream* ptr_wcout = &wcout;
1.277 + wostream* ptr_wcerr = &wcerr;
1.278 + wostream* ptr_wclog = &wclog;
1.279 +
1.280 + // We don't want any exceptions being thrown here
1.281 + ptr_wcin->exceptions(0);
1.282 + ptr_wcout->exceptions(0);
1.283 + ptr_wcerr->exceptions(0);
1.284 + ptr_wclog->exceptions(0);
1.285 +
1.286 + delete ptr_wcin->rdbuf(0);
1.287 + delete ptr_wcout->rdbuf(0);
1.288 + delete ptr_wcerr->rdbuf(0);
1.289 + delete ptr_wclog->rdbuf(0);
1.290 +
1.291 + _Destroy(ptr_wcin);
1.292 + _Destroy(ptr_wcout);
1.293 + _Destroy(ptr_wcerr);
1.294 + _Destroy(ptr_wclog);
1.295 +#endif
1.296 +}
1.297 +
1.298 +
1.299 +bool _STLP_CALL ios_base::sync_with_stdio(bool sync) {
1.300 +# if !defined (_STLP_HAS_NO_NAMESPACES) && !defined (_STLP_DONT_USE_PRIV_NAMESPACE)
1.301 + using _STLP_PRIV stdio_istreambuf;
1.302 + using _STLP_PRIV stdio_ostreambuf;
1.303 +# endif
1.304 +
1.305 + if (sync == _S_is_synced) return sync;
1.306 +
1.307 + // if by any chance we got there before std streams initialization,
1.308 + // just set the sync flag and exit
1.309 + if (Init::_S_count == 0) {
1.310 + _S_is_synced = sync;
1.311 + return sync;
1.312 + }
1.313 +
1.314 + auto_ptr<streambuf> cin_buf;
1.315 + auto_ptr<streambuf> cout_buf;
1.316 + auto_ptr<streambuf> cerr_buf;
1.317 + auto_ptr<streambuf> clog_buf;
1.318 +
1.319 + if (sync)
1.320 + cin_buf.reset(new stdio_istreambuf(stdin));
1.321 + else
1.322 + cin_buf.reset(_Stl_create_filebuf(stdin, ios_base::in));
1.323 +
1.324 + if (sync) {
1.325 +#ifdef _STLP_REDIRECT_STDSTREAMS
1.326 + cout_buf.reset(_Stl_create_filebuf("/stdout.txt", ios::out));
1.327 + cerr_buf.reset(_Stl_create_filebuf("/stderr.txt", ios::out));
1.328 + clog_buf.reset(_Stl_create_filebuf("/stdlog.txt", ios::out));
1.329 +#else
1.330 + cout_buf.reset(new stdio_ostreambuf(stdout));
1.331 + cerr_buf.reset(new stdio_ostreambuf(stderr));
1.332 + clog_buf.reset(new stdio_ostreambuf(stderr));
1.333 +#endif
1.334 + }
1.335 + else {
1.336 + cout_buf.reset(_Stl_create_filebuf(stdout, ios_base::out));
1.337 + cerr_buf.reset(_Stl_create_filebuf(stderr, ios_base::out));
1.338 + clog_buf.reset(_Stl_create_filebuf(stderr, ios_base::out));
1.339 + }
1.340 +
1.341 + if (cin_buf.get() != 0 && cout_buf.get() != 0 && cerr_buf.get() != 0 && clog_buf.get() != 0) {
1.342 + // When streambuf passed to rdbuf is not null, rdbuf is exception safe:
1.343 + delete (&cin)->rdbuf(cin_buf.release());
1.344 + delete (&cout)->rdbuf(cout_buf.release());
1.345 + delete (&cerr)->rdbuf(cerr_buf.release());
1.346 + delete (&clog)->rdbuf(clog_buf.release());
1.347 + _S_is_synced = sync;
1.348 + }
1.349 +
1.350 + return _S_is_synced;
1.351 +}
1.352 +
1.353 +_STLP_END_NAMESPACE
1.354 +
1.355 +// Local Variables:
1.356 +// mode:C++
1.357 +// End:
