Struct capsules_extra::kv_store_permissions::KVStorePermissions

pub struct KVStorePermissions<'a, K: KV<'a>> { /* private fields */ }

Key-Value store with Tock-specific extensions for permissions and access control.

Implements KVPermissions on top of KV.

Implementations

impl<'a, K: KV<'a>> KVStorePermissions<'a, K>

pub fn new( kv: &'a K, header_value: &'static mut [u8; 9] ) -> KVStorePermissions<'a, K>

Trait Implementations

impl<'a, K: KV<'a>> KVClient for KVStorePermissions<'a, K>

fn get_complete( &self, result: Result<(), ErrorCode>, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8> )

This callback is called when the get operation completes.

fn set_complete( &self, result: Result<(), ErrorCode>, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8> )

This callback is called when the set operation completes.

fn add_complete( &self, result: Result<(), ErrorCode>, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8> )

This callback is called when the add operation completes.

fn update_complete( &self, result: Result<(), ErrorCode>, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8> )

This callback is called when the update operation completes.

fn delete_complete( &self, result: Result<(), ErrorCode>, key: SubSliceMut<'static, u8> )

This callback is called when the delete operation completes.

impl<'a, K: KV<'a>> KVPermissions<'a> for KVStorePermissions<'a, K>

fn set_client(&self, client: &'a dyn KVClient)

Configure the client for operation callbacks.

fn get( &self, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8>, permissions: StoragePermissions ) -> Result<(), (SubSliceMut<'static, u8>, SubSliceMut<'static, u8>, ErrorCode)>

Retrieve a value based on the given key.

fn set( &self, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8>, permissions: StoragePermissions ) -> Result<(), (SubSliceMut<'static, u8>, SubSliceMut<'static, u8>, ErrorCode)>

Store a value based on the given key. If the key does not exist it will be added. If the key already exists the value will be updated.

fn add( &self, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8>, permissions: StoragePermissions ) -> Result<(), (SubSliceMut<'static, u8>, SubSliceMut<'static, u8>, ErrorCode)>

Store a new value based on the given key. If the key does not exist it will be added. If the key already exists an error callback will be provided.

fn update( &self, key: SubSliceMut<'static, u8>, value: SubSliceMut<'static, u8>, permissions: StoragePermissions ) -> Result<(), (SubSliceMut<'static, u8>, SubSliceMut<'static, u8>, ErrorCode)>

Modify a value based on the given key. If the key does not exist it an error callback will be provided.

fn delete( &self, key: SubSliceMut<'static, u8>, permissions: StoragePermissions ) -> Result<(), (SubSliceMut<'static, u8>, ErrorCode)>

Delete a key-value object based on the given key.

fn header_size(&self) -> usize

Returns the length of the key-value store’s header in bytes.