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 removed assertion could be triggered in debug builds when a reading
and writing transactions are overlapped simultaneously with a change of DB
size.
There were no other negative consequences.
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>
