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mdbx: add workaround for old MSVC and/or old Windows SDK.

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Resolves https://github.com/erthink/libmdbx/issues/265.

Change-Id: I295b5d9d5ecd670ccf258791bf87379a3ca17f21
This commit is contained in:
Leonid Yuriev
2022-01-31 23:29:03 +03:00
parent 1c409a38d3
commit 79e1cc3bbc
4 changed files with 62 additions and 28 deletions
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20
src/internals.h
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@@ -674,19 +674,19 @@ typedef struct MDBX_lockinfo {
/* Marker to distinguish uniqueness of DB/CLK. */
MDBX_atomic_uint64_t mti_bait_uniqueness;
alignas(MDBX_CACHELINE_SIZE) /* cacheline ---------------------------------*/
MDBX_ALIGNAS(MDBX_CACHELINE_SIZE) /* cacheline ----------------------------*/
#if MDBX_ENABLE_PGOP_STAT
/* Statistics of costly ops of all (running, completed and aborted)
* transactions */
MDBX_pgop_stat_t mti_pgop_stat;
/* Statistics of costly ops of all (running, completed and aborted)
* transactions */
MDBX_pgop_stat_t mti_pgop_stat;
#endif /* MDBX_ENABLE_PGOP_STAT*/
alignas(MDBX_CACHELINE_SIZE) /* cacheline ---------------------------------*/
MDBX_ALIGNAS(MDBX_CACHELINE_SIZE) /* cacheline ----------------------------*/
/* Write transaction lock. */
#if MDBX_LOCKING > 0
mdbx_ipclock_t mti_wlock;
mdbx_ipclock_t mti_wlock;
#endif /* MDBX_LOCKING > 0 */
atomic_txnid_t mti_oldest_reader;
@@ -708,11 +708,11 @@ typedef struct MDBX_lockinfo {
/* Shared anchor for tracking readahead edge and enabled/disabled status. */
pgno_t mti_readahead_anchor;
alignas(MDBX_CACHELINE_SIZE) /* cacheline ---------------------------------*/
MDBX_ALIGNAS(MDBX_CACHELINE_SIZE) /* cacheline ----------------------------*/
/* Readeaders registration lock. */
#if MDBX_LOCKING > 0
mdbx_ipclock_t mti_rlock;
mdbx_ipclock_t mti_rlock;
#endif /* MDBX_LOCKING > 0 */
/* The number of slots that have been used in the reader table.
@@ -723,8 +723,8 @@ typedef struct MDBX_lockinfo {
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
(!defined(__cplusplus) && defined(_MSC_VER))
alignas(MDBX_CACHELINE_SIZE) /* cacheline ---------------------------------*/
MDBX_reader mti_readers[] /* dynamic size */;
MDBX_ALIGNAS(MDBX_CACHELINE_SIZE) /* cacheline ----------------------------*/
MDBX_reader mti_readers[] /* dynamic size */;
#endif /* C99 */
} MDBX_lockinfo;