Module utils

Expand description

Some tools for implementing VFS

Modules§

x_methods_shim: Some x methods simulated using JS

Macros§

bail: Return error code if expr is true.
check_option: Unpack Option.
check_result: Unpack Ok.

Structs§

FilePtr: Wrap the pFile pointer, which is often used in VFS implementation.
FragileComfirmed: A FragileComfirmed<T> wraps a non sendable T to be safely send to other threads.
MemLinearStore: Linear storage in memory, used for temporary DB
MemPageStore: Memory storage structure by page (block)
SQLiteVfsFile: The actual pFile type in Vfs.
VfsPtr: Wrap the pVfs pointer, which is often used in VFS implementation.

Enums§

VfsError: Possible errors when registering Vfs

Constants§

SQLITE3_HEADER: The header of the SQLite file is used to determine whether the imported file is legal.

Traits§

SQLiteIoMethods: Abstraction of SQLite vfs’s io methods
SQLiteVfs: Abstraction of SQLite vfs
StoreControl: Control the Store and make changes to files
VfsStore: Some basic capabilities of Store

Functions§

copy_to_slice: Copy Uint8Array to slice
copy_to_uint8_array: Copy slice and return new Uint8Array
copy_to_uint8_array_subarray: Copy slice to Unit8Array
copy_to_vec: Copy Uint8Array and return new Vec<u8>
get_random_name: get random name if zFileName is null and other cases
page_read: Generic function for reading by page (block)
register_vfs: Register vfs general method