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ChangeLog
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Thu May 28 2020 Szymon Romik <szymon.romik@intel.com>
* Version 1.10
This release introduces a new experimental container - persistent
concurrent map (based on concurrent skiplist implementation).
It also introduces some optimizations for existing containers and minor
bug fixes.
New features:
- concurrent_map container
- swap() method for basic_string
Optimizations:
- optimized clear() and erase() for trivial types in segment_vector
- optimized move constructor and assignement for basic_string
Bug Fixes:
- fixed free_data() in concurrent_hash_map
Fri Jan 31 2020 Szymon Romik <szymon.romik@intel.com>
* Version 1.9
This release moves segment_vector out of experimental namespace and
directory. It means that abovementioned container is guaranteed to have
stable API and on-media layout.
It also introduces defragmentation functionality with new defrag class
in pmem::detail namespace and helper classes (which currently reside in
"detail" directory): enumerable_thread_specific and volatile_state.
With this release, we also decreased restart time of concurrent_hash_map
(with a usage of the enumerable_thread_specific feature).
New features:
- new methods for pmem::obj::string (find() and its overloads)
- defragmentation feature as a separate class in pmem::obj namespace and
support for the defragmentation in containers: concurrent_hash_map,
vector, string
- removed template parameters from persistent_ptr_base class (make it
type agnostic) and moved to the public API
- new methods for pmem::obj::concurrent_hash_map (insert_or_assign and
its overloads)
Optimizations:
- bucket rehashing in concurrent_hash_map moved to transaction
- faster concurrent_hash_map restart (with "persistent TLS")
Other changes:
- added GitHub Actions as an additional CI
- added documentation and doc snippets with some usage examples
- added compatibility tests for different libpmemobj-cpp versions
Fri Jan 24 2020 Szymon Romik <szymon.romik@intel.com>
* Version 1.8.1
This release fixes minor bugs.
Notable changes:
- fix compilation error in concurrent_hash_map
- fix possible deadlock in erase method in concurrent_hash_map
Thu Oct 03 2019 Szymon Romik <szymon.romik@intel.com>
* Version 1.8
This release moves persistent array/vector/string/concurrent_hash_map
out from experimental namespace and directory. It means that
abovementioned containers are guaranteed to have stable API and on-media
layout. They are placed now in include/libpmemobj++/container/ directory
and pmem::obj namespace.
This release introduces also a new experimental container - persistent
segment vector with templated segment policies.
New features:
- experimental persistent segment vector container
Bug fixes:
- fixed insert method in persistent vector
- fixed move assignment operator in persistent array
Other changes:
- extended error messages in exceptions
- added examples with simplekv using persistent containers
- added modifiers methods for persistent string
- added template locks for concurrent_hash_map
- added layout versioning for concurrent_hash_map
Optimizations:
- concurrent_hash_map insert method implemented with tx
- optimized snapshotting in persistent vector/string
Wed Jun 26 2019 Szymon Romik <szymon.romik@intel.com>
* Version 1.7
This release introduces new experimental container - persistent
concurrent hashmap and persistent string with limited functionality.
Experimental features:
- persistent concurrent hashmap
- persistent string (constructors and modifiers)
Bug fixes:
- add option to force define IS_TRIVIALLY_COPYABLE
- mark allocation_flag constructor as explicit
- add missing include to v.hpp
Fri Mar 15 2019 Igor Chorążewicz <igor.chorazewicz@intel.com>
* Version 1.6
This release introduces ctl support, allocation flags, snapshot
method and new experimental persistent container - vector.
New features:
- add support for pmemobj_ctl_set/get/exec
- expose allocation flags in make_persistent(_atomic)
- transaction: add snapshot method
Experimental features:
- persistent vector container
Other changes:
- automatically start transaction inside pmem::obj::experimental::array
modifier methods (assignment operators, swap and fill)
- add const methods for pmem::obj::experimental::array
- add Valgrind instrumentation support
- remove experimental const_contiguous_iterator
- add get with arguments method overload for v
Bug fixes:
- throw an exception when dropping pmem lock failed
- fix crash when previous transaction failed to start
- fix forwarding parameters to constructor in make_persistent_atomic
Optimizations:
- decrease number of persistent_ptr dereferences in
make_persistent_array
Tue Feb 19 2018 Marcin Ślusarz <marcin.slusarz@intel.com>
* Version 1.5.1
This release fixes minor bugs and improves documentation.
Notable changes:
- fix v swap, assignment operators and constructors
- change conversion operator from T() to T&() in v<>
- fix range_snapshotting initialization in array.hpp.
- fix range_snapshotting_iterator behaviour for snapshot_size == 0.
Fri Oct 26 2018 Marcin Ślusarz <marcin.slusarz@intel.com>
* Version 1.5
This is the first release of libpmemobj-cpp as a separate project.
It introduces one persistent container - array, which has std::array
like interface. Currently it is considered experimental and lives
in experimental namespace.
We have also cleaned up some function names that, in retrospect, were
chosen poorly. Functions with old names are still there but are
deprecated.
Experimental features:
- volatile resides on pmem class
- persistent array container