39 lines
950 B
C++
39 lines
950 B
C++
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// Copyright (c) 2012 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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#include "base/guid.h"
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#include <stdlib.h>
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#include <objbase.h>
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#include <windows.h>
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#include "base/basictypes.h"
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#include "base/logging.h"
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#include "base/strings/string_util.h"
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#include "base/strings/utf_string_conversions.h"
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namespace base {
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std::string GenerateGUID() {
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const int kGUIDSize = 39;
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GUID guid;
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HRESULT guid_result = CoCreateGuid(&guid);
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DCHECK(SUCCEEDED(guid_result));
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if (!SUCCEEDED(guid_result))
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return std::string();
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std::wstring guid_string;
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int result = StringFromGUID2(guid,
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WriteInto(&guid_string, kGUIDSize), kGUIDSize);
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DCHECK(result == kGUIDSize);
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if (result != kGUIDSize)
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return std::string();
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return WideToUTF8(guid_string.substr(1, guid_string.length() - 2));
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}
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} // namespace guid
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