ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-10-18 22:09:03 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: добавление mdbx_env_get_pairsize4page_max() и mdbx_env_get_valsize4page_max().

Browse Source
This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2022-10-10 16:33:51 +03:00
parent 9cdee2adb5
commit c3dd60fcb6
2 changed files with 44 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
mdbx.h
View File

@@ -3307,6 +3307,32 @@ mdbx_env_get_maxvalsize_ex(const MDBX_env *env, MDBX_db_flags_t flags);
MDBX_DEPRECATED MDBX_NOTHROW_PURE_FUNCTION LIBMDBX_API int
mdbx_env_get_maxkeysize(const MDBX_env *env);
/** \brief Returns maximal size of key-value pair to fit in a single page
* for specified database flags.
* \ingroup c_statinfo
*
* \param [in] env An environment handle returned by \ref mdbx_env_create().
* \param [in] flags Database options (\ref MDBX_DUPSORT, \ref MDBX_INTEGERKEY
* and so on). \see db_flags
*
* \returns The maximum size of a data can write,
* or -1 if something is wrong. */
MDBX_NOTHROW_PURE_FUNCTION LIBMDBX_API int
mdbx_env_get_pairsize4page_max(const MDBX_env *env, MDBX_db_flags_t flags);
/** \brief Returns maximal data size in bytes to fit in a leaf-page or
* single overflow/large-page for specified database flags.
* \ingroup c_statinfo
*
* \param [in] env An environment handle returned by \ref mdbx_env_create().
* \param [in] flags Database options (\ref MDBX_DUPSORT, \ref MDBX_INTEGERKEY
* and so on). \see db_flags
*
* \returns The maximum size of a data can write,
* or -1 if something is wrong. */
MDBX_NOTHROW_PURE_FUNCTION LIBMDBX_API int
mdbx_env_get_valsize4page_max(const MDBX_env *env, MDBX_db_flags_t flags);
/** \brief Sets application information (a context pointer) associated with
* the environment.
* \see mdbx_env_get_userctx()