openethereum/ipc/tests/nested.rs.in
2016-07-14 12:29:08 +02:00

62 lines
1.7 KiB
Rust

// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::sync::RwLock;
use std::ops::*;
use ipc::IpcConfig;
use ipc::BinaryConvertable;
use std::mem;
use ipc::binary::BinaryConvertError;
use std::collections::VecDeque;
pub struct DB<L: Sized> {
pub writes: RwLock<u64>,
pub reads: RwLock<u64>,
pub holdings: L,
}
pub trait DBWriter {
fn write(&self, data: Vec<u8>) -> Result<(), DBError>;
fn write_slice(&self, data: &[u8]) -> Result<(), DBError>;
}
impl IpcConfig<DBWriter> for ::std::sync::Arc<DBWriter> {}
#[derive(Binary)]
pub enum DBError { Write, Read }
#[derive(Ipc)]
impl<L: Sized> DBWriter for DB<L> {
fn write(&self, data: Vec<u8>) -> Result<(), DBError> {
let mut writes = self.writes.write().unwrap();
*writes = *writes + data.len() as u64;
Ok(())
}
fn write_slice(&self, data: &[u8]) -> Result<(), DBError> {
let mut writes = self.writes.write().unwrap();
*writes = *writes + data.len() as u64;
Ok(())
}
}
#[derive(Ipc)]
trait DBNotify {
fn notify(&self, a: u64, b: u64) -> bool;
}
impl IpcConfig<DBNotify> for ::std::sync::Arc<DBNotify> { }