openethereum/parity/hypervisor/mod.rs
2016-04-14 18:22:31 +03:00

79 lines
2.1 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/>.
//! Parity interprocess hypervisor module
pub mod service;
pub const HYPERVISOR_IPC_URL: &'static str = "ipc:///tmp/parity-internal-hyper-status.ipc";
use nanoipc;
use std::sync::{Arc,RwLock};
use hypervisor::service::*;
use ipc::IpcInterface;
pub struct Hypervisor {
service: Arc<HypervisorService>,
ipc_worker: RwLock<nanoipc::Worker<HypervisorService>>,
}
impl Hypervisor {
/// initializes the Hypervisor service with the open ipc socket for incoming clients
pub fn init() -> Arc<Hypervisor>{
Hypervisor::with_url(HYPERVISOR_IPC_URL)
}
fn with_url(addr: &str) -> Arc<Hypervisor>{
let service = HypervisorService::new();
let mut worker = nanoipc::Worker::new(&service);
worker.add_reqrep(addr);
Arc::new(Hypervisor{
service: service,
ipc_worker: RwLock::new(worker),
})
}
pub fn modules_ready(&self) -> bool {
self.service.unchecked_count() == 0
}
/// Waits for every required module to check in
pub fn wait_for_startup(&self) {
let mut worker = self.ipc_worker.write().unwrap();
while !self.modules_ready() {
worker.poll()
}
}
}
mod tests {
use super::*;
#[test]
fn can_init() {
let hypervisor = Hypervisor::with_url("ipc:///tmp/test-parity-hypervisor-10");
assert_eq!(false, hypervisor.modules_ready());
}
#[test]
fn can_wait_for_startup() {
let hypervisor = Hypervisor::with_url("ipc:///tmp/test-parity-hypervisor-10");
hypervisor.wait_for_startup();
assert_eq!(false, hypervisor.modules_ready());
}
}