content/common/gamepad_messages.h

   1 // Copyright (c) 2011 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 // Multiply-included message file, no include guard.
   6
   7 #include "base/memory/shared_memory.h"
   8 #include "ipc/ipc_message_macros.h"
   9 #include "ipc/ipc_param_traits.h"
  10 #include "ipc/ipc_platform_file.h"
  11
  12 #define IPC_MESSAGE_START GamepadMsgStart
  13
  14 // Messages sent from the renderer to the browser.
  15
  16 // Asks the browser process to start polling, and return a shared memory
  17 // handles that will hold the data from the hardware. See
  18 // gamepad_hardware_buffer.h for a description of how synchronization is
  19 // handled. The number of Starts should match the number of Stops.
  20 IPC_SYNC_MESSAGE_CONTROL0_1(GamepadHostMsg_StartPolling,
  21                             base::SharedMemoryHandle /* handle */)
  22
  23 IPC_SYNC_MESSAGE_CONTROL0_0(GamepadHostMsg_StopPolling)