| // Copyright 2020, The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| //! This module holds global state of Keystore such as the thread local |
| //! database connections and connections to services that Keystore needs |
| //! to talk to. |
| |
| use crate::database::KeystoreDB; |
| use std::cell::RefCell; |
| |
| thread_local! { |
| /// Database connections are not thread safe, but connecting to the |
| /// same database multiple times is safe as long as each connection is |
| /// used by only one thread. So we store one database connection per |
| /// thread in this thread local key. |
| pub static DB: RefCell<KeystoreDB> = |
| RefCell::new(KeystoreDB::new().expect("Failed to open database.")); |
| } |