1142 Commits

Author SHA1 Message Date
Leonid Yuriev
8f31aad0fb mdbx: use MAX_TXN internally (cosmetics).
Change-Id: Ic8171dbfa8bb32272e46e939223316f6182d3a7a
2020-05-15 18:13:10 +03:00
Leonid Yuriev
463a8af35b mdbx: copy unaligned keys/values instead of return error to avoid break compatibility.
Change-Id: I2f95674a3836568a5c51155ca70da0683c50b424
2020-05-15 11:30:35 +03:00
Leonid Yuriev
c2c74075e7 mdbx: fix Valgrind minor warning with MDBX_DEBUG > 1.
Change-Id: Idb93c6a3843e76071a55cbd6c34ddd22541c77d3
2020-05-15 11:30:35 +03:00
Leonid Yuriev
c6edd6fb91 mdbx: exclude MDBX_NOSUBDIR from persistent flags. 2020-05-15 11:30:35 +03:00
Leonid Yuriev
e28d223d42 mdbx: fix MDBX_NODUPDATA handling for key-value data.
More for https://github.com/erthink/libmdbx/issues/99
in continue to 9428efd2ae9f7fe984422b5eb1fc47f732236b51

Change-Id: I56050ddf5e56807a11d8613780c3ba76cc16d324
2020-05-15 11:30:35 +03:00
Leonid Yuriev
8c8c86038a mdbx: fix unsigned-to-ptrdiff casting inside estimate().
Fixup after a238179c23e7378b2019de5229b2166cdfe515c7

Change-Id: I316e4aa1f41462fd0017f8e0a7f6d6e82aa4f3db
2020-05-15 11:30:35 +03:00
Leonid Yuriev
e6b48b613a mdbx: more checking for MDBX_DEBUG.
Change-Id: Ie6bedda942bc5623e5d7cee5d2011e41009ea3d9
2020-05-15 11:30:35 +03:00
Leonid Yuriev
f6fe3b44de mdbx: fix fetching of first/lower key in case starting from LEAF2-page during page merge.
More for b3f375c57f9ff0f1f58e77227374b1cfddcd3278
2020-05-15 11:30:35 +03:00
Leonid Yuriev
57d76d1f7a mdbx: checking the order of keys on all pages during the audit (squashed). 2020-05-15 11:29:23 +03:00
Leonid Yuriev
30bb2363e1 mdbx: use comparators instead of is_samedata(). 2020-05-15 08:59:10 +03:00
Leonid Yuriev
b7fb9bdeb1 mdbx: fix mdbx_xcursor_init1() for prev created databases. 2020-05-15 08:59:10 +03:00
Leonid Yuriev
d986d09b7b mdbx: rework min/max length checking for keys & values (squashed). 2020-05-15 08:59:03 +03:00
Leonid Yuriev
9736a36efb mdbx: add branch-less flags_db2sub(). 2020-05-11 02:03:55 +03:00
Leonid Yuriev
e4ce115876 mdbx: fix MSVC warnings (minor).
Change-Id: I614ee9ec1c21586fbe08c6cedb395ac57a81914f
2020-05-10 03:56:25 +03:00
Leonid Yuriev
5b4b3fa9ea mdbx-windows: fix MDBX_AVOID_CRT option & ntdll.def distribution.
Resolve https://github.com/erthink/libmdbx/issues/100

Change-Id: I18ab055e79e249fca856353b2585739c88e01758
2020-05-10 03:41:28 +03:00
Leonid Yuriev
a238179c23 mdbx: rename/reorganize internal fields for clarity.
Change-Id: I9b23a8ca271f30ebedda9cd8d21094b4797f8bb3
2020-05-09 20:00:31 +03:00
Leonid Yuriev
8ee3c6ddb0 mdbx: minor fix return MDBX_EBADSIGN.
Change-Id: Ia0da8b4c2a5f0776688c92ad50433eed5e83b73c
2020-05-09 20:00:25 +03:00
Leonid Yuriev
9428efd2ae mdbx: avoid upsertion (early exit) the same key-value data.
Resolve https://github.com/erthink/libmdbx/issues/99

Change-Id: I6aac66d6cb6818951e29bc8a3626c342d6137151
2020-05-09 03:25:20 +03:00
Leonid Yuriev
86dad2d727 mdbx: drop obsolete/unused mn_hi & mn_lo.
Change-Id: Ie0099c5afa66ccb679b124f3feb095a364519edc
2020-05-09 03:25:20 +03:00
Leonid Yuriev
db635c9fbb mdbx: fix/don't clean env-signature if open failed. 2020-05-09 02:48:56 +03:00
Leonid Yuriev
83cf4cd3d5 mdbx: refine/fix mdbx_dbi_open_ex() to safe concurrently opening the same handle from difference threads.
Change-Id: Ib01b6015bbb28eb2777f9206d6a5ac2cf9c2575f
2020-05-09 02:46:35 +03:00
Leonid Yuriev
f11607dfa6 mdbx: minor fix/workaround to avoid UBSAN traps for memcpy(ptr, nullptr, 0). 2020-05-03 01:48:12 +03:00
Leonid Yuriev
175c361018 mdbx: avoid gcc-anylyzer false-positive warnings. 2020-05-02 22:38:53 +03:00
Leonid Yuriev
b943466727 mdbx: fix missing comma in err-msg array (Coverity).
Change-Id: Ic441e63cf8ed14108dfe7c38e269f819879e21ce
2020-05-01 02:42:28 +03:00
Leonid Yuriev
1488457641 mdbx-tools: hide '-n' option (NOSUBDIR) since now it guessed automatically.
Change-Id: I8668ec919f2f90b133270a566f380066dbb8589f
2020-04-30 16:59:46 +03:00
Leonid Yuriev
b3f375c57f mdbx: fix branch-page merge.
Change-Id: I48dce339d1735cd8d270f1ba1c091572daa897a6
2020-04-30 16:57:29 +03:00
Leonid Yuriev
eec465704d mdbx: fix div-by-zero while copy-with-compaction for non-resizeable DB.
Change-Id: Ice7f5675c3b2864195874f2e3c4ade9148cad048
2020-04-29 18:57:00 +03:00
Leonid Yuriev
fac0d47913 mdbx: add MDBX_CP_FORCE_RESIZEABLE option.
Change-Id: I5fcdae7933dbbfbf8629e8a0423545a4f6b9f6b6
2020-04-29 18:57:00 +03:00
Leonid Yuriev
37abc146b4 mdbx-tools: minor refine mdbx_chk output.
Change-Id: I0d1b70029b861a6048bba8c0239138160c7c6425
2020-04-29 18:39:20 +03:00
Leonid Yuriev
b44520b7d1 mdbx: don't reset last txnid while copy with compactification.
Change-Id: Ia7c1b968ab6a21a3c178b45408088c84647276b1
2020-04-29 18:37:37 +03:00
Leonid Yuriev
eea1432e80 mdbx: auto-reset running transaction in mdbx_txn_renew().
Change-Id: If93ad13bb5a6dab8dd5fcb80882b5eb83fdf3dad
2020-04-26 03:32:50 +03:00
Leonid Yuriev
3b741a6d5f mdbx: automatically abort errored transaction in mdbx_txn_commit().
Change-Id: I2cfac73c69a8ff46870778f174555724f8363a79
2020-04-26 03:23:04 +03:00
Leonid Yuriev
673570ec2a mdbx: auto-choose pagesize for a large databases.
Change-Id: I3f8279ba077a8c31c70504d32fb619b6601cc5c4
2020-04-23 17:15:55 +03:00
Leonid Yuriev
a5fb85f0fc mdbx: avoiding MDBX_UTTERLY_NOSYNC as result of flags merge.
Change-Id: Ia39de7b60a00b04a92ddf1468c995c4684f45474
2020-04-22 20:35:12 +03:00
Leonid Yuriev
21f9a445e8 mdbx: rework env_open() to auto-handling MDBX_NOSUBDIR for any exists database.
Change-Id: Id8a26937c9013c750323646df01c3080a909a4c0
2020-04-22 17:33:59 +03:00
Leonid Yuriev
30f7f15778 mdbx: automatic MDBX_NOSUBDIR while opening existing database.
Change-Id: Ieb2042d70b42bc2a572ac1083c160fa3cdbb7556
2020-04-22 16:58:38 +03:00
Leonid Yuriev
5765d92ac7 mdbx: return MDBX_EBADSIGN when mdbx_env_close() called concurrently from several threads.
Change-Id: I03a8c87bc51eefc5236baa52cee8b12a9f8aa0e2
2020-04-20 17:00:41 +03:00
Leonid Yuriev
83e303b059 mdbx: alter MDBX_CURSOR_FULL description.
Change-Id: I70d13e7503d10c6050bd17e4dd8bd814e46799af
2020-04-19 17:33:32 +03:00
Leonid Yuriev
1e9cc6b0a5 mdbx: more 'const' for API.
Change-Id: Iedea253733105acc4010e07a65a594f8ea52ce56
2020-04-19 17:33:32 +03:00
Leonid Yuriev
90bf7eb817 mdbx: fix/refine MDBX_BUILD_SHARED_LIBRARY definition.
Change-Id: If4e3d32b0ce360eb7275d962fff4b31e53926054
2020-04-17 00:37:57 +03:00
Leonid Yuriev
971f924c44 mdbx-build: rearrange source files, rework CMakeLists.txt and refine GNUMakefile (squashed).
Change-Id: Id73d346695011dab2f670bb9e6293a1e5a1835ca
2020-04-17 00:37:57 +03:00
Jens Alfke
f414876e99 mdbx: fixed AddressSanitizer errors after closing db.
Unpoison memory before unmapping, to avoid leaving dangling poisoned
address space. This caused Clang AddressSanitizer false errors after
database was closed.

More for https://github.com/erthink/libmdbx/issues/73

Close https://github.com/erthink/libmdbx/pull/93

Change-Id: I9cf19a06521330a90a62ed15317e1f966f0bd56f
2020-04-15 02:29:05 +03:00
Leonid Yuriev
ab2c98e41c mdbx: support for Android/Bionic.
Change-Id: Ia6a4d8a7848ffe3e488b4a92c9ec53c61c78a9bb
2020-04-13 23:36:56 +03:00
Leonid Yuriev
595482ca57 mdbx: fix typo (extra closing parenthesis).
Change-Id: Icae740a640ab59dedc7608a725cc24623dba62bd
2020-04-13 23:35:08 +03:00
Leonid Yuriev
0986cb9379 mdbx-posix: fix feature-testing for PTHREAD_MUTEX_ROBUST.
Change-Id: I16f008b8448a70d4145ba2bcfe22b3326c8a0e21
2020-04-13 22:46:55 +03:00
Leonid Yuriev
abf38e97cc mdbx: minor fix prev commit.
More for https://github.com/erthink/libmdbx/issues/97

Change-Id: I09ffe3430aa07bf5b01d9ad991affa004bb998a6
2020-04-11 20:51:24 +03:00
Leonid Yuriev
f89c3eda17 mdbx: crutch for WSL.
Fixes https://github.com/erthink/libmdbx/issues/97

Change-Id: Ia863ffc8cd939b1af65f21ab0c5c8197abf4e793
2020-04-11 20:33:36 +03:00
Leonid Yuriev
5a81413f17 mdbx-posix: fix comment typo.
Change-Id: I4573926a50ba392222dc738be3a7b9b3fabbb368
2020-04-11 17:21:36 +03:00
Leonid Yuriev
c590eb656f mdbx: fix null-deref in an ASAN-enabled build while opening DB with error.
More for https://github.com/erthink/libmdbx/issues/95

Change-Id: I6250fe7b0fbbcae497c2b5c1da9b4e9f78ecf0f0
2020-04-11 14:55:03 +03:00
Leonid Yuriev
17d7d48281 mdbx: fix null-deref in an ASAN-enabled build while opening DB with MDBX_RDONLY.
Fixes https://github.com/erthink/libmdbx/issues/95

Change-Id: I1c000d3a456897f73367a590ef9fbda8ae90391c
2020-04-11 03:06:05 +03:00
Jens Alfke
48b6f76159
mdbx: Don't include <sys/vmmeter.h> on Apple platforms (#94)
A simpler fix for the issue of this header being missing on iOS.
It's not actually needed at all on Mach-based OSs.

Fixes https://github.com/erthink/libmdbx/issues/92
2020-04-10 21:40:58 +03:00
Leonid Yuriev
99f07f5054 mdbx: add iOS notes to README.
Change-Id: Ia46a43376370a73b179dbc4ab65e43956ee8c43a
2020-04-08 02:05:18 +03:00
Leonid Yuriev
81dca1f7e9 mdbx-cmake: add MDBX_BUILD_TOOLS option.
Change-Id: Ib6329fdea66dd52720021b80a6fecdaa078ceb2b
2020-04-07 23:06:18 +03:00
Leonid Yuriev
ed6863851e mdbx: crutch for iOS.
Workaround for https://github.com/erthink/libmdbx/issues/92

Change-Id: Id8ed900d1310212ae0edd4bf6ab11bdba9c106a1
2020-04-07 17:35:49 +03:00
Leonid Yuriev
921f43da6f mdbx: fix ceiling/flooring madvise-edge inside mdbx_sync_locked().
Fixes https://github.com/erthink/libmdbx/issues/91

Change-Id: I17da72d9a53a2c7453d81488bd3297063de0b7d1
2020-04-07 03:54:48 +03:00
Leonid Yuriev
94e58d7acc mdbx: more explicit casting to size_t (paranoia).
Change-Id: I1c65943cdcdd77cc12bc27d9ced19765ea7911bb
2020-04-07 03:48:23 +03:00
Leonid Yuriev
bf0cff9a8a mdbx: add & use floor_powerof2().
Change-Id: Ib5be7d5a68dc7944e208d75094050383ccdfa6d0
2020-04-07 03:48:20 +03:00
Leonid Yuriev
a846fb0d21 mdbx: rename roundup_powerof2() to ceil_powerof2().
Change-Id: Ie22f10ffa6637ef74f2c705fad5fc45a8d19d22e
2020-04-07 03:45:11 +03:00
Leonid Yuriev
4ad1c2daed mdbx: minor fix/workaround to avoid GCC 10.x pedantic warnings.
Change-Id: If67c1ae593ad2c39130054475c37321dca761f5b
2020-04-07 01:54:58 +03:00
Leo Yuriev
3f7c9846e7 mdbx: use uintptr_t instead of size_t for pointer-wide values and types.
More for https://github.com/erthink/libmdbx/issues/88

Change-Id: Ic625096df3c09d0dd578c7b79aa302be35480699
2020-04-04 16:52:44 +03:00
Leo Yuriev
75de63dff1 mdbx: refine type-casting inside mdbx_thread_self() to avoid warning.
2 of 2 for https://github.com/erthink/libmdbx/issues/88

Change-Id: Ic4994141d23a5417b18f6b03a3e4038859fb9210
2020-04-04 16:52:42 +03:00
Leo Yuriev
089d7212e7 mdbx: fix mdbx_build_info for undefined flags case.
1 of 2 for https://github.com/erthink/libmdbx/issues/88

Change-Id: I079b329abe8f20793dc78c90ea55f874693dde43
2020-04-04 16:52:39 +03:00
Leo Yuriev
d329ea1fe0 mdbx-tools: fix txnid_t casting inside mdbx_stat.
Change-Id: I69799d8caca3e6692a433b2e62e7b2867b152b00
2020-04-04 16:01:05 +03:00
Leonid Yuriev
8f5ae79b51 mdbx: bump version to 0.7.x
Change-Id: I6cb06fbd7119eed086b54a9760db1e0edf5de07b
2020-03-18 17:19:12 +03:00
Leonid Yuriev
251d34d6e6 mdbx-doc: more for custom comparators.
Change-Id: I3326c5bdedbbdb01b1865bff68aa7ba8bc7056cc
2020-03-02 13:50:33 +03:00
Leo Yuriev
76e29c21f1 mdbx: merge branch 'devel' (crutches for Wine).
Change-Id: I1779bc6987449e403216584cdd2846e910f34c8a
2020-02-28 19:05:47 +03:00
Leo Yuriev
5072b45026 mdbx: rename MDBX_MAP_RESIZED to MDBX_UNABLE_EXTEND_MAPSIZE.
Change-Id: I22fbdb4f08fd7a6ae37da42e6827677ae8a8337b
2020-02-28 16:40:56 +03:00
Leo Yuriev
63449a44c5 mdbx-cmake: #if/#endif instead of cmake-conditions for posix/windows sources.
Change-Id: Ic95bd3ba345160cf1d68c79f11d6560d4c41cb2b
2020-02-28 15:51:12 +03:00
Leonid Yuriev
ecffc831fa mdbx-tools: avoids extra error messages "bad txn" from mdbx_chk when DB is corrupted.
Change-Id: I6b92aced83bcf7e0c8e5c7108ddcf60714c9b30c
2020-02-27 16:04:00 +03:00
Leonid Yuriev
6248b67f75 mdbx-windows: more for running under Wine.
Wine unable create mapped-view large tran secton size.

More for https://github.com/erthink/libmdbx/issues/83

Change-Id: I93e98d58a827c785f8257cd9cac387a333e59621
2020-02-24 20:46:36 +03:00
Leonid Yuriev
fbf55e17cb mdbx-windows: one more workaround for Wine.
SetFileInformationByHandle() is not implemented by Wine.

Change-Id: I61783c8d173397094cd6cbad7efc9d7aac57b470
002c:Call KERNEL32.SetFileInformationByHandle(00000060,00000006,0022f890,00000008) ret=127dd1b2
002c:fixme:file:SetFileInformationByHandle 0000000000000060, 6, 000000000022F890, 8
002c:Ret  KERNEL32.SetFileInformationByHandle() retval=00000000 ret=127dd1b2

Related to https://github.com/erthink/libmdbx/issues/83
2020-02-22 20:02:17 +03:00
Leonid Yuriev
289f2896d0 mdbx-windows: more for Wine.
Related to https://github.com/erthink/libmdbx/issues/83.

UnlockFile() cold return ERROR_LOCK_VIOLATION when file not locked, instead of ERROR_NOT_LOCKED.
Current versions of Wine seem to work correctly.

Change-Id: Ibc5bd4352184efc7f88705e7ae04d6656286a96e
2020-02-21 19:58:32 +03:00
Leonid Yuriev
4fed2d9fc0 mdbx-windows: minor workaround for MSVC "unresolved external symbol __except1 ..."
Workaround for MSVC error LNK2019: unresolved external symbol __except1 referenced in function __ftol3_except.
2020-02-19 16:31:25 +03:00
Leo Yuriev
9aa816dc73 mdbx-windows: using RegGetValueA() instead of wchar_t version.
Change-Id: I0848eaf2083985ae27fec605358329830b0733c2
2020-02-19 16:00:40 +03:00
Leo Yuriev
f750086bc1 mdbx-windows: rework workaround for Wine.
Resolves https://github.com/erthink/libmdbx/issues/83
in accordance with https://bugs.winehq.org/show_bug.cgi?id=48620

Change-Id: Ieb4385efdcd86c865184a783363cf6e90da14f61
2020-02-18 22:51:34 +03:00
Leonid Yuriev
bd3f234bce mdbx: update github repo address.
Change-Id: Ifa8bf0e09b297ba6f495dd8e04e5c67f6626d9cb
2020-02-18 02:22:47 +03:00
Leo Yuriev
60a6560a3b mdbx: workaround for NtExtendSection() on Wine.
This fixes https://github.com/erthink/libmdbx/issues/83

Change-Id: I8e00aa91c86348fad9dbe4285143671d9cb3f802
2020-02-17 22:55:17 +03:00
Leo Yuriev
d1173a1596 mdbx: drop unused WindowsNT API prototypes.
Change-Id: Ic929646653d0576671d6150a698e892d2145ae30
2020-02-17 19:44:05 +03:00
Leonid Yuriev
2356f3281b mdbx: use underscores for GNU-attributes.
Change-Id: Iefd371dd91da1db8ee86554208536b3004535317
2020-02-17 14:01:11 +03:00
Leonid Yuriev
cd0d84dbb6 mdbx: fix error message typo.
Change-Id: I25db309ff4fb063893c7c39d623e62eaceb8b60f
2020-02-03 23:35:43 +03:00
Leonid Yuriev
8214d674be mdbx: refine SEARCH_IMPL macro.
Change-Id: I975e480c047b88e0200aaf889334e8b83ab760ad
2020-02-03 18:13:17 +03:00
Leonid Yuriev
62a39d84b3 mdbx: fix aligned_alloc() usage. 2020-02-02 20:49:51 +03:00
Leonid Yuriev
6009bac1ed mdbx: move is_powerof2() and roundup_powerof2() into header. 2020-02-02 20:41:04 +03:00
Leonid Yuriev
e475db7ade mdbx: add MDBX_DBG_LEGACY_OVERLAP.
Change-Id: I7aecb925b553587efd6698dc3d52682ca98aa950
2020-02-02 15:07:04 +03:00
Leonid Yuriev
49d9779c84 mdbx: remove obsolete ASAN-related comment.
Corresponding drawback was fixed by 8c7cdfdc79e1ad0a7786d8039a52bffde673f7a5

Change-Id: I43ccf508377dc4b0bf5de6245e88c58dde0fc63e
2020-02-02 02:46:41 +03:00
Leonid Yuriev
a594f79e5f mdbx: refine/clarify error messages.
Change-Id: If2a38bdfb4a9fce176acb87fa452709bcfc5c972
2020-02-02 02:46:41 +03:00
Leonid Yuriev
17fe5f106b mdbx: check read/write txn overlapping for the same thread (MDBX_TXN_OVERLAPPING).
Change-Id: If3488df96bd1903d5e4ca0a1fea504075dbd4a20
2020-02-02 02:46:41 +03:00
Leonid Yuriev
db27654330 mdbx: rename MDBX_LAST_LMDB_ERRCODE and fix description.
Change-Id: I9a855871ae8821d0d10472c48b5467fd507c01a5
2020-02-02 02:46:41 +03:00
Leonid Yuriev
1cbad5bd3f mdbx: don't store thread-id into reader lock-slot in MDBX_NOTLS mode.
Change-Id: I8453565a8c0a7c56b6dbd383c31ff5be828c8679
2020-02-01 23:08:07 +03:00
Leonid Yuriev
08753b46a1 mdbx: cleanup tabs (cosmetics).
Change-Id: If941ea89d844f98f274da4ddfc3f2ae97986eeb7
2020-02-01 20:44:29 +03:00
Leonid Yuriev
fb1d600597 mdbx: speedup debug/checked build.
This resolves https://github.com/leo-yuriev/libmdbx/issues/80

Change-Id: I20596f87db17ce01379dae5f58f4c2b158a04a4a
2020-01-29 03:29:42 +03:00
Leonid Yuriev
c1ad86c368 mdbx: fixes for modern Coverity.
This resolves https://github.com/leo-yuriev/libmdbx/issues/81

Change-Id: Id501bf49055b54240da14723aef0115fc3a27672
2020-01-28 19:37:56 +03:00
Leonid Yuriev
7ea1a4e0e8 mdbx: fix key_from_jsonInteger() for MSVC.
Change-Id: I3fc6a6da57707750cb2e8429bbaf10ff1de2dde2
2020-01-28 01:47:50 +03:00
Leonid Yuriev
2c08ec21fd mdbx: fix compatibility (use zero for invalid DBI).
Change-Id: I4ab6430eb96d97991cbd0c151dfd98a9930805d2
2020-01-27 03:00:13 +03:00
Leonid Yuriev
d159a8252d mdbx: refine network-sorting.
Change-Id: I086626c3da05b11362612d87eae23371f67ea1b0
2020-01-27 00:47:18 +03:00
Leonid Yuriev
308548e226 mdbx: minor refine/speedup mdbx_page_get().
Change-Id: Ia11a76f0255db1a56948438cdc333ebd67d88193
2020-01-26 19:07:00 +03:00
Leonid Yuriev
a8c5daf46a mdbx: minor refine/speedup mdbx_node_search().
Change-Id: Ie3dd42de25e37bff177018cd15108b97cfcb049c
2020-01-26 18:00:35 +03:00
Leonid Yuriev
2ce9ace4d3 mdbx: documenting and checking key and value alignment for MDBX_INTEGERKEY and MDBX_INTEGERDUP.
This resolves https://github.com/leo-yuriev/libmdbx/issues/79.

Change-Id: I819a6eca3018361e5896d5ccce7e4c0ca57c8b38
2020-01-26 14:54:40 +03:00
Leonid Yuriev
1ee1b269e6 mdbx: minor optimization around memcpy().
Change-Id: Id0dd4ac693a4ddb6294bdb0f2fc5d2aec69d0efd
2020-01-26 14:44:50 +03:00
Leonid Yuriev
ebcbcbfe31 mdbx: avoud int64-to-double conversion key_from_jsonInteger().
More for https://github.com/leo-yuriev/libmdbx/issues/76

This is expected to be a workaround for the MSVC2019 bug
"MSVCRT.lib(ftol3.obj) : error LNK2001: unresolved external symbol __except1".
https://ci.appveyor.com/project/leo-yuriev/libmdbx/builds/30273569/job/lurrftum1nkbu5a3#L109

Change-Id: Ie6da02b14d0b973c7172af063caf4fdc44bf89ac
2020-01-22 19:41:01 +03:00