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mdbx: minor refine internals comments/docs.

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Change-Id: Ie1dd2233259948b4906e66fb191832dbc6526c47
This commit is contained in:
Leonid Yuriev 2020-10-28 03:16:57 +03:00
parent b1d21d571f
commit 105947b50c
2 changed files with 2 additions and 2 deletions
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2
src/bits.md
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@ -1,7 +1,7 @@
N | MASK | ENV | TXN | DB | PUT | DBI | NODE | PAGE | N | MASK | ENV | TXN | DB | PUT | DBI | NODE | PAGE |
--|---------|-----------|--------------|----------|-----------|------------|---------|----------| --|---------|-----------|--------------|----------|-----------|------------|---------|----------|
0 |0000 0001|ALLOC_CACHE|TXN_FINISHED | | |DBI_DIRTY |F_BIGDATA|P_BRANCH 0 |0000 0001|ALLOC_CACHE|TXN_FINISHED | | |DBI_DIRTY |F_BIGDATA|P_BRANCH
1 |0000 0002|ALLOC_GC |TXN_ERROR |REVERSEKEY| |DBI_STALE |F_SUBDATA|P_LEAF 1 |0000 0002|ALLOC_GC |TXN_ERROR |REVERSEKEY|F_SUBDATA |DBI_STALE |F_SUBDATA|P_LEAF
2 |0000 0004|ALLOC_NEW |TXN_DIRTY |DUPSORT | |DBI_FRESH |F_DUPDATA|P_OVERFLOW 2 |0000 0004|ALLOC_NEW |TXN_DIRTY |DUPSORT | |DBI_FRESH |F_DUPDATA|P_OVERFLOW
3 |0000 0008| |TXN_SPILLS |INTEGERKEY| |DBI_CREAT | |P_META 3 |0000 0008| |TXN_SPILLS |INTEGERKEY| |DBI_CREAT | |P_META
4 |0000 0010| |TXN_HAS_CHILD |DUPFIXED |NOOVERWRITE|DBI_VALID | |P_DIRTY 4 |0000 0010| |TXN_HAS_CHILD |DUPFIXED |NOOVERWRITE|DBI_VALID | |P_DIRTY

2
src/internals.h
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@ -371,7 +371,7 @@ typedef struct MDBX_meta {
typedef struct MDBX_page { typedef struct MDBX_page {
union { union {
struct MDBX_page *mp_next; /* for in-memory list of freed pages */ struct MDBX_page *mp_next; /* for in-memory list of freed pages */
uint64_t mp_txnid; /* txnid during which the page has been COW-ed */ uint64_t mp_txnid; /* txnid that committed this page */
}; };
uint16_t mp_leaf2_ksize; /* key size if this is a LEAF2 page */ uint16_t mp_leaf2_ksize; /* key size if this is a LEAF2 page */
#define P_BRANCH 0x01 /* branch page */ #define P_BRANCH 0x01 /* branch page */