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mdbx: trinity of meta-pages.

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This commit is contained in:
Leo Yuriev
2017-05-24 21:43:29 +03:00
parent 141306644d
commit 9eeb00f448
8 changed files with 537 additions and 346 deletions
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17
mdbx.h
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@@ -427,13 +427,14 @@ typedef struct MDBX_stat {
/* Information about the environment */
typedef struct MDBX_envinfo {
void *me_mapaddr; /* Address of map, if fixed */
uint64_t me_mapsize; /* Size of the data memory map */
uint64_t me_last_pgno; /* ID of the last used page */
uint64_t me_last_txnid; /* ID of the last committed transaction */
uint32_t me_maxreaders; /* max reader slots in the environment */
uint32_t me_numreaders; /* max reader slots used in the environment */
uint64_t me_tail_txnid; /* ID of the last reader transaction */
void *me_mapaddr; /* Address of map, if fixed */
uint64_t me_mapsize; /* Size of the data memory map */
uint64_t me_recent_pgno; /* ID of the last used page */
uint64_t me_recent_txnid; /* ID of the last committed transaction */
uint32_t me_maxreaders; /* max reader slots in the environment */
uint32_t me_numreaders; /* max reader slots used in the environment */
uint64_t me_latter_reader_txnid; /* ID of the last reader transaction */
uint64_t me_meta0_txnid, me_meta0_sign;
uint64_t me_meta1_txnid, me_meta1_sign;
uint64_t me_meta2_txnid, me_meta2_sign;
} MDBX_envinfo;
@@ -868,7 +869,7 @@ LIBMDBX_API void *mdbx_env_get_userctx(MDBX_env *env);
*
* [in] env An environment handle returned by mdbx_env_create().
* [in] msg The assertion message, not including newline. */
typedef void MDBX_assert_func(MDBX_env *env, const char *msg,
typedef void MDBX_assert_func(const MDBX_env *env, const char *msg,
const char *function, unsigned line);
/* Set or reset the assert() callback of the environment.