mirror of
https://github.com/wjakob/tbb.git
synced 2026-08-31 01:20:42 +08:00
Hans Johnson
e32d75f876
The new release TBB is now under a new more
open license.
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
The list of most significant changes made over time in
Intel(R) Threading Building Blocks (Intel(R) TBB).
Intel TBB 2017
TBB_INTERFACE_VERSION == 9100
Changes (w.r.t. Intel TBB 4.4 Update 5):
- static_partitioner class is now a fully supported feature.
- async_node class is now a fully supported feature.
- Improved dynamic memory allocation replacement on Windows* OS to skip
DLLs for which replacement cannot be done, instead of aborting.
- Intel TBB no longer performs dynamic memory allocation replacement
for Microsoft* Visual Studio* 2008.
- For 64-bit platforms, quadrupled the worst-case limit on the amount
of memory the Intel TBB allocator can handle.
- Added TBB_USE_GLIBCXX_VERSION macro to specify the version of GNU
libstdc++ when it cannot be properly recognized, e.g. when used
with Clang on Linux* OS. Inspired by a contribution from David A.
- Added graph/stereo example to demostrate tbb::flow::async_msg.
- Removed a few cases of excessive user data copying in the flow graph.
- Reworked split_node to eliminate unnecessary overheads.
- Added support for C++11 move semantics to the argument of
tbb::parallel_do_feeder::add() method.
- Added C++11 move constructor and assignment operator to
tbb::combinable template class.
- Added tbb::this_task_arena::max_concurrency() function and
max_concurrency() method of class task_arena returning the maximal
number of threads that can work inside an arena.
- Deprecated tbb::task_arena::current_thread_index() static method;
use tbb::this_task_arena::current_thread_index() function instead.
- All examples for commercial version of library moved online:
https://software.intel.com/en-us/product-code-samples. Examples are
available as a standalone package or as a part of Intel(R) Parallel
Studio XE or Intel(R) System Studio Online Samples packages.
Changes affecting backward compatibility:
- Renamed following methods and types in async_node class:
Old New
async_gateway_type => gateway_type
async_gateway() => gateway()
async_try_put() => try_put()
async_reserve() => reserve_wait()
async_commit() => release_wait()
- Internal layout of some flow graph nodes has changed; recompilation
is recommended for all binaries that use the flow graph.
Preview Features:
- Added template class streaming_node to the flow graph API. It allows
a flow graph to offload computations to other devices through
streaming or offloading APIs.
- Template class opencl_node reimplemented as a specialization of
streaming_node that works with OpenCL*.
- Added tbb::this_task_arena::isolate() function to isolate execution
of a group of tasks or an algorithm from other tasks submitted
to the scheduler.
Bugs fixed:
- Added a workaround for GCC bug #62258 in std::rethrow_exception()
to prevent possible problems in case of exception propagation.
- Fixed parallel_scan to provide correct result if the initial value
of an accumulator is not the operation identity value.
- Fixed a memory corruption in the memory allocator when it meets
internal limits.
- Fixed the memory allocator on 64-bit platforms to align memory
to 16 bytes by default for all allocations bigger than 8 bytes.
- As a workaround for crashes in the Intel TBB library compiled with
GCC 6, added -flifetime-dse=1 to compilation options on Linux* OS.
- Fixed a race in the flow graph implementation.
Open-source contributions integrated:
- Enabling use of C++11 'override' keyword by Raf Schietekat.
------------------------------------------------------------------------
225 lines
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225 lines
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<li class="navelem"><a class="el" href="a00228.html">tbb</a></li><li class="navelem"><b>strict_ppl</b></li><li class="navelem"><a class="el" href="a00039.html">concurrent_queue</a></li> </ul>
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<div class="title">tbb::strict_ppl::concurrent_queue< T, A > Class Template Reference<div class="ingroups"><a class="el" href="a00247.html">Containers</a></div></div> </div>
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<p>A high-performance thread-safe non-blocking concurrent queue.
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<a href="a00039.html#details">More...</a></p>
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<p><code>#include <concurrent_queue.h></code></p>
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Inheritance diagram for tbb::strict_ppl::concurrent_queue< T, A >:</div>
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<img src="a00039.png" usemap="#tbb::strict_ppl::concurrent_queue< T, A >_map" alt=""/>
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<table class="memberdecls">
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Public Types</h2></td></tr>
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<tr class="memitem:aeeee93a7ac2eecc80bbf3e857e900538"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeeee93a7ac2eecc80bbf3e857e900538"></a>
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typedef T </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#aeeee93a7ac2eecc80bbf3e857e900538">value_type</a></td></tr>
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<tr class="memdesc:aeeee93a7ac2eecc80bbf3e857e900538"><td class="mdescLeft"> </td><td class="mdescRight">Element type in the queue. <br/></td></tr>
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<tr class="memitem:ab26ddf11b15d61ac87e6c1ae67af92a2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab26ddf11b15d61ac87e6c1ae67af92a2"></a>
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typedef T & </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#ab26ddf11b15d61ac87e6c1ae67af92a2">reference</a></td></tr>
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<tr class="memdesc:ab26ddf11b15d61ac87e6c1ae67af92a2"><td class="mdescLeft"> </td><td class="mdescRight">Reference type. <br/></td></tr>
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<tr class="separator:ab26ddf11b15d61ac87e6c1ae67af92a2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a478c2b7f763b2e821e01cc14e13baf4c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a478c2b7f763b2e821e01cc14e13baf4c"></a>
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typedef const T & </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#a478c2b7f763b2e821e01cc14e13baf4c">const_reference</a></td></tr>
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<tr class="memdesc:a478c2b7f763b2e821e01cc14e13baf4c"><td class="mdescLeft"> </td><td class="mdescRight">Const reference type. <br/></td></tr>
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typedef size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#a9f883e49afea16293ba92da779981bb8">size_type</a></td></tr>
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<tr class="memdesc:a9f883e49afea16293ba92da779981bb8"><td class="mdescLeft"> </td><td class="mdescRight">Integral type for representing size of the queue. <br/></td></tr>
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<tr class="memitem:a63b42d83a9ed13fc6741e0b4388b0e96"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a63b42d83a9ed13fc6741e0b4388b0e96"></a>
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typedef ptrdiff_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#a63b42d83a9ed13fc6741e0b4388b0e96">difference_type</a></td></tr>
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<tr class="memdesc:a63b42d83a9ed13fc6741e0b4388b0e96"><td class="mdescLeft"> </td><td class="mdescRight">Difference type for iterator. <br/></td></tr>
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typedef A </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a></td></tr>
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<tr class="memdesc:acbdd1a5bd034358fb0774b322a66b1ed"><td class="mdescLeft"> </td><td class="mdescRight">Allocator type. <br/></td></tr>
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typedef <br class="typebreak"/>
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internal::concurrent_queue_iterator<br class="typebreak"/>
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< <a class="el" href="a00039.html">concurrent_queue</a>, T > </td><td class="memItemRight" valign="bottom"><b>iterator</b></td></tr>
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typedef <br class="typebreak"/>
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internal::concurrent_queue_iterator<br class="typebreak"/>
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< <a class="el" href="a00039.html">concurrent_queue</a>, const T > </td><td class="memItemRight" valign="bottom"><b>const_iterator</b></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a49b2e16902577cd3174355be0fa684e5"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a49b2e16902577cd3174355be0fa684e5"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#a49b2e16902577cd3174355be0fa684e5">concurrent_queue</a> (const <a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a> &a=<a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a>())</td></tr>
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<tr class="memdesc:a49b2e16902577cd3174355be0fa684e5"><td class="mdescLeft"> </td><td class="mdescRight">Construct empty queue. <br/></td></tr>
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<tr class="memitem:a43ac953152e60815c09fe4a4d4a623a9"><td class="memTemplParams" colspan="2"><a class="anchor" id="a43ac953152e60815c09fe4a4d4a623a9"></a>
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template<typename InputIterator > </td></tr>
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<tr class="memitem:a43ac953152e60815c09fe4a4d4a623a9"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00039.html#a43ac953152e60815c09fe4a4d4a623a9">concurrent_queue</a> (InputIterator begin, InputIterator end, const <a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a> &a=<a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a>())</td></tr>
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<tr class="memdesc:a43ac953152e60815c09fe4a4d4a623a9"><td class="mdescLeft"> </td><td class="mdescRight">[begin,end) constructor <br/></td></tr>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#ae918807d098d5d5b41cc6d606fa2e7a1">concurrent_queue</a> (const <a class="el" href="a00039.html">concurrent_queue</a> &src, const <a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a> &a=<a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a>())</td></tr>
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<tr class="memdesc:ae918807d098d5d5b41cc6d606fa2e7a1"><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor. <br/></td></tr>
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<tr class="memitem:acc04574f4d7d41fd5cad779508394740"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="acc04574f4d7d41fd5cad779508394740"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#acc04574f4d7d41fd5cad779508394740">concurrent_queue</a> (<a class="el" href="a00039.html">concurrent_queue</a> &&src)</td></tr>
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<tr class="memdesc:acc04574f4d7d41fd5cad779508394740"><td class="mdescLeft"> </td><td class="mdescRight">Move constructors. <br/></td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>concurrent_queue</b> (<a class="el" href="a00039.html">concurrent_queue</a> &&src, const <a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a> &a)</td></tr>
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<tr class="memitem:aa0056b242f280f5e25332ce998f9f670"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa0056b242f280f5e25332ce998f9f670"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#aa0056b242f280f5e25332ce998f9f670">~concurrent_queue</a> ()</td></tr>
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<tr class="memdesc:aa0056b242f280f5e25332ce998f9f670"><td class="mdescLeft"> </td><td class="mdescRight">Destroy queue. <br/></td></tr>
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<tr class="memitem:a9330ca6590980d80ef7b1ea3613a699a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9330ca6590980d80ef7b1ea3613a699a"></a>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#a9330ca6590980d80ef7b1ea3613a699a">push</a> (const T &source)</td></tr>
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<tr class="memdesc:a9330ca6590980d80ef7b1ea3613a699a"><td class="mdescLeft"> </td><td class="mdescRight">Enqueue an item at tail of queue. <br/></td></tr>
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<tr class="separator:a9330ca6590980d80ef7b1ea3613a699a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a40f743f7eb92bb709cb7feb86d340885"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a40f743f7eb92bb709cb7feb86d340885"></a>
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void </td><td class="memItemRight" valign="bottom"><b>push</b> (T &&source)</td></tr>
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<tr class="separator:a40f743f7eb92bb709cb7feb86d340885"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4647d9bf5fd03b0850ada381916e9728"><td class="memTemplParams" colspan="2"><a class="anchor" id="a4647d9bf5fd03b0850ada381916e9728"></a>
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template<typename... Arguments> </td></tr>
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<tr class="memitem:a4647d9bf5fd03b0850ada381916e9728"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>emplace</b> (Arguments &&...args)</td></tr>
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<tr class="separator:a4647d9bf5fd03b0850ada381916e9728"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aabb1acef18196fa11ed7db8e046c3943"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#aabb1acef18196fa11ed7db8e046c3943">try_pop</a> (T &result)</td></tr>
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<tr class="memdesc:aabb1acef18196fa11ed7db8e046c3943"><td class="mdescLeft"> </td><td class="mdescRight">Attempt to dequeue an item from head of queue. <a href="#aabb1acef18196fa11ed7db8e046c3943">More...</a><br/></td></tr>
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<tr class="memitem:aad4b253ba595637b0b146eb6565556f2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aad4b253ba595637b0b146eb6565556f2"></a>
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<a class="el" href="a00039.html#a9f883e49afea16293ba92da779981bb8">size_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#aad4b253ba595637b0b146eb6565556f2">unsafe_size</a> () const </td></tr>
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<tr class="memdesc:aad4b253ba595637b0b146eb6565556f2"><td class="mdescLeft"> </td><td class="mdescRight">Return the number of items in the queue; thread unsafe. <br/></td></tr>
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<tr class="memitem:aeda3156929d0c250faed7b807ca6ab0e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeda3156929d0c250faed7b807ca6ab0e"></a>
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bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#aeda3156929d0c250faed7b807ca6ab0e">empty</a> () const </td></tr>
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<tr class="memdesc:aeda3156929d0c250faed7b807ca6ab0e"><td class="mdescLeft"> </td><td class="mdescRight">Equivalent to size()==0. <br/></td></tr>
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<tr class="memitem:ad3384818fb6350a494d5ec62445e59ee"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad3384818fb6350a494d5ec62445e59ee"></a>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#ad3384818fb6350a494d5ec62445e59ee">clear</a> ()</td></tr>
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<tr class="memdesc:ad3384818fb6350a494d5ec62445e59ee"><td class="mdescLeft"> </td><td class="mdescRight">Clear the queue. not thread-safe. <br/></td></tr>
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<tr class="separator:ad3384818fb6350a494d5ec62445e59ee"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7f2b39f350281590b86db906eca6c480"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7f2b39f350281590b86db906eca6c480"></a>
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<a class="el" href="a00039.html#acbdd1a5bd034358fb0774b322a66b1ed">allocator_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html#a7f2b39f350281590b86db906eca6c480">get_allocator</a> () const </td></tr>
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<tr class="memdesc:a7f2b39f350281590b86db906eca6c480"><td class="mdescLeft"> </td><td class="mdescRight">Return allocator object. <br/></td></tr>
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<tr class="memitem:a6658faeae3c10135a553fedadddde239"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6658faeae3c10135a553fedadddde239"></a>
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iterator </td><td class="memItemRight" valign="bottom"><b>unsafe_begin</b> ()</td></tr>
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<tr class="memitem:aa7593de5e76006ed3adef4d060f0009c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa7593de5e76006ed3adef4d060f0009c"></a>
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iterator </td><td class="memItemRight" valign="bottom"><b>unsafe_end</b> ()</td></tr>
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<tr class="memitem:a0f84b37020f4267f17c7e91acfc0c446"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0f84b37020f4267f17c7e91acfc0c446"></a>
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const_iterator </td><td class="memItemRight" valign="bottom"><b>unsafe_begin</b> () const </td></tr>
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<tr class="separator:a0f84b37020f4267f17c7e91acfc0c446"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a118a79d7e20cdbd807fa7fccc2a5b848"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a118a79d7e20cdbd807fa7fccc2a5b848"></a>
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const_iterator </td><td class="memItemRight" valign="bottom"><b>unsafe_end</b> () const </td></tr>
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<tr class="separator:a118a79d7e20cdbd807fa7fccc2a5b848"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
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Friends</h2></td></tr>
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<tr class="memitem:a1f5eec0de2e660ea5372d19393f0920b"><td class="memTemplParams" colspan="2"><a class="anchor" id="a1f5eec0de2e660ea5372d19393f0920b"></a>
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template<typename Container , typename Value > </td></tr>
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<tr class="memitem:a1f5eec0de2e660ea5372d19393f0920b"><td class="memTemplItemLeft" align="right" valign="top">class </td><td class="memTemplItemRight" valign="bottom"><b>internal::concurrent_queue_iterator</b></td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><h3>template<typename T, typename A = cache_aligned_allocator<T>><br/>
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class tbb::strict_ppl::concurrent_queue< T, A ></h3>
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<p>A high-performance thread-safe non-blocking concurrent queue. </p>
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<p>Multiple threads may each push and pop concurrently. Assignment construction is not allowed. </p>
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</div><h2 class="groupheader">Member Function Documentation</h2>
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<a class="anchor" id="aabb1acef18196fa11ed7db8e046c3943"></a>
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<div class="memitem">
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<div class="memproto">
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<div class="memtemplate">
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template<typename T , typename A = cache_aligned_allocator<T>> </div>
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<table class="mlabels">
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<tr>
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<td class="mlabels-left">
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<table class="memname">
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<tr>
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<td class="memname">bool <a class="el" href="a00039.html">tbb::strict_ppl::concurrent_queue</a>< T, A >::try_pop </td>
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<td>(</td>
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<td class="paramtype">T & </td>
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<td class="paramname"><em>result</em>)</td><td></td>
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<td></td>
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</tr>
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</table>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Attempt to dequeue an item from head of queue. </p>
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<p>Does not wait for item to become available. Returns true if successful; false otherwise. </p>
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</div>
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</div>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li>concurrent_queue.h</li>
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</ul>
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</div><!-- contents -->
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<hr>
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<p></p>
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Copyright © 2005-2016 Intel Corporation. All Rights Reserved.
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<p></p>
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Intel, Pentium, Intel Xeon, Itanium, Intel XScale and VTune are
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registered trademarks or trademarks of Intel Corporation or its
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subsidiaries in the United States and other countries.
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<p></p>
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* Other names and brands may be claimed as the property of others.
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