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</div>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="thread.build"></a><a class="link" href="build.html" title="Using and building the library">Using and building the library</a>
</h2></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="build.html#thread.build.configuration">Configuration</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.limitations">Limitations</a></span></dt>
</dl></div>
<p>
Boost.Thread is configured following the conventions used to build <a href="http://www.boost.org/doc/libs/1_48_0/libs/config/doc/html/boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_for_libraries_with_separate_source_code" target="_top">libraries
with separate source code</a>. Boost.Thread will import/export the code
only if the user has specifically asked for it, by defining either BOOST_ALL_DYN_LINK
if they want all boost libraries to be dynamically linked, or BOOST_THREAD_DYN_LINK
if they want just this one to be dynamically liked.
</p>
<p>
The definition of these macros determines whether BOOST_THREAD_USE_DLL is defined.
If BOOST_THREAD_USE_DLL is not defined, the library will define BOOST_THREAD_USE_DLL
or BOOST_THREAD_USE_LIB depending on whether the platform. On non windows platforms
BOOST_THREAD_USE_LIB is defined if is not defined. In windows platforms, BOOST_THREAD_USE_LIB
is defined if BOOST_THREAD_USE_DLL and the compiler supports auto-tss cleanup
with Boost.Threads (for the time been Msvc and Intel)
</p>
<p>
The source code compiled when building the library defines a macros BOOST_THREAD_SOURCE
that is used to import or export it. The user must not define this macro in
any case.
</p>
<p>
The following section describes all the macros used to configure Boost.Thread.
</p>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="thread.build.configuration"></a><a class="link" href="build.html#thread.build.configuration" title="Configuration">Configuration</a>
</h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="build.html#thread.build.configuration.system">Boost.System</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.chrono">Boost.Chrono</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.move">Boost.Move</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.shared_gen">Shared Locking
Generic</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.shared_upwards">Shared Locking
Upwards Conversion</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.explicit_cnv">Explicit Lock
Conversion</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.future">unique_future versus
future</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.lazy">promise lazy initialization</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.alloc">promise Allocator
constructor</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.terminate">Call to terminate
if joinable</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.once_flag">once_flag</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.deprecated">Deprecated</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.configuration.version">Version</a></span></dt>
</dl></div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.system"></a><a class="link" href="build.html#thread.build.configuration.system" title="Boost.System">Boost.System</a>
</h4></div></div></div>
<p>
Boost.Thread uses by default Boost.System to define the exceptions. For
backward compatibility and also for compilers that don't work well with
Boost.System the user can define <code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_SYSTEM</span>
</code>.
</p>
<p>
<code class="computeroutput"><span class="identifier">BOOST_THREAD_USES_SYSTEM</span></code>
is defined when Boost.Thread uses Boost.Move.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.chrono"></a><a class="link" href="build.html#thread.build.configuration.chrono" title="Boost.Chrono">Boost.Chrono</a>
</h4></div></div></div>
<p>
Boost.Thread uses by default Boost.Chrono for the time related functions.
For backward compatibility and also for compilers that don't work well
with Boost.Chrono the user can define <code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_CHRONO</span></code>.
If <code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_SYSTEM</span></code>
is defined then <code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_CHRONO</span></code>
is defined implicitly.
</p>
<p>
<code class="computeroutput"><span class="identifier">BOOST_THREAD_USES_CHRONO</span></code>
is defined when Boost.Thread uses Boost.Chrono.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.move"></a><a class="link" href="build.html#thread.build.configuration.move" title="Boost.Move">Boost.Move</a>
</h4></div></div></div>
<p>
Boost.Thread uses by default an internal move semantic implementation.
Since version 3.0.0 you can use the move emulation emulation provided by
Boost.Move.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_USES_MOVE</span> </code>
if you want to use Boost.Move interface. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_MOVE</span> </code>
if you want to use boost::unique_future.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.shared_gen"></a><a class="link" href="build.html#thread.build.configuration.shared_gen" title="Shared Locking Generic">Shared Locking
Generic</a>
</h4></div></div></div>
<p>
The shared mutex implementation on Windows platform provides currently
less functionality than the generic one that is used for PTheads based
platforms. In order to have access to these functions, the user needs to
define <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN</span></code>
to use the generic implementation, that while could be less efficient,
provides all the functions.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN</span>
</code> if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_GENERIC_SHARED_MUTEX_ON_WIN</span>
</code> if you don't want these features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.shared_upwards"></a><a class="link" href="build.html#thread.build.configuration.shared_upwards" title="Shared Locking Upwards Conversion">Shared Locking
Upwards Conversion</a>
</h4></div></div></div>
<p>
Boost.Threads includes in version 2 the Shared Locking Upwards Conversion
as defined in <a href="http://home.roadrunner.com/~hinnant/bloomington/shared_mutex.html" target="_top">Shared
Locking</a>. These conversions need to be used carefully to avoid deadlock
or livelock. The user need to define explicitly <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSION</span></code>
to get these upwards conversions.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSION</span>
</code> if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_SHARED_MUTEX_UPWARDS_CONVERSION</span>
</code> if you don't want these features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.explicit_cnv"></a><a class="link" href="build.html#thread.build.configuration.explicit_cnv" title="Explicit Lock Conversion">Explicit Lock
Conversion</a>
</h4></div></div></div>
<p>
In <a href="http://home.roadrunner.com/~hinnant/bloomington/shared_mutex.html" target="_top">Shared
Locking</a> the lock conversions are explicit. As this explicit conversion
breaks the lock interfaces, it is provided only if the <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_EXPLICIT_LOCK_CONVERSION</span></code>
is defined.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_EXPLICIT_LOCK_CONVERSION</span>
</code> if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_EXPLICIT_LOCK_CONVERSION</span>
</code> if you don't want these features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.future"></a><a class="link" href="build.html#thread.build.configuration.future" title="unique_future versus future">unique_future versus
future</a>
</h4></div></div></div>
<p>
C++11 uses <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">future</span></code>. Versions of Boost.Thread previous
to version 3.0.0 uses <code class="computeroutput"><span class="identifier">boost</span><span class="special">:</span><span class="identifier">unique_future</span></code>.
Since version 3.0.0 <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">future</span></code>
replaces <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">unique_future</span></code> when <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_FUTURE</span></code>
is defined. The documentation doesn't contains anymore however <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">unique_future</span></code>.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_FUTURE</span></code>
if you want to use boost::future. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_FUTURE</span></code>
if you want to use boost::unique_future.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.lazy"></a><a class="link" href="build.html#thread.build.configuration.lazy" title="promise lazy initialization">promise lazy initialization</a>
</h4></div></div></div>
<p>
C++11 promise initialize the associated state at construction time. Versions
of Boost.Thread previous to version 3.0.0 initialize it lazily at any point
in time in which this associated state is needed.
</p>
<p>
Since version 3.0.0 this difference in behavior can be configured. When
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_PROMISE_LAZY</span></code>
is defined the backward compatible behavior is provided.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_PROMISE_LAZY</span>
</code> if you want to use boost::future. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_PROMISE_LAZY</span>
</code> if you want to use boost::unique_future.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.alloc"></a><a class="link" href="build.html#thread.build.configuration.alloc" title="promise Allocator constructor">promise Allocator
constructor</a>
</h4></div></div></div>
<p>
C++11 std::promise provides constructors with allocators.
</p>
<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">R</span><span class="special">></span>
<span class="keyword">class</span> <span class="identifier">promise</span>
<span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">></span>
<span class="keyword">explicit</span> <span class="identifier">promise</span><span class="special">(</span><span class="identifier">allocator_arg_t</span><span class="special">,</span> <span class="identifier">Allocator</span> <span class="identifier">a</span><span class="special">);</span>
<span class="comment">// ...</span>
<span class="special">};</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">R</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Alloc</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">uses_allocator</span><span class="special"><</span><span class="identifier">promise</span><span class="special"><</span><span class="identifier">R</span><span class="special">>,</span><span class="identifier">Alloc</span><span class="special">>:</span> <span class="identifier">true_type</span> <span class="special">{};</span>
</pre>
<p>
where
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">allocator_arg_t</span> <span class="special">{</span> <span class="special">};</span>
<span class="identifier">constexpr</span> <span class="identifier">allocator_arg_t</span> <span class="identifier">allocator_arg</span> <span class="special">=</span> <span class="identifier">allocator_arg_t</span><span class="special">();</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Alloc</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">uses_allocator</span><span class="special">;</span>
</pre>
<p>
Since version 3.0.0 Boost.Thread implements this constructor using the
following interface
</p>
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">container</span><span class="special">::</span><span class="identifier">allocator_arg_t</span> <span class="identifier">allocator_arg_t</span><span class="special">;</span>
<span class="identifier">constexpr</span> <span class="identifier">allocator_arg_t</span> <span class="identifier">allocator_arg</span> <span class="special">=</span> <span class="special">{};</span>
<span class="keyword">namespace</span> <span class="identifier">container</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">R</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Alloc</span><span class="special">></span>
<span class="keyword">struct</span> <span class="identifier">uses_allocator</span><span class="special"><</span><span class="identifier">promise</span><span class="special"><</span><span class="identifier">R</span><span class="special">>,</span><span class="identifier">Alloc</span><span class="special">>:</span> <span class="identifier">true_type</span> <span class="special">{};</span>
<span class="special">}</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Alloc</span><span class="special">></span>
<span class="keyword">struct</span> <span class="identifier">uses_allocator</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">container</span><span class="special">::</span><span class="identifier">uses_allocator</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">Alloc</span><span class="special">></span> <span class="special">{};</span>
<span class="special">}</span>
</pre>
<p>
which introduces a dependency on Boost.Container. This feature is provided
only if <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_FUTURE_CTOR_ALLOCATORS</span></code>
is defined.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_FUTURE_CTOR_ALLOCATORS</span>
</code> if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS</span>
</code> if you don't want these features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.terminate"></a><a class="link" href="build.html#thread.build.configuration.terminate" title="Call to terminate if joinable">Call to terminate
if joinable</a>
</h4></div></div></div>
<p>
C++11 has a different semantic for the thread destructor and the move assignment.
Instead of detaching the thread, calls to terminate() if the thread was
joinable. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE</span></code>
and <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE</span></code>
is defined Boost.Thread provides the C++ semantic.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE</span>
</code> if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE</span>
</code> if you don't want these features.
</p>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE</span>
</code> if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE</span>
</code> if you don't want these features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.once_flag"></a><a class="link" href="build.html#thread.build.configuration.once_flag" title="once_flag">once_flag</a>
</h4></div></div></div>
<p>
C++11 defines a default constructor for once_flag. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_ONCE_CXX11</span>
</code> is defined Boost.Thread provides this C++ semantics. In this case,
the previous aggregate syntax is not supported.
</p>
<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">once_flag</span> <span class="identifier">once</span> <span class="special">=</span> <span class="identifier">BOOST_ONCE_INIT</span><span class="special">;</span>
</pre>
<p>
You should now just do
</p>
<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">once_flag</span> <span class="identifier">once</span><span class="special">;</span>
</pre>
<p>
When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">2</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_ONCE_CXX11</span></code>
if you want these features. When <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span><span class="special">==</span><span class="number">3</span></code> define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_ONCE_CXX11</span></code>
if you don't want these features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.deprecated"></a><a class="link" href="build.html#thread.build.configuration.deprecated" title="Deprecated">Deprecated</a>
</h4></div></div></div>
<p>
Version 3.0.0 deprecates some Boost.Thread features.
</p>
<p>
These deprecated features will be provided by default up to boost 1.52.
If you don't want to include the deprecated features you could define
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_DEPRECATED_FEATURES_SINCE_V3_0_0</span></code>.
Since 1.53 these features will not be included any more by default. Since
this version, if you want to include the deprecated features yet you could
define <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDE_DEPRECATED_FEATURES_SINCE_V3_0_0</span></code>.
These deprecated features will be only available until boost 1.55, that
is you have 1 year and a half to move to the new features.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.configuration.version"></a><a class="link" href="build.html#thread.build.configuration.version" title="Version">Version</a>
</h4></div></div></div>
<p>
<code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span></code> defines
the Boost.Thread version. The default version is 2. In this case the following
breaking or extending macros are defined if the opposite is not requested:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_PROMISE_LAZY</span></code>
</li>
<li class="listitem">
<code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_DEPRECATED_FEATURES_SINCE_V3_0_0</span></code>
</li>
</ul></div>
<p>
The user can request the version 3 by defining <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span></code>
to 3. In this case the following breaking or extending macros are defined
if the opposite is not requested:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
Breaking change <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_EXPLICIT_LOCK_CONVERSION</span>
</code>
</li>
<li class="listitem">
Breaking change <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_FUTURE</span></code>
</li>
<li class="listitem">
Uniformity <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN</span></code>
</li>
<li class="listitem">
Extension <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSION</span></code>
</li>
<li class="listitem">
Conformity <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_FUTURE_CTOR_ALLOCATORS</span></code>
</li>
<li class="listitem">
Breaking change BOOST_THREAD_PROVIDES_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE
</li>
<li class="listitem">
Breaking change BOOST_THREAD_PROVIDES_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE
</li>
<li class="listitem">
Breaking change <code class="computeroutput"><span class="identifier">BOOST_THREAD_PROVIDES_ONCE_CXX11</span></code>
</li>
<li class="listitem">
Breaking change <code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_PROMISE_LAZY</span></code>
</li>
<li class="listitem">
Breaking change <code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_DEPRECATED_FEATURES_SINCE_V3_0_0</span></code>
</li>
</ul></div>
<p>
The default value for <code class="computeroutput"><span class="identifier">BOOST_THREAD_VERSION</span></code>
will be changed to 3 since Boost 1.53.
</p>
</div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="thread.build.limitations"></a><a class="link" href="build.html#thread.build.limitations" title="Limitations">Limitations</a>
</h3></div></div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="build.html#thread.build.limitations.sun">SunPro</a></span></dt>
<dt><span class="section"><a href="build.html#thread.build.limitations.vacpp">VACPP</a></span></dt>
</dl></div>
<p>
Some compilers don't work correctly with some of the added features.
</p>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.limitations.sun"></a><a class="link" href="build.html#thread.build.limitations.sun" title="SunPro">SunPro</a>
</h4></div></div></div>
<p>
If __SUNPRO_CC < 0x5100 the library defines
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_MOVE</span></code>
</li>
<li class="listitem">
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS</span></code>
</li>
</ul></div>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="thread.build.limitations.vacpp"></a><a class="link" href="build.html#thread.build.limitations.vacpp" title="VACPP">VACPP</a>
</h4></div></div></div>
<p>
If __IBMCPP__ is defined the library defines
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">
<code class="computeroutput"><span class="identifier">BOOST_THREAD_DONT_USE_CHRONO</span></code>
</li></ul></div>
<p>
And Boost.Thread doesn't links with Boost.Chrono.
</p>
</div>
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2007 -11 Anthony Williams<br>Copyright © 2011 -12 Vicente J. Botet Escriba<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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