-//$$CDS-header$$
+/*
+ This file is a part of libcds - Concurrent Data Structures library
+
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2016
+
+ Source code repo: http://github.com/khizmax/libcds/
+ Download: http://sourceforge.net/projects/libcds/files/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
#ifndef CDSLIB_CONTAINER_TREIBER_STACK_H
#define CDSLIB_CONTAINER_TREIBER_STACK_H
/// Buffer type for elimination array
/**
- Possible types are \p opt::v::static_buffer, \p opt::v::dynamic_buffer.
+ Possible types are \p opt::v::initialized_static_buffer, \p opt::v::initialized_dynamic_buffer.
The buffer can be any size: \p Exp2 template parameter of those classes can be \p false.
The size should be selected empirically for your application and hardware, there are no common rules for that.
- Default is <tt> %opt::v::static_buffer< any_type, 4 > </tt>.
+ Default is <tt> %opt::v::initialized_static_buffer< any_type, 4 > </tt>.
*/
- typedef opt::v::static_buffer< int, 4 > buffer;
+ typedef opt::v::initialized_static_buffer< int, 4 > buffer;
/// Random engine to generate a random position in elimination array
typedef opt::v::c_rand random_engine;
/// Metafunction converting option list to \p TreiberStack traits
/**
Supported \p Options are:
- - opt::allocator - allocator (like \p std::allocator) used for allocating stack nodes. Default is \ref CDS_DEFAULT_ALLOCATOR
- - opt::back_off - back-off strategy used. If the option is not specified, the \p cds::backoff::Default is used.
- - opt::memory_model - C++ memory ordering model. Can be \p opt::v::relaxed_ordering (relaxed memory model, the default)
+ - \p opt::allocator - allocator (like \p std::allocator) used for allocating stack nodes. Default is \ref CDS_DEFAULT_ALLOCATOR
+ - \p opt::back_off - back-off strategy used. If the option is not specified, the \p cds::backoff::Default is used.
+ - \p opt::memory_model - C++ memory ordering model. Can be \p opt::v::relaxed_ordering (relaxed memory model, the default)
or \p opt::v::sequential_consistent (sequentially consisnent memory model).
- - opt::item_counter - the type of item counting feature. Default is \p cds::atomicity::empty_item_counter, i.e.
+ - \p opt::item_counter - the type of item counting feature. Default is \p cds::atomicity::empty_item_counter, i.e.
no item counting. Use \p cds::atomicity::item_counter to enable item counting.
- - opt::stat - the type to gather internal statistics.
+ - \p opt::stat - the type to gather internal statistics.
Possible option value are: \p treiber_stack::stat, \p treiber_stack::empty_stat (the default),
user-provided class that supports \p %treiber_stack::stat interface.
- - opt::enable_elimination - enable elimination back-off for the stack. Default value is \p false.
+ - \p opt::enable_elimination - enable elimination back-off for the stack. Default value is \p false.
If elimination back-off is enabled, additional options can be specified:
- - opt::buffer - a buffer type for elimination array, see \p opt::v::static_buffer, \p opt::v::dynamic_buffer.
+ - \p opt::buffer - an initialized buffer type for elimination array, see \p opt::v::initialized_static_buffer, \p opt::v::initialized_dynamic_buffer.
The buffer can be any size: \p Exp2 template parameter of those classes can be \p false.
The size should be selected empirically for your application and hardware, there are no common rules for that.
- Default is <tt> %opt::v::static_buffer< any_type, 4 > </tt>.
- - opt::random_engine - a random engine to generate a random position in elimination array.
+ Default is <tt> %opt::v::initialized_static_buffer< any_type, 4 > </tt>.
+ - \p opt::random_engine - a random engine to generate a random position in elimination array.
Default is \p opt::v::c_rand.
- - opt::elimination_backoff - back-off strategy to wait for elimination, default is \p cds::backoff::delay<>
- - opt::lock_type - a lock type used in elimination back-off, default is \p cds::sync::spin.
+ - \p opt::elimination_backoff - back-off strategy to wait for elimination, default is \p cds::backoff::delay<>
+ - \p opt::lock_type - a lock type used in elimination back-off, default is \p cds::sync::spin.
Example: declare %TreiberStack with item counting and internal statistics using \p %make_traits
\code
/// Constructs empty stack and initializes elimination back-off data
/**
This form should be used if you use elimination back-off with dynamically allocated collision array, i.e
- \p Options... contains cds::opt::buffer< cds::opt::v::dynamic_buffer >.
+ \p Options... contains cds::opt::buffer< cds::opt::v::initialized_dynamic_buffer >.
\p nCollisionCapacity parameter specifies the capacity of collision array.
*/
TreiberStack( size_t nCollisionCapacity )
*/
bool pop( value_type& val )
{
- return pop_with( [&val]( value_type& src ) { val = src; } );
+ return pop_with( [&val]( value_type& src ) { val = std::move(src); } );
}
/// Pops an item from the stack with functor
/**
+ \p Func can be used to copy/move popped item from the stack.
\p Func interface is:
\code
void func( value_type& src );
- \endcond
- where \p src - item popped.
-
- The \p %pop_with can be used to move item from the stack to user-provided storage:
- \code
- cds::container::TreiberStack<cds::gc::HP, std::string > myStack;
- //...
-
- std::string dest;
- myStack.pop_with( [&dest]( std::string& src ) { dest = std::move( src ); } );
\endcode
+ where \p src - item popped.
*/
template <typename Func>
bool pop_with( Func f )
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