Repo created

TMessagesProj/jni/voip/webrtc/base/token.cc

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+// Copyright 2018 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 "base/token.h"
+
+#include <inttypes.h>
+
+#include "base/pickle.h"
+#include "base/rand_util.h"
+#include "base/strings/stringprintf.h"
+
+namespace base {
+
+// static
+Token Token::CreateRandom() {
+  Token token;
+
+  // Use base::RandBytes instead of crypto::RandBytes, because crypto calls the
+  // base version directly, and to prevent the dependency from base/ to crypto/.
+  base::RandBytes(&token, sizeof(token));
+  return token;
+}
+
+std::string Token::ToString() const {
+  return base::StringPrintf("%016" PRIX64 "%016" PRIX64, high_, low_);
+}
+
+void WriteTokenToPickle(Pickle* pickle, const Token& token) {
+  pickle->WriteUInt64(token.high());
+  pickle->WriteUInt64(token.low());
+}
+
+Optional<Token> ReadTokenFromPickle(PickleIterator* pickle_iterator) {
+  uint64_t high;
+  if (!pickle_iterator->ReadUInt64(&high))
+    return nullopt;
+
+  uint64_t low;
+  if (!pickle_iterator->ReadUInt64(&low))
+    return nullopt;
+
+  return Token(high, low);
+}
+
+}  // namespace base