Struct sqlite_rs::header::SqliteHeader

pub struct SqliteHeader { /* private fields */ }

Database File Format

Offset	Size	Description
0	16	The header string: “SQLite format 3\000”
16	2	The database page size in bytes. Must be a power of two between 512 and 32768 inclusive, or the bytes 1 representing a page size of 65536.
18	1	File format write version. 1 for legacy; 2 for WAL.
19	1	File format read version. 1 for legacy; 2 for WAL.
20	1	Bytes of unused “reserved” space at the end of each page. Usually 0.
21	1	Maximum embedded payload fraction. Must be 64.
22	1	Minimum embedded payload fraction. Must be 32.
23	1	Leaf payload fraction. Must be 32.
24	4	File change counter.
28	4	Size of the database file in pages. The “in-header database size”.
32	4	Page number of the first freelist trunk page.
36	4	Total number of freelist pages.
40	4	The schema cookie.
44	4	The schema format number. Supported schema formats are 1, 2, 3, and 4.
48	4	Default page cache size.
52	4	The page number of the largest root b-tree page when in auto-vacuum or incremental-vacuum modes, or zero otherwise.
56	4	The database text encoding. A bytes of 1 means UTF-8. A bytes of 2 means UTF-16le. A bytes of 3 means UTF-16be.
60	4	The “user version” as read and set by the user_version pragma.
64	4	True (non-zero) for incremental-vacuum mode. False (zero) otherwise.
68	4	The “Application ID” set by PRAGMA application_id.
72	20	Reserved for expansion. Must be zero.
92	4	The version-valid-for number.
96	4	SQLITE_VERSION_NUMBER

Implementations

impl SqliteHeader

pub fn magic_header_string(&self) -> &MagicHeaderString

pub fn page_size(&self) -> &PageSize

Trait Implementations

impl Debug for SqliteHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl TryFrom<&[u8; 100]> for SqliteHeader

type Error = Error

The type returned in the event of a conversion error.

fn try_from(bytes: &[u8; 100]) -> Result<Self, Self::Error>

Performs the conversion.