Struct SQLiteVfsFile

#[repr(C)]
pub struct SQLiteVfsFile {
    pub io_methods: sqlite3_file,
    pub vfs: *mut sqlite3_vfs,
    pub flags: i32,
    pub name_ptr: *const u8,
    pub name_length: usize,
}

The actual pFile type in Vfs.

szOsFile must be set to the size of SQLiteVfsFile.

Fields

io_methods: sqlite3_file

The first field must be of type sqlite_file. In C layout, the pointer to SQLiteVfsFile is the pointer to io_methods.

vfs: *mut sqlite3_vfs

The vfs where the file is located, usually used to manage files.

flags: i32

Flags used to open the database.

name_ptr: *const u8

The pointer to the file name. If it is a leaked static pointer, you need to drop it manually when xClose it.

name_length: usize

Length of the file name, on wasm32 platform, usize is u32.

Implementations

impl SQLiteVfsFile

pub unsafe fn from_file(file: *mut sqlite3_file) -> &'static SQLiteVfsFile

Convert a sqlite3_file pointer to a SQLiteVfsFile pointer.

Safety

You must ensure that the pointer passed in is SQLiteVfsFile

pub unsafe fn name(&self) -> &'static mut str

Get the file name.

Safety

When xClose, you can free the memory by drop(Box::from_raw(ptr));.

Do not use again after free.

pub fn sqlite3_file(&'static self) -> *mut sqlite3_file

Convert a &'static SQLiteVfsFile pointer to *mut sqlite3_file pointer.