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b32b8144 FG |
1 | // Copyright (c) 2006, 2007 Julio M. Merino Vidal |
2 | // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling | |
3 | // Copyright (c) 2009 Boris Schaeling | |
4 | // Copyright (c) 2010 Felipe Tanus, Boris Schaeling | |
5 | // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling | |
6 | // | |
7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
9 | ||
10 | ||
11 | #ifndef BOOST_PROCESS_PIPE_HPP | |
12 | #define BOOST_PROCESS_PIPE_HPP | |
13 | ||
14 | #include <boost/config.hpp> | |
15 | #include <boost/process/detail/config.hpp> | |
16 | #include <streambuf> | |
17 | #include <istream> | |
18 | #include <ostream> | |
19 | #include <vector> | |
20 | ||
21 | #if defined(BOOST_POSIX_API) | |
22 | #include <boost/process/detail/posix/basic_pipe.hpp> | |
23 | #elif defined(BOOST_WINDOWS_API) | |
24 | #include <boost/process/detail/windows/basic_pipe.hpp> | |
25 | #endif | |
26 | ||
27 | namespace boost { namespace process { | |
28 | ||
29 | using ::boost::process::detail::api::basic_pipe; | |
30 | ||
31 | #if defined(BOOST_PROCESS_DOXYGEN) | |
32 | /** Class implementation of a pipe. | |
33 | * | |
34 | */ | |
35 | template<class CharT, class Traits = std::char_traits<CharT>> | |
36 | class basic_pipe | |
37 | { | |
38 | public: | |
39 | typedef CharT char_type ; | |
40 | typedef Traits traits_type; | |
41 | typedef typename Traits::int_type int_type ; | |
42 | typedef typename Traits::pos_type pos_type ; | |
43 | typedef typename Traits::off_type off_type ; | |
44 | typedef ::boost::detail::winapi::HANDLE_ native_handle; | |
45 | ||
46 | /// Default construct the pipe. Will be opened. | |
47 | basic_pipe(); | |
48 | ||
49 | ///Construct a named pipe. | |
50 | inline explicit basic_pipe(const std::string & name); | |
51 | /** Copy construct the pipe. | |
52 | * \note Duplicated the handles. | |
53 | */ | |
54 | inline basic_pipe(const basic_pipe& p); | |
55 | /** Move construct the pipe. */ | |
56 | basic_pipe(basic_pipe&& lhs); | |
57 | /** Copy assign the pipe. | |
58 | * \note Duplicated the handles. | |
59 | */ | |
60 | inline basic_pipe& operator=(const basic_pipe& p); | |
61 | /** Move assign the pipe. */ | |
62 | basic_pipe& operator=(basic_pipe&& lhs); | |
63 | /** Destructor closes the handles. */ | |
64 | ~basic_pipe(); | |
65 | /** Get the native handle of the source. */ | |
66 | native_handle native_source() const; | |
67 | /** Get the native handle of the sink. */ | |
68 | native_handle native_sink () const; | |
69 | ||
70 | /** Assign a new value to the source */ | |
71 | void assign_source(native_handle h); | |
72 | /** Assign a new value to the sink */ | |
73 | void assign_sink (native_handle h); | |
74 | ||
75 | ||
76 | ///Write data to the pipe. | |
77 | int_type write(const char_type * data, int_type count); | |
78 | ///Read data from the pipe. | |
79 | int_type read(char_type * data, int_type count); | |
80 | ///Check if the pipe is open. | |
81 | bool is_open(); | |
82 | ///Close the pipe | |
83 | void close(); | |
84 | }; | |
85 | ||
86 | #endif | |
87 | ||
88 | ||
89 | ||
90 | typedef basic_pipe<char> pipe; | |
91 | typedef basic_pipe<wchar_t> wpipe; | |
92 | ||
93 | ||
94 | /** Implementation of the stream buffer for a pipe. | |
95 | */ | |
96 | template< | |
97 | class CharT, | |
98 | class Traits = std::char_traits<CharT> | |
99 | > | |
100 | struct basic_pipebuf : std::basic_streambuf<CharT, Traits> | |
101 | { | |
102 | typedef basic_pipe<CharT, Traits> pipe_type; | |
103 | ||
104 | typedef CharT char_type ; | |
105 | typedef Traits traits_type; | |
106 | typedef typename Traits::int_type int_type ; | |
107 | typedef typename Traits::pos_type pos_type ; | |
108 | typedef typename Traits::off_type off_type ; | |
109 | ||
110 | constexpr static int default_buffer_size = BOOST_PROCESS_PIPE_SIZE; | |
111 | ||
112 | ///Default constructor, will also construct the pipe. | |
113 | basic_pipebuf() : _write(default_buffer_size), _read(default_buffer_size) | |
114 | { | |
115 | this->setg(_read.data(), _read.data()+ 128, _read.data() + 128); | |
116 | this->setp(_write.data(), _write.data() + _write.size()); | |
117 | } | |
118 | ///Copy Constructor. | |
119 | basic_pipebuf(const basic_pipebuf & ) = default; | |
120 | ///Move Constructor | |
121 | basic_pipebuf(basic_pipebuf && ) = default; | |
122 | ||
92f5a8d4 TL |
123 | ///Destructor -> writes the frest of the data |
124 | ~basic_pipebuf() | |
125 | { | |
126 | if (is_open()) | |
127 | overflow(Traits::eof()); | |
128 | } | |
129 | ||
b32b8144 FG |
130 | ///Move construct from a pipe. |
131 | basic_pipebuf(pipe_type && p) : _pipe(std::move(p)), | |
132 | _write(default_buffer_size), | |
133 | _read(default_buffer_size) | |
134 | { | |
135 | this->setg(_read.data(), _read.data()+ 128, _read.data() + 128); | |
136 | this->setp(_write.data(), _write.data() + _write.size()); | |
137 | } | |
138 | ///Construct from a pipe. | |
139 | basic_pipebuf(const pipe_type & p) : _pipe(p), | |
140 | _write(default_buffer_size), | |
141 | _read(default_buffer_size) | |
142 | { | |
143 | this->setg(_read.data(), _read.data()+ 128, _read.data() + 128); | |
144 | this->setp(_write.data(), _write.data() + _write.size()); | |
145 | } | |
146 | ///Copy assign. | |
147 | basic_pipebuf& operator=(const basic_pipebuf & ) = delete; | |
148 | ///Move assign. | |
149 | basic_pipebuf& operator=(basic_pipebuf && ) = default; | |
150 | ///Move assign a pipe. | |
151 | basic_pipebuf& operator=(pipe_type && p) | |
152 | { | |
153 | _pipe = std::move(p); | |
154 | return *this; | |
155 | } | |
156 | ///Copy assign a pipe. | |
157 | basic_pipebuf& operator=(const pipe_type & p) | |
158 | { | |
159 | _pipe = p; | |
160 | return *this; | |
161 | } | |
162 | ///Writes characters to the associated output sequence from the put area | |
163 | int_type overflow(int_type ch = traits_type::eof()) override | |
164 | { | |
92f5a8d4 | 165 | if (_pipe.is_open() && (ch != traits_type::eof())) |
b32b8144 FG |
166 | { |
167 | if (this->pptr() == this->epptr()) | |
168 | { | |
169 | bool wr = this->_write_impl(); | |
170 | *this->pptr() = ch; | |
171 | this->pbump(1); | |
172 | if (wr) | |
173 | return ch; | |
174 | } | |
175 | else | |
176 | { | |
177 | *this->pptr() = ch; | |
178 | this->pbump(1); | |
179 | if (this->_write_impl()) | |
180 | return ch; | |
181 | } | |
182 | } | |
92f5a8d4 TL |
183 | else if (ch == traits_type::eof()) |
184 | this->sync(); | |
185 | ||
b32b8144 FG |
186 | return traits_type::eof(); |
187 | } | |
188 | ///Synchronizes the buffers with the associated character sequence | |
189 | int sync() override { return this->_write_impl() ? 0 : -1; } | |
190 | ||
191 | ///Reads characters from the associated input sequence to the get area | |
192 | int_type underflow() override | |
193 | { | |
194 | if (!_pipe.is_open()) | |
195 | return traits_type::eof(); | |
196 | ||
197 | if (this->egptr() == &_read.back()) //ok, so we're at the end of the buffer | |
198 | this->setg(_read.data(), _read.data()+ 10, _read.data() + 10); | |
199 | ||
200 | ||
201 | auto len = &_read.back() - this->egptr() ; | |
202 | auto res = _pipe.read( | |
203 | this->egptr(), | |
204 | static_cast<typename pipe_type::int_type>(len)); | |
205 | if (res == 0) | |
206 | return traits_type::eof(); | |
207 | ||
208 | this->setg(this->eback(), this->gptr(), this->egptr() + res); | |
209 | auto val = *this->gptr(); | |
210 | ||
211 | return traits_type::to_int_type(val); | |
212 | } | |
213 | ||
214 | ||
215 | ///Set the pipe of the streambuf. | |
216 | void pipe(pipe_type&& p) {_pipe = std::move(p); } | |
217 | ///Set the pipe of the streambuf. | |
218 | void pipe(const pipe_type& p) {_pipe = p; } | |
219 | ///Get a reference to the pipe. | |
220 | pipe_type & pipe() & {return _pipe;} | |
221 | ///Get a const reference to the pipe. | |
222 | const pipe_type &pipe() const & {return _pipe;} | |
223 | ///Get a rvalue reference to the pipe. Qualified as rvalue. | |
224 | pipe_type && pipe() && {return std::move(_pipe);} | |
92f5a8d4 TL |
225 | |
226 | ///Check if the pipe is open | |
227 | bool is_open() const {return _pipe.is_open(); } | |
228 | ||
229 | ///Open a new pipe | |
230 | basic_pipebuf<CharT, Traits>* open() | |
231 | { | |
232 | if (is_open()) | |
233 | return nullptr; | |
234 | _pipe = pipe(); | |
235 | return this; | |
236 | } | |
237 | ||
238 | ///Open a new named pipe | |
239 | basic_pipebuf<CharT, Traits>* open(const std::string & name) | |
240 | { | |
241 | if (is_open()) | |
242 | return nullptr; | |
243 | _pipe = pipe(name); | |
244 | return this; | |
245 | } | |
246 | ||
247 | ///Flush the buffer & close the pipe | |
248 | basic_pipebuf<CharT, Traits>* close() | |
249 | { | |
250 | if (!is_open()) | |
251 | return nullptr; | |
252 | overflow(Traits::eof()); | |
253 | return this; | |
254 | } | |
b32b8144 FG |
255 | private: |
256 | pipe_type _pipe; | |
257 | std::vector<char_type> _write; | |
258 | std::vector<char_type> _read; | |
259 | ||
260 | bool _write_impl() | |
261 | { | |
262 | if (!_pipe.is_open()) | |
263 | return false; | |
264 | ||
265 | auto base = this->pbase(); | |
92f5a8d4 TL |
266 | |
267 | if (base == this->pptr()) | |
268 | return true; | |
269 | ||
270 | std::ptrdiff_t wrt = _pipe.write(base, | |
b32b8144 | 271 | static_cast<typename pipe_type::int_type>(this->pptr() - base)); |
92f5a8d4 | 272 | |
b32b8144 FG |
273 | std::ptrdiff_t diff = this->pptr() - base; |
274 | ||
275 | if (wrt < diff) | |
276 | std::move(base + wrt, base + diff, base); | |
277 | else if (wrt == 0) //broken pipe | |
278 | return false; | |
279 | ||
280 | this->pbump(-wrt); | |
281 | ||
282 | return true; | |
283 | } | |
284 | }; | |
285 | ||
286 | typedef basic_pipebuf<char> pipebuf; | |
287 | typedef basic_pipebuf<wchar_t> wpipebuf; | |
288 | ||
289 | /** Implementation of a reading pipe stream. | |
290 | * | |
291 | */ | |
292 | template< | |
293 | class CharT, | |
294 | class Traits = std::char_traits<CharT> | |
295 | > | |
296 | class basic_ipstream : public std::basic_istream<CharT, Traits> | |
297 | { | |
92f5a8d4 | 298 | mutable basic_pipebuf<CharT, Traits> _buf; |
b32b8144 FG |
299 | public: |
300 | ||
301 | typedef basic_pipe<CharT, Traits> pipe_type; | |
302 | ||
303 | typedef CharT char_type ; | |
304 | typedef Traits traits_type; | |
305 | typedef typename Traits::int_type int_type ; | |
306 | typedef typename Traits::pos_type pos_type ; | |
307 | typedef typename Traits::off_type off_type ; | |
308 | ||
309 | ///Get access to the underlying stream_buf | |
92f5a8d4 | 310 | basic_pipebuf<CharT, Traits>* rdbuf() const {return &_buf;}; |
b32b8144 FG |
311 | |
312 | ///Default constructor. | |
313 | basic_ipstream() : std::basic_istream<CharT, Traits>(nullptr) | |
314 | { | |
315 | std::basic_istream<CharT, Traits>::rdbuf(&_buf); | |
316 | }; | |
317 | ///Copy constructor. | |
318 | basic_ipstream(const basic_ipstream & ) = delete; | |
319 | ///Move constructor. | |
92f5a8d4 TL |
320 | basic_ipstream(basic_ipstream && lhs) : std::basic_istream<CharT, Traits>(nullptr), _buf(std::move(lhs._buf)) |
321 | { | |
322 | std::basic_istream<CharT, Traits>::rdbuf(&_buf); | |
323 | } | |
b32b8144 FG |
324 | |
325 | ///Move construct from a pipe. | |
326 | basic_ipstream(pipe_type && p) : std::basic_istream<CharT, Traits>(nullptr), _buf(std::move(p)) | |
327 | { | |
328 | std::basic_istream<CharT, Traits>::rdbuf(&_buf); | |
329 | } | |
330 | ||
331 | ///Copy construct from a pipe. | |
332 | basic_ipstream(const pipe_type & p) : std::basic_istream<CharT, Traits>(nullptr), _buf(p) | |
333 | { | |
334 | std::basic_istream<CharT, Traits>::rdbuf(&_buf); | |
335 | } | |
336 | ||
337 | ///Copy assignment. | |
338 | basic_ipstream& operator=(const basic_ipstream & ) = delete; | |
339 | ///Move assignment | |
92f5a8d4 TL |
340 | basic_ipstream& operator=(basic_ipstream && lhs) |
341 | { | |
342 | std::basic_istream<CharT, Traits>::operator=(std::move(lhs)); | |
343 | _buf = std::move(lhs); | |
344 | std::basic_istream<CharT, Traits>::rdbuf(&_buf); | |
345 | }; | |
b32b8144 FG |
346 | ///Move assignment of a pipe. |
347 | basic_ipstream& operator=(pipe_type && p) | |
348 | { | |
349 | _buf = std::move(p); | |
350 | return *this; | |
351 | } | |
352 | ///Copy assignment of a pipe. | |
353 | basic_ipstream& operator=(const pipe_type & p) | |
354 | { | |
355 | _buf = p; | |
356 | return *this; | |
357 | } | |
358 | ///Set the pipe of the streambuf. | |
359 | void pipe(pipe_type&& p) {_buf.pipe(std::move(p)); } | |
360 | ///Set the pipe of the streambuf. | |
361 | void pipe(const pipe_type& p) {_buf.pipe(p); } | |
362 | ///Get a reference to the pipe. | |
363 | pipe_type & pipe() & {return _buf.pipe();} | |
364 | ///Get a const reference to the pipe. | |
365 | const pipe_type &pipe() const & {return _buf.pipe();} | |
366 | ///Get a rvalue reference to the pipe. Qualified as rvalue. | |
367 | pipe_type && pipe() && {return std::move(_buf).pipe();} | |
92f5a8d4 TL |
368 | ///Check if the pipe is open |
369 | bool is_open() const {return _buf->is_open();} | |
370 | ||
371 | ///Open a new pipe | |
372 | void open() | |
373 | { | |
374 | if (_buf.open() == nullptr) | |
375 | this->setstate(std::ios_base::failbit); | |
376 | else | |
377 | this->clear(); | |
378 | } | |
379 | ||
380 | ///Open a new named pipe | |
381 | void open(const std::string & name) | |
382 | { | |
383 | if (_buf.open() == nullptr) | |
384 | this->setstate(std::ios_base::failbit); | |
385 | else | |
386 | this->clear(); | |
387 | } | |
388 | ||
389 | ///Flush the buffer & close the pipe | |
390 | void close() | |
391 | { | |
392 | if (_buf.close() == nullptr) | |
393 | this->setstate(std::ios_base::failbit); | |
394 | } | |
b32b8144 FG |
395 | }; |
396 | ||
397 | typedef basic_ipstream<char> ipstream; | |
398 | typedef basic_ipstream<wchar_t> wipstream; | |
399 | ||
400 | /** Implementation of a write pipe stream. | |
401 | * | |
402 | */ | |
403 | template< | |
404 | class CharT, | |
405 | class Traits = std::char_traits<CharT> | |
406 | > | |
407 | class basic_opstream : public std::basic_ostream<CharT, Traits> | |
408 | { | |
92f5a8d4 | 409 | mutable basic_pipebuf<CharT, Traits> _buf; |
b32b8144 FG |
410 | public: |
411 | typedef basic_pipe<CharT, Traits> pipe_type; | |
412 | ||
413 | typedef CharT char_type ; | |
414 | typedef Traits traits_type; | |
415 | typedef typename Traits::int_type int_type ; | |
416 | typedef typename Traits::pos_type pos_type ; | |
417 | typedef typename Traits::off_type off_type ; | |
418 | ||
419 | ||
420 | ///Get access to the underlying stream_buf | |
92f5a8d4 | 421 | basic_pipebuf<CharT, Traits>* rdbuf() const {return &_buf;}; |
b32b8144 FG |
422 | |
423 | ///Default constructor. | |
424 | basic_opstream() : std::basic_ostream<CharT, Traits>(nullptr) | |
425 | { | |
426 | std::basic_ostream<CharT, Traits>::rdbuf(&_buf); | |
427 | }; | |
428 | ///Copy constructor. | |
429 | basic_opstream(const basic_opstream & ) = delete; | |
430 | ///Move constructor. | |
92f5a8d4 TL |
431 | basic_opstream(basic_opstream && lhs) : std::basic_ostream<CharT, Traits>(nullptr), _buf(std::move(lhs._buf)) |
432 | { | |
433 | std::basic_ostream<CharT, Traits>::rdbuf(&_buf); | |
434 | } | |
b32b8144 FG |
435 | ///Move construct from a pipe. |
436 | basic_opstream(pipe_type && p) : std::basic_ostream<CharT, Traits>(nullptr), _buf(std::move(p)) | |
437 | { | |
438 | std::basic_ostream<CharT, Traits>::rdbuf(&_buf); | |
439 | }; | |
440 | ///Copy construct from a pipe. | |
441 | basic_opstream(const pipe_type & p) : std::basic_ostream<CharT, Traits>(nullptr), _buf(p) | |
442 | { | |
443 | std::basic_ostream<CharT, Traits>::rdbuf(&_buf); | |
444 | }; | |
445 | ///Copy assignment. | |
446 | basic_opstream& operator=(const basic_opstream & ) = delete; | |
447 | ///Move assignment | |
92f5a8d4 TL |
448 | basic_opstream& operator=(basic_opstream && lhs) |
449 | { | |
450 | std::basic_ostream<CharT, Traits>::operator=(std::move(lhs)); | |
451 | _buf = std::move(lhs); | |
452 | std::basic_ostream<CharT, Traits>::rdbuf(&_buf); | |
453 | }; | |
454 | ||
b32b8144 FG |
455 | ///Move assignment of a pipe. |
456 | basic_opstream& operator=(pipe_type && p) | |
457 | { | |
458 | _buf = std::move(p); | |
459 | return *this; | |
460 | } | |
461 | ///Copy assignment of a pipe. | |
462 | basic_opstream& operator=(const pipe_type & p) | |
463 | { | |
464 | _buf = p; | |
465 | return *this; | |
466 | } | |
467 | ///Set the pipe of the streambuf. | |
468 | void pipe(pipe_type&& p) {_buf.pipe(std::move(p)); } | |
469 | ///Set the pipe of the streambuf. | |
470 | void pipe(const pipe_type& p) {_buf.pipe(p); } | |
471 | ///Get a reference to the pipe. | |
472 | pipe_type & pipe() & {return _buf.pipe();} | |
473 | ///Get a const reference to the pipe. | |
474 | const pipe_type &pipe() const & {return _buf.pipe();} | |
475 | ///Get a rvalue reference to the pipe. Qualified as rvalue. | |
476 | pipe_type && pipe() && {return std::move(_buf).pipe();} | |
92f5a8d4 TL |
477 | |
478 | ///Open a new pipe | |
479 | void open() | |
480 | { | |
481 | if (_buf.open() == nullptr) | |
482 | this->setstate(std::ios_base::failbit); | |
483 | else | |
484 | this->clear(); | |
485 | } | |
486 | ||
487 | ///Open a new named pipe | |
488 | void open(const std::string & name) | |
489 | { | |
490 | if (_buf.open() == nullptr) | |
491 | this->setstate(std::ios_base::failbit); | |
492 | else | |
493 | this->clear(); | |
494 | } | |
495 | ||
496 | ///Flush the buffer & close the pipe | |
497 | void close() | |
498 | { | |
499 | if (_buf.close() == nullptr) | |
500 | this->setstate(std::ios_base::failbit); | |
501 | } | |
b32b8144 FG |
502 | }; |
503 | ||
504 | typedef basic_opstream<char> opstream; | |
505 | typedef basic_opstream<wchar_t> wopstream; | |
506 | ||
507 | ||
508 | /** Implementation of a read-write pipe stream. | |
509 | * | |
510 | */ | |
511 | template< | |
512 | class CharT, | |
513 | class Traits = std::char_traits<CharT> | |
514 | > | |
515 | class basic_pstream : public std::basic_iostream<CharT, Traits> | |
516 | { | |
92f5a8d4 | 517 | mutable basic_pipebuf<CharT, Traits> _buf; |
b32b8144 FG |
518 | public: |
519 | typedef basic_pipe<CharT, Traits> pipe_type; | |
520 | ||
521 | typedef CharT char_type ; | |
522 | typedef Traits traits_type; | |
523 | typedef typename Traits::int_type int_type ; | |
524 | typedef typename Traits::pos_type pos_type ; | |
525 | typedef typename Traits::off_type off_type ; | |
526 | ||
527 | ||
528 | ///Get access to the underlying stream_buf | |
92f5a8d4 | 529 | basic_pipebuf<CharT, Traits>* rdbuf() const {return &_buf;}; |
b32b8144 FG |
530 | |
531 | ///Default constructor. | |
532 | basic_pstream() : std::basic_iostream<CharT, Traits>(nullptr) | |
533 | { | |
534 | std::basic_iostream<CharT, Traits>::rdbuf(&_buf); | |
535 | }; | |
536 | ///Copy constructor. | |
537 | basic_pstream(const basic_pstream & ) = delete; | |
538 | ///Move constructor. | |
92f5a8d4 TL |
539 | basic_pstream(basic_pstream && lhs) : std::basic_iostream<CharT, Traits>(nullptr), _buf(std::move(lhs._buf)) |
540 | { | |
541 | std::basic_iostream<CharT, Traits>::rdbuf(&_buf); | |
542 | } | |
b32b8144 FG |
543 | ///Move construct from a pipe. |
544 | basic_pstream(pipe_type && p) : std::basic_iostream<CharT, Traits>(nullptr), _buf(std::move(p)) | |
545 | { | |
546 | std::basic_iostream<CharT, Traits>::rdbuf(&_buf); | |
547 | }; | |
548 | ///Copy construct from a pipe. | |
549 | basic_pstream(const pipe_type & p) : std::basic_iostream<CharT, Traits>(nullptr), _buf(p) | |
550 | { | |
551 | std::basic_iostream<CharT, Traits>::rdbuf(&_buf); | |
552 | }; | |
553 | ///Copy assignment. | |
554 | basic_pstream& operator=(const basic_pstream & ) = delete; | |
555 | ///Move assignment | |
92f5a8d4 TL |
556 | basic_pstream& operator=(basic_pstream && lhs) |
557 | { | |
558 | std::basic_istream<CharT, Traits>::operator=(std::move(lhs)); | |
559 | _buf = std::move(lhs); | |
560 | std::basic_iostream<CharT, Traits>::rdbuf(&_buf); | |
561 | }; | |
b32b8144 FG |
562 | ///Move assignment of a pipe. |
563 | basic_pstream& operator=(pipe_type && p) | |
564 | { | |
565 | _buf = std::move(p); | |
566 | return *this; | |
567 | } | |
568 | ///Copy assignment of a pipe. | |
569 | basic_pstream& operator=(const pipe_type & p) | |
570 | { | |
571 | _buf = p; | |
572 | return *this; | |
573 | } | |
574 | ///Set the pipe of the streambuf. | |
575 | void pipe(pipe_type&& p) {_buf.pipe(std::move(p)); } | |
576 | ///Set the pipe of the streambuf. | |
577 | void pipe(const pipe_type& p) {_buf.pipe(p); } | |
578 | ///Get a reference to the pipe. | |
579 | pipe_type & pipe() & {return _buf.pipe();} | |
580 | ///Get a const reference to the pipe. | |
581 | const pipe_type &pipe() const & {return _buf.pipe();} | |
582 | ///Get a rvalue reference to the pipe. Qualified as rvalue. | |
583 | pipe_type && pipe() && {return std::move(_buf).pipe();} | |
92f5a8d4 TL |
584 | |
585 | ///Open a new pipe | |
586 | void open() | |
587 | { | |
588 | if (_buf.open() == nullptr) | |
589 | this->setstate(std::ios_base::failbit); | |
590 | else | |
591 | this->clear(); | |
592 | } | |
593 | ||
594 | ///Open a new named pipe | |
595 | void open(const std::string & name) | |
596 | { | |
597 | if (_buf.open() == nullptr) | |
598 | this->setstate(std::ios_base::failbit); | |
599 | else | |
600 | this->clear(); | |
601 | } | |
602 | ||
603 | ///Flush the buffer & close the pipe | |
604 | void close() | |
605 | { | |
606 | if (_buf.close() == nullptr) | |
607 | this->setstate(std::ios_base::failbit); | |
608 | } | |
b32b8144 FG |
609 | }; |
610 | ||
611 | typedef basic_pstream<char> pstream; | |
612 | typedef basic_pstream<wchar_t> wpstream; | |
613 | ||
614 | ||
615 | ||
616 | }} | |
617 | ||
618 | ||
619 | ||
620 | #endif |