+//
+// Copyright 2017, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at:
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "android/os/parcel_uuid.h"
+
+using android::OK;
+using android::Parcel;
+using android::status_t;
+using bluetooth::Uuid;
+
+namespace android {
+namespace os {
+
+namespace {
+static uint64_t uuid_lsb(const Uuid& uuid) {
+ uint64_t lsb = 0;
+
+ auto uu = uuid.To128BitBE();
+ for (int i = 8; i <= 15; i++) {
+ lsb <<= 8;
+ lsb |= uu[i];
+ }
+
+ return lsb;
+}
+
+static uint64_t uuid_msb(const Uuid& uuid) {
+ uint64_t msb = 0;
+
+ auto uu = uuid.To128BitBE();
+ for (int i = 0; i <= 7; i++) {
+ msb <<= 8;
+ msb |= uu[i];
+ }
+
+ return msb;
+}
+} // namespace
+
+status_t ParcelUuid::writeToParcel(Parcel* parcel) const {
+ status_t status = parcel->writeInt64(uuid_msb(uuid));
+ if (status != OK) return status;
+
+ status = parcel->writeInt64(uuid_lsb(uuid));
+ return status;
+}
+
+status_t ParcelUuid::readFromParcel(const Parcel* parcel) {
+ int64_t uuid_msb, uuid_lsb;
+
+ status_t status = parcel->readInt64(&uuid_msb);
+ if (status != OK) return status;
+
+ status = parcel->readInt64(&uuid_lsb);
+ if (status != OK) return status;
+
+ std::array<uint8_t, Uuid::kNumBytes128> uu;
+ for (int i = 0; i < 8; i++) {
+ uu[7 - i] = (uuid_msb >> (8 * i)) & 0xFF;
+ uu[15 - i] = (uuid_lsb >> (8 * i)) & 0xFF;
+ }
+
+ uuid = Uuid::From128BitBE(uu);
+ return OK;
+}
+
+} // namespace os
+} // namespace android
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