| // 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. |
| |
| #ifndef CONTENT_COMMON_ZYGOTE_COMMANDS_LINUX_H_ |
| #define CONTENT_COMMON_ZYGOTE_COMMANDS_LINUX_H_ |
| |
| #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 |
| |
| #endif // CONTENT_COMMON_ZYGOTE_COMMANDS_LINUX_H_ |