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mdbx: immediately share dbi-handles for present TBLs (major).

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Change-Id: I75c998e06b3ccc25bd22ef389d119052d524d70b
This commit is contained in:
Leo Yuriev
2018-02-04 12:57:36 +03:00
parent e8ae506773
commit 6a0ff097ee
3 changed files with 132 additions and 51 deletions
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17
src/bits.h
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@@ -539,10 +539,11 @@ struct MDBX_txn {
/* Transaction DB Flags */
#define DB_DIRTY MDBX_TBL_DIRTY /* DB was written in this txn */
#define DB_STALE MDBX_TBL_STALE /* Named-DB record is older than txnID */
#define DB_NEW MDBX_TBL_NEW /* Named-DB handle opened in this txn */
#define DB_VALID 0x08 /* DB handle is valid, see also MDBX_VALID */
#define DB_USRVALID 0x10 /* As DB_VALID, but not set for FREE_DBI */
#define DB_DUPDATA 0x20 /* DB is MDBX_DUPSORT data */
#define DB_FRESH MDBX_TBL_FRESH /* Named-DB handle opened in this txn */
#define DB_CREAT MDBX_TBL_CREAT /* Named-DB handle created in this txn */
#define DB_VALID 0x10 /* DB handle is valid, see also MDBX_VALID */
#define DB_USRVALID 0x20 /* As DB_VALID, but not set for FREE_DBI */
#define DB_DUPDATA 0x40 /* DB is MDBX_DUPSORT data */
/* In write txns, array of cursors for each DB */
MDBX_cursor **mt_cursors;
/* Array of flags for each DB */
@@ -1179,14 +1180,6 @@ static __inline void SETDSZ(MDBX_node *node, size_t size) {
#define MDBX_COMMIT_PAGES IOV_MAX
#endif
/* Check txn and dbi arguments to a function */
#define TXN_DBI_EXIST(txn, dbi, validity) \
((dbi) < (txn)->mt_numdbs && ((txn)->mt_dbflags[dbi] & (validity)))
/* Check for misused dbi handles */
#define TXN_DBI_CHANGED(txn, dbi) \
((txn)->mt_dbiseqs[dbi] != (txn)->mt_env->me_dbiseqs[dbi])
/* LY: fast enough on most systems
*
* /