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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_GUID_H_
#define BASE_GUID_H_
#include <stdint.h>
#include <string>
#include "base/base_export.h"
#include "build/build_config.h"
namespace base {
// Generate a 128-bit random GUID of the form: "%08X-%04X-%04X-%04X-%012llX".
// If GUID generation fails an empty string is returned.
// The POSIX implementation uses pseudo random number generation to create
// the GUID. The Windows implementation uses system services.
std::string GenerateGUID();
#if defined(OS_POSIX)
// For unit testing purposes only. Do not use outside of tests.
std::string RandomDataToGUIDString(const uint64_t bytes[2]);
} // namespace base
#endif // BASE_GUID_H_