🤖 Moves esp32 project to own project folder
This commit is contained in:
Rune Harlyk
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#pragma once
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#include <map>
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#include <ESPAsyncWebServer.h>
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#include <deviceconfig.h>
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#include <AsyncJson.h>
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#include <ArduinoJson.h>
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#include <HTTPClient.h>
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#include <Update.h>
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#include <SPIFFS.h>
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#include <servo.h>
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#include <AsyncJpegStream.h>
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#define HTTP_CODE_OK 200
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#define HTTP_CODE_NOT_FOUND 404
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class CWebServer {
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private:
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// Template for param to value converter function, used by PushPostParamIfPresent()
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template<typename Tv>
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using ParamValueGetter = std::function<Tv(AsyncWebParameter *param)>;
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// Template for value setting forwarding function, used by PushPostParamIfPresent()
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template<typename Tv>
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using ValueSetter = std::function<bool(Tv)>;
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// Value validating function type, as used by DeviceConfig (and possible others)
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using ValueValidator = std::function<DeviceConfig::ValidateResponse(const String&)>;
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struct StaticStatistics {
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uint32_t HeapSize;
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size_t DmaHeapSize;
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uint32_t PsramSize;
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const char *ChipModel;
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uint8_t ChipCores;
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uint32_t CpuFreqMHz;
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uint32_t SketchSize;
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uint32_t FreeSketchSpace;
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uint32_t FlashChipSize;
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};
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static std::vector<SettingSpec> deviceSettingSpecs;
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static const std::map<String, ValueValidator> settingValidators;
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AsyncWebServer _server;
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StaticStatistics _staticStats;
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#if USE_WEBSOCKET
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AsyncWebSocket _ws;
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#endif
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// Helper functions/templates
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// Convert param value to a specific type and forward it to a setter function that expects that type as an argument
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template<typename Tv>
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static bool PushPostParamIfPresent(AsyncWebServerRequest * pRequest, const String ¶mName, ValueSetter<Tv> setter, ParamValueGetter<Tv> getter)
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{
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if (!pRequest->hasParam(paramName, true, false))
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return false;
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log_v("found %s", paramName.c_str());
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AsyncWebParameter *param = pRequest->getParam(paramName, true, false);
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// Extract the value and pass it off to the setter
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return setter(getter(param));
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}
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// Generic param value forwarder. The type argument must be implicitly convertable from String!
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// Some specializations of this are included in the CPP file
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template<typename Tv>
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static bool PushPostParamIfPresent(AsyncWebServerRequest * pRequest, const String ¶mName, ValueSetter<Tv> setter)
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{
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return PushPostParamIfPresent<Tv>(pRequest, paramName, setter, [](AsyncWebParameter * param) { return param->value(); });
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}
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// AddCORSHeaderAndSend(OK)Response
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//
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// Sends a response with CORS headers added
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template<typename Tr>
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static void AddCORSHeaderAndSendResponse(AsyncWebServerRequest * pRequest, Tr * pResponse)
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{
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// pResponse->addHeader("Server", HOSTNAME);
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// pResponse->addHeader("Access-Control-Allow-Origin", "*");
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pRequest->send(pResponse);
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}
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// Version for empty response, normally used to finish up things that don't return anything, like "NextEffect"
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static void AddCORSHeaderAndSendOKResponse(AsyncWebServerRequest * pRequest)
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{
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AddCORSHeaderAndSendResponse(pRequest, pRequest->beginResponse(HTTP_CODE_OK));
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}
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// Straightforward support functions
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static bool IsPostParamTrue(AsyncWebServerRequest * pRequest, const String & paramName);
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static const std::vector<SettingSpec> & LoadDeviceSettingSpecs();
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static void SendSettingSpecsResponse(AsyncWebServerRequest * pRequest, const std::vector<SettingSpec> & settingSpecs);
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static void SetSettingsIfPresent(AsyncWebServerRequest * pRequest);
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#if USE_OAT
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static void UpdateFirmware(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final);
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static void UpdateFileSystemImage(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final);
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static void HandleUpdate(AsyncWebServerRequest* request, String filename, size_t index, uint8_t* data, size_t len, bool final, size_t upload_size, uint8_t upload_index);
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#endif
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// Endpoint member functions
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static void GetSettingSpecs(AsyncWebServerRequest * pRequest);
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static void GetSettings(AsyncWebServerRequest * pRequest);
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static void SetSettings(AsyncWebServerRequest * pRequest);
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static void SaveFile(AsyncWebServerRequest* request, String filename, size_t index, uint8_t* data, size_t len, bool final);
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#if USE_OAT
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static void UpdateRequestHandler(AsyncWebServerRequest * pRequest);
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#endif
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static void Reset(AsyncWebServerRequest * pRequest);
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static void GzipSpa(AsyncWebServerRequest * pRequest);
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static void HandleWsMessage(AsyncWebSocket* server, AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len);
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// Not static because it uses member _staticStats
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void GetStatistics(AsyncWebServerRequest * pRequest);
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public:
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CWebServer()
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: _server(HTTP_PORT)
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#if USE_WEBSOCKET
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, _ws(WEBSOCKET_PATH)
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#endif
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{}
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void begin() {
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DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", "*");
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DefaultHeaders::Instance().addHeader("Access-Control-Allow-Methods", "GET, POST, PUT");
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DefaultHeaders::Instance().addHeader("Access-Control-Allow-Headers", "Content-Type");
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DefaultHeaders::Instance().addHeader("Server", HOSTNAME);
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_staticStats.HeapSize = ESP.getHeapSize();
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_staticStats.DmaHeapSize = heap_caps_get_total_size(MALLOC_CAP_DMA);
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_staticStats.PsramSize = ESP.getPsramSize();
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_staticStats.ChipModel = ESP.getChipModel();
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_staticStats.ChipCores = ESP.getChipCores();
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_staticStats.CpuFreqMHz = ESP.getCpuFreqMHz();
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_staticStats.SketchSize = ESP.getSketchSize();
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_staticStats.FreeSketchSpace = ESP.getFreeSketchSpace();
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_staticStats.FlashChipSize = ESP.getFlashChipSize();
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_server.onFileUpload(SaveFile);
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#if USE_WEBSOCKET
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_ws.onEvent(HandleWsMessage);
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_server.addHandler(&_ws);
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#endif
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_server.on("/api/statistics", HTTP_GET, [this](AsyncWebServerRequest * pRequest) { this->GetStatistics(pRequest); });
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_server.on("/api/getStatistics", HTTP_GET, [this](AsyncWebServerRequest * pRequest) { this->GetStatistics(pRequest); });
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_server.on("/api/settings/specs", HTTP_GET, [](AsyncWebServerRequest * pRequest) { GetSettingSpecs(pRequest); });
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_server.on("/api/settings", HTTP_GET, [](AsyncWebServerRequest * pRequest) { GetSettings(pRequest); });
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_server.on("/api/settings", HTTP_POST, [](AsyncWebServerRequest * pRequest) { SetSettings(pRequest); });
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#if USE_OAT
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_server.on("/api/update/filesystem", HTTP_POST, UpdateRequestHandler, UpdateFirmware);
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_server.on("/api/update/firmware", HTTP_POST, UpdateRequestHandler, UpdateFileSystemImage);
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#endif
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_server.on("/api/stream", HTTP_GET, streamJpg);
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_server.on("/api/reset", HTTP_POST, [](AsyncWebServerRequest * pRequest) { Reset(pRequest); });
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_server.serveStatic("/", SPIFFS, "/").setCacheControl("max-age=31536000");
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_server.onNotFound([](AsyncWebServerRequest *pRequest) { GzipSpa(pRequest); });
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#if USE_WEBSERVER_SSL
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_server.beginSecure("/server.cer", "/server.key", NULL);
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_server.onSslFileRequest([](void * arg, const char *filename, uint8_t **buf) -> int {
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Serial.printf("SSL File: %s\n", filename);
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File file = SPIFFS.open(filename, "r");
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if(file){
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size_t size = file.size();
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uint8_t * nbuf = (uint8_t*)malloc(size);
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if(nbuf){
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size = file.read(nbuf, size);
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file.close();
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*buf = nbuf;
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return size;
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}
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file.close();
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}
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*buf = 0;
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return 0;
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}, NULL);
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#else
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_server.begin();
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#endif
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log_i("HTTP server started");
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}
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void loop() {
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#if USE_WEBSOCKET
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_ws.cleanupClients();
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#endif
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}
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void broadcast(uint8_t* content, size_t length) {
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_ws.binaryAll(content, length);
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}
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void broadcastJson(char* content, size_t length) {
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_ws.textAll(content, length);
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}
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};
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// Set value in lambda using a forwarding function. Always returns true
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#define SET_VALUE(functionCall) [](auto value) { functionCall; return true; }
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// Set value in lambda using a forwarding function. Reports success based on function's return value,
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// which must be implicitly convertable to bool
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#define CONFIRM_VALUE(functionCall) [](auto value)->bool { return functionCall; }
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