ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-11-07 07:18:56 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: парковка читающих транзакций.

Browse Source
This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2024-07-09 16:04:01 +03:00
parent f335a16c92
commit ec0ada7b8c
11 changed files with 399 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/proto.h
View File

@@ -12,7 +12,7 @@ MDBX_INTERNAL int audit_ex(MDBX_txn *txn, size_t retired_stored,
bool dont_filter_gc);
/* mvcc-readers.c */
MDBX_INTERNAL bsr_t mvcc_bind_slot(MDBX_env *env, const uintptr_t tid);
MDBX_INTERNAL bsr_t mvcc_bind_slot(MDBX_env *env);
MDBX_MAYBE_UNUSED MDBX_INTERNAL pgno_t mvcc_largest_this(MDBX_env *env,
pgno_t largest);
MDBX_INTERNAL txnid_t mvcc_shapshot_oldest(MDBX_env *const env,
@@ -56,10 +56,13 @@ MDBX_INTERNAL bool txn_refund(MDBX_txn *txn);
MDBX_INTERNAL txnid_t txn_snapshot_oldest(const MDBX_txn *const txn);
MDBX_INTERNAL int txn_abort(MDBX_txn *txn);
MDBX_INTERNAL int txn_renew(MDBX_txn *txn, unsigned flags);
MDBX_INTERNAL int txn_park(MDBX_txn *txn, bool autounpark);
MDBX_INTERNAL int txn_unpark(MDBX_txn *txn);
MDBX_INTERNAL int txn_check_badbits_parked(const MDBX_txn *txn, int bad_bits);
#define TXN_END_NAMES \
{"committed", "empty-commit", "abort", "reset", \
"reset-tmp", "fail-begin", "fail-beginchild"}
{"committed", "empty-commit", "abort", "reset", \
"reset-tmp", "fail-begin", "fail-beginchild", "ousted"}
enum {
/* txn_end operation number, for logging */
TXN_END_COMMITTED,
@@ -69,6 +72,7 @@ enum {
TXN_END_RESET_TMP,
TXN_END_FAIL_BEGIN,
TXN_END_FAIL_BEGINCHILD,
TXN_END_OUSTED,
TXN_END_OPMASK = 0x0F /* mask for txn_end() operation number */,
TXN_END_UPDATE = 0x10 /* update env state (DBIs) */,
@@ -76,7 +80,7 @@ enum {
TXN_END_EOTDONE = 0x40 /* txn's cursors already closed */,
TXN_END_SLOT = 0x80 /* release any reader slot if NOSTICKYTHREADS */
};
MDBX_INTERNAL int txn_end(MDBX_txn *txn, const unsigned mode);
MDBX_INTERNAL int txn_end(MDBX_txn *txn, unsigned mode);
MDBX_INTERNAL int txn_write(MDBX_txn *txn, iov_ctx_t *ctx);
/* env.c */