Function sqlite3_progress_handler

pub unsafe fn sqlite3_progress_handler(
    db: *mut sqlite3,
    nOps: c_int,
    callback: Option<unsafe extern "C" fn(cbArg: *mut c_void) -> c_int>,
    cbArg: *mut c_void,
)

Causes the callback function callback to be invoked periodically during long running calls to sqlite3_step() and sqlite3_prepare() and similar for database connection db. An example use for this interface is to keep a GUI updated during a large query.

See https://www.sqlite.org/c3ref/progress_handler.html