mojo/platform_handle/platform_handle_private_thunks.cc

   1 // Copyright 2015 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 #include "mojo/platform_handle/platform_handle_private_thunks.h"
   6
   7 #include <assert.h>
   8
   9 #if defined(WIN32)
  10 #define THUNK_EXPORT __declspec(dllexport)
  11 #else
  12 #define THUNK_EXPORT __attribute__((visibility("default")))
  13 #endif
  14
  15 extern "C" {
  16
  17 static MojoPlatformHandlePrivateThunks g_thunks = {0};
  18
  19 MojoResult MojoCreatePlatformHandleWrapper(MojoPlatformHandle platform_handle,
  20                                            MojoHandle* wrapper) {
  21   assert(g_thunks.CreatePlatformHandleWrapper);
  22   return g_thunks.CreatePlatformHandleWrapper(platform_handle, wrapper);
  23 }
  24
  25 MojoResult MojoExtractPlatformHandle(MojoHandle wrapper,
  26                                      MojoPlatformHandle* platform_handle) {
  27   assert(g_thunks.ExtractPlatformHandle);
  28   return g_thunks.ExtractPlatformHandle(wrapper, platform_handle);
  29 }
  30
  31 extern "C" THUNK_EXPORT size_t MojoSetPlatformHandlePrivateThunks(
  32     const MojoPlatformHandlePrivateThunks* thunks) {
  33   if (thunks->size >= sizeof(g_thunks))
  34     g_thunks = *thunks;
  35   return sizeof(g_thunks);
  36 }
  37
  38 }  // extern "C"