Function c3p0_pool_sqlite::rusqlite::ffi::sqlite3_wal_hook

pub unsafe extern "C" fn sqlite3_wal_hook(
    arg1: *mut sqlite3, 
    arg2: Option<unsafe extern "C" fn(*mut c_void, *mut sqlite3, *const i8, i32) -> i32>, 
    arg3: *mut c_void
) -> *mut c_void