mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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332 lines
8.6 KiB
C++
332 lines
8.6 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Firefox.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation <http://www.mozilla.org>.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "mozilla/jetpack/JetpackParent.h"
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#include "mozilla/jetpack/Handle.h"
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#include "base/process_util.h"
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#include "nsIURI.h"
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#include "nsNetUtil.h"
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#include "nsIVariant.h"
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#include "nsIXPConnect.h"
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#include "nsIJSContextStack.h"
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#ifdef MOZ_CRASHREPORTER
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#include "nsExceptionHandler.h"
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#endif
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namespace mozilla {
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namespace jetpack {
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JetpackParent::JetpackParent(JSContext* cx)
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: mSubprocess(new JetpackProcessParent())
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, mContext(cx)
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, mTaskFactory(this)
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{
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mSubprocess->Launch();
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Open(mSubprocess->GetChannel(),
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mSubprocess->GetChildProcessHandle());
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}
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JetpackParent::~JetpackParent()
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{
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if (mSubprocess)
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Destroy();
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if (OtherProcess())
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base::CloseProcessHandle(OtherProcess());
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}
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NS_IMPL_ISUPPORTS1(JetpackParent, nsIJetpack)
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NS_IMETHODIMP
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JetpackParent::SendMessage(const nsAString& aMessageName)
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{
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nsresult rv;
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nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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nsAXPCNativeCallContext* ncc = NULL;
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rv = xpc->GetCurrentNativeCallContext(&ncc);
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NS_ENSURE_SUCCESS(rv, rv);
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JSContext* cx;
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rv = ncc->GetJSContext(&cx);
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NS_ENSURE_SUCCESS(rv, rv);
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PRUint32 argc;
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rv = ncc->GetArgc(&argc);
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NS_ENSURE_SUCCESS(rv, rv);
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jsval* argv;
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rv = ncc->GetArgvPtr(&argv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsTArray<Variant> data;
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NS_ENSURE_TRUE(data.SetCapacity(argc), NS_ERROR_OUT_OF_MEMORY);
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JSAutoRequest request(cx);
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JSAutoEnterCompartment ac;
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if (!ac.enter(cx, JS_GetGlobalObject(cx)))
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return false;
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for (PRUint32 i = 1; i < argc; ++i)
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if (!jsval_to_Variant(cx, argv[i], data.AppendElement()))
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return NS_ERROR_INVALID_ARG;
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InfallibleTArray<Variant> dataForSend;
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dataForSend.SwapElements(data);
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if (!SendSendMessage(nsString(aMessageName), dataForSend))
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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NS_IMETHODIMP
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JetpackParent::RegisterReceiver(const nsAString& aMessageName,
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const jsval &aReceiver)
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{
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return JetpackActorCommon::RegisterReceiver(mContext,
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nsString(aMessageName),
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aReceiver);
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}
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NS_IMETHODIMP
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JetpackParent::UnregisterReceiver(const nsAString& aMessageName,
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const jsval &aReceiver)
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{
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JetpackActorCommon::UnregisterReceiver(nsString(aMessageName),
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aReceiver);
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return NS_OK;
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}
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NS_IMETHODIMP
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JetpackParent::UnregisterReceivers(const nsAString& aMessageName)
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{
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JetpackActorCommon::UnregisterReceivers(nsString(aMessageName));
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return NS_OK;
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}
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NS_IMETHODIMP
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JetpackParent::EvalScript(const nsAString& aScript)
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{
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if (!SendEvalScript(nsString(aScript)))
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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class AutoCXPusher
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{
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public:
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AutoCXPusher(JSContext* cx)
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: mCXStack(do_GetService("@mozilla.org/js/xpc/ContextStack;1"))
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{
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NS_ASSERTION(mCXStack, "No JS context stack?");
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if (mCXStack)
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mCXStack->Push(cx);
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}
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~AutoCXPusher()
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{
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if (mCXStack)
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mCXStack->Pop(NULL);
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}
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private:
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nsCOMPtr<nsIJSContextStack> mCXStack;
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};
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// We have to delete the JetpackProcessParent on the I/O thread after event
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// loop iteration in which JetpackParent::ActorDestroy runs is finished.
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static void
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DelayedDestroyProcess(JetpackProcessParent* o)
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{
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XRE_GetIOMessageLoop()
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->PostTask(FROM_HERE, new DeleteTask<JetpackProcessParent>(o));
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}
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void
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JetpackParent::ActorDestroy(ActorDestroyReason why)
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{
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switch (why) {
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case AbnormalShutdown: {
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nsAutoString dumpID;
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#ifdef MOZ_CRASHREPORTER
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nsCOMPtr<nsILocalFile> crashDump;
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TakeMinidump(getter_AddRefs(crashDump)) &&
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CrashReporter::GetIDFromMinidump(crashDump, dumpID);
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#endif
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MessageLoop::current()->
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PostTask(FROM_HERE,
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mTaskFactory.NewRunnableMethod(
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&JetpackParent::DispatchFailureMessage,
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dumpID));
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break;
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}
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case NormalShutdown:
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break;
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default:
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NS_ERROR("Unexpected actordestroy reason for toplevel actor.");
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}
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MessageLoop::current()->
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PostTask(FROM_HERE, NewRunnableFunction(DelayedDestroyProcess, mSubprocess));
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mSubprocess = NULL;
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}
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bool
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JetpackParent::RecvSendMessage(const nsString& messageName,
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const InfallibleTArray<Variant>& data)
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{
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AutoCXPusher cxp(mContext);
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JSAutoRequest request(mContext);
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JSAutoEnterCompartment ac;
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if (!ac.enter(mContext, JS_GetGlobalObject(mContext)))
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return false;
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return JetpackActorCommon::RecvMessage(mContext, messageName, data, NULL);
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}
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bool
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JetpackParent::AnswerCallMessage(const nsString& messageName,
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const InfallibleTArray<Variant>& data,
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InfallibleTArray<Variant>* results)
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{
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AutoCXPusher cxp(mContext);
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JSAutoRequest request(mContext);
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JSAutoEnterCompartment ac;
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if (!ac.enter(mContext, JS_GetGlobalObject(mContext)))
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return false;
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return JetpackActorCommon::RecvMessage(mContext, messageName, data, results);
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}
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NS_IMETHODIMP
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JetpackParent::CreateHandle(nsIVariant** aResult)
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{
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HandleParent* handle =
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static_cast<HandleParent*>(SendPHandleConstructor());
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NS_ENSURE_TRUE(handle, NS_ERROR_OUT_OF_MEMORY);
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nsresult rv;
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nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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JSAutoRequest request(mContext);
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JSAutoEnterCompartment ac;
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if (!ac.enter(mContext, JS_GetGlobalObject(mContext)))
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return false;
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JSObject* hobj = handle->ToJSObject(mContext);
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if (!hobj)
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return NS_ERROR_FAILURE;
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return xpc->JSToVariant(mContext, OBJECT_TO_JSVAL(hobj), aResult);
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}
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NS_IMETHODIMP
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JetpackParent::Destroy()
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{
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if (mSubprocess)
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Close();
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NS_ASSERTION(!mSubprocess, "ActorDestroy should have been called.");
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ClearReceivers();
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return NS_OK;
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}
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PHandleParent*
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JetpackParent::AllocPHandle()
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{
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return new HandleParent();
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}
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bool
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JetpackParent::DeallocPHandle(PHandleParent* actor)
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{
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delete actor;
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return true;
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}
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void
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JetpackParent::OnChannelConnected(int32 pid)
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{
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ProcessHandle handle;
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if (!base::OpenPrivilegedProcessHandle(pid, &handle))
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NS_RUNTIMEABORT("can't open handle to child process");
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SetOtherProcess(handle);
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}
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void
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JetpackParent::DispatchFailureMessage(const nsString& aDumpID)
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{
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#ifdef MOZ_CRASHREPORTER
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CrashReporter::AnnotationTable notes;
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notes.Init();
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notes.Put(NS_LITERAL_CSTRING("ProcessType"), NS_LITERAL_CSTRING("jetpack"));
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// TODO: Additional per-process annotations.
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CrashReporter::AppendExtraData(aDumpID, notes);
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#endif
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InfallibleTArray<KeyValue> keyvalues;
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if (!aDumpID.IsEmpty()) {
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KeyValue kv(NS_LITERAL_STRING("dumpID"), PrimVariant(aDumpID));
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keyvalues.AppendElement(kv);
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}
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CompVariant object(keyvalues);
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InfallibleTArray<Variant> arguments;
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arguments.AppendElement(object);
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RecvSendMessage(NS_LITERAL_STRING("core:process-error"), arguments);
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}
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} // namespace jetpack
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} // namespace mozilla
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