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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* 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/. */
package org.mozilla.gecko.process;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Bundle;
import android.os.IBinder;
import android.os.ParcelFileDescriptor;
import android.os.Process;
import android.os.RemoteException;
import android.util.Log;
import org.mozilla.gecko.GeckoAppShell;
import org.mozilla.gecko.GeckoThread;
import org.mozilla.gecko.GeckoThread.FileDescriptors;
import org.mozilla.gecko.GeckoThread.ParcelFileDescriptors;
import org.mozilla.gecko.IGeckoEditableChild;
import org.mozilla.gecko.annotation.WrapForJNI;
import org.mozilla.gecko.gfx.ICompositorSurfaceManager;
import org.mozilla.gecko.gfx.ISurfaceAllocator;
import org.mozilla.gecko.util.ThreadUtils;
public class GeckoServiceChildProcess extends Service {
private static final String LOGTAG = "ServiceChildProcess";
private static IProcessManager sProcessManager;
private static String sOwnerProcessId;
private final MemoryController mMemoryController = new MemoryController();
// Makes sure we don't reuse this process
private static boolean sCreateCalled;
@WrapForJNI(calledFrom = "gecko")
private static void getEditableParent(
final IGeckoEditableChild child, final long contentId, final long tabId) {
try {
sProcessManager.getEditableParent(child, contentId, tabId);
} catch (final RemoteException e) {
Log.e(LOGTAG, "Cannot get editable", e);
}
}
@Override
public void onCreate() {
super.onCreate();
Log.i(LOGTAG, "onCreate");
if (sCreateCalled) {
// We don't support reusing processes, and this could get us in a really weird state,
// so let's throw here.
throw new RuntimeException("Cannot reuse process.");
}
sCreateCalled = true;
GeckoAppShell.setApplicationContext(getApplicationContext());
GeckoThread.launch(); // Preload Gecko.
}
protected static class ChildProcessBinder extends IChildProcess.Stub {
@Override
public int getPid() {
return Process.myPid();
}
@Override
public int start(
final IProcessManager procMan,
final String mainProcessId,
final String[] args,
final Bundle extras,
final int flags,
final String userSerialNumber,
final String crashHandlerService,
final ParcelFileDescriptor prefsPfd,
final ParcelFileDescriptor prefMapPfd,
final ParcelFileDescriptor ipcPfd,
final ParcelFileDescriptor crashReporterPfd,
final ParcelFileDescriptor crashAnnotationPfd) {
final ParcelFileDescriptors pfds =
ParcelFileDescriptors.builder()
.prefs(prefsPfd)
.prefMap(prefMapPfd)
.ipc(ipcPfd)
.crashReporter(crashReporterPfd)
.crashAnnotation(crashAnnotationPfd)
.build();
synchronized (GeckoServiceChildProcess.class) {
if (sOwnerProcessId != null && !sOwnerProcessId.equals(mainProcessId)) {
Log.w(
LOGTAG,
"This process belongs to a different GeckoRuntime owner: "
+ sOwnerProcessId
+ " process: "
+ mainProcessId);
// We need to close the File Descriptors here otherwise we will leak them causing a
// shutdown hang.
pfds.close();
return IChildProcess.STARTED_BUSY;
}
if (sProcessManager != null) {
Log.e(LOGTAG, "Child process already started");
pfds.close();
return IChildProcess.STARTED_FAIL;
}
sProcessManager = procMan;
sOwnerProcessId = mainProcessId;
}
final FileDescriptors fds = pfds.detach();
ThreadUtils.runOnUiThread(
new Runnable() {
@Override
public void run() {
if (crashHandlerService != null) {
try {
@SuppressWarnings("unchecked")
final Class<? extends Service> crashHandler =
(Class<? extends Service>) Class.forName(crashHandlerService);
// Native crashes are reported through pipes, so we don't have to
// do anything special for that.
GeckoAppShell.setCrashHandlerService(crashHandler);
GeckoAppShell.ensureCrashHandling(crashHandler);
} catch (final ClassNotFoundException e) {
Log.w(LOGTAG, "Couldn't find crash handler service " + crashHandlerService);
}
}
final GeckoThread.InitInfo info =
GeckoThread.InitInfo.builder()
.args(args)
.extras(extras)
.flags(flags)
.userSerialNumber(userSerialNumber)
.fds(fds)
.build();
if (GeckoThread.init(info)) {
GeckoThread.launch();
}
}
});
return IChildProcess.STARTED_OK;
}
@Override
public void crash() {
GeckoThread.crash();
}
@Override
public ICompositorSurfaceManager getCompositorSurfaceManager() {
Log.e(
LOGTAG, "Invalid call to IChildProcess.getCompositorSurfaceManager for non-GPU process");
throw new AssertionError(
"Invalid call to IChildProcess.getCompositorSurfaceManager for non-GPU process.");
}
@Override
public ISurfaceAllocator getSurfaceAllocator(final int allocatorId) {
Log.e(LOGTAG, "Invalid call to IChildProcess.getSurfaceAllocator for non-GPU process");
throw new AssertionError(
"Invalid call to IChildProcess.getSurfaceAllocator for non-GPU process.");
}
}
protected Binder createBinder() {
return new ChildProcessBinder();
}
private final Binder mBinder = createBinder();
@Override
public void onDestroy() {
Log.i(LOGTAG, "Destroying GeckoServiceChildProcess");
System.exit(0);
}
@Override
public IBinder onBind(final Intent intent) {
// Calling stopSelf ensures that whenever the client unbinds the process dies immediately.
stopSelf();
return mBinder;
}
@Override
public void onTrimMemory(final int level) {
mMemoryController.onTrimMemory(level);
// This is currently a no-op in Service, but let's future-proof.
super.onTrimMemory(level);
}
@Override
public void onLowMemory() {
mMemoryController.onLowMemory();
super.onLowMemory();
}
/**
* Returns the surface allocator interface that should be used by this process to allocate
* Surfaces, for consumption in either the GPU process or parent process.
*/
public static ISurfaceAllocator getSurfaceAllocator() throws RemoteException {
return sProcessManager.getSurfaceAllocator();
}
}
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