blob: 077dd2b7f5fecbe97fbad7e2704bab733e300bfd [file] [log] [blame]
//
// Copyright 2016 Google, Inc.
//
// 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/bluetooth/uuid.h"
#include <binder/Parcel.h>
using android::Parcelable;
using android::Parcel;
using android::String16;
using android::status_t;
using android::OK;
namespace android {
namespace bluetooth {
status_t UUID::writeToParcel(Parcel* parcel) const {
// The scheme used by android.os.ParcelUuid is to wrote the most significant
// bits first as one 64-bit integer, followed by the least significant bits in
// a second 64-bit integer. This is the same as writing the raw-bytes in
// sequence, but we don't want to assume any host-endianness here. So follow
// the same scheme and use the same Parcel APIs.
::bluetooth::Uuid::UUID128Bit bytes = uuid.To128BitBE();
uint64_t most_sig_bits =
((((uint64_t)bytes[0]) << 56) | (((uint64_t)bytes[1]) << 48) |
(((uint64_t)bytes[2]) << 40) | (((uint64_t)bytes[3]) << 32) |
(((uint64_t)bytes[4]) << 24) | (((uint64_t)bytes[5]) << 16) |
(((uint64_t)bytes[6]) << 8) | bytes[7]);
uint64_t least_sig_bits =
((((uint64_t)bytes[8]) << 56) | (((uint64_t)bytes[9]) << 48) |
(((uint64_t)bytes[10]) << 40) | (((uint64_t)bytes[11]) << 32) |
(((uint64_t)bytes[12]) << 24) | (((uint64_t)bytes[13]) << 16) |
(((uint64_t)bytes[14]) << 8) | bytes[15]);
status_t status = parcel->writeUint64(most_sig_bits);
if (status != OK) return status;
status = parcel->writeUint64(least_sig_bits);
return status;
}
status_t UUID::readFromParcel(const Parcel* parcel) {
::bluetooth::Uuid::UUID128Bit bytes;
uint64_t most_sig_bits, least_sig_bits;
status_t status = parcel->readUint64(&most_sig_bits);
if (status != OK) return status;
status = parcel->readUint64(&least_sig_bits);
if (status != OK) return status;
bytes[0] = (most_sig_bits >> 56) & 0xFF;
bytes[1] = (most_sig_bits >> 48) & 0xFF;
bytes[2] = (most_sig_bits >> 40) & 0xFF;
bytes[3] = (most_sig_bits >> 32) & 0xFF;
bytes[4] = (most_sig_bits >> 24) & 0xFF;
bytes[5] = (most_sig_bits >> 16) & 0xFF;
bytes[6] = (most_sig_bits >> 8) & 0xFF;
bytes[7] = most_sig_bits & 0xFF;
bytes[8] = (least_sig_bits >> 56) & 0xFF;
bytes[9] = (least_sig_bits >> 48) & 0xFF;
bytes[10] = (least_sig_bits >> 40) & 0xFF;
bytes[11] = (least_sig_bits >> 32) & 0xFF;
bytes[12] = (least_sig_bits >> 24) & 0xFF;
bytes[13] = (least_sig_bits >> 16) & 0xFF;
bytes[14] = (least_sig_bits >> 8) & 0xFF;
bytes[15] = least_sig_bits & 0xFF;
uuid = ::bluetooth::Uuid::From128BitBE(bytes);
return status;
}
} // namespace bluetooth
} // namespace android