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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef MOJO_EDK_EMBEDDER_PLATFORM_SUPPORT_H_
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#define MOJO_EDK_EMBEDDER_PLATFORM_SUPPORT_H_
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#include <stddef.h>
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#include "mojo/edk/platform/scoped_platform_handle.h"
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#include "mojo/edk/util/ref_ptr.h"
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#include "mojo/public/cpp/system/macros.h"
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namespace mojo {
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namespace platform {
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class PlatformSharedBuffer;
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}
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namespace embedder {
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// This class is provided by the embedder to implement (typically
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// platform-dependent) things needed by the Mojo system implementation.
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// Implementations must be thread-safe.
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class PlatformSupport {
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public:
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virtual ~PlatformSupport() {}
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// Gets cryptographically-secure (pseudo)random bytes.
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virtual void GetCryptoRandomBytes(void* bytes, size_t num_bytes) = 0;
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virtual util::RefPtr<platform::PlatformSharedBuffer> CreateSharedBuffer(
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size_t num_bytes) = 0;
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virtual util::RefPtr<platform::PlatformSharedBuffer>
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CreateSharedBufferFromHandle(
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size_t num_bytes,
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platform::ScopedPlatformHandle platform_handle) = 0;
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protected:
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PlatformSupport() {}
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private:
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MOJO_DISALLOW_COPY_AND_ASSIGN(PlatformSupport);
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};
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} // namespace embedder
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} // namespace mojo
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#endif // MOJO_EDK_EMBEDDER_PLATFORM_SUPPORT_H_
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