Integrate service worker manager thread

This commit is contained in:
Rahul Sharma 2016-06-09 18:52:52 +05:30
parent e8fa02a07f
commit 1e6293ea1d
39 changed files with 764 additions and 582 deletions

View file

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! The service worker manager persists the descriptor of any registered service workers.
//! It also stores an active workers map, which holds descriptors of running service workers.
//! If an active service worker timeouts, then it removes the descriptor entry from its
//! active_workers map
use devtools_traits::{DevtoolsPageInfo, ScriptToDevtoolsControlMsg};
use dom::serviceworkerglobalscope::ServiceWorkerGlobalScope;
use dom::serviceworkerregistration::longest_prefix_match;
use ipc_channel::ipc::{self, IpcSender, IpcReceiver};
use script_traits::{ServiceWorkerMsg, ScopeThings, SWManagerMsg};
use std::collections::HashMap;
use std::sync::mpsc::channel;
use url::Url;
use util::thread::spawn_named;
pub struct ServiceWorkerManager {
// map of registered service worker descriptors
registered_workers: HashMap<Url, ScopeThings>,
// map of active service worker descriptors
active_workers: HashMap<Url, ScopeThings>,
// own sender to send messages here
own_sender: IpcSender<ServiceWorkerMsg>,
// receiver to receive messages from constellation
own_port: IpcReceiver<ServiceWorkerMsg>,
}
impl ServiceWorkerManager {
fn new(own_sender: IpcSender<ServiceWorkerMsg>,
from_constellation_receiver: IpcReceiver<ServiceWorkerMsg>) -> ServiceWorkerManager {
ServiceWorkerManager {
registered_workers: HashMap::new(),
active_workers: HashMap::new(),
own_sender: own_sender,
own_port: from_constellation_receiver
}
}
pub fn spawn_manager(from_swmanager_sender: IpcSender<SWManagerMsg>) {
let (own_sender, from_constellation_receiver) = ipc::channel().unwrap();
from_swmanager_sender.send(SWManagerMsg::OwnSender(own_sender.clone())).unwrap();
spawn_named("ServiceWorkerManager".to_owned(), move || {
ServiceWorkerManager::new(own_sender, from_constellation_receiver).start();
});
}
pub fn prepare_activation(&mut self, load_url: &Url) {
let mut scope_url = None;
for scope in self.registered_workers.keys() {
if longest_prefix_match(&scope, load_url) {
scope_url = Some(scope.clone());
break;
}
}
if let Some(ref scope_url) = scope_url {
if self.active_workers.contains_key(&scope_url) {
// do not run the same worker if already active.
warn!("Service worker for {:?} already active", scope_url);
return;
}
let scope_things = self.registered_workers.get(&scope_url);
if let Some(scope_things) = scope_things {
let (sender, receiver) = channel();
let (devtools_sender, devtools_receiver) = ipc::channel().unwrap();
if let Some(ref chan) = scope_things.devtools_chan {
let title = format!("ServiceWorker for {}", scope_things.script_url);
let page_info = DevtoolsPageInfo {
title: title,
url: scope_things.script_url.clone(),
};
let _ = chan.send(ScriptToDevtoolsControlMsg::NewGlobal((scope_things.pipeline_id,
Some(scope_things.worker_id)),
devtools_sender.clone(),
page_info));
};
ServiceWorkerGlobalScope::run_serviceworker_scope(scope_things.clone(),
sender,
receiver,
devtools_receiver,
self.own_sender.clone(),
scope_url.clone());
// store the worker in active_workers map
self.active_workers.insert(scope_url.clone(), scope_things.clone());
} else {
warn!("Unable to activate service worker");
}
}
}
fn start(&mut self) {
while let Ok(msg) = self.own_port.recv() {
match msg {
ServiceWorkerMsg::RegisterServiceWorker(scope_things, scope) => {
if self.registered_workers.contains_key(&scope) {
warn!("ScopeThings for {:?} already stored in SW-Manager", scope);
} else {
self.registered_workers.insert(scope, scope_things);
}
}
ServiceWorkerMsg::Timeout(scope) => {
if self.active_workers.contains_key(&scope) {
let _ = self.active_workers.remove(&scope);
} else {
warn!("ScopeThings for {:?} is not active", scope);
}
}
ServiceWorkerMsg::ActivateWorker(mediator) => {
self.prepare_activation(&mediator.load_url);
// TODO XXXcreativcoder this net_sender will need to be send to the appropriate service worker
// so that it may do the sending of custom responses.
// For now we just send a None from here itself
let _ = mediator.response_chan.send(None);
}
ServiceWorkerMsg::Exit => break
}
}
}
}