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mdbx: Merge branch 'devel'.

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Leo Yuriev 2016-12-23 05:02:37 +03:00
commit 598989c6a5
3 changed files with 25 additions and 10 deletions
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12
CHANGES
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@ -1,8 +1,6 @@
MDBX
Add MDB_PREV_MULTIPLE
Fix MDB_CP_COMPACT (ITS#8209)
Add error MDB_PROBLEM, replace some MDB_CORRUPTED
Backport fixes for ITS#8406
LMDB 0.9.19 Release Engineering
Fix mdb_env_cwalk cursor init (ITS#8424)
@ -11,6 +9,16 @@ LMDB 0.9.19 Release Engineering
Optimize mdb_drop
Fix xcursors after mdb_cursor_del (ITS#8406)
Fix MDB_NEXT_DUP after mdb_cursor_del (ITS#8412)
Fix mdb_cursor_put resetting C_EOF (ITS#8489)
Fix mdb_env_copyfd2 to return EPIPE on SIGPIPE (ITS#8504)
Fix mdb_env_copy with empty DB (ITS#8209)
Fix behaviors with fork (ITS#8505)
Fix mdb_dbi_open with mainDB cursors (ITS#8542)
Fix F_NOCACHE on MacOS, error is non-fatal (ITS#7682)
Documentation
Cleanup doxygen nits
Note reserved vs actual mem/disk usage
LMDB 0.9.18 Release (2016/02/05)
already done for mdbx - Fix robust mutex detection on glibc 2.10-11 (ITS#8330)

2
Doxyfile
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@ -253,7 +253,7 @@ IDL_PROPERTY_SUPPORT = YES
# member in the group (if any) for the other members of the group. By default
# all members of a group must be documented explicitly.
DISTRIBUTE_GROUP_DOC = NO
DISTRIBUTE_GROUP_DOC = YES
# Set the SUBGROUPING tag to YES (the default) to allow class member groups of
# the same type (for instance a group of public functions) to be put as a

21
mdb.c
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@ -614,19 +614,26 @@ typedef struct MDB_page {
/** Header for a single key/data pair within a page.
* Used in pages of type #P_BRANCH and #P_LEAF without #P_LEAF2.
* We guarantee 2-byte alignment for 'MDB_node's.
*
* #mn_lo and #mn_hi are used for data size on leaf nodes, and for child
* pgno on branch nodes. On 64 bit platforms, #mn_flags is also used
* for pgno. (Branch nodes have no flags). Lo and hi are in host byte
* order in case some accesses can be optimized to 32-bit word access.
*
* Leaf node flags describe node contents. #F_BIGDATA says the node's
* data part is the page number of an overflow page with actual data.
* #F_DUPDATA and #F_SUBDATA can be combined giving duplicate data in
* a sub-page/sub-database, and named databases (just #F_SUBDATA).
*/
typedef struct MDB_node {
/** lo and hi are used for data size on leaf nodes and for
* child pgno on branch nodes. On 64 bit platforms, flags
* is also used for pgno. (Branch nodes have no flags).
* They are in host byte order in case that lets some
* accesses be optimized into a 32-bit word access.
*/
/** part of data size or pgno
* @{ */
#if BYTE_ORDER == LITTLE_ENDIAN
unsigned short mn_lo, mn_hi; /**< part of data size or pgno */
unsigned short mn_lo, mn_hi;
#else
unsigned short mn_hi, mn_lo;
#endif
/** @} */
/** @defgroup mdb_node Node Flags
* @ingroup internal
* Flags for node headers.