-2.0.0
+2.4.0
+ - Removed: -fno-strict-aliasing requirement
+
+2.3.1 01.09.2017
+ Maintenance release
+ - issue #81: bug in gc::DHP when extending thread's retired array,
+ thanks to gtroxler (https://github.com/gtroxler)
+ - Improved CMake scripts for simplifying libcds intergration with
+ other projects:
+ find_package(LibCDS)
+ add_library(mylib INTERFACE)
+ target_link_libraries(mylib INTERFACE LibCDS::cds)
+ Thansk to Louis Dionne (https://github.com/ldionne)
+
+2.3.0 31.07.2017
+ General release
+ - Changed: cds::gc::HP is totally refactored:
+ - simplified internal structures;
+ - added ability to specify an external allocator for internal data;
+ - external API for gc::HP is slightly changed: now scan type
+ cannot be changed on the fly; it can be specified only in
+ construction time.
+ - Changed: cds::gc::DHP is totally refactored to overcome some internal
+ limitations. Now gc::DHP is fully adaptive variant of Hazard Pointer
+ SMR, any dependencies on count of thread are removed, count of retired
+ data and hazard pointers per thread are increased automaticaly by perforce.
+ External API of gc::DHP class is changed: now only initial count
+ of hazard pointers can be specified in the constructor. Like new gc::HP,
+ the new gc::DHP supports an external allocator.
+ - Changed: exception handling. Now, exceptions raise by invoking new
+ cds::throw_exception() function. If you compile your code with exception disabled,
+ the function prints an exception message to stdout and calls abort()
+ instead of throwing.
+ - Flat Combining: fixed memory-order bug that can lead to crash on weak ordered
+ architecture like PowerPC or ARM
+ - Added: erase_at( iterator ) function to MichaelHashSet/Map and SplitListSet/Map
+ based on IterableList
+ - Fixed a bug in BronsonAVLTreeMap::extract_min()/extract_max()/clear().
+ - Removed: signal-handled threaded uRCU (cds::urcu::signal_threaded) due
+ bad performance
+ - Added more flat-combining queue tests, thanks to Marsel Galimullin.
+ - Changed cmake scripts to support MacOS and ARMv7/ARMv8 (64 bit),
+ thanks to Michail Komarov (https://github.com/Nemo1369)
+ - Stress tests: removed command line parameter --detail-level and
+ envvar CDSTEST_DETAIL_LEVEL for reducing compile time and executable size.
+ To make full testset compile libcds with -DCDS_STRESS_TEST_LEVEL=N where
+ N is 1 or 2.
+ - Changed: refactoring cds::backoff::exponential and cds::backoff::delay
+ back-off strategies to avoid static data members in template classes.
+ - The library is extensively tested on x86-64, PowerPC and AArch64,
+ thanks to GCC Compile Farm project
+
+2.2.0 04.01.2017
+ General release
+ - Changed: CMake is used for build libcds. Ancient build.sh has been removed
+ - Changed: unit and stress tests are migrated to googletest framework
+ - Added: IterableList - an implementation of ordered list with
+ thread-safe iterator. MichaelSet/Map and SplitListSet/Map support
+ this type of ordered list and thread-safe iterable too.
+ - Added: wait strategies for flat combining technique. Based on
+ research by Marsel Galimullin and Nikolai Rapotkin.
+ - Fixed: SkipList erase() and find() bugs that cause to infinite loop
+ or to program crash in rare case.
+ - Fixed: serious bug in MichaelSet::emplace() function
+ New node was created twice from the arguments by move semantics.
+ However, move semantics may change internal state of the argument
+ that can lead to an incorrect element and even an incorrect key
+ that breaks the set logic.
+ - Fixed: bug in FeldmanHashSet::erase_at( iterator ): due an error
+ in precondition checking the function may incorrectly return false.
+ - Fixed: possible double-free case in flat combining algorithm.
+ Thanks to Amila Jayasekara who pointed me to this problem
+ - Changed: cds::opt::buffer option is divided to initialized
+ (cds::opt::v::initialized_dynamic_buffer, cds::opt::v::initialized_static_buffer)
+ and uninitialized (cds::opt::v::uninitialized_dynamic_buffer, cds::opt::v::uninitialized_static_buffer)
+ ones. The old cds::opt::v::dynamic_buffer and cds::opt::v::static_buffer classes
+ are removed.
+ - Removed: TsigasCysleQueue (due undecidable ABA-problem)
+ - Removed: Michael's allocator cds/memory/michael/allocator.h
+ - Fixed: use-after-free bug in VyukovMPMCCycleQueue internal buffer.
+ To prevent this bug the queue uses an uninitialized buffer now.
+ - Fixed: rare priority inversion bug in MSPriorityQueue
+ - Added: for minimizing runtime of stress test the detail level for some test is added.
+ Command line argument --detail-level=N specifies what test should be ran: each
+ test with level not greater than N will be ran. Instead of command line arg
+ the enviromnent variable CDSTEST_DETAIL_LEVEL=N may be used.
+ By default, the detail level is 0 that means only limited set of the test will be ran.
+
+2.1.0 06.01.2016
+ General release
+ - Added: FeldmanHashSet/Map - an interesting hash map algorithm
+ based on multi-level array, requires perfect hashing or fixed-sized keys.
+ Supports thread-safe bidirectional iterators.
+ - Added: BronsonAVLTreeMap - Bronson's et al AVL tree implementation
+ - Added: CMake build script, thanks to Eugeny Kalishenko
+ - Changed: SplitList performance improving, thanks to Mike Krinkin
+ - Changed: semantic of member functions extract(), get() and its
+ variants for MichaelList RCU-based specialization: extract() does not
+ require RCU locking, get() now returns special wrapper object of type raw_ptr,
+ see doc.
+ Thus, semantics of extract()/get() of all RCU-based set and maps based on
+ MichaelList (MichaelSet/Map, SplitListSet/Map) has been changed too.
+ - Changed: SplitListSet/Map functions get() and get_with() return special wrapper
+ object of type raw_ptr, see doc.
+ - Removed: SplitListSet/Map force_dispose() function.
+ - cds::lock namespace is renamed to cds::sync. All classes defined in cds::lock namespace
+ are moved to cds::sync with new names (for example, cds::lock::SpinLock is renamed to
+ cds::sync::spin_lock). cds::lock namespace and its contents is deprecated, it is kept
+ for backward compatibility.
+ - The library has been checked by ThreadSanitizer, a lot of bugs has been fixed
+ - Added support for clang 3.7 with libc++
+
+2.0.0 30.12.2014
General release
- - switch to C++11 standard
+ - the library has been rewritten to support at least C++11. Compilers: GCC 4.8+, clang 3.3+,
+ MS Visual C++ 12 (2013) Update 4 an above.
- Removed: MichaelDeque, reason: the implementation is heavy-weighted, inefficient,
and, seems, unstable.
- - Added: cds::container::TreiberStack::pop_with( Func )
+ - Removed: cds::gc::HRC garbage collector, reason: the implementation is inefficient
+ and unstable.
+ - Changed: all container's declaration except StripedSet has been unified to the
+ following traits-based form:
+ class Container< GC, T, Traits >
+ - Added: new member function pop_with(Func) to cds::container::TreiberStack
+ - Added: new member functions enqueue_with(Func), dequeue_with(Func) to
+ cds::container::MSQueue
+ cds::container::MoirQueue
+ cds::container::BasketQueue
+ cds::container::OptimisticQueue
+ cds::container::RWQueue
+ cds::container::SegmentedQueue
+ cds::container::TsigasCycleQueue
+ cds::container::VyukovMPMCCycleQueue
+ - Added: new member functions push_with(Func) and pop_with(Func) to cds::container::MSPriorityQueue
+ - SegmentedQueue: add padding into segmented_queue::traits to eliminate false sharing.
+ - Changed: guarded_ptr and exempt_ptr have move semantics now. The container's extract() and get()
+ member functions return the objects of that type.
+ - Changed: improved cds::gc::HP and cds::gc::DHP internal implementation
+ - Changed: map member function insert_key() has been renamed to insert_with()
+ - Changed: cds/cxx11_atomic.h has been renamed to cds/algo/atomic.h
+ - Removed: cds/refcounter.h
1.6.0 23.09.2014
General release
10. Added compiler barrier to spin-lock release primitive for x86 and amd64
11. Makefile script is changed to resolve the problem when an user calls 'make clean' directly.
Thanks to Tamas Lengyel to point me to this bug.
- 12. The file dictionary.txt is exluded from distributive. This file is used for testing purposes only.
+ 12. The file dictionary.txt is excluded from distributive. This file is used for testing purposes only.
You may create dictionary.txt in this way:
cd ./tests/data
perl -X split.pl
projects / libcds.git / blobdiff