140 lines
3.1 KiB
C++
140 lines
3.1 KiB
C++
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/*
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* BLEValue.cpp
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*
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* Created on: Jul 17, 2017
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* Author: kolban
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*/
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#include "sdkconfig.h"
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#if defined(CONFIG_BT_ENABLED)
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#include "BLEValue.h"
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#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
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#include "esp32-hal-log.h"
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#define LOG_TAG ""
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#else
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#include "esp_log.h"
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static const char* LOG_TAG="BLEValue";
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#endif
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BLEValue::BLEValue() {
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m_accumulation = "";
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m_value = "";
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m_readOffset = 0;
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} // BLEValue
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/**
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* @brief Add a message part to the accumulation.
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* The accumulation is a growing set of data that is added to until a commit or cancel.
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* @param [in] part A message part being added.
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*/
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void BLEValue::addPart(std::string part) {
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ESP_LOGD(LOG_TAG, ">> addPart: length=%d", part.length());
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m_accumulation += part;
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} // addPart
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/**
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* @brief Add a message part to the accumulation.
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* The accumulation is a growing set of data that is added to until a commit or cancel.
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* @param [in] pData A message part being added.
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* @param [in] length The number of bytes being added.
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*/
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void BLEValue::addPart(uint8_t* pData, size_t length) {
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ESP_LOGD(LOG_TAG, ">> addPart: length=%d", length);
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m_accumulation += std::string((char*) pData, length);
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} // addPart
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/**
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* @brief Cancel the current accumulation.
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*/
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void BLEValue::cancel() {
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ESP_LOGD(LOG_TAG, ">> cancel");
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m_accumulation = "";
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m_readOffset = 0;
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} // cancel
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/**
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* @brief Commit the current accumulation.
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* When writing a value, we may find that we write it in "parts" meaning that the writes come in in pieces
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* of the overall message. After the last part has been received, we may perform a commit which means that
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* we now have the complete message and commit the change as a unit.
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*/
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void BLEValue::commit() {
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ESP_LOGD(LOG_TAG, ">> commit");
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// If there is nothing to commit, do nothing.
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if (m_accumulation.length() == 0) return;
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setValue(m_accumulation);
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m_accumulation = "";
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m_readOffset = 0;
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} // commit
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/**
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* @brief Get a pointer to the data.
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* @return A pointer to the data.
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*/
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uint8_t* BLEValue::getData() {
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return (uint8_t*) m_value.data();
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}
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/**
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* @brief Get the length of the data in bytes.
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* @return The length of the data in bytes.
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*/
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size_t BLEValue::getLength() {
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return m_value.length();
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} // getLength
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/**
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* @brief Get the read offset.
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* @return The read offset into the read.
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*/
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uint16_t BLEValue::getReadOffset() {
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return m_readOffset;
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} // getReadOffset
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/**
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* @brief Get the current value.
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*/
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std::string BLEValue::getValue() {
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return m_value;
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} // getValue
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/**
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* @brief Set the read offset
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* @param [in] readOffset The offset into the read.
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*/
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void BLEValue::setReadOffset(uint16_t readOffset) {
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m_readOffset = readOffset;
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} // setReadOffset
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/**
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* @brief Set the current value.
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*/
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void BLEValue::setValue(std::string value) {
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m_value = value;
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} // setValue
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/**
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* @brief Set the current value.
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* @param [in] pData The data for the current value.
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* @param [in] The length of the new current value.
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*/
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void BLEValue::setValue(uint8_t* pData, size_t length) {
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m_value = std::string((char*) pData, length);
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} // setValue
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#endif // CONFIG_BT_ENABLED
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