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esp-nimble-cpp/src/NimBLEUtils.h
2024-12-12 20:41:04 -07:00

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C++

/*
* Copyright 2020-2024 Ryan Powell <ryan@nable-embedded.io> and
* esp-nimble-cpp, NimBLE-Arduino contributors.
*
* 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.
*/
#ifndef NIMBLE_CPP_UTILS_H_
#define NIMBLE_CPP_UTILS_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
# include <string>
class NimBLEAddress;
/**
* @brief A structure to hold data for a task that is waiting for a response.
* @details This structure is used in conjunction with NimBLEUtils::taskWait() and NimBLEUtils::taskRelease().
* All items are optional, the m_pHandle will be set in taskWait().
*/
struct NimBLETaskData {
NimBLETaskData(void* pInstance = nullptr, int flags = 0, void* buf = nullptr);
~NimBLETaskData();
void* m_pInstance{nullptr};
mutable int m_flags{0};
void* m_pBuf{nullptr};
private:
mutable void* m_pHandle{nullptr}; // semaphore or task handle
friend class NimBLEUtils;
};
/**
* @brief A BLE Utility class with methods for debugging and general purpose use.
*/
class NimBLEUtils {
public:
static const char* gapEventToString(uint8_t eventType);
static std::string dataToHexString(const uint8_t* source, uint8_t length);
static const char* advTypeToString(uint8_t advType);
static const char* returnCodeToString(int rc);
static NimBLEAddress generateAddr(bool nrpa);
static bool taskWait(const NimBLETaskData& taskData, uint32_t timeout);
static void taskRelease(const NimBLETaskData& taskData, int rc = 0);
};
#endif // CONFIG_BT_ENABLED
#endif // NIMBLE_CPP_UTILS_H_