Fixed cursor_put_nochecklen() internals for case when dupsort'ed named subDb
contains a single key with multiple values (aka duplicates), which are replaced
with a single value by put-operation with the `MDBX_UPSERT+MDBX_ALLDUPS` flags.
In this case, the database becomes completely empty, without any pages.
However exactly this condition was not considered and
thus wasn't handled correctly.
Fixes https://gitflic.ru/project/erthink/libmdbx/issue/8
Thanks Masatoshi Fukunaga <https://gitflic.ru/user/mah0x211> for reporting.
The stable bugfix release in memory of [Boris Yuryev](https://ru.wikipedia.org/wiki/Юрьев,_Борис_Николаевич) on his 133rd birthday.
Fixes:
------
- Fixed builds with older libc versions after using `fcntl64()` (backport).
- Fixed builds with older `stdatomic.h` versions,
where the `ATOMIC_*_LOCK_FREE` macros mistakenly redefined using functions (backport).
- Added workaround for `mremap()` defect to avoid assertion failure (backport).
- Workaround for `encryptfs` bug(s) in the `copy_file_range` implementation (backport).
- Fixed unexpected `MDBX_BUSY` from `mdbx_env_set_option()`, `mdbx_env_set_syncbytes()`
and `mdbx_env_set_syncperiod()` (backport).
- CMake requirements lowered to version 3.0.2 (backport).
- Added admonition of insecure for RISC-V (backport).
Minors:
-------
- Minor clarification output of `--help` for `mdbx_test` (backport).
- Added admonition of insecure for RISC-V (backport).
- Stochastic scripts and CMake files synchronized with the `devel` branch.
- Use `--dont-check-ram-size` for small-tests make-targets (backport).
30 files changed, 405 insertions(+), 136 deletions(-)
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
Выяснилось что утилита `mdbx_copy` и функции `mdbx_env_copy()` могут
создавать ПРОБЛЕМЫ если целевой файл расположен в encryptfs (такая
файловая система в Linux).
При этом может быть четыре исхода в зависимости от версии ядра и
положения звезд на небе:
- всё хорошо;
- плохие данные в копии без возврата ошибок;
- ошибка EINVAL(22) при копировании;
- oops или зависание ядра, отвал смонтированной encryptfs и т.п.
В текущем понимании, причина обусловлена ошибой в коде fs, которая
проявляется при использовании системного вызова `copy_file_range`.
Есть основание полагать, что mremap() может возвращать MAP_FAILED, но НЕ
устанавливать errno в некоторых пограничных ситуациях. Например, когда
системных ресурсов не хватает на актуализацию/копирование/клонирование
состояния отображения на финальной стадии, в том числе из-за раскраски
исходного отображения разными флагами через madvise().
The stable bugfix release.
Fixes:
------
- Fixed static assertion failure on platforms where the `off_t` type is wider
than corresponding fields of `struct flock` used for file locking (backport).
Now _libmdbx_ will use `fcntl64(F_GETLK64/F_SETLK64/F_SETLKW64)` if available.
- Fixed assertion check inside `page_retire_ex()` (backport).
Minors:
-------
- Fixed `-Wint-to-pointer-cast` warnings while casting to `mdbx_tid_t` (backport).
- Removed needless `LockFileEx()` inside `mdbx_env_copy()` (backport).
11 files changed, 96 insertions(+), 49 deletions(-)
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
The stable bugfix release.
It is planned that this will be the last release of the v0.11 branch.
Fixes:
------
- Fixed an extra check for `MDBX_APPENDDUP` inside `mdbx_cursor_put()` which could result in returning `MDBX_EKEYMISMATCH` for valid cases.
- Fixed an extra ensure/assertion check of `oldest_reader` inside `mdbx_txn_end()`.
- Fixed derived C++ builds by removing `MDBX_INTERNAL_FUNC` for `mdbx_w2mb()` and `mdbx_mb2w()`.
10 files changed, 38 insertions(+), 21 deletions(-)
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
The stable bugfix release.
It is planned that this will be the last release of the v0.11 branch.
New:
----
- The C++ API has been refined to simplify support for `wchar_t` in path names.
- Added explicit error message for Buildroot's Microblaze toolchain maintainers.
Fixes:
------
- Never use modern `__cxa_thread_atexit()` on Apple's OSes.
- Use `MultiByteToWideChar(CP_THREAD_ACP)` instead of `mbstowcs()`.
- Don't check owner for finished transactions.
- Fixed typo in `MDBX_EINVAL` which breaks MingGW builds with CLANG.
Minors:
-------
- Fixed variable name typo.
- Using `ldd` to check used dso.
- Added `MDBX_WEAK_IMPORT_ATTRIBUTE` macro.
- Use current transaction geometry for untouched parameters when `env_set_geometry()` called within a write transaction.
- Minor clarified `iov_page()` failure case.
14 files changed, 263 insertions(+), 252 deletions(-)
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
The stable bugfix release.
It is planned that this will be the last release of the v0.11 branch.
Acknowledgements:
-----------------
- [Alex Sharov](https://github.com/AskAlexSharov) and Erigon team for reporting and testing.
- [Andrew Ashikhmin](https://gitflic.ru/user/yperbasis) for contributing.
New:
----
- Ability to customise `MDBX_LOCK_SUFFIX`, `MDBX_DATANAME`, `MDBX_LOCKNAME` just by predefine ones during build.
- Added to [`mdbx::env_managed`](https://libmdbx.dqdkfa.ru/group__cxx__api.html#classmdbx_1_1env__managed)'s methods a few overloads with `const char* pathname` parameter (C++ API).
Fixes:
------
- Fixed hang copy-with-compactification of a corrupted DB
or in case the volume of output pages is a multiple of `MDBX_ENVCOPY_WRITEBUF`.
- Fixed standalone non-CMake build on MacOS (`#include AvailabilityMacros.h>`).
- Fixed unexpected `MDBX_PAGE_FULL` error in rare cases with large database page sizes.
Minors:
-------
- Minor fixes Doxygen references, comments, descriptions, etc.
- Fixed copy&paste typo inside `meta_checktxnid()`.
- Minor fix `meta_checktxnid()` to avoid assertion in debug mode.
- Minor fix `mdbx_env_set_geometry()` to avoid returning `EINVAL` in particular rare cases.
- Minor refine/fix batch-get testcase for large page size.
- Added `--pagesize NN` option to long-stotastic test script.
- Updated Valgrind-suppressions file for modern GCC.
- Fixed `has no symbols` warning from Apple's ranlib.
18 files changed, 318 insertions(+), 178 deletions(-)
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
The stable release with an important fixes and workaround for the critical macOS thread-local-storage issue.
Acknowledgements:
-----------------
- [Masatoshi Fukunaga](https://github.com/mah0x211) for [Lua bindings](https://github.com/mah0x211/lua-libmdbx).
New:
----
- Added most of transactions flags to the public API.
- Added `MDBX_NOSUCCESS_EMPTY_COMMIT` build option to return non-success result (`MDBX_RESULT_TRUE`) on empty commit.
- Reworked validation and import of DBI-handles into a transaction.
Assumes these changes will be invisible to most users, but will cause fewer surprises in complex DBI cases.
- Added ability to open DB in without-LCK (exclusive read-only) mode in case no permissions to create/write LCK-file.
Fixes:
------
- A series of fixes and improvements for automatically generated documentation (Doxygen).
- Fixed copy&paste bug with could lead to `SIGSEGV` (nullptr dereference) in the exclusive/no-lck mode.
- Fixed minor warnings from modern Apple's CLANG 13.
- Fixed minor warnings from CLANG 14 and in-development CLANG 15.
- Fixed `SIGSEGV` regression in without-LCK (exclusive read-only) mode.
- Fixed `mdbx_check_fs_local()` for CDROM case on Windows.
- Fixed nasty typo of typename which caused false `MDBX_CORRUPTED` error in a rare execution path,
when the size of the thread-ID type not equal to 8.
- Fixed write-after-free memory corruption on latest `macOS` during finalization/cleanup of thread(s) that executed read transaction(s).
> The issue was suddenly discovered by a [CI](https://en.wikipedia.org/wiki/Continuous_integration)
> after adding an iteration with macOS 11 "Big Sur", and then reproduced on recent release of macOS 12 "Monterey".
> The issue was never noticed nor reported on macOS 10 "Catalina" nor others.
> Analysis shown that the problem caused by a change in the behavior of the system library (internals of dyld and pthread)
> during thread finalization/cleanup: now a memory allocated for a `__thread` variable(s) is released
> before execution of the registered Thread-Local-Storage destructor(s),
> thus a TLS-destructor will write-after-free just by legitime dereference any `__thread` variable.
> This is unexpected crazy-like behavior since the order of resources releasing/destroying
> is not the reverse of ones acquiring/construction order. Nonetheless such surprise
> is now workarounded by using atomic compare-and-swap operations on a 64-bit signatures/cookies.
- Fixed Elbrus/E2K LCC 1.26 compiler warnings (memory model for atomic operations, etc).
Minors:
-------
- Refined `release-assets` GNU Make target.
- Added logging to `mdbx_fetch_sdb()` to help debugging complex DBI-handels use cases.
- Added explicit error message from probe of no-support for `std::filesystem`.
- Added contributors "score" table by `git fame` to generated docs.
- Added `mdbx_assert_fail()` to public API (mostly for backtracing).
- Now C++20 concepts used/enabled only when `__cpp_lib_concepts >= 202002`.
- Don't provide nor report package information if used as a CMake subproject.
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
The stable risen release after the Github's intentional malicious disaster.
We have migrated to a reliable trusted infrastructure
-----------------------------------------------------
The origin for now is at [GitFlic](https://gitflic.ru/project/erthink/libmdbx)
since on 2022-04-15 the Github administration, without any warning nor
explanation, deleted _libmdbx_ along with a lot of other projects,
simultaneously blocking access for many developers.
For the same reason ~~Github~~ is blacklisted forever.
GitFlic already support Russian and English languages, plan to support more,
including 和 中文. You are welcome!
New:
----
- Added the `tools-static` make target to build statically linked MDBX tools.
- Support for Microsoft Visual Studio 2022.
- Support build by MinGW' make from command line without CMake.
- Added `mdbx::filesystem` C++ API namespace that corresponds to `std::filesystem` or `std::experimental::filesystem`.
- Created [website](https://libmdbx.website.yandexcloud.net/) for online auto-generated documentation.
- Used `todo4recovery://erased_by_github/` for dead (or temporarily lost) resources deleted by ~~Github~~.
- Added `--loglevel=` command-line option to the `mdbx_test` tool.
- Added few fast smoke-like tests into CMake builds.
Fixes:
------
- Fixed a race between starting a transaction and creating a DBI descriptor that could lead to `SIGSEGV` in the cursor tracking code.
- Clarified description of `MDBX_EPERM` error returned from `mdbx_env_set_geometry()`.
- Fixed non-promoting the parent transaction to be dirty in case the undo of the geometry update failed during abortion of a nested transaction.
- Resolved linking issues with `libstdc++fs`/`libc++fs`/`libc++experimental` for C++ `std::filesystem` or `std::experimental::filesystem` for legacy compilers.
- Added workaround for GNU Make 3.81 and earlier.
- Added workaround for Elbrus/LCC 1.25 compiler bug of class inline `static constexpr` member field.
- [Fixed](https://github.com/ledgerwatch/erigon/issues/3874) minor assertion regression (only debug builds were affected).
- Fixed detection of `C++20` concepts accessibility.
- Fixed detection of Clang's LTO availability for Android.
- Fixed build for ARM/ARM64 by MSVC.
- Fixed non-x86 Windows builds with `MDBX_WITHOUT_MSVC_CRT=ON` and `MDBX_BUILD_SHARED_LIBRARY=ON`.
Minors:
-------
- Resolve minor MSVC warnings: avoid `/INCREMENTAL[:YES]` with `/LTCG`, `/W4` with `/W3`, the `C5105` warning.
- Switched to using `MDBX_EPERM` instead of `MDBX_RESULT_TRUE' to indicate that the geometry cannot be updated.
- Added `NULL` checking during memory allocation inside `mdbx_chk`.
- Resolved all warnings from MinGW while used without CMake.
- Added inheretable `target_include_directories()` to `CMakeLists.txt` for easy integration.
- Added build-time checks and paranoid runtime assertions for the `off_t` arguments of `fcntl()` which are used for locking.
- Added `-Wno-lto-type-mismatch` to avoid false-positive warnings from old GCC during LTO-enabled builds.
- Added checking for TID (system thread id) to avoid hang on 32-bit Bionic/Android within `pthread_mutex_lock()`.
- Reworked `MDBX_BUILD_TARGET` of CMake builds.
- Added `CMAKE_HOST_ARCH` and `CMAKE_HOST_CAN_RUN_EXECUTABLES_BUILT_FOR_TARGET`.
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
The stable release with the hotfix/workaround for a flaw of Linux 4.19 (at least) unified page/buffer cache.
See [issue#269](https://github.com/erthink/libmdbx/issues/269) for more information.
Acknowledgements:
-----------------
- [Simon Leier](https://github.com/leisim) for reporting and testing.
- [Kai Wetlesen](https://github.com/kaiwetlesen) for [RPMs](http://copr.fedorainfracloud.org/coprs/kwetlesen/libmdbx/).
- [Tullio Canepa](https://github.com/canepat) for reporting C++ API issue and contributing.
Fixes:
------
- [Added workaround](https://github.com/erthink/libmdbx/issues/269) for a flaw of Linux 4.19 (at least) unified page/buffer cache.
- [Fixed/Reworked](https://github.com/erthink/libmdbx/pull/270) move-assignment operators for "managed" classes of C++ API.
- Fixed potential `SIGSEGV` while open DB with overrided non-default page size.
- [Made](https://github.com/erthink/libmdbx/issues/267) `mdbx_env_open()` idempotence in failure cases.
- Refined/Fixed pages reservation inside `mdbx_update_gc()` to avoid non-reclamation in a rare cases.
- Fixed typo in a retained space calculation for the hsr-callback.
Minors:
-------
- Reworked functions for meta-pages, split-off non-volatile.
- Disentangled C11-atomic fences/barriers and pure-functions (with `__attribute__((__pure__))`) to avoid compiler misoptimization.
- Fixed hypotetic unaligned access to 64-bit dwords on ARM with `__ARM_FEATURE_UNALIGNED` defined.
- Reasonable paranoia that makes clarity for code readers.
- Minor fixes Doxygen references, comments, descriptions, etc.
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
