diff options
Diffstat (limited to 'lib/libsqlite3/src/btree.h')
| -rw-r--r-- | lib/libsqlite3/src/btree.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/libsqlite3/src/btree.h b/lib/libsqlite3/src/btree.h index fabedd9a530..b57d500c779 100644 --- a/lib/libsqlite3/src/btree.h +++ b/lib/libsqlite3/src/btree.h @@ -19,7 +19,7 @@ /* TODO: This definition is just included so other modules compile. It ** needs to be revisited. */ -#define SQLITE_N_BTREE_META 10 +#define SQLITE_N_BTREE_META 16 /* ** If defined as non-zero, auto-vacuum is enabled by default. Otherwise @@ -134,6 +134,11 @@ int sqlite3BtreeNewDb(Btree *p); ** For example, the free-page-count field is located at byte offset 36 of ** the database file header. The incr-vacuum-flag field is located at ** byte offset 64 (== 36+4*7). +** +** The BTREE_DATA_VERSION value is not really a value stored in the header. +** It is a read-only number computed by the pager. But we merge it with +** the header value access routines since its access pattern is the same. +** Call it a "virtual meta value". */ #define BTREE_FREE_PAGE_COUNT 0 #define BTREE_SCHEMA_VERSION 1 @@ -144,6 +149,7 @@ int sqlite3BtreeNewDb(Btree *p); #define BTREE_USER_VERSION 6 #define BTREE_INCR_VACUUM 7 #define BTREE_APPLICATION_ID 8 +#define BTREE_DATA_VERSION 15 /* A virtual meta-value */ /* ** Values that may be OR'd together to form the second argument of an @@ -196,6 +202,7 @@ void sqlite3BtreeClearCursor(BtCursor *); int sqlite3BtreeSetVersion(Btree *pBt, int iVersion); void sqlite3BtreeCursorHints(BtCursor *, unsigned int mask); int sqlite3BtreeIsReadonly(Btree *pBt); +int sqlite3HeaderSizeBtree(void); #ifndef NDEBUG int sqlite3BtreeCursorIsValid(BtCursor*); |