1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
|
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Using Boost.Asio</title>
<link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../boost_asio.html" title="Boost.Asio">
<link rel="prev" href="overview/implementation.html" title="Platform-Specific Implementation Notes">
<link rel="next" href="tutorial.html" title="Tutorial">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td>
<td align="center"><a href="../../../index.html">Home</a></td>
<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overview/implementation.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost_asio.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../boost_asio.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="tutorial.html"><img src="../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="boost_asio.using"></a><a class="link" href="using.html" title="Using Boost.Asio">Using Boost.Asio</a>
</h2></div></div></div>
<h4>
<a name="boost_asio.using.h0"></a>
<span><a name="boost_asio.using.supported_platforms"></a></span><a class="link" href="using.html#boost_asio.using.supported_platforms">Supported
Platforms</a>
</h4>
<p>
The following platforms and compilers have been tested:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
Win32 and Win64 using Visual C++ 7.1 and Visual C++ 8.0.
</li>
<li class="listitem">
Win32 using MinGW.
</li>
<li class="listitem">
Win32 using Cygwin. (<code class="computeroutput"><span class="identifier">__USE_W32_SOCKETS</span></code>
must be defined.)
</li>
<li class="listitem">
Linux (2.4 or 2.6 kernels) using g++ 3.3 or later.
</li>
<li class="listitem">
Solaris using g++ 3.3 or later.
</li>
<li class="listitem">
Mac OS X 10.4 using g++ 3.3 or later.
</li>
</ul></div>
<p>
The following platforms may also work:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
AIX 5.3 using XL C/C++ v9.
</li>
<li class="listitem">
HP-UX 11i v3 using patched aC++ A.06.14.
</li>
<li class="listitem">
QNX Neutrino 6.3 using g++ 3.3 or later.
</li>
<li class="listitem">
Solaris using Sun Studio 11 or later.
</li>
<li class="listitem">
Tru64 v5.1 using Compaq C++ v7.1.
</li>
<li class="listitem">
Win32 using Borland C++ 5.9.2
</li>
</ul></div>
<h4>
<a name="boost_asio.using.h1"></a>
<span><a name="boost_asio.using.dependencies"></a></span><a class="link" href="using.html#boost_asio.using.dependencies">Dependencies</a>
</h4>
<p>
The following libraries must be available in order to link programs that use
Boost.Asio:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
Boost.System for the <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span></code>
and <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">system_error</span></code> classes.
</li>
<li class="listitem">
Boost.Regex (optional) if you use any of the <a class="link" href="reference/read_until.html" title="read_until"><code class="computeroutput"><span class="identifier">read_until</span><span class="special">()</span></code></a>
or <a class="link" href="reference/async_read_until.html" title="async_read_until"><code class="computeroutput"><span class="identifier">async_read_until</span><span class="special">()</span></code></a>
overloads that take a <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span></code>
parameter.
</li>
<li class="listitem">
<a href="http://www.openssl.org" target="_top">OpenSSL</a> (optional) if you use
Boost.Asio's SSL support.
</li>
</ul></div>
<p>
Furthermore, some of the examples also require the Boost.Thread, Boost.Date_Time
or Boost.Serialization libraries.
</p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
With MSVC or Borland C++ you may want to add <code class="computeroutput"><span class="special">-</span><span class="identifier">DBOOST_DATE_TIME_NO_LIB</span></code> and <code class="computeroutput"><span class="special">-</span><span class="identifier">DBOOST_REGEX_NO_LIB</span></code>
to your project settings to disable autolinking of the Boost.Date_Time and
Boost.Regex libraries respectively. Alternatively, you may choose to build
these libraries and link to them.
</p></td></tr>
</table></div>
<h4>
<a name="boost_asio.using.h2"></a>
<span><a name="boost_asio.using.building_boost_libraries"></a></span><a class="link" href="using.html#boost_asio.using.building_boost_libraries">Building
Boost Libraries</a>
</h4>
<p>
You may build the subset of Boost libraries required to use Boost.Asio and
its examples by running the following command from the root of the Boost download
package:
</p>
<pre class="programlisting">bjam --with-system --with-thread --with-date_time --with-regex --with-serialization stage
</pre>
<p>
This assumes that you have already built <code class="computeroutput"><span class="identifier">bjam</span></code>.
Consult the Boost.Build documentation for more details.
</p>
<h4>
<a name="boost_asio.using.h3"></a>
<span><a name="boost_asio.using.optional_separate_compilation"></a></span><a class="link" href="using.html#boost_asio.using.optional_separate_compilation">Optional
separate compilation</a>
</h4>
<p>
By default, Boost.Asio is a header-only library. However, some developers may
prefer to build Boost.Asio using separately compiled source code. To do this,
add <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">asio</span><span class="special">/</span><span class="identifier">impl</span><span class="special">/</span><span class="identifier">src</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> to one (and only one) source file in a
program, then build the program with <code class="computeroutput"><span class="identifier">BOOST_ASIO_SEPARATE_COMPILATION</span></code>
defined in the project/compiler settings. Alternatively, <code class="computeroutput"><span class="identifier">BOOST_ASIO_DYN_LINK</span></code>
may be defined to build a separately-compiled Boost.Asio as part of a shared
library.
</p>
<p>
If using Boost.Asio's SSL support, you will also need to add <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">asio</span><span class="special">/</span><span class="identifier">ssl</span><span class="special">/</span><span class="identifier">impl</span><span class="special">/</span><span class="identifier">src</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>.
</p>
<h4>
<a name="boost_asio.using.h4"></a>
<span><a name="boost_asio.using.macros"></a></span><a class="link" href="using.html#boost_asio.using.macros">Macros</a>
</h4>
<p>
The macros listed in the table below may be used to control the behaviour of
Boost.Asio.
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Macro
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_ENABLE_BUFFER_DEBUGGING</span></code>
</p>
</td>
<td>
<p>
Enables Boost.Asio's buffer debugging support, which can help identify
when invalid buffers are used in read or write operations (e.g. if
a std::string object being written is destroyed before the write
operation completes).
</p>
<p>
When using Microsoft Visual C++, this macro is defined automatically
if the compiler's iterator debugging support is enabled, unless
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_BUFFER_DEBUGGING</span></code>
has been defined.
</p>
<p>
When using g++, this macro is defined automatically if standard library
debugging is enabled (<code class="computeroutput"><span class="identifier">_GLIBCXX_DEBUG</span></code>
is defined), unless <code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_BUFFER_DEBUGGING</span></code>
has been defined.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_BUFFER_DEBUGGING</span></code>
</p>
</td>
<td>
<p>
Explictly disables Boost.Asio's buffer debugging support.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_DEV_POLL</span></code>
</p>
</td>
<td>
<p>
Explicitly disables <code class="literal">/dev/poll</code> support on Solaris,
forcing the use of a <code class="computeroutput"><span class="identifier">select</span></code>-based
implementation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_EPOLL</span></code>
</p>
</td>
<td>
<p>
Explicitly disables <code class="computeroutput"><span class="identifier">epoll</span></code>
support on Linux, forcing the use of a <code class="computeroutput"><span class="identifier">select</span></code>-based
implementation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_EVENTFD</span></code>
</p>
</td>
<td>
<p>
Explicitly disables <code class="computeroutput"><span class="identifier">eventfd</span></code>
support on Linux, forcing the use of a pipe to interrupt blocked
epoll/select system calls.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_KQUEUE</span></code>
</p>
</td>
<td>
<p>
Explicitly disables <code class="computeroutput"><span class="identifier">kqueue</span></code>
support on Mac OS X and BSD variants, forcing the use of a <code class="computeroutput"><span class="identifier">select</span></code>-based implementation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_IOCP</span></code>
</p>
</td>
<td>
<p>
Explicitly disables I/O completion ports support on Windows, forcing
the use of a <code class="computeroutput"><span class="identifier">select</span></code>-based
implementation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_DISABLE_THREADS</span></code>
</p>
</td>
<td>
<p>
Explicitly disables Boost.Asio's threading support, independent of
whether or not Boost as a whole supports threads.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN</span></code>
</p>
</td>
<td>
<p>
By default, Boost.Asio will automatically define <code class="computeroutput"><span class="identifier">WIN32_LEAN_AND_MEAN</span></code>
when compiling for Windows, to minimise the number of Windows SDK
header files and features that are included. The presence of <code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN</span></code>
prevents <code class="computeroutput"><span class="identifier">WIN32_LEAN_AND_MEAN</span></code>
from being defined.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_NOMINMAX</span></code>
</p>
</td>
<td>
<p>
By default, Boost.Asio will automatically define <code class="computeroutput"><span class="identifier">NOMINMAX</span></code>
when compiling for Windows, to suppress the definition of the <code class="computeroutput"><span class="identifier">min</span><span class="special">()</span></code>
and <code class="computeroutput"><span class="identifier">max</span><span class="special">()</span></code>
macros. The presence of <code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_NOMINMAX</span></code>
prevents <code class="computeroutput"><span class="identifier">NOMINMAX</span></code>
from being defined.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_DEFAULT_LINKED_LIBS</span></code>
</p>
</td>
<td>
<p>
When compiling for Windows using Microsoft Visual C++ or Borland
C++, Boost.Asio will automatically link in the necessary Windows
SDK libraries for sockets support (i.e. <code class="literal">ws2_32.lib</code>
and <code class="literal">mswsock.lib</code>, or <code class="literal">ws2.lib</code>
when building for Windows CE). The <code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_DEFAULT_LINKED_LIBS</span></code>
macro prevents these libraries from being linked.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_SOCKET_STREAMBUF_MAX_ARITY</span></code>
</p>
</td>
<td>
<p>
Determines the maximum number of arguments that may be passed to
the <code class="computeroutput"><span class="identifier">basic_socket_streambuf</span></code>
class template's <code class="computeroutput"><span class="identifier">connect</span></code>
member function. Defaults to 5.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY</span></code>
</p>
</td>
<td>
<p>
Determines the maximum number of arguments that may be passed to
the <code class="computeroutput"><span class="identifier">basic_socket_iostream</span></code>
class template's constructor and <code class="computeroutput"><span class="identifier">connect</span></code>
member function. Defaults to 5.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_ENABLE_CANCELIO</span></code>
</p>
</td>
<td>
<p>
Enables use of the <code class="computeroutput"><span class="identifier">CancelIo</span></code>
function on older versions of Windows. If not enabled, calls to
<code class="computeroutput"><span class="identifier">cancel</span><span class="special">()</span></code>
on a socket object will always fail with <code class="computeroutput"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">error</span><span class="special">::</span><span class="identifier">operation_not_supported</span></code>
when run on Windows XP, Windows Server 2003, and earlier versions
of Windows. When running on Windows Vista, Windows Server 2008, and
later, the <code class="computeroutput"><span class="identifier">CancelIoEx</span></code>
function is always used.
</p>
<p>
The <code class="computeroutput"><span class="identifier">CancelIo</span></code> function
has two issues that should be considered before enabling its use:
</p>
<p>
* It will only cancel asynchronous operations that were initiated
in the current thread.
</p>
<p>
* It can appear to complete without error, but the request to cancel
the unfinished operations may be silently ignored by the operating
system. Whether it works or not seems to depend on the drivers that
are installed.
</p>
<p>
For portable cancellation, consider using one of the following alternatives:
</p>
<p>
* Disable asio's I/O completion port backend by defining BOOST_ASIO_DISABLE_IOCP.
</p>
<p>
* Use the socket object's close() function to simultaneously cancel
the outstanding operations and close the socket.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_NO_TYPEID</span></code>
</p>
</td>
<td>
<p>
Disables uses of the <code class="computeroutput"><span class="keyword">typeid</span></code>
operator in Boost.Asio. Defined automatically if <code class="computeroutput"><span class="identifier">BOOST_NO_TYPEID</span></code>
is defined.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_ASIO_HASH_MAP_BUCKETS</span></code>
</p>
</td>
<td>
<p>
Determines the number of buckets in Boost.Asio's internal <code class="computeroutput"><span class="identifier">hash_map</span></code> objects. The value should
be a comma separated list of prime numbers, in ascending order. The
<code class="computeroutput"><span class="identifier">hash_map</span></code> implementation
will automatically increase the number of buckets as the number of
elements in the map increases.
</p>
<p>
Some examples:
</p>
<p>
* Defining <code class="computeroutput"><span class="identifier">BOOST_ASIO_HASH_MAP_BUCKETS</span></code>
to <code class="computeroutput"><span class="number">1021</span></code> means that the
<code class="computeroutput"><span class="identifier">hash_map</span></code> objects
will always contain 1021 buckets, irrespective of the number of elements
in the map.
</p>
<p>
* Defining <code class="computeroutput"><span class="identifier">BOOST_ASIO_HASH_MAP_BUCKETS</span></code>
to <code class="computeroutput"><span class="number">53</span><span class="special">,</span><span class="number">389</span><span class="special">,</span><span class="number">1543</span></code> means that the <code class="computeroutput"><span class="identifier">hash_map</span></code>
objects will initially contain 53 buckets. The number of buckets
will be increased to 389 and then 1543 as elements are added to the
map.
</p>
</td>
</tr>
</tbody>
</table></div>
<h4>
<a name="boost_asio.using.h5"></a>
<span><a name="boost_asio.using.mailing_list"></a></span><a class="link" href="using.html#boost_asio.using.mailing_list">Mailing
List</a>
</h4>
<p>
A mailing list specifically for Boost.Asio may be found on <a href="http://sourceforge.net/mail/?group_id=122478" target="_top">SourceForge.net</a>.
Newsgroup access is provided via <a href="http://dir.gmane.org/gmane.comp.lib.boost.asio.user" target="_top">Gmane</a>.
</p>
<h4>
<a name="boost_asio.using.h6"></a>
<span><a name="boost_asio.using.wiki"></a></span><a class="link" href="using.html#boost_asio.using.wiki">Wiki</a>
</h4>
<p>
Users are encouraged to share examples, tips and FAQs on the Boost.Asio wiki,
which is located at <a href="http://think-async.com/Asio/" target="_top">http://think-async.com/Asio/</a>.
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2012 Christopher M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overview/implementation.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost_asio.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../boost_asio.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="tutorial.html"><img src="../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>
|
