components/nacl/loader/nacl_helper_linux.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_NACL_LOADER_NACL_HELPER_LINUX_H_
   6 #define COMPONENTS_NACL_LOADER_NACL_HELPER_LINUX_H_
   7
   8 namespace nacl {
   9
  10 // A mini-zygote specifically for Native Client. This file defines
  11 // constants used to implement communication between the nacl_helper
  12 // process and the Chrome zygote.
  13
  14 #define kNaClMaxIPCMessageLength 2048
  15
  16 // Used by Helper to tell Zygote it has started successfully.
  17 #define kNaClHelperStartupAck "NACLHELPER_OK"
  18
  19 enum NaClZygoteIPCCommand {
  20   kNaClForkRequest,
  21   kNaClGetTerminationStatusRequest,
  22 };
  23
  24 // The next set of constants define global Linux file descriptors.
  25 // For communications between NaCl loader and browser.
  26 // See also content/common/zygote_main_linux.cc and
  27 // http://code.google.com/p/chromium/wiki/LinuxZygote
  28
  29 // For communications between NaCl loader and zygote.
  30 #define kNaClZygoteDescriptor 3
  31
  32 } // namespace nacl
  33
  34 #endif  // COMPONENTS_NACL_LOADER_NACL_HELPER_LINUX_H_