mojo/embedder/platform_support.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_EMBEDDER_PLATFORM_SUPPORT_H_
   6 #define MOJO_EMBEDDER_PLATFORM_SUPPORT_H_
   7
   8 #include <stddef.h>
   9
  10 #include "base/macros.h"
  11 #include "mojo/embedder/scoped_platform_handle.h"
  12 #include "mojo/system/system_impl_export.h"
  13
  14 namespace mojo {
  15 namespace embedder {
  16
  17 class PlatformSharedBuffer;
  18
  19 // This class is provided by the embedder to implement (typically
  20 // platform-dependent) things needed by the Mojo system implementation.
  21 class MOJO_SYSTEM_IMPL_EXPORT PlatformSupport {
  22  public:
  23   virtual ~PlatformSupport() {}
  24
  25   virtual PlatformSharedBuffer* CreateSharedBuffer(size_t num_bytes) = 0;
  26   virtual PlatformSharedBuffer* CreateSharedBufferFromHandle(
  27       size_t num_bytes,
  28       ScopedPlatformHandle platform_handle) = 0;
  29
  30  protected:
  31   PlatformSupport() {}
  32
  33  private:
  34   DISALLOW_COPY_AND_ASSIGN(PlatformSupport);
  35 };
  36
  37 }  // namespace embedder
  38 }  // namespace mojo
  39
  40 #endif  // MOJO_EMBEDDER_PLATFORM_SUPPORT_H_