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Comment MDB_node, mdb_page_unspill, mdb_update_key

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This commit is contained in:
Hallvard Furuseth 2013-12-11 11:57:13 +01:00
parent 7e453c9763
commit 2ce9ffa003
1 changed files with 4 additions and 3 deletions
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7
libraries/liblmdb/mdb.c
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@ -691,7 +691,8 @@ typedef struct MDB_page {
#define OVPAGES(size, psize) ((PAGEHDRSZ-1 + (size)) / (psize) + 1) #define OVPAGES(size, psize) ((PAGEHDRSZ-1 + (size)) / (psize) + 1)
/** Header for a single key/data pair within a page. /** Header for a single key/data pair within a page.
* We guarantee 2-byte alignment for nodes. * Used in pages of type #P_BRANCH and #P_LEAF without #P_LEAF2.
* We guarantee 2-byte alignment for 'MDB_node's.
*/ */
typedef struct MDB_node { typedef struct MDB_node {
/** lo and hi are used for data size on leaf nodes and for /** lo and hi are used for data size on leaf nodes and for
@ -1847,7 +1848,7 @@ mdb_page_copy(MDB_page *dst, MDB_page *src, unsigned int psize)
* If a page being referenced was spilled to disk in this txn, bring * If a page being referenced was spilled to disk in this txn, bring
* it back and make it dirty/writable again. * it back and make it dirty/writable again.
* @param[in] txn the transaction handle. * @param[in] txn the transaction handle.
* @param[in] mp the page being referenced. * @param[in] mp the page being referenced. It must not be dirty.
* @param[out] ret the writable page, if any. ret is unchanged if * @param[out] ret the writable page, if any. ret is unchanged if
* mp wasn't spilled. * mp wasn't spilled.
*/ */
@ -6775,7 +6776,7 @@ mdb_cursor_dbi(MDB_cursor *mc)
return mc->mc_dbi; return mc->mc_dbi;
} }
/** Replace the key for a node with a new key. /** Replace the key for a branch node with a new key.
* @param[in] mc Cursor pointing to the node to operate on. * @param[in] mc Cursor pointing to the node to operate on.
* @param[in] key The new key to use. * @param[in] key The new key to use.
* @return 0 on success, non-zero on failure. * @return 0 on success, non-zero on failure.