compile with esp mqtt lib

lib/espMqttClient/src/Transport/ClientSync.cpp

@@ -0,0 +1,75 @@
+/*
+Copyright (c) 2022 Bert Melis. All rights reserved.
+
+This work is licensed under the terms of the MIT license.  
+For a copy, see <https://opensource.org/licenses/MIT> or
+the LICENSE file.
+*/
+
+#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
+
+#include "ClientSync.h"
+#include <lwip/sockets.h>  // socket options
+
+namespace espMqttClientInternals {
+
+ClientSync::ClientSync(WiFiClient* wiFiClient)
+: client(wiFiClient) {
+  // empty
+}
+
+bool ClientSync::connect(IPAddress ip, uint16_t port) {
+  bool ret = client->connect(ip, port);  // implicit conversion of return code int --> bool
+  if (ret) {
+    #if defined(ARDUINO_ARCH_ESP8266)
+    client->setNoDelay(true);
+    #elif defined(ARDUINO_ARCH_ESP32)
+    // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure (for consistency also here)
+    int val = true;
+    client->setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
+    #endif
+  }
+  return ret;
+}
+
+bool ClientSync::connect(const char* host, uint16_t port) {
+  bool ret = client->connect(host, port);  // implicit conversion of return code int --> bool
+  if (ret) {
+    #if defined(ARDUINO_ARCH_ESP8266)
+    client->setNoDelay(true);
+    #elif defined(ARDUINO_ARCH_ESP32)
+    // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure (for consistency also here)
+    int val = true;
+    client->setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
+    #endif
+  }
+  return ret;
+}
+
+size_t ClientSync::write(const uint8_t* buf, size_t size) {
+  return client->write(buf, size);
+}
+
+int ClientSync::available() {
+  return client->available();
+}
+
+int ClientSync::read(uint8_t* buf, size_t size) {
+  return client->read(buf, size);
+}
+
+void ClientSync::stop() {
+  client->stop();
+}
+
+bool ClientSync::connected() {
+  return client->connected();
+}
+
+bool ClientSync::disconnected() {
+  return !client->connected();
+}
+
+}  // namespace espMqttClientInternals
+
+#endif