mojo/spy/common.h

   1 // Copyright 2014 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 MOJO_SPY_COMMON_H_
   6 #define MOJO_SPY_COMMON_H_
   7
   8 #include <stdint.h>
   9
  10 namespace mojo {
  11
  12 #pragma pack(push, 1)
  13
  14 // Mojo message header structures. These are based off the Mojo spec.
  15
  16 enum {
  17   kMessageExpectsResponse = 1 << 0,
  18   kMessageIsResponse      = 1 << 1
  19 };
  20
  21 struct MojoCommonHeader {
  22   uint32_t num_bytes;
  23   uint32_t num_fields;
  24 };
  25
  26 struct MojoMessageHeader : public MojoCommonHeader {
  27   uint32_t name;
  28   uint32_t flags;
  29 };
  30
  31 struct MojoRequestHeader : public MojoMessageHeader {
  32   uint64_t request_id;
  33 };
  34
  35 struct MojoMessageData  {
  36   MojoRequestHeader header;
  37 };
  38
  39 #pragma pack(pop)
  40
  41 }  // namespace mojo
  42
  43 #endif  // MOJO_SPY_COMMON_H_