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Prevents the buffer size from changing while the UART is active. #10181

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Prevents the buffer size from changing while the UART is active. #10181

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rowingdude
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This change returns the buffer size rather than 0, the goal is to keep the buffer from changing its size while we're using the UART functionality.

Description of Change

Please describe your proposed Pull Request and it's impact.

Tests scenarios

Please describe on what Hardware and Software combinations you have tested this Pull Request and how.

(eg. I have tested my Pull Request on Arduino-esp32 core v2.0.2 with ESP32 and ESP32-S2 Board with this scenario)

Related links

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Warnings
⚠️

Some issues found for the commit messages in this PR:

  • the commit message "Prevents the buffer size from changing while the UART is active.":
    • summary should not end with a period (full stop)
    • summary looks empty
    • type/action looks empty

Please fix these commit messages - here are some basic tips:

  • follow Conventional Commits style
  • correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue
  • allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test
  • sufficiently descriptive message summary should be between 20 to 72 characters and start with upper case letter
  • avoid Jira references in commit messages (unavailable/irrelevant for our customers)

TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).
⚠️

The source branch "Rowingdude-uart_buffer_safety" incorrect format:

  • contains uppercase letters. This can cause troubles on case-insensitive file systems (macOS).
    Please rename your branch.

👋 Hello rowingdude, we appreciate your contribution to this project!

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Generated by 🚫 dangerJS against 0fc9a55

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Test Results

 56 files   56 suites   5m 2s ⏱️
 21 tests  20 ✅ 0 💤 1 ❌
135 runs  129 ✅ 0 💤 6 ❌

For more details on these failures, see this check.

Results for commit 0fc9a55.

@rowingdude
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This is just a quality of code improvement.

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Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

MemoryFLASH [bytes]FLASH [%]RAM [bytes]RAM [%]
TargetDECINCDECINCDECINCDECINC
ESP32S3💚 -400.000.00000.000.00
ESP32S2000.000.00000.000.00
ESP32C3000.000.00000.000.00
ESP32C6000.000.00000.000.00
ESP32H2000.000.00000.000.00
ESP32000.000.00000.000.00
Click to expand the detailed deltas report [usage change in BYTES]
TargetESP32S3ESP32S2ESP32C3ESP32C6ESP32H2ESP32
ExampleFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAM
ArduinoOTA/examples/BasicOTA00000000--00
AsyncUDP/examples/AsyncUDPClient00000000--00
AsyncUDP/examples/AsyncUDPMulticastServer00000000--00
AsyncUDP/examples/AsyncUDPServer00000000--00
BLE/examples/BLE5_extended_scan00--000000--
BLE/examples/BLE5_multi_advertising00--000000--
BLE/examples/BLE5_periodic_advertising00--000000--
BLE/examples/BLE5_periodic_sync00--000000--
BLE/examples/Beacon_Scanner00--00000000
BLE/examples/Client00--00000000
BLE/examples/EddystoneTLM_Beacon00--0000--00
BLE/examples/EddystoneURL_Beacon00--0000--00
BLE/examples/Notify00--00000000
BLE/examples/Scan00--00000000
BLE/examples/Server00--00000000
BLE/examples/Server_multiconnect00--00000000
BLE/examples/UART00--00000000
BLE/examples/Write00--00000000
BLE/examples/iBeacon00--00000000
DNSServer/examples/CaptivePortal00000000--00
EEPROM/examples/eeprom_class000000000000
EEPROM/examples/eeprom_extra000000000000
EEPROM/examples/eeprom_write000000000000
ESP32/examples/AnalogOut/LEDCFade000000000000
ESP32/examples/AnalogOut/LEDCSingleChannel000000000000
ESP32/examples/AnalogOut/LEDCSoftwareFade000000000000
ESP32/examples/AnalogOut/SigmaDelta000000000000
ESP32/examples/AnalogOut/ledcFrequency000000000000
ESP32/examples/AnalogOut/ledcWrite_RGB000000000000
ESP32/examples/AnalogRead000000000000
ESP32/examples/AnalogReadContinuous000000000000
ESP32/examples/ArduinoStackSize000000000000
ESP32/examples/CI/CIBoardsTest000000000000
ESP32/examples/Camera/CameraWebServer0000------00
ESP32/examples/ChipID/GetChipID000000000000
ESP32/examples/DeepSleep/ExternalWakeUp0000------00
ESP32/examples/DeepSleep/TimerWakeUp00000000--00
ESP32/examples/DeepSleep/TouchWakeUp0000------00
ESP32/examples/FreeRTOS/BasicMultiThreading000000000000
ESP32/examples/FreeRTOS/Mutex000000000000
ESP32/examples/FreeRTOS/Queue000000000000
ESP32/examples/FreeRTOS/Semaphore000000000000
ESP32/examples/GPIO/BlinkRGB000000000000
ESP32/examples/GPIO/FunctionalInterrupt000000000000
ESP32/examples/GPIO/FunctionalInterruptStruct000000000000
ESP32/examples/GPIO/GPIOInterrupt000000000000
ESP32/examples/HWCDC_Events00--000000--
ESP32/examples/MacAddress/GetMacAddress000000000000
ESP32/examples/RMT/Legacy_RMT_Driver_Compatible000000000000
ESP32/examples/RMT/RMTCallback000000000000
ESP32/examples/RMT/RMTLoopback000000000000
ESP32/examples/RMT/RMTReadXJT000000000000
ESP32/examples/RMT/RMTWriteNeoPixel000000000000
ESP32/examples/RMT/RMT_CPUFreq_Test000000000000
ESP32/examples/RMT/RMT_EndOfTransmissionState000000000000
ESP32/examples/RMT/RMT_LED_Blink000000000000
ESP32/examples/ResetReason/ResetReason000000000000
ESP32/examples/ResetReason/ResetReason2000000000000
ESP32/examples/Serial/BaudRateDetect_Demo000000000000
ESP32/examples/Serial/OnReceiveError_BREAK_Demo💚 -400000000000
ESP32/examples/Serial/OnReceive_Demo💚 -400000000000
ESP32/examples/Serial/RS485_Echo_Demo000000000000
ESP32/examples/Serial/RxFIFOFull_Demo000000000000
ESP32/examples/Serial/RxTimeout_Demo000000000000
ESP32/examples/Serial/Serial_All_CPU_Freqs000000000000
ESP32/examples/Serial/Serial_STD_Func_OnReceive💚 -400000000000
ESP32/examples/Serial/onReceiveExample💚 -400000000000
ESP32/examples/TWAI/TWAIreceive000000000000
ESP32/examples/TWAI/TWAItransmit000000000000
ESP32/examples/Template/ExampleTemplate000000000000
ESP32/examples/Time/SimpleTime00000000--00
ESP32/examples/Timer/RepeatTimer000000000000
ESP32/examples/Timer/WatchdogTimer000000000000
ESP32/examples/Touch/TouchButtonV20000--------
ESP32/examples/Touch/TouchInterrupt0000------00
ESP32/examples/Touch/TouchRead0000------00
ESP32/examples/Utilities/HEXBuilder000000000000
ESP32/examples/Utilities/MD5Builder000000000000
ESP32/examples/Utilities/SHA1Builder000000000000
ESP_I2S/examples/ES8388_loopback000000000000
ESP_I2S/examples/Record_to_WAV00--------00
ESP_I2S/examples/Simple_tone000000000000
ESP_NOW/examples/ESP_NOW_Broadcast_Master00000000--00
ESP_NOW/examples/ESP_NOW_Broadcast_Slave00000000--00
ESP_NOW/examples/ESP_NOW_Network00000000--00
ESP_NOW/examples/ESP_NOW_Serial00000000--00
ESP_SR/examples/Basic00----------
ESPmDNS/examples/mDNS-SD_Extended00000000--00
ESPmDNS/examples/mDNS_Web_Server00000000--00
Ethernet/examples/ETH_W5500_Arduino_SPI000000000000
Ethernet/examples/ETH_W5500_IDF_SPI000000000000
Ethernet/examples/ETH_WIFI_BRIDGE00000000--00
FFat/examples/FFat_Test000000000000
FFat/examples/FFat_time00000000--00
HTTPClient/examples/Authorization00000000--00
HTTPClient/examples/BasicHttpClient00000000--00
HTTPClient/examples/BasicHttpsClient00000000--00
HTTPClient/examples/HTTPClientEnterprise00000000--00
HTTPClient/examples/ReuseConnection00000000--00
HTTPClient/examples/StreamHttpClient00000000--00
HTTPUpdate/examples/httpUpdate00000000--00
HTTPUpdate/examples/httpUpdateSPIFFS00000000--00
HTTPUpdate/examples/httpUpdateSecure00000000--00
HTTPUpdateServer/examples/WebUpdater00000000--00
Insights/examples/DiagnosticsSmokeTest000000----00
Insights/examples/MinimalDiagnostics000000----00
LittleFS/examples/LITTLEFS_test000000000000
LittleFS/examples/LITTLEFS_time00000000--00
NetBIOS/examples/ESP_NBNST00000000--00
NetworkClientSecure/examples/WiFiClientInsecure00000000--00
NetworkClientSecure/examples/WiFiClientPSK00000000--00
NetworkClientSecure/examples/WiFiClientSecure00000000--00
NetworkClientSecure/examples/WiFiClientSecureEnterprise00000000--00
NetworkClientSecure/examples/WiFiClientSecureProtocolUpgrade00000000--00
NetworkClientSecure/examples/WiFiClientShowPeerCredentials00000000--00
NetworkClientSecure/examples/WiFiClientTrustOnFirstUse00000000--00
PPP/examples/PPP_Basic000000000000
PPP/examples/PPP_WIFI_BRIDGE00000000--00
Preferences/examples/Prefs2Struct000000000000
Preferences/examples/StartCounter000000000000
RainMaker/examples/RMakerCustom00000000--00
RainMaker/examples/RMakerCustomAirCooler00000000--00
RainMaker/examples/RMakerSonoffDualR300000000--00
RainMaker/examples/RMakerSwitch00000000--00
SD/examples/SD_Test000000000000
SD/examples/SD_time00000000--00
SD_MMC/examples/SD2USBMSC00----------
SD_MMC/examples/SDMMC_Test00--------00
SD_MMC/examples/SDMMC_time00--------00
SPI/examples/SPI_Multiple_Buses0000------00
SPIFFS/examples/SPIFFS_Test000000000000
SPIFFS/examples/SPIFFS_time00000000--00
SimpleBLE/examples/SimpleBleDevice00----000000
TFLiteMicro/examples/hello_world000000000000
Ticker/examples/Blinker000000000000
Ticker/examples/TickerBasic000000000000
Ticker/examples/TickerParameter000000000000
USB/examples/CompositeDevice0000--------
USB/examples/ConsumerControl0000--------
USB/examples/CustomHIDDevice0000--------
USB/examples/FirmwareMSC0000--------
USB/examples/Gamepad0000--------
USB/examples/HIDVendor0000--------
USB/examples/Keyboard/KeyboardLogout0000--------
USB/examples/Keyboard/KeyboardMessage0000--------
USB/examples/Keyboard/KeyboardReprogram0000--------
USB/examples/Keyboard/KeyboardSerial0000--------
USB/examples/KeyboardAndMouseControl0000--------
USB/examples/MIDI/MidiController0000--------
USB/examples/MIDI/MidiInterface0000--------
USB/examples/MIDI/MidiMusicBox0000--------
USB/examples/MIDI/ReceiveMidi0000--------
USB/examples/Mouse/ButtonMouseControl0000--------
USB/examples/SystemControl0000--------
USB/examples/USBMSC0000--------
USB/examples/USBSerial0000--------
USB/examples/USBVendor0000--------
Update/examples/AWS_S3_OTA_Update00000000--00
Update/examples/HTTPS_OTA_Update00000000--00
Update/examples/HTTP_Client_AES_OTA_Update00000000--00
Update/examples/HTTP_Server_AES_OTA_Update00000000--00
Update/examples/OTAWebUpdater00000000--00
Update/examples/SD_Update000000000000
WebServer/examples/AdvancedWebServer00000000--00
WebServer/examples/FSBrowser00000000--00
WebServer/examples/Filters00000000--00
WebServer/examples/HelloServer00000000--00
WebServer/examples/HttpAdvancedAuth00000000--00
WebServer/examples/HttpAuthCallback00000000--00
WebServer/examples/HttpAuthCallbackInline00000000--00
WebServer/examples/HttpBasicAuth00000000--00
WebServer/examples/HttpBasicAuthSHA100000000--00
WebServer/examples/HttpBasicAuthSHA1orBearerToken00000000--00
WebServer/examples/MultiHomedServers00000000--00
WebServer/examples/PathArgServer00000000--00
WebServer/examples/SDWebServer00000000--00
WebServer/examples/SimpleAuthentification00000000--00
WebServer/examples/UploadHugeFile00000000--00
WebServer/examples/WebServer00000000--00
WebServer/examples/WebUpdate00000000--00
WiFi/examples/FTM/FTM_Initiator00000000--00
WiFi/examples/FTM/FTM_Responder00000000--00
WiFi/examples/SimpleWiFiServer00000000--00
WiFi/examples/WPS00000000--00
WiFi/examples/WiFiAccessPoint00000000--00
WiFi/examples/WiFiBlueToothSwitch00--0000--00
WiFi/examples/WiFiClient00000000--00
WiFi/examples/WiFiClientBasic00000000--00
WiFi/examples/WiFiClientConnect00000000--00
WiFi/examples/WiFiClientEnterprise00000000--00
WiFi/examples/WiFiClientEvents00000000--00
WiFi/examples/WiFiClientStaticIP00000000--00
WiFi/examples/WiFiExtender00000000--00
WiFi/examples/WiFiIPv600000000--00
WiFi/examples/WiFiMulti00000000--00
WiFi/examples/WiFiMultiAdvanced00000000--00
WiFi/examples/WiFiScan00000000--00
WiFi/examples/WiFiScanAsync00000000--00
WiFi/examples/WiFiScanDualAntenna00000000--00
WiFi/examples/WiFiScanTime00000000--00
WiFi/examples/WiFiSmartConfig00000000--00
WiFi/examples/WiFiTelnetToSerial00000000--00
WiFi/examples/WiFiUDPClient00000000--00
WiFiProv/examples/WiFiProv00000000--00
Wire/examples/WireMaster000000000000
Wire/examples/WireScan000000000000
Wire/examples/WireSlave000000000000
OpenThread/examples/COAP/coap_lamp------0000--
OpenThread/examples/COAP/coap_switch------0000--
OpenThread/examples/SimpleCLI------0000--
OpenThread/examples/SimpleNode------0000--
OpenThread/examples/SimpleThreadNetwork/LeaderNode------0000--
OpenThread/examples/SimpleThreadNetwork/RouterNode------0000--
OpenThread/examples/ThreadScan------0000--
OpenThread/examples/onReceive------0000--
BluetoothSerial/examples/DiscoverConnect----------00
BluetoothSerial/examples/GetLocalMAC----------00
BluetoothSerial/examples/SerialToSerialBT----------00
BluetoothSerial/examples/SerialToSerialBTM----------00
BluetoothSerial/examples/SerialToSerialBT_Legacy----------00
BluetoothSerial/examples/SerialToSerialBT_SSP----------00
BluetoothSerial/examples/bt_classic_device_discovery----------00
BluetoothSerial/examples/bt_remove_paired_devices----------00
ESP32/examples/DeepSleep/SmoothBlink_ULP_Code----------00
ESP32/examples/Touch/TouchButton----------00
Ethernet/examples/ETH_LAN8720----------00
Ethernet/examples/ETH_TLK110----------00

@me-no-dev
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and how is this a code with higher quality?

@rowingdude rowingdude closed this Aug 19, 2024
@rowingdude rowingdude deleted the Rowingdude-uart_buffer_safety branch August 19, 2024 12:03
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