dom/ipc/PermissionMessageUtils.cpp
author Kartikaya Gupta <kgupta@mozilla.com>
Mon, 06 May 2019 22:14:40 +0000
changeset 531641 7748746bf2feda8edd0cabfdaff88b7faf059ad5
parent 521235 48241ea6a125e5ec01dbb323da92adabfb4ea480
child 534435 a50b68e0deb2cd736a83d3bd3d40ca18675f908e
permissions -rw-r--r--
Bug 1548568 - Cleanup to remove unused guid parameter in callback. r=botond Differential Revision: https://phabricator.services.mozilla.com/D29688

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

#include "mozilla/dom/PermissionMessageUtils.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "mozilla/ipc/PBackgroundSharedTypes.h"

namespace mozilla {
namespace ipc {

void IPDLParamTraits<nsIPrincipal>::Write(IPC::Message* aMsg, IProtocol* aActor,
                                          nsIPrincipal* aParam) {
  MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());

  Maybe<PrincipalInfo> info;
  if (aParam) {
    info.emplace();
    nsresult rv = PrincipalToPrincipalInfo(aParam, info.ptr());
    MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
  }

  WriteIPDLParam(aMsg, aActor, info);
}

bool IPDLParamTraits<nsIPrincipal>::Read(const IPC::Message* aMsg,
                                         PickleIterator* aIter,
                                         IProtocol* aActor,
                                         RefPtr<nsIPrincipal>* aResult) {
  Maybe<PrincipalInfo> info;
  if (!ReadIPDLParam(aMsg, aIter, aActor, &info)) {
    return false;
  }

  nsresult rv = NS_OK;
  *aResult = info ? PrincipalInfoToPrincipal(info.ref(), &rv) : nullptr;
  return NS_SUCCEEDED(rv);
}

}  // namespace ipc
}  // namespace mozilla