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