tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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BroadcastChannelParent.cpp (1881B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "BroadcastChannelParent.h"
      8 
      9 #include "BroadcastChannelService.h"
     10 #include "mozilla/dom/File.h"
     11 #include "mozilla/dom/IPCBlobUtils.h"
     12 #include "mozilla/ipc/BackgroundParent.h"
     13 #include "mozilla/ipc/IPCStreamUtils.h"
     14 
     15 namespace mozilla {
     16 
     17 using namespace ipc;
     18 
     19 namespace dom {
     20 
     21 BroadcastChannelParent::BroadcastChannelParent(
     22    const nsAString& aOriginChannelKey)
     23    : mService(BroadcastChannelService::GetOrCreate()),
     24      mOriginChannelKey(aOriginChannelKey) {
     25  AssertIsOnBackgroundThread();
     26  mService->RegisterActor(this, mOriginChannelKey);
     27 }
     28 
     29 BroadcastChannelParent::~BroadcastChannelParent() {
     30  AssertIsOnBackgroundThread();
     31 }
     32 
     33 mozilla::ipc::IPCResult BroadcastChannelParent::RecvPostMessage(
     34    const MessageData& aData) {
     35  AssertIsOnBackgroundThread();
     36 
     37  if (NS_WARN_IF(!mService)) {
     38    return IPC_FAIL_NO_REASON(this);
     39  }
     40 
     41  mService->PostMessage(this, aData, mOriginChannelKey);
     42  return IPC_OK();
     43 }
     44 
     45 mozilla::ipc::IPCResult BroadcastChannelParent::RecvClose() {
     46  AssertIsOnBackgroundThread();
     47 
     48  if (NS_WARN_IF(!mService)) {
     49    return IPC_FAIL_NO_REASON(this);
     50  }
     51 
     52  mService->UnregisterActor(this, mOriginChannelKey);
     53  mService = nullptr;
     54 
     55  (void)Send__delete__(this);
     56 
     57  return IPC_OK();
     58 }
     59 
     60 void BroadcastChannelParent::ActorDestroy(ActorDestroyReason aWhy) {
     61  AssertIsOnBackgroundThread();
     62 
     63  if (mService) {
     64    // This object is about to be released and with it, also mService will be
     65    // released too.
     66    mService->UnregisterActor(this, mOriginChannelKey);
     67  }
     68 }
     69 
     70 }  // namespace dom
     71 }  // namespace mozilla