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