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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.
#include "net/quic/core/crypto/quic_random.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/singleton.h"
#include "crypto/random.h"
#include "net/quic/core/quic_bug_tracker.h"
namespace net {
namespace {
class DefaultRandom : public QuicRandom {
public:
static DefaultRandom* GetInstance();
// QuicRandom implementation
void RandBytes(void* data, size_t len) override;
uint64_t RandUint64() override;
void Reseed(const void* additional_entropy, size_t entropy_len) override;
private:
DefaultRandom() {}
~DefaultRandom() override {}
friend struct base::DefaultSingletonTraits<DefaultRandom>;
DISALLOW_COPY_AND_ASSIGN(DefaultRandom);
};
DefaultRandom* DefaultRandom::GetInstance() {
return base::Singleton<DefaultRandom>::get();
}
void DefaultRandom::RandBytes(void* data, size_t len) {
crypto::RandBytes(data, len);
}
uint64_t DefaultRandom::RandUint64() {
uint64_t value;
RandBytes(&value, sizeof(value));
return value;
}
void DefaultRandom::Reseed(const void* additional_entropy, size_t entropy_len) {
// No such function exists in crypto/random.h.
}
} // namespace
// static
QuicRandom* QuicRandom::GetInstance() {
return DefaultRandom::GetInstance();
}
} // namespace net
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