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/*
* Copyright 2021 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.
*/
#pragma once
#ifdef __cplusplus
#include <cstddef>
#include <cstdint>
#else
#include <stddef.h>
#include <stdint.h>
#endif // _cplusplus
/* Define the header of each buffer used in the Bluetooth stack.
*/
typedef struct {
uint16_t event;
uint16_t len;
uint16_t offset;
uint16_t layer_specific;
uint8_t data[];
} BT_HDR;
typedef struct {
uint16_t event;
uint16_t len;
uint16_t offset;
uint16_t layer_specific;
// Note: Removal of flexible array member with no specified size.
// This struct may be embedded in any position within other structs
// and will not trigger various flexible member compilation issues.
} BT_HDR_RIGID;
#ifdef __cplusplus
template <typename T>
T* ToPacketData(BT_HDR* bt_hdr, size_t offset = 0) {
return reinterpret_cast<T*>(bt_hdr->data + bt_hdr->offset + offset);
}
template <typename T>
const T* ToPacketData(const BT_HDR* bt_hdr, size_t offset = 0) {
return reinterpret_cast<const T*>(bt_hdr->data + bt_hdr->offset + offset);
}
#endif // __cplusplus
#define BT_HDR_SIZE (sizeof(BT_HDR))
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