blob: ca5a1d5f7fac7d052724de3c0a1368cc5f1636fe [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/posix/global_descriptors.h"
#include "ipc/ipc_descriptors.h"
namespace content {
// Contents of the initial message sent from the zygote to the browser right
// after it starts.
static const char kZygoteBootMessage[] = "ZYGOTE_BOOT";
// Contents of the initial message sent from the zygote to the browser when it
// is ready to go.
static const char kZygoteHelloMessage[] = "ZYGOTE_OK";
// Message sent by zygote children to the browser so the browser can discover
// the sending child's process ID.
static const char kZygoteChildPingMessage[] = "CHILD_PING";
// Maximum allowable length for messages sent to the zygote.
const size_t kZygoteMaxMessageLength = 8192;
// File descriptors initialized by the Zygote Host
const int kZygoteSocketPairFd =
kPrimaryIPCChannel + base::GlobalDescriptors::kBaseDescriptor;
// These are the command codes used on the wire between the browser and the
// zygote.
enum {
// Fork off a new renderer.
kZygoteCommandFork = 0,
// Reap a renderer child.
kZygoteCommandReap = 1,
// Check what happened to a child process.
kZygoteCommandGetTerminationStatus = 2,
// Read a bitmask of kSandboxLinux*
kZygoteCommandGetSandboxStatus = 3,
// Not a real zygote command, but a subcommand used during the zygote fork
// protocol. Sends the child's PID as seen from the browser process.
kZygoteCommandForkRealPID = 4
} // namespace content