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25 <div class="section">
26 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
27 <a name="interprocess.acknowledgements_notes"></a><a class="link" href="acknowledgements_notes.html" title="Acknowledgements, notes and links">Acknowledgements,
28     notes and links</a>
29 </h2></div></div></div>
30 <div class="toc"><dl class="toc">
31 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows">Notes
32       for Windows users</a></span></dt>
33 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_linux">Notes
34       for Linux users</a></span></dt>
35 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.thanks_to">Thanks
36       to...</a></span></dt>
37 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes">Release
38       Notes</a></span></dt>
39 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.books_and_links">Books
40       and interesting links</a></span></dt>
41 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements">Future
42       improvements...</a></span></dt>
43 </dl></div>
44 <div class="section">
45 <div class="titlepage"><div><div><h3 class="title">
46 <a name="interprocess.acknowledgements_notes.notes_windows"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows" title="Notes for Windows users">Notes
47       for Windows users</a>
48 </h3></div></div></div>
49 <div class="toc"><dl class="toc">
50 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows.notes_windows_com_init">COM
51         Initialization</a></span></dt>
52 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows.notes_windows_shm_folder">Shared
53         memory emulation folder</a></span></dt>
54 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows.boost_use_windows_h">BOOST_USE_WINDOWS_H
55         support</a></span></dt>
56 </dl></div>
57 <div class="section">
58 <div class="titlepage"><div><div><h4 class="title">
59 <a name="interprocess.acknowledgements_notes.notes_windows.notes_windows_com_init"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows.notes_windows_com_init" title="COM Initialization">COM
60         Initialization</a>
61 </h4></div></div></div>
62 <p>
63           <span class="bold"><strong>Boost.Interprocess</strong></span> uses the Windows COM
64           library to implement some features and initializes it with concurrency
65           model <code class="computeroutput"><span class="identifier">COINIT_APARTMENTTHREADED</span></code>.
66           If the COM library was already initialized by the calling thread for another
67           concurrency model, <span class="bold"><strong>Boost.Interprocess</strong></span>
68           handles this gracefully and uses COM calls for the already initialized
69           model. If for some reason, you want <span class="bold"><strong>Boost.Interprocess</strong></span>
70           to initialize the COM library with another model, define the macro <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_WINDOWS_COINIT_MODEL</span></code>
71           before including <span class="bold"><strong>Boost.Interprocess</strong></span> to
72           one of these values:
73         </p>
74 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
75 <li class="listitem">
76               <code class="computeroutput"><span class="identifier">COINIT_APARTMENTTHREADED_BIPC</span></code>
77             </li>
78 <li class="listitem">
79               <code class="computeroutput"><span class="identifier">COINIT_MULTITHREADED_BIPC</span></code>
80             </li>
81 <li class="listitem">
82               <code class="computeroutput"><span class="identifier">COINIT_DISABLE_OLE1DDE_BIPC</span></code>
83             </li>
84 <li class="listitem">
85               <code class="computeroutput"><span class="identifier">COINIT_SPEED_OVER_MEMORY_BIPC</span></code>
86             </li>
87 </ul></div>
88 </div>
89 <div class="section">
90 <div class="titlepage"><div><div><h4 class="title">
91 <a name="interprocess.acknowledgements_notes.notes_windows.notes_windows_shm_folder"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows.notes_windows_shm_folder" title="Shared memory emulation folder">Shared
92         memory emulation folder</a>
93 </h4></div></div></div>
94 <p>
95           Shared memory (<code class="computeroutput"><span class="identifier">shared_memory_object</span></code>)
96           is implemented in windows using memory mapped files, placed in a shared
97           directory in the shared documents folder (<code class="computeroutput"><span class="identifier">SOFTWARE</span><span class="special">\</span><span class="identifier">Microsoft</span><span class="special">\</span><span class="identifier">Windows</span><span class="special">\</span><span class="identifier">CurrentVersion</span><span class="special">\</span><span class="identifier">Explorer</span><span class="special">\</span><span class="identifier">Shell</span> <span class="identifier">Folders</span><span class="special">\</span><span class="identifier">Common</span> <span class="identifier">AppData</span></code>).
98           This directory name is the last bootup time obtained via COM calls (if
99           <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME</span></code>)
100           defined or searching the system log for a startup event (the default implementation),
101           so that each bootup shared memory is created in a new folder obtaining
102           kernel persistence shared memory.
103         </p>
104 <p>
105           If using <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME</span></code>,
106           due to COM implementation related errors, in Boost 1.48 &amp; Boost 1.49
107           the bootup-time folder was dumped and files were directly created in shared
108           documents folder, reverting to filesystem persistence shared memory. Boost
109           1.50 fixed those issues and recovered bootup time directory and kernel
110           persistence. If you need to reproduce Boost 1.48 &amp; Boost 1.49 behaviour
111           to communicate with applications compiled with that version, comment <code class="computeroutput"><span class="preprocessor">#define</span> <span class="identifier">BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME</span></code>
112           directive in the Windows configuration part of <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">interprocess</span><span class="special">/</span><span class="identifier">detail</span><span class="special">/</span><span class="identifier">workaround</span><span class="special">.</span><span class="identifier">hpp</span></code>.
113         </p>
114 <p>
115           If using the default implementation, (<code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME</span></code>
116           undefined) and the Startup Event is not found, this might be due to some
117           buggy software that floods or erases the event log.
118         </p>
119 <p>
120           In any error case (shared documents folder is not defined or bootup time
121           could not be obtained, the library throws an error. You still can use
122           <span class="bold"><strong>Boost.Interprocess</strong></span> definining your own
123           directory as the shared directory. Just define <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_SHARED_DIR_PATH</span></code>
124           when using the library and that path will be used to place shared memory
125           files.
126         </p>
127 </div>
128 <div class="section">
129 <div class="titlepage"><div><div><h4 class="title">
130 <a name="interprocess.acknowledgements_notes.notes_windows.boost_use_windows_h"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_windows.boost_use_windows_h" title="BOOST_USE_WINDOWS_H support">BOOST_USE_WINDOWS_H
131         support</a>
132 </h4></div></div></div>
133 <p>
134           If <code class="computeroutput"><span class="identifier">BOOST_USE_WINDOWS_H</span></code>
135           is defined, &lt;windows.h&gt; and other windows SDK files are included,
136           otherwise the library declares needed functions and structures to reduce
137           the impact of including those heavy headers.
138         </p>
139 </div>
140 </div>
141 <div class="section">
142 <div class="titlepage"><div><div><h3 class="title">
143 <a name="interprocess.acknowledgements_notes.notes_linux"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_linux" title="Notes for Linux users">Notes
144       for Linux users</a>
145 </h3></div></div></div>
146 <div class="toc"><dl class="toc">
147 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_linux.notes_linux_shm_folder">Shared
148         memory emulation folder</a></span></dt>
149 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_linux.notes_linux_overcommit">Overcommit</a></span></dt>
150 </dl></div>
151 <div class="section">
152 <div class="titlepage"><div><div><h4 class="title">
153 <a name="interprocess.acknowledgements_notes.notes_linux.notes_linux_shm_folder"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_linux.notes_linux_shm_folder" title="Shared memory emulation folder">Shared
154         memory emulation folder</a>
155 </h4></div></div></div>
156 <p>
157           On systems without POSIX shared memory support shared memory objects are
158           implemented as memory mapped files, using a directory placed in "/tmp"
159           that can include (if <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME</span></code>
160           is defined) the last bootup time (if the Os supports it). As in Windows,
161           in any error case obtaining this directory the library throws an error
162           . You still can use <span class="bold"><strong>Boost.Interprocess</strong></span>
163           definining your own directory as the shared directory. Just define <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_SHARED_DIR_PATH</span></code> when
164           using the library and that path will be used to place shared memory files.
165         </p>
166 </div>
167 <div class="section">
168 <div class="titlepage"><div><div><h4 class="title">
169 <a name="interprocess.acknowledgements_notes.notes_linux.notes_linux_overcommit"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.notes_linux.notes_linux_overcommit" title="Overcommit">Overcommit</a>
170 </h4></div></div></div>
171 <p>
172           The committed address space is the total amount of virtual memory (swap
173           or physical memory/RAM) that the kernel might have to supply if all applications
174           decide to access all of the memory they've requested from the kernel. By
175           default, Linux allows processes to commit more virtual memory than available
176           in the system. If that memory is not accessed, no physical memory + swap
177           is actually used.
178         </p>
179 <p>
180           The reason for this behaviour is that Linux tries to optimize memory usage
181           on forked processes; fork() creates a full copy of the process space, but
182           with overcommitted memory, in this new forked instance only pages which
183           have been written to actually need to be allocated by the kernel. If applications
184           access more memory than available, then the kernel must free memory in
185           the hard way: the OOM (Out Of Memory)-killer picks some processes to kill
186           in order to recover memory.
187         </p>
188 <p>
189           <span class="bold"><strong>Boost.Interprocess</strong></span> has no way to change
190           this behaviour and users might suffer the OOM-killer when accessing shared
191           memory. According to the <a href="http://www.kernel.org/doc/Documentation/vm/overcommit-accounting" target="_top">Kernel
192           documentation</a>, the Linux kernel supports several overcommit modes.
193           If you need non-kill guarantees in your application, you should change
194           this overcommit behaviour.
195         </p>
196 </div>
197 </div>
198 <div class="section">
199 <div class="titlepage"><div><div><h3 class="title">
200 <a name="interprocess.acknowledgements_notes.thanks_to"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.thanks_to" title="Thanks to...">Thanks
201       to...</a>
202 </h3></div></div></div>
203 <p>
204         Many people have contributed with ideas and revisions, so this is the place
205         to thank them:
206       </p>
207 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
208 <li class="listitem">
209             Thanks to all people who have shown interest in the library and have
210             downloaded and tested the snapshots.
211           </li>
212 <li class="listitem">
213             Thanks to <span class="bold"><strong>Francis Andre</strong></span> and <span class="bold"><strong>Anders Hybertz</strong></span> for their ideas and suggestions.
214             Many of them are not implemented yet but I hope to include them when
215             library gets some stability.
216           </li>
217 <li class="listitem">
218             Thanks to <span class="bold"><strong>Matt Doyle</strong></span>, <span class="bold"><strong>Steve
219             LoBasso</strong></span>, <span class="bold"><strong>Glenn Schrader</strong></span>,
220             <span class="bold"><strong>Hiang Swee Chiang</strong></span>, <span class="bold"><strong>Phil
221             Endecott</strong></span>, <span class="bold"><strong>Rene Rivera</strong></span>, <span class="bold"><strong>Harold Pirtle</strong></span>, <span class="bold"><strong>Paul Ryan</strong></span>,
222             <span class="bold"><strong>Shumin Wu</strong></span>, <span class="bold"><strong>Michal
223             Wozniak</strong></span>, <span class="bold"><strong>Peter Johnson</strong></span>,
224             <span class="bold"><strong>Alex Ott</strong></span>, <span class="bold"><strong>Shane
225             Guillory</strong></span>, <span class="bold"><strong>Steven Wooding</strong></span>
226             and <span class="bold"><strong>Kim Barrett</strong></span> for their bug fixes
227             and library testing.
228           </li>
229 <li class="listitem">
230             Thanks to <span class="bold"><strong>Martin Adrian</strong></span> who suggested
231             the use of Interprocess framework for user defined buffers.
232           </li>
233 <li class="listitem">
234             Thanks to <span class="bold"><strong>Synge Todo</strong></span> for his boostbook-doxygen
235             patch to improve Interprocess documentation.
236           </li>
237 <li class="listitem">
238             Thanks to <span class="bold"><strong>Olaf Krzikalla</strong></span> for his Intrusive
239             library. I have taken some ideas to improve red black tree implementation
240             from his library.
241           </li>
242 <li class="listitem">
243             Thanks to <span class="bold"><strong>Daniel James</strong></span> for his unordered_map/set
244             family and his help with allocators. His great unordered implementation
245             has been a reference to design exception safe containers.
246           </li>
247 <li class="listitem">
248             Thanks to <span class="bold"><strong>Howard Hinnant</strong></span> for his amazing
249             help, specially explaining allocator swapping, move semantics and for
250             developing upgradable mutex and lock transfer features.
251           </li>
252 <li class="listitem">
253             Thanks to <span class="bold"><strong>Pavel Vozenilek</strong></span> for his continuous
254             review process, suggestions, code and help. He is the major supporter
255             of Interprocess library. The library has grown with his many and great
256             advices.
257           </li>
258 <li class="listitem">
259             And finally, thank you to all Boosters. <span class="bold"><strong>Long live
260             to C++!</strong></span>
261           </li>
262 </ul></div>
263 </div>
264 <div class="section">
265 <div class="titlepage"><div><div><h3 class="title">
266 <a name="interprocess.acknowledgements_notes.release_notes"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes" title="Release Notes">Release
267       Notes</a>
268 </h3></div></div></div>
269 <div class="toc"><dl class="toc">
270 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_57_00">Boost
271         1.57 Release</a></span></dt>
272 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_56_00">Boost
273         1.56 Release</a></span></dt>
274 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_55_00">Boost
275         1.55 Release</a></span></dt>
276 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_54_00">Boost
277         1.54 Release</a></span></dt>
278 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_53_00">Boost
279         1.53 Release</a></span></dt>
280 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_52_00">Boost
281         1.52 Release</a></span></dt>
282 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_51_00">Boost
283         1.51 Release</a></span></dt>
284 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_50_00">Boost
285         1.50 Release</a></span></dt>
286 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_49_00">Boost
287         1.49 Release</a></span></dt>
288 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_48_00">Boost
289         1.48 Release</a></span></dt>
290 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_46_00">Boost
291         1.46 Release</a></span></dt>
292 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_45_00">Boost
293         1.45 Release</a></span></dt>
294 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_41_00">Boost
295         1.41 Release</a></span></dt>
296 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_40_00">Boost
297         1.40 Release</a></span></dt>
298 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_39_00">Boost
299         1.39 Release</a></span></dt>
300 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_38_00">Boost
301         1.38 Release</a></span></dt>
302 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_37_00">Boost
303         1.37 Release</a></span></dt>
304 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_36_00">Boost
305         1.36 Release</a></span></dt>
306 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_35_00">Boost
307         1.35 Release</a></span></dt>
308 </dl></div>
309 <div class="section">
310 <div class="titlepage"><div><div><h4 class="title">
311 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_57_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_57_00" title="Boost 1.57 Release">Boost
312         1.57 Release</a>
313 </h4></div></div></div>
314 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
315 <li class="listitem">
316               Removed <code class="computeroutput"><span class="identifier">unique_ptr</span></code>,
317               now forwards boost::interprocess::unique_ptr to the general purpose
318               <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">movelib</span><span class="special">::</span><span class="identifier">unique_ptr</span></code> class from <span class="bold"><strong>Boost.Move</strong></span>.
319               This implementation is closer to the standard <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">unique_ptr</span></code>
320               implementation and it's better maintained.
321             </li>
322 <li class="listitem">
323               Fixed bugs:
324               <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
325 <li class="listitem">
326                     <a href="https://svn.boost.org/trac/boost/ticket/10262" target="_top">Trac
327                     #10262 (<span class="emphasis"><em>"AIX 6.1 bug with variable definition
328                     hz"</em></span>)</a>.
329                   </li>
330 <li class="listitem">
331                     <a href="https://svn.boost.org/trac/boost/ticket/10229" target="_top">Trac
332                     #10229 (<span class="emphasis"><em>"Compiling errors in interprocess\detail\os_file_functions.hpp"</em></span>)</a>.
333                   </li>
334 <li class="listitem">
335                     <a href="https://svn.boost.org/trac/boost/ticket/10506" target="_top">Trac
336                     #10506 (<span class="emphasis"><em>"Infinite loop in create_or_open_file"</em></span>)</a>.
337                   </li>
338 <li class="listitem">
339                     <a href="https://github.com/boostorg/interprocess/pull/11" target="_top">GitHub
340                     Pull #11 (<span class="emphasis"><em>"Compile fix for BOOST_USE_WINDOWS_H"</em></span>)</a>.
341                   </li>
342 </ul></div>
343             </li>
344 <li class="listitem">
345               Reorganized Doxygen marks to obtain a better header reference.
346             </li>
347 </ul></div>
348 </div>
349 <div class="section">
350 <div class="titlepage"><div><div><h4 class="title">
351 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_56_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_56_00" title="Boost 1.56 Release">Boost
352         1.56 Release</a>
353 </h4></div></div></div>
354 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
355 <li class="listitem">
356               Fixed bugs:
357               <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
358 <li class="listitem">
359                     <a href="https://svn.boost.org/trac/boost/ticket/9221" target="_top">Trac
360                     #9221 (<span class="emphasis"><em>"message_queue deadlock on linux"</em></span>)</a>.
361                   </li>
362 <li class="listitem">
363                     <a href="https://svn.boost.org/trac/boost/ticket/9226" target="_top">Trac
364                     #9226 (<span class="emphasis"><em>"On some computers, Common Appdata is empty
365                     in registry, so boost interprocess cannot work"</em></span>)</a>.
366                   </li>
367 <li class="listitem">
368                     <a href="https://svn.boost.org/trac/boost/ticket/9262" target="_top">Trac
369                     #9262 (<span class="emphasis"><em>"windows_intermodule_singleton breaks when
370                     calling a Debug dll from a Release executable"</em></span>)</a>.
371                   </li>
372 <li class="listitem">
373                     <a href="https://svn.boost.org/trac/boost/ticket/9284" target="_top">Trac
374                     #9284 (<span class="emphasis"><em>"WaitForSingleObject(mutex) must handle
375                     WAIT_ABANDONED"</em></span>)</a>.
376                   </li>
377 <li class="listitem">
378                     <a href="https://svn.boost.org/trac/boost/ticket/9285" target="_top">Trac
379                     #9285 (<span class="emphasis"><em>"CreateMutex returns NULL if fails"</em></span>)</a>.
380                   </li>
381 <li class="listitem">
382                     <a href="https://svn.boost.org/trac/boost/ticket/9288" target="_top">Trac
383                     #9288 (<span class="emphasis"><em>"timed_wait does not check if it has expired"</em></span>)</a>.
384                   </li>
385 <li class="listitem">
386                     <a href="https://svn.boost.org/trac/boost/ticket/9408" target="_top">Trac
387                     #9408 (<span class="emphasis"><em>"Android does not support XSI_SHARED_MEMORY_OBJECTS"</em></span></a>).
388                   </li>
389 <li class="listitem">
390                     <a href="https://svn.boost.org/trac/boost/ticket/9729" target="_top">Trac
391                     #9729 (<span class="emphasis"><em>"crash on managed_external_buffer object
392                     construction"</em></span></a>).
393                   </li>
394 <li class="listitem">
395                     <a href="https://svn.boost.org/trac/boost/ticket/9767" target="_top">Trac
396                     #9767 (<span class="emphasis"><em>"bootstamp generation causes error in case
397                     of corrupt Windows Event Log"</em></span>)</a>.
398                   </li>
399 <li class="listitem">
400                     <a href="https://svn.boost.org/trac/boost/ticket/9835" target="_top">Trac
401                     #9835 (<span class="emphasis"><em>"Boost Interprocess fails to compile with
402                     Android NDK GCC 4.8, -Werror=unused-variable"</em></span>)</a>.
403                   </li>
404 <li class="listitem">
405                     <a href="https://svn.boost.org/trac/boost/ticket/9911" target="_top">Trac
406                     #9911 (<span class="emphasis"><em>"get_tmp_base_dir(...) failure"</em></span>)</a>.
407                   </li>
408 <li class="listitem">
409                     <a href="https://svn.boost.org/trac/boost/ticket/9946" target="_top">Trac
410                     #9946 (<span class="emphasis"><em>"ret_ptr uninitialized in init_atomic_func,
411                     fini_atomic_func"</em></span>)</a>.
412                   </li>
413 <li class="listitem">
414                     <a href="https://svn.boost.org/trac/boost/ticket/10011" target="_top">Trac
415                     #10011 (<span class="emphasis"><em>"segment_manager::find( unique_instance_t*
416                     ) fails to compile"</em></span>)</a>.
417                   </li>
418 <li class="listitem">
419                     <a href="https://svn.boost.org/trac/boost/ticket/10021" target="_top">Trac
420                     #10021 (<span class="emphasis"><em>"Interprocess and BOOST_USE_WINDOWS_H"</em></span>)</a>.
421                   </li>
422 <li class="listitem">
423                     <a href="https://svn.boost.org/trac/boost/ticket/10230" target="_top">Trac
424                     #10230 (<span class="emphasis"><em>"No Sleep in interprocess::winapi"</em></span>)</a>.
425                   </li>
426 <li class="listitem">
427                     <a href="https://github.com/boostorg/interprocess/pull/2" target="_top">GitHub
428                     Pull #2</a> (<span class="emphasis"><em>"Provide support for the Cray
429                     C++ compiler. The Cray compiler defines __GNUC__"</em></span>]).
430                   </li>
431 <li class="listitem">
432                     <a href="https://github.com/boostorg/interprocess/pull/3" target="_top">GitHub
433                     Pull #3</a> (<span class="emphasis"><em>"Fix/mingw interprocess_exception
434                     throw in file_wrapper::priv_open_or_create"</em></span>]).
435                   </li>
436 </ul></div>
437             </li>
438 <li class="listitem">
439               <span class="bold"><strong>ABI breaking</strong></span>: <a href="https://svn.boost.org/trac/boost/ticket/9221" target="_top">#9221</a>
440               showed that <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_MSG_QUEUE_CIRCULAR_INDEX</span></code>
441               option of message queue, was completely broken so an ABI break was
442               necessary to have a working implementation.
443             </li>
444 <li class="listitem">
445               Simplified, refactored and unified (timed_)lock code based on try_lock().
446               There were several bugs when handling timeout expirations.
447             </li>
448 <li class="listitem">
449               Changed the implementation of condition variables' destructors to allow
450               POSIX semantics (the condition variable can be destroyed after all
451               waiting threads have been woken up)..
452             </li>
453 <li class="listitem">
454               Added <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_SHARED_DIR_PATH</span></code>
455               option to define the shared directory used to place shared memory objects
456               when implemented as memory mapped files.
457             </li>
458 <li class="listitem">
459               Added support for <code class="computeroutput"><span class="identifier">BOOST_USE_WINDOWS_H</span></code>.
460               When this macro is defined Interprocess does not declare used Windows
461               API function and types, includes all needed windows SDK headers and
462               uses types and functions declared by the Windows SDK.
463             </li>
464 <li class="listitem">
465               Added <code class="computeroutput"><span class="identifier">get_size</span></code> to
466               <code class="computeroutput">::boost:interprocess:windows_shared_memory</code>.
467             </li>
468 </ul></div>
469 </div>
470 <div class="section">
471 <div class="titlepage"><div><div><h4 class="title">
472 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_55_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_55_00" title="Boost 1.55 Release">Boost
473         1.55 Release</a>
474 </h4></div></div></div>
475 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
476               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/7156" target="_top">#7156</a>
477               (<span class="emphasis"><em>"interprocess buffer streams leak memory on construction"</em></span>]).
478               <a href="https://svn.boost.org/trac/boost/ticket/7164" target="_top">#7164</a>
479               (<span class="emphasis"><em>"Two potential bugs with b::int::vector of b::i::weak_ptr"</em></span>]).
480               <a href="https://svn.boost.org/trac/boost/ticket/7860" target="_top">#7860</a>
481               (<span class="emphasis"><em>"smart_ptr's yield_k and spinlock utilities can improve
482               spinlock-based sychronization primitives"</em></span>]). <a href="https://svn.boost.org/trac/boost/ticket/8277" target="_top">#8277</a> (<span class="emphasis"><em>"docs
483               for named_mutex erroneously refer to interprocess_mutex"</em></span>]).
484               <a href="https://svn.boost.org/trac/boost/ticket/8976" target="_top">#8976</a>
485               (<span class="emphasis"><em>"shared_ptr fails to compile if used with a scoped_allocator"</em></span>]).
486               <a href="https://svn.boost.org/trac/boost/ticket/9008" target="_top">#9008</a>
487               (<span class="emphasis"><em>"conditions variables fast enough only when opening
488               a multiprocess browser"</em></span>]). <a href="https://svn.boost.org/trac/boost/ticket/9065" target="_top">#9065</a>
489               (<span class="emphasis"><em>"atomic_cas32 inline assembly wrong on ppc32"</em></span>]).
490               <a href="https://svn.boost.org/trac/boost/ticket/9073" target="_top">#9073</a>
491               (<span class="emphasis"><em>"Conflict names 'realloc'"</em></span>]).
492             </li></ul></div>
493 </div>
494 <div class="section">
495 <div class="titlepage"><div><div><h4 class="title">
496 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_54_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_54_00" title="Boost 1.54 Release">Boost
497         1.54 Release</a>
498 </h4></div></div></div>
499 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
500 <li class="listitem">
501               Added support for platform-specific flags to mapped_region (ticket
502               #8030)
503             </li>
504 <li class="listitem">
505               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/7484" target="_top">#7484</a>,
506               <a href="https://svn.boost.org/trac/boost/ticket/7598" target="_top">#7598</a>,
507               <a href="https://svn.boost.org/trac/boost/ticket/7682" target="_top">#7682</a>,
508               <a href="https://svn.boost.org/trac/boost/ticket/7923" target="_top">#7923</a>,
509               <a href="https://svn.boost.org/trac/boost/ticket/7924" target="_top">#7924</a>,
510               <a href="https://svn.boost.org/trac/boost/ticket/7928" target="_top">#7928</a>,
511               <a href="https://svn.boost.org/trac/boost/ticket/7936" target="_top">#7936</a>,
512               <a href="https://svn.boost.org/trac/boost/ticket/8521" target="_top">#8521</a>,
513               <a href="https://svn.boost.org/trac/boost/ticket/8595" target="_top">#8595</a>.
514             </li>
515 <li class="listitem">
516               <span class="bold"><strong>ABI breaking</strong></span>: Changed bootstamp function
517               in Windows to use EventLog service start time as system bootup time.
518               Previously used <code class="computeroutput"><span class="identifier">LastBootupTime</span></code>
519               from WMI was unstable with time synchronization and hibernation and
520               unusable in practice. If you really need to obtain pre Boost 1.54 behaviour
521               define <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME</span></code>
522               from command line or <code class="computeroutput"><span class="identifier">detail</span><span class="special">/</span><span class="identifier">workaround</span><span class="special">.</span><span class="identifier">hpp</span></code>.
523             </li>
524 </ul></div>
525 </div>
526 <div class="section">
527 <div class="titlepage"><div><div><h4 class="title">
528 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_53_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_53_00" title="Boost 1.53 Release">Boost
529         1.53 Release</a>
530 </h4></div></div></div>
531 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
532 <li class="listitem">
533               Fixed GCC -Wshadow warnings.
534             </li>
535 <li class="listitem">
536               Experimental multiple allocation interface improved and changed again.
537               Still unstable.
538             </li>
539 <li class="listitem">
540               Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.
541             </li>
542 <li class="listitem">
543               <span class="bold"><strong>ABI breaking</strong></span>: changed node pool allocators
544               internals for improved efficiency.
545             </li>
546 <li class="listitem">
547               Fixed bug <a href="https://svn.boost.org/trac/boost/ticket/7795" target="_top">#7795</a>.
548             </li>
549 </ul></div>
550 </div>
551 <div class="section">
552 <div class="titlepage"><div><div><h4 class="title">
553 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_52_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_52_00" title="Boost 1.52 Release">Boost
554         1.52 Release</a>
555 </h4></div></div></div>
556 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
557 <li class="listitem">
558               Added <code class="computeroutput"><span class="identifier">shrink_by</span></code> and
559               <code class="computeroutput"><span class="identifier">advise</span></code> functions in
560               <code class="computeroutput"><span class="identifier">mapped_region</span></code>.
561             </li>
562 <li class="listitem">
563               <span class="bold"><strong>ABI breaking:</strong></span> Reimplemented <code class="computeroutput"><span class="identifier">message_queue</span></code> with a circular buffer
564               index (the old behavior used an ordered array, leading to excessive
565               copies). This should greatly increase performance but breaks ABI. Old
566               behaviour/ABI can be used undefining macro <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_MSG_QUEUE_CIRCULAR_INDEX</span></code>
567               in <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">interprocess</span><span class="special">/</span><span class="identifier">detail</span><span class="special">/</span><span class="identifier">workaround</span><span class="special">.</span><span class="identifier">hpp</span></code>
568             </li>
569 <li class="listitem">
570               Improved <code class="computeroutput"><span class="identifier">message_queue</span></code>
571               insertion time avoiding priority search for common cases (both array
572               and circular buffer configurations).
573             </li>
574 <li class="listitem">
575               Implemented <code class="computeroutput"><span class="identifier">interproces_sharable_mutex</span></code>
576               and <code class="computeroutput"><span class="identifier">interproces_condition_any</span></code>.
577             </li>
578 <li class="listitem">
579               Improved <code class="computeroutput"><span class="identifier">offset_ptr</span></code>
580               performance.
581             </li>
582 <li class="listitem">
583               Added integer overflow checks.
584             </li>
585 </ul></div>
586 </div>
587 <div class="section">
588 <div class="titlepage"><div><div><h4 class="title">
589 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_51_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_51_00" title="Boost 1.51 Release">Boost
590         1.51 Release</a>
591 </h4></div></div></div>
592 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
593 <li class="listitem">
594               Synchronous and asynchronous flushing for <code class="computeroutput"><span class="identifier">mapped_region</span><span class="special">::</span><span class="identifier">flush</span></code>.
595             </li>
596 <li class="listitem">
597               <span class="bold"><strong>Source &amp; ABI breaking</strong></span>: Removed
598               <code class="computeroutput"><span class="identifier">get_offset</span></code> method from
599               <code class="computeroutput"><span class="identifier">mapped_region</span></code> as it
600               has no practical utility and <code class="computeroutput"><span class="identifier">m_offset</span></code>
601               member was not for anything else.
602             </li>
603 <li class="listitem">
604               <span class="bold"><strong>Source &amp; ABI breaking</strong></span>: Removed
605               <code class="computeroutput"><span class="identifier">flush</span></code> from <code class="computeroutput"><span class="identifier">managed_shared_memory</span></code>. as it is unspecified
606               according to POSIX: <a href="http://pubs.opengroup.org/onlinepubs/009695399/functions/msync.html" target="_top"><span class="emphasis"><em>"The
607               effect of msync() on a shared memory object or a typed memory object
608               is unspecified"</em></span> </a>.
609             </li>
610 <li class="listitem">
611               Fixed bug <a href="https://svn.boost.org/trac/boost/ticket/7152" target="_top">#7152</a>,
612             </li>
613 </ul></div>
614 </div>
615 <div class="section">
616 <div class="titlepage"><div><div><h4 class="title">
617 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_50_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_50_00" title="Boost 1.50 Release">Boost
618         1.50 Release</a>
619 </h4></div></div></div>
620 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
621 <li class="listitem">
622               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/3750" target="_top">#3750</a>,
623               <a href="https://svn.boost.org/trac/boost/ticket/6727" target="_top">#6727</a>,
624               <a href="https://svn.boost.org/trac/boost/ticket/6648" target="_top">#6648</a>,
625             </li>
626 <li class="listitem">
627               Shared memory in windows has again kernel persistence: kernel bootstamp
628               and WMI has received some fixes and optimizations. This causes incompatibility
629               with Boost 1.48 and 1.49 but the user can comment <code class="computeroutput"><span class="preprocessor">#define</span>
630               <span class="identifier">BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME</span></code>
631               in the windows configuration part to get Boost 1.48 &amp; Boost 1.49
632               behaviour.
633             </li>
634 </ul></div>
635 </div>
636 <div class="section">
637 <div class="titlepage"><div><div><h4 class="title">
638 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_49_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_49_00" title="Boost 1.49 Release">Boost
639         1.49 Release</a>
640 </h4></div></div></div>
641 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
642 <li class="listitem">
643               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/6531" target="_top">#6531</a>,
644               <a href="https://svn.boost.org/trac/boost/ticket/6412" target="_top">#6412</a>,
645               <a href="https://svn.boost.org/trac/boost/ticket/6398" target="_top">#6398</a>,
646               <a href="https://svn.boost.org/trac/boost/ticket/6340" target="_top">#6340</a>,
647               <a href="https://svn.boost.org/trac/boost/ticket/6319" target="_top">#6319</a>,
648               <a href="https://svn.boost.org/trac/boost/ticket/6287" target="_top">#6287</a>,
649               <a href="https://svn.boost.org/trac/boost/ticket/6265" target="_top">#6265</a>,
650               <a href="https://svn.boost.org/trac/boost/ticket/6233" target="_top">#6233</a>,
651               <a href="https://svn.boost.org/trac/boost/ticket/6147" target="_top">#6147</a>,
652               <a href="https://svn.boost.org/trac/boost/ticket/6134" target="_top">#6134</a>,
653               <a href="https://svn.boost.org/trac/boost/ticket/6058" target="_top">#6058</a>,
654               <a href="https://svn.boost.org/trac/boost/ticket/6054" target="_top">#6054</a>,
655               <a href="https://svn.boost.org/trac/boost/ticket/5772" target="_top">#5772</a>,
656               <a href="https://svn.boost.org/trac/boost/ticket/5738" target="_top">#5738</a>,
657               <a href="https://svn.boost.org/trac/boost/ticket/5622" target="_top">#5622</a>,
658               <a href="https://svn.boost.org/trac/boost/ticket/5552" target="_top">#5552</a>,
659               <a href="https://svn.boost.org/trac/boost/ticket/5518" target="_top">#5518</a>,
660               <a href="https://svn.boost.org/trac/boost/ticket/4655" target="_top">#4655</a>,
661               <a href="https://svn.boost.org/trac/boost/ticket/4452" target="_top">#4452</a>,
662               <a href="https://svn.boost.org/trac/boost/ticket/4383" target="_top">#4383</a>,
663               <a href="https://svn.boost.org/trac/boost/ticket/4297" target="_top">#4297</a>.
664             </li>
665 <li class="listitem">
666               Fixed timed functions in mutex implementations to fulfill POSIX requirements:
667               <span class="emphasis"><em>Under no circumstance shall the function fail with a timeout
668               if the mutex can be locked immediately. The validity of the abs_timeout
669               parameter need not be checked if the mutex can be locked immediately.</em></span>
670             </li>
671 </ul></div>
672 </div>
673 <div class="section">
674 <div class="titlepage"><div><div><h4 class="title">
675 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_48_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_48_00" title="Boost 1.48 Release">Boost
676         1.48 Release</a>
677 </h4></div></div></div>
678 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
679 <li class="listitem">
680               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/2796" target="_top">#2796</a>,
681               <a href="https://svn.boost.org/trac/boost/ticket/4031" target="_top">#4031</a>,
682               <a href="https://svn.boost.org/trac/boost/ticket/4251" target="_top">#4251</a>,
683               <a href="https://svn.boost.org/trac/boost/ticket/4452" target="_top">#4452</a>,
684               <a href="https://svn.boost.org/trac/boost/ticket/4895" target="_top">#4895</a>,
685               <a href="https://svn.boost.org/trac/boost/ticket/5077" target="_top">#5077</a>,
686               <a href="https://svn.boost.org/trac/boost/ticket/5120" target="_top">#5120</a>,
687               <a href="https://svn.boost.org/trac/boost/ticket/5123" target="_top">#5123</a>,
688               <a href="https://svn.boost.org/trac/boost/ticket/5230" target="_top">#5230</a>,
689               <a href="https://svn.boost.org/trac/boost/ticket/5197" target="_top">#5197</a>,
690               <a href="https://svn.boost.org/trac/boost/ticket/5287" target="_top">#5287</a>,
691               <a href="https://svn.boost.org/trac/boost/ticket/5294" target="_top">#5294</a>,
692               <a href="https://svn.boost.org/trac/boost/ticket/5306" target="_top">#5306</a>,
693               <a href="https://svn.boost.org/trac/boost/ticket/5308" target="_top">#5308</a>,
694               <a href="https://svn.boost.org/trac/boost/ticket/5392" target="_top">#5392</a>,
695               <a href="https://svn.boost.org/trac/boost/ticket/5409" target="_top">#5409</a>,
696             </li>
697 <li class="listitem">
698               Added support to customize offset_ptr and allow creating custom managed
699               segments that might be shared between 32 and 64 bit processes.
700             </li>
701 <li class="listitem">
702               Shared memory in windows has again filesystem lifetime: kernel bootstamp
703               and WMI use to get a reliable timestamp was causing a lot of trouble.
704             </li>
705 </ul></div>
706 </div>
707 <div class="section">
708 <div class="titlepage"><div><div><h4 class="title">
709 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_46_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_46_00" title="Boost 1.46 Release">Boost
710         1.46 Release</a>
711 </h4></div></div></div>
712 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
713               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/4557" target="_top">#4557</a>,
714               <a href="https://svn.boost.org/trac/boost/ticket/4979" target="_top">#4979</a>,
715               <a href="https://svn.boost.org/trac/boost/ticket/4907" target="_top">#4907</a>,
716               <a href="https://svn.boost.org/trac/boost/ticket/4895" target="_top">#4895</a>.
717             </li></ul></div>
718 </div>
719 <div class="section">
720 <div class="titlepage"><div><div><h4 class="title">
721 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_45_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_45_00" title="Boost 1.45 Release">Boost
722         1.45 Release</a>
723 </h4></div></div></div>
724 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
725 <li class="listitem">
726               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/1080" target="_top">#1080</a>,
727               <a href="https://svn.boost.org/trac/boost/ticket/3284" target="_top">#3284</a>,
728               <a href="https://svn.boost.org/trac/boost/ticket/3439" target="_top">#3439</a>,
729               <a href="https://svn.boost.org/trac/boost/ticket/3448" target="_top">#3448</a>,
730               <a href="https://svn.boost.org/trac/boost/ticket/3582" target="_top">#3582</a>,
731               <a href="https://svn.boost.org/trac/boost/ticket/3682" target="_top">#3682</a>,
732               <a href="https://svn.boost.org/trac/boost/ticket/3829" target="_top">#3829</a>,
733               <a href="https://svn.boost.org/trac/boost/ticket/3846" target="_top">#3846</a>,
734               <a href="https://svn.boost.org/trac/boost/ticket/3914" target="_top">#3914</a>,
735               <a href="https://svn.boost.org/trac/boost/ticket/3947" target="_top">#3947</a>,
736               <a href="https://svn.boost.org/trac/boost/ticket/3950" target="_top">#3950</a>,
737               <a href="https://svn.boost.org/trac/boost/ticket/3951" target="_top">#3951</a>,
738               <a href="https://svn.boost.org/trac/boost/ticket/3985" target="_top">#3985</a>,
739               <a href="https://svn.boost.org/trac/boost/ticket/4010" target="_top">#4010</a>,
740               <a href="https://svn.boost.org/trac/boost/ticket/4417" target="_top">#4417</a>,
741               <a href="https://svn.boost.org/trac/boost/ticket/4019" target="_top">#4019</a>,
742               <a href="https://svn.boost.org/trac/boost/ticket/4039" target="_top">#4039</a>,
743               <a href="https://svn.boost.org/trac/boost/ticket/4218" target="_top">#4218</a>,
744               <a href="https://svn.boost.org/trac/boost/ticket/4230" target="_top">#4230</a>,
745               <a href="https://svn.boost.org/trac/boost/ticket/4250" target="_top">#4250</a>,
746               <a href="https://svn.boost.org/trac/boost/ticket/4297" target="_top">#4297</a>,
747               <a href="https://svn.boost.org/trac/boost/ticket/4350" target="_top">#4350</a>,
748               <a href="https://svn.boost.org/trac/boost/ticket/4352" target="_top">#4352</a>,
749               <a href="https://svn.boost.org/trac/boost/ticket/4426" target="_top">#4426</a>,
750               <a href="https://svn.boost.org/trac/boost/ticket/4516" target="_top">#4516</a>,
751               <a href="https://svn.boost.org/trac/boost/ticket/4524" target="_top">#4524</a>,
752               <a href="https://svn.boost.org/trac/boost/ticket/4557" target="_top">#4557</a>,
753               <a href="https://svn.boost.org/trac/boost/ticket/4606" target="_top">#4606</a>,
754               <a href="https://svn.boost.org/trac/boost/ticket/4685" target="_top">#4685</a>,
755               <a href="https://svn.boost.org/trac/boost/ticket/4694" target="_top">#4694</a>.
756             </li>
757 <li class="listitem">
758               Added support for standard rvalue reference move semantics (tested
759               on GCC 4.5 and VC10).
760             </li>
761 <li class="listitem">
762               Permissions can be detailed for interprocess named resources.
763             </li>
764 <li class="listitem">
765               <code class="computeroutput"><span class="identifier">mapped_region</span><span class="special">::</span><span class="identifier">flush</span></code> initiates disk flushing but
766               does not guarantee it's completed when returns, since it is not portable.
767             </li>
768 <li class="listitem">
769               FreeBSD and MacOS now use posix semaphores to implement named semaphores
770               and mutex.
771             </li>
772 </ul></div>
773 </div>
774 <div class="section">
775 <div class="titlepage"><div><div><h4 class="title">
776 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_41_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_41_00" title="Boost 1.41 Release">Boost
777         1.41 Release</a>
778 </h4></div></div></div>
779 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
780 <li class="listitem">
781               Support for POSIX shared memory in Mac OS.
782             </li>
783 <li class="listitem">
784               <span class="bold"><strong>ABI breaking</strong></span>: Generic <code class="computeroutput"><span class="identifier">semaphore</span></code> and <code class="computeroutput"><span class="identifier">named_semaphore</span></code>
785               now implemented more efficiently with atomic operations.
786             </li>
787 <li class="listitem">
788               More robust file opening in Windows platforms with active Anti-virus
789               software.
790             </li>
791 </ul></div>
792 </div>
793 <div class="section">
794 <div class="titlepage"><div><div><h4 class="title">
795 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_40_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_40_00" title="Boost 1.40 Release">Boost
796         1.40 Release</a>
797 </h4></div></div></div>
798 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
799 <li class="listitem">
800               Windows shared memory is created in Shared Documents folder so that
801               it can be shared between services and processes
802             </li>
803 <li class="listitem">
804               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/2967" target="_top">#2967</a>,
805               <a href="https://svn.boost.org/trac/boost/ticket/2973" target="_top">#2973</a>,
806               <a href="https://svn.boost.org/trac/boost/ticket/2992" target="_top">#2992</a>,
807               <a href="https://svn.boost.org/trac/boost/ticket/3138" target="_top">#3138</a>,
808               <a href="https://svn.boost.org/trac/boost/ticket/3166" target="_top">#3166</a>,
809               <a href="https://svn.boost.org/trac/boost/ticket/3205" target="_top">#3205</a>.
810             </li>
811 </ul></div>
812 </div>
813 <div class="section">
814 <div class="titlepage"><div><div><h4 class="title">
815 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_39_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_39_00" title="Boost 1.39 Release">Boost
816         1.39 Release</a>
817 </h4></div></div></div>
818 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
819 <li class="listitem">
820               Added experimental <code class="computeroutput"><span class="identifier">stable_vector</span></code>
821               container.
822             </li>
823 <li class="listitem">
824               <code class="computeroutput"><span class="identifier">shared_memory_object</span><span class="special">::</span><span class="identifier">remove</span></code>
825               has now POSIX <code class="computeroutput"><span class="identifier">unlink</span></code>
826               semantics and <code class="computeroutput"><span class="identifier">file_mapping</span><span class="special">::</span><span class="identifier">remove</span></code>
827               was added to obtain POSIX <code class="computeroutput"><span class="identifier">unlink</span></code>
828               semantics with mapped files.
829             </li>
830 <li class="listitem">
831               Shared memory in windows has now kernel lifetime instead of filesystem
832               lifetime: shared memory will disappear when the system reboots.
833             </li>
834 <li class="listitem">
835               Updated move semantics.
836             </li>
837 <li class="listitem">
838               Fixed bugs <a href="https://svn.boost.org/trac/boost/ticket/2722" target="_top">#2722</a>,
839               <a href="https://svn.boost.org/trac/boost/ticket/2729" target="_top">#2729</a>,
840               <a href="https://svn.boost.org/trac/boost/ticket/2766" target="_top">#2766</a>,
841               <a href="https://svn.boost.org/trac/boost/ticket/1390" target="_top">#1390</a>,
842               <a href="https://svn.boost.org/trac/boost/ticket/2589" target="_top">#2589</a>,
843             </li>
844 </ul></div>
845 </div>
846 <div class="section">
847 <div class="titlepage"><div><div><h4 class="title">
848 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_38_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_38_00" title="Boost 1.38 Release">Boost
849         1.38 Release</a>
850 </h4></div></div></div>
851 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
852 <li class="listitem">
853               Updated documentation to show rvalue-references funcions instead of
854               emulation functions.
855             </li>
856 <li class="listitem">
857               More non-copyable classes are now movable.
858             </li>
859 <li class="listitem">
860               Move-constructor and assignments now leave moved object in default-constructed
861               state instead of just swapping contents.
862             </li>
863 <li class="listitem">
864               Several bugfixes ( <a href="https://svn.boost.org/trac/boost/ticket/2391" target="_top">#2391</a>,
865               <a href="https://svn.boost.org/trac/boost/ticket/2431" target="_top">#2431</a>,
866               <a href="https://svn.boost.org/trac/boost/ticket/1390" target="_top">#1390</a>,
867               <a href="https://svn.boost.org/trac/boost/ticket/2570" target="_top">#2570</a>,
868               <a href="https://svn.boost.org/trac/boost/ticket/2528" target="_top">#2528</a>.
869             </li>
870 </ul></div>
871 </div>
872 <div class="section">
873 <div class="titlepage"><div><div><h4 class="title">
874 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_37_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_37_00" title="Boost 1.37 Release">Boost
875         1.37 Release</a>
876 </h4></div></div></div>
877 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
878 <li class="listitem">
879               Containers can be used now in recursive types.
880             </li>
881 <li class="listitem">
882               Added <code class="computeroutput"><span class="identifier">BOOST_INTERPROCESS_FORCE_GENERIC_EMULATION</span></code>
883               macro option to force the use of generic emulation code for process-shared
884               synchronization primitives instead of native POSIX functions.
885             </li>
886 <li class="listitem">
887               Added placement insertion members to containers
888             </li>
889 <li class="listitem">
890               <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">posix_time</span><span class="special">::</span><span class="identifier">pos_inf</span></code> value is now handled portably
891               for timed functions.
892             </li>
893 <li class="listitem">
894               Update some function parameters from <code class="computeroutput"><span class="identifier">iterator</span></code>
895               to <code class="computeroutput"><span class="identifier">const_iterator</span></code> in
896               containers to keep up with the draft of the next standard.
897             </li>
898 <li class="listitem">
899               Documentation fixes.
900             </li>
901 </ul></div>
902 </div>
903 <div class="section">
904 <div class="titlepage"><div><div><h4 class="title">
905 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_36_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_36_00" title="Boost 1.36 Release">Boost
906         1.36 Release</a>
907 </h4></div></div></div>
908 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
909 <li class="listitem">
910               Added anonymous shared memory for UNIX systems.
911             </li>
912 <li class="listitem">
913               Fixed erroneous <code class="computeroutput"><span class="keyword">void</span></code> return
914               types from <code class="computeroutput"><span class="identifier">flat_map</span><span class="special">::</span><span class="identifier">erase</span><span class="special">()</span></code> functions.
915             </li>
916 <li class="listitem">
917               Fixed missing move semantics on managed memory classes.
918             </li>
919 <li class="listitem">
920               Added copy_on_write and open_read_only options for shared memory and
921               mapped file managed classes.
922             </li>
923 <li class="listitem">
924               <span class="bold"><strong>ABI breaking</strong></span>: Added to <code class="computeroutput"><span class="identifier">mapped_region</span></code> the mode used to create
925               it.
926             </li>
927 <li class="listitem">
928               Corrected instantiation errors in void allocators.
929             </li>
930 <li class="listitem">
931               <code class="computeroutput"><span class="identifier">shared_ptr</span></code> is movable
932               and supports aliasing.
933             </li>
934 </ul></div>
935 </div>
936 <div class="section">
937 <div class="titlepage"><div><div><h4 class="title">
938 <a name="interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_35_00"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.release_notes.release_notes_boost_1_35_00" title="Boost 1.35 Release">Boost
939         1.35 Release</a>
940 </h4></div></div></div>
941 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
942 <li class="listitem">
943               Added auxiliary utilities to ease the definition and construction of
944               <code class="computeroutput"><a class="link" href="../boost/interprocess/shared_ptr.html" title="Class template shared_ptr">shared_ptr</a></code>,
945               <code class="computeroutput"><a class="link" href="../boost/interprocess/weak_ptr.html" title="Class template weak_ptr">weak_ptr</a></code>
946               and <code class="computeroutput"><span class="identifier">unique_ptr</span></code>. Added
947               explanations and examples of these smart pointers in the documentation.
948             </li>
949 <li class="listitem">
950               Optimized vector:
951               <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
952 <li class="listitem">
953                     1) Now works with raw pointers as much as possible when using
954                     allocators defining <code class="computeroutput"><span class="identifier">pointer</span></code>
955                     as an smart pointer. This increases performance and improves
956                     compilation times.
957                   </li>
958 <li class="listitem">
959                     2) A bit of metaprogramming to avoid using move_iterator when
960                     the type has trivial copy constructor or assignment and improve
961                     performance.
962                   </li>
963 <li class="listitem">
964                     3) Changed custom algorithms with standard ones to take advantage
965                     of optimized standard algorithms.
966                   </li>
967 <li class="listitem">
968                     4) Removed unused code.
969                   </li>
970 </ul></div>
971             </li>
972 <li class="listitem">
973               <span class="bold"><strong>ABI breaking</strong></span>: Containers don't derive
974               from allocators, to avoid problems with allocators that might define
975               virtual functions with the same names as container member functions.
976               That would convert container functions in virtual functions and might
977               disallow some of them if the returned type does not lead to a covariant
978               return. Allocators are now stored as base classes of internal structs.
979             </li>
980 <li class="listitem">
981               Implemented <code class="computeroutput"><a class="link" href="../boost/interprocess/named_mutex.html" title="Class named_mutex">named_mutex</a></code>
982               and <code class="computeroutput"><a class="link" href="../boost/interprocess/named_semaphore.html" title="Class named_semaphore">named_semaphore</a></code>
983               with POSIX named semaphores in systems supporting that option. <code class="computeroutput"><a class="link" href="../boost/interprocess/named_condition.html" title="Class named_condition">named_condition</a></code>
984               has been accordingly changed to support interoperability with <code class="computeroutput"><a class="link" href="../boost/interprocess/named_mutex.html" title="Class named_mutex">named_mutex</a></code>.
985             </li>
986 <li class="listitem">
987               Reduced template bloat for node and adaptive allocators extracting
988               node implementation to a class that only depends on the memory algorithm,
989               instead of the segment manager + node size + node number...
990             </li>
991 <li class="listitem">
992               Fixed bug in <code class="computeroutput"><span class="identifier">mapped_region</span></code>
993               in UNIX when mapping address was provided but the region was mapped
994               in another address.
995             </li>
996 <li class="listitem">
997               Added <code class="computeroutput"><span class="identifier">aligned_allocate</span></code>
998               and <code class="computeroutput"><span class="identifier">allocate_many</span></code> functions
999               to managed memory segments.
1000             </li>
1001 <li class="listitem">
1002               Improved documentation about managed memory segments.
1003             </li>
1004 <li class="listitem">
1005               <span class="bold"><strong>Boost.Interprocess</strong></span> containers are
1006               now documented in the Reference section.
1007             </li>
1008 <li class="listitem">
1009               Correction of typos and documentation errors.
1010             </li>
1011 <li class="listitem">
1012               Added <code class="computeroutput"><span class="identifier">get_instance_name</span></code>,
1013               <code class="computeroutput"><span class="identifier">get_instance_length</span></code>
1014               and <code class="computeroutput"><span class="identifier">get_instance_type</span></code>
1015               functions to managed memory segments.
1016             </li>
1017 <li class="listitem">
1018               Corrected suboptimal buffer expansion bug in <code class="computeroutput"><span class="identifier">rbtree_best_fit</span></code>.
1019             </li>
1020 <li class="listitem">
1021               Added iteration of named and unique objects in a segment manager.
1022             </li>
1023 <li class="listitem">
1024               Fixed leak in <code class="computeroutput">vector</code>.
1025             </li>
1026 <li class="listitem">
1027               Added support for Solaris.
1028             </li>
1029 <li class="listitem">
1030               Optimized <code class="computeroutput"><a class="link" href="../boost/interprocess/segment_manager.html" title="Class template segment_manager">segment_manager</a></code>
1031               to avoid code bloat associated with templated instantiations.
1032             </li>
1033 <li class="listitem">
1034               Fixed bug for UNIX: No slash ('/') was being added as the first character
1035               for shared memory names, leading to errors in some UNIX systems.
1036             </li>
1037 <li class="listitem">
1038               Fixed bug in VC-8.0: Broken function inlining in core offset_ptr functions.
1039             </li>
1040 <li class="listitem">
1041               Code examples changed to use new BoostBook code import features.
1042             </li>
1043 <li class="listitem">
1044               Added aligned memory allocation function to memory algorithms.
1045             </li>
1046 <li class="listitem">
1047               Fixed bug in <code class="computeroutput"><span class="identifier">deque</span><span class="special">::</span><span class="identifier">clear</span><span class="special">()</span></code> and <code class="computeroutput"><span class="identifier">deque</span><span class="special">::</span><span class="identifier">erase</span><span class="special">()</span></code>, they were declared private.
1048             </li>
1049 <li class="listitem">
1050               Fixed bug in <code class="computeroutput"><span class="identifier">deque</span><span class="special">::</span><span class="identifier">erase</span><span class="special">()</span></code>. Thanks to Steve LoBasso.
1051             </li>
1052 <li class="listitem">
1053               Fixed bug in <code class="computeroutput"><span class="identifier">atomic_dec32</span><span class="special">()</span></code>. Thanks to Glenn Schrader.
1054             </li>
1055 <li class="listitem">
1056               Improved (multi)map/(multi)set constructors taking iterators. Now those
1057               have linear time if the iterator range is already sorted.
1058             </li>
1059 <li class="listitem">
1060               <span class="bold"><strong>ABI breaking</strong></span>: (multi)map/(multi)set
1061               now reduce their node size. The color bit is embedded in the parent
1062               pointer. Now, the size of a node is the size of 3 pointers in most
1063               systems. This optimization is activated for raw and <code class="computeroutput"><span class="identifier">offset_ptr</span></code>
1064               pointers.
1065             </li>
1066 <li class="listitem">
1067               (multi)map/(multi)set now reuse memory from old nodes in the assignment
1068               operator.
1069             </li>
1070 <li class="listitem">
1071               <span class="bold"><strong>ABI breaking</strong></span>: Implemented node-containers
1072               based on intrusive containers. This saves code size, since many instantiations
1073               share the same algorithms.
1074             </li>
1075 <li class="listitem">
1076               Corrected code to be compilable with Visual C++ 8.0.
1077             </li>
1078 <li class="listitem">
1079               Added function to zero free memory in memory algorithms and the segment
1080               manager. This function is useful for security reasons and to improve
1081               compression ratios for files created with <code class="computeroutput"><span class="identifier">managed_mapped_file</span></code>.
1082             </li>
1083 <li class="listitem">
1084               Added support for intrusive index types in managed memory segments.
1085               Intrusive indexes save extra memory allocations to allocate the index
1086               since with just one allocation, we allocate room for the value, the
1087               name and the hook to insert the object in the index.
1088             </li>
1089 <li class="listitem">
1090               Created new index type: <span class="bold"><strong>iset_index</strong></span>.
1091               It's an index based on an intrusive set (rb-tree).
1092             </li>
1093 <li class="listitem">
1094               Created new index type: <span class="bold"><strong>iunordered_set_index</strong></span>.
1095               It's an index based on a pseudo-intrusive unordered set (hash table).
1096             </li>
1097 <li class="listitem">
1098               <span class="bold"><strong>ABI breaking</strong></span>: The intrusive index
1099               <span class="bold"><strong>iset_index</strong></span> is now the default index
1100               type.
1101             </li>
1102 <li class="listitem">
1103               Optimized vector to take advantage of <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">has_trivial_destructor</span></code>.
1104               This optimization avoids calling destructors of elements that have
1105               a trivial destructor.
1106             </li>
1107 <li class="listitem">
1108               Optimized vector to take advantage of <code class="computeroutput"><span class="identifier">has_trivial_destructor_after_move</span></code>
1109               trait. This optimization avoids calling destructors of elements that
1110               have a trivial destructor if the element has been moved (which is the
1111               case of many movable types). This trick was provided by Howard Hinnant.
1112             </li>
1113 <li class="listitem">
1114               Added security check to avoid integer overflow bug in allocators and
1115               named construction functions.
1116             </li>
1117 <li class="listitem">
1118               Added alignment checks to forward and backwards expansion functions.
1119             </li>
1120 <li class="listitem">
1121               Fixed bug in atomic functions for PPC.
1122             </li>
1123 <li class="listitem">
1124               Fixed race-condition error when creating and opening a managed segment.
1125             </li>
1126 <li class="listitem">
1127               Added adaptive pools.
1128             </li>
1129 <li class="listitem">
1130               <span class="bold"><strong>Source breaking</strong></span>: Changed node allocators'
1131               template parameter order to make them easier to use.
1132             </li>
1133 <li class="listitem">
1134               Added support for native windows shared memory.
1135             </li>
1136 <li class="listitem">
1137               Added more tests.
1138             </li>
1139 <li class="listitem">
1140               Corrected the presence of private functions in the reference section.
1141             </li>
1142 <li class="listitem">
1143               Added function (<code class="computeroutput"><span class="identifier">deallocate_free_chunks</span><span class="special">()</span></code>) to manually deallocate completely
1144               free chunks from node allocators.
1145             </li>
1146 <li class="listitem">
1147               Implemented N1780 proposal to LWG issue 233: <span class="emphasis"><em>Insertion hints
1148               in associative containers</em></span> in interprocess <code class="computeroutput">multiset</code>
1149               and <code class="computeroutput">multimap</code>
1150               classes.
1151             </li>
1152 <li class="listitem">
1153               <span class="bold"><strong>Source breaking</strong></span>: A shared memory object
1154               is now used including <code class="computeroutput"><span class="identifier">shared_memory_object</span><span class="special">.</span><span class="identifier">hpp</span></code>
1155               header instead of <code class="computeroutput"><span class="identifier">shared</span>
1156               <span class="identifier">memory</span><span class="special">.</span><span class="identifier">hpp</span></code>.
1157             </li>
1158 <li class="listitem">
1159               <span class="bold"><strong>ABI breaking</strong></span>: Changed global mutex
1160               when initializing managed shared memory and memory mapped files. This
1161               change tries to minimize deadlocks.
1162             </li>
1163 <li class="listitem">
1164               <span class="bold"><strong>Source breaking</strong></span>: Changed shared memory,
1165               memory mapped files and mapped region's open mode to a single <code class="computeroutput"><span class="identifier">mode_t</span></code> type.
1166             </li>
1167 <li class="listitem">
1168               Added extra WIN32_LEAN_AND_MEAN before including DateTime headers to
1169               avoid socket redefinition errors when using Interprocess and Asio in
1170               windows.
1171             </li>
1172 <li class="listitem">
1173               <span class="bold"><strong>ABI breaking</strong></span>: <code class="computeroutput"><span class="identifier">mapped_region</span></code>
1174               constructor no longer requires classes derived from memory_mappable,
1175               but classes must fulfill the MemoryMappable concept.
1176             </li>
1177 <li class="listitem">
1178               Added in-place reallocation capabilities to basic_string.
1179             </li>
1180 <li class="listitem">
1181               <span class="bold"><strong>ABI breaking</strong></span>: Reimplemented and optimized
1182               small string optimization. The narrow string class has zero byte overhead
1183               with an internal 11 byte buffer in 32 systems!
1184             </li>
1185 <li class="listitem">
1186               Added move semantics to containers. Improves performance when using
1187               containers of containers.
1188             </li>
1189 <li class="listitem">
1190               <span class="bold"><strong>ABI breaking</strong></span>: End nodes of node containers
1191               (list, slist, map/set) are now embedded in the containers instead of
1192               allocated using the allocator. This allows no-throw move-constructors
1193               and improves performance.
1194             </li>
1195 <li class="listitem">
1196               <span class="bold"><strong>ABI breaking</strong></span>: <span class="bold"><strong>slist</strong></span>
1197               and <span class="bold"><strong>list</strong></span> containers now have constant-time
1198               <span class="emphasis"><em>size()</em></span> function. The size of the container is
1199               added as a member.
1200             </li>
1201 </ul></div>
1202 </div>
1203 </div>
1204 <div class="section">
1205 <div class="titlepage"><div><div><h3 class="title">
1206 <a name="interprocess.acknowledgements_notes.books_and_links"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.books_and_links" title="Books and interesting links">Books
1207       and interesting links</a>
1208 </h3></div></div></div>
1209 <div class="toc"><dl class="toc">
1210 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.books_and_links.references_books">Books</a></span></dt>
1211 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.books_and_links.references_links">Links</a></span></dt>
1212 </dl></div>
1213 <p>
1214         Some useful references about the C++ programming language, C++ internals,
1215         shared memory, allocators and containers used to design <span class="bold"><strong>Boost.Interprocess</strong></span>.
1216       </p>
1217 <div class="section">
1218 <div class="titlepage"><div><div><h4 class="title">
1219 <a name="interprocess.acknowledgements_notes.books_and_links.references_books"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.books_and_links.references_books" title="Books">Books</a>
1220 </h4></div></div></div>
1221 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
1222 <li class="listitem">
1223               Great book about multithreading, and POSIX: <span class="bold"><strong><span class="emphasis"><em>"Programming
1224               with Posix Threads"</em></span></strong></span>, <span class="bold"><strong>David
1225               R. Butenhof</strong></span>
1226             </li>
1227 <li class="listitem">
1228               The UNIX inter-process bible: <span class="bold"><strong><span class="emphasis"><em>"UNIX
1229               Network Programming, Volume 2: Interprocess Communications"</em></span></strong></span>,
1230               <span class="bold"><strong>W. Richard Stevens</strong></span>
1231             </li>
1232 <li class="listitem">
1233               Current STL allocator issues: <span class="bold"><strong><span class="emphasis"><em>"Effective
1234               STL"</em></span></strong></span>, <span class="bold"><strong>Scott Meyers</strong></span>
1235             </li>
1236 <li class="listitem">
1237               My C++ bible: <span class="bold"><strong><span class="emphasis"><em>"Thinking in C++,
1238               Volume 1 &amp; 2"</em></span></strong></span>, <span class="bold"><strong>Bruce
1239               Eckel and Chuck Allison</strong></span>
1240             </li>
1241 <li class="listitem">
1242               The book every C++ programmer should read: <span class="bold"><strong><span class="emphasis"><em>"Inside
1243               the C++ Object Model"</em></span></strong></span>, <span class="bold"><strong>Stanley
1244               B. Lippman</strong></span>
1245             </li>
1246 <li class="listitem">
1247               A must-read: <span class="bold"><strong><span class="emphasis"><em>"ISO/IEC TR 18015:
1248               Technical Report on C++ Performance"</em></span></strong></span>, <span class="bold"><strong>ISO WG21-SC22 members.</strong></span>
1249             </li>
1250 </ul></div>
1251 </div>
1252 <div class="section">
1253 <div class="titlepage"><div><div><h4 class="title">
1254 <a name="interprocess.acknowledgements_notes.books_and_links.references_links"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.books_and_links.references_links" title="Links">Links</a>
1255 </h4></div></div></div>
1256 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
1257 <li class="listitem">
1258               A framework to put the STL in shared memory: <a href="http://allocator.sourceforge.net/" target="_top"><span class="emphasis"><em>"A
1259               C++ Standard Allocator for the Standard Template Library"</em></span>
1260               </a>.
1261             </li>
1262 <li class="listitem">
1263               Instantiating C++ objects in shared memory: <a href="http://www.cs.ubc.ca/local/reading/proceedings/cascon94/htm/english/abs/hon.htm" target="_top"><span class="emphasis"><em>"Using
1264               objects in shared memory for C++ application"</em></span> </a>.
1265             </li>
1266 <li class="listitem">
1267               A shared memory allocator and relative pointer: <a href="http://home.earthlink.net/~joshwalker1/writing/SharedMemory.html" target="_top"><span class="emphasis"><em>"Taming
1268               Shared Memory"</em></span> </a>.
1269             </li>
1270 </ul></div>
1271 </div>
1272 </div>
1273 <div class="section">
1274 <div class="titlepage"><div><div><h3 class="title">
1275 <a name="interprocess.acknowledgements_notes.future_improvements"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements" title="Future improvements...">Future
1276       improvements...</a>
1277 </h3></div></div></div>
1278 <div class="toc"><dl class="toc">
1279 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.win32_sync">Win32
1280         synchronization is too basic</a></span></dt>
1281 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.future_objectnames">Use
1282         of wide character names on Boost.Interprocess basic resources</a></span></dt>
1283 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.future_security">Security
1284         attributes</a></span></dt>
1285 <dt><span class="section"><a href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.future_ipc">Future
1286         inter-process communications</a></span></dt>
1287 </dl></div>
1288 <p>
1289         There are some Interprocess features that I would like to implement and some
1290         <span class="bold"><strong>Boost.Interprocess</strong></span> code that can be much
1291         better. Let's see some ideas:
1292       </p>
1293 <div class="section">
1294 <div class="titlepage"><div><div><h4 class="title">
1295 <a name="interprocess.acknowledgements_notes.future_improvements.win32_sync"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.win32_sync" title="Win32 synchronization is too basic">Win32
1296         synchronization is too basic</a>
1297 </h4></div></div></div>
1298 <p>
1299           Win32 version of shared mutexes and shared conditions are based on "spin
1300           and wait" atomic instructions. This leads to poor performance and
1301           does not manage any issues like priority inversions. We would need very
1302           serious help from threading experts on this. And I'm not sure that this
1303           can be achieved in user-level software. Posix based implementations use
1304           PTHREAD_PROCESS_SHARED attribute to place mutexes in shared memory, so
1305           there are no such problems. I'm not aware of any implementation that simulates
1306           PTHREAD_PROCESS_SHARED attribute for Win32. We should be able to construct
1307           these primitives in memory mapped files, so that we can get filesystem
1308           persistence just like with POSIX primitives.
1309         </p>
1310 </div>
1311 <div class="section">
1312 <div class="titlepage"><div><div><h4 class="title">
1313 <a name="interprocess.acknowledgements_notes.future_improvements.future_objectnames"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.future_objectnames" title="Use of wide character names on Boost.Interprocess basic resources">Use
1314         of wide character names on Boost.Interprocess basic resources</a>
1315 </h4></div></div></div>
1316 <p>
1317           Currently Interprocess only allows <span class="bold"><strong>char</strong></span>
1318           based names for basic named objects. However, several operating systems
1319           use <span class="bold"><strong>wchar_t</strong></span> names for resources (mapped
1320           files, for example). In the future Interprocess should try to present a
1321           portable narrow/wide char interface. To do this, it would be useful to
1322           have a boost wstring &lt;-&gt; string conversion utilities to translate
1323           resource names (escaping needed characters that can conflict with OS names)
1324           in a portable way. It would be interesting also the use of <span class="bold"><strong>boost::filesystem</strong></span>
1325           paths to avoid operating system specific issues.
1326         </p>
1327 </div>
1328 <div class="section">
1329 <div class="titlepage"><div><div><h4 class="title">
1330 <a name="interprocess.acknowledgements_notes.future_improvements.future_security"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.future_security" title="Security attributes">Security
1331         attributes</a>
1332 </h4></div></div></div>
1333 <p>
1334           <span class="bold"><strong>Boost.Interprocess</strong></span> does not define security
1335           attributes for shared memory and synchronization objects. Standard C++
1336           also ignores security attributes with files so adding security attributes
1337           would require some serious work.
1338         </p>
1339 </div>
1340 <div class="section">
1341 <div class="titlepage"><div><div><h4 class="title">
1342 <a name="interprocess.acknowledgements_notes.future_improvements.future_ipc"></a><a class="link" href="acknowledgements_notes.html#interprocess.acknowledgements_notes.future_improvements.future_ipc" title="Future inter-process communications">Future
1343         inter-process communications</a>
1344 </h4></div></div></div>
1345 <p>
1346           <span class="bold"><strong>Boost.Interprocess</strong></span> offers a process-shared
1347           message queue based on <span class="bold"><strong>Boost.Interprocess</strong></span>
1348           primitives like mutexes and conditions. I would want to develop more mechanisms,
1349           like stream-oriented named fifo so that we can use it with a iostream-interface
1350           wrapper (we can imitate Unix pipes).
1351         </p>
1352 <p>
1353           C++ needs more complex mechanisms and it would be nice to have a stream
1354           and datagram oriented PF_UNIX-like mechanism in C++. And for very fast
1355           inter-process remote calls Solaris doors is an interesting alternative
1356           to implement for C++. But the work to implement PF_UNIX-like sockets and
1357           doors would be huge (and it might be difficult in a user-level library).
1358           Any network expert volunteer?
1359         </p>
1360 </div>
1361 </div>
1362 </div>
1363 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
1364 <td align="left"></td>
1365 <td align="right"><div class="copyright-footer">Copyright &#169; 2005-2012 Ion Gaztanaga<p>
1366         Distributed under the Boost Software License, Version 1.0. (See accompanying
1367         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>)
1368       </p>
1369 </div></td>
1370 </tr></table>
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