From 5db15c08504b9a229bb47bc5cba034616af9f745 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Tue, 3 Jun 2025 14:22:53 +0200
Subject: [PATCH] Addressing Issue #552

While using platformio build system some new structures are not included
in the final binary, for this reason it is required for concrete
encoder and decoder for cbor commands to be referenced in files that are
referenced by the sketch entrypoint
---
 src/ArduinoIoTCloudTCP.cpp          |  3 ++-
 src/cbor/IoTCloudMessageDecoder.cpp | 10 ++++++++++
 src/cbor/IoTCloudMessageDecoder.h   |  8 ++++++++
 src/cbor/IoTCloudMessageEncoder.cpp | 11 +++++++++++
 src/cbor/IoTCloudMessageEncoder.h   |  7 +++++++
 5 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/ArduinoIoTCloudTCP.cpp b/src/ArduinoIoTCloudTCP.cpp
index 9de9d301a..31e972882 100644
--- a/src/ArduinoIoTCloudTCP.cpp
+++ b/src/ArduinoIoTCloudTCP.cpp
@@ -72,7 +72,8 @@ ArduinoIoTCloudTCP::ArduinoIoTCloudTCP()
 , _get_ota_confirmation{nullptr}
 #endif /* OTA_ENABLED */
 {
-
+  cbor::encoder::iotcloud::commandEncoders();
+  cbor::decoder::iotcloud::commandDecoders();
 }
 
 /******************************************************************************
diff --git a/src/cbor/IoTCloudMessageDecoder.cpp b/src/cbor/IoTCloudMessageDecoder.cpp
index 8a17ba1f3..8deb9e3e5 100644
--- a/src/cbor/IoTCloudMessageDecoder.cpp
+++ b/src/cbor/IoTCloudMessageDecoder.cpp
@@ -176,3 +176,13 @@ static ThingUpdateCommandDecoder      thingUpdateCommandDecoder;
 static ThingDetachCommandDecoder      thingDetachCommandDecoder;
 static LastValuesUpdateCommandDecoder lastValuesUpdateCommandDecoder;
 static TimezoneCommandDownDecoder     timezoneCommandDownDecoder;
+
+namespace cbor { namespace decoder { namespace iotcloud {
+  void commandDecoders() {
+    (void) otaUpdateCommandDecoder;
+    (void) thingUpdateCommandDecoder;
+    (void) thingDetachCommandDecoder;
+    (void) lastValuesUpdateCommandDecoder;
+    (void) timezoneCommandDownDecoder;
+  }
+}}}
diff --git a/src/cbor/IoTCloudMessageDecoder.h b/src/cbor/IoTCloudMessageDecoder.h
index 4b444f5c8..f072a2c3a 100644
--- a/src/cbor/IoTCloudMessageDecoder.h
+++ b/src/cbor/IoTCloudMessageDecoder.h
@@ -63,4 +63,12 @@ class TimezoneCommandDownDecoder: public CBORMessageDecoderInterface {
   MessageDecoder::Status decode(CborValue* iter, Message *msg) override;
 };
 
+namespace cbor { namespace decoder { namespace iotcloud {
+  /**
+   * Some link time optimization may exclude these classes to be instantiated
+   * thus it may be required to reference them from outside of this file
+   */
+  void commandDecoders();
+}}}
+
 #endif /* ARDUINO_CBOR_MESSAGE_DECODER_H_ */
diff --git a/src/cbor/IoTCloudMessageEncoder.cpp b/src/cbor/IoTCloudMessageEncoder.cpp
index ed4c6d823..71363cf5e 100644
--- a/src/cbor/IoTCloudMessageEncoder.cpp
+++ b/src/cbor/IoTCloudMessageEncoder.cpp
@@ -159,3 +159,14 @@ static LastValuesBeginCommandEncoder  lastValuesBeginCommandEncoder;
 static DeviceBeginCommandEncoder      deviceBeginCommandEncoder;
 static OtaProgressCommandUpEncoder    otaProgressCommandUpEncoder;
 static TimezoneCommandUpEncoder       timezoneCommandUpEncoder;
+
+namespace cbor { namespace encoder { namespace iotcloud {
+  void commandEncoders() {
+    (void) otaBeginCommandEncoder;
+    (void) thingBeginCommandEncoder;
+    (void) lastValuesBeginCommandEncoder;
+    (void) deviceBeginCommandEncoder;
+    (void) otaProgressCommandUpEncoder;
+    (void) timezoneCommandUpEncoder;
+  }
+}}}
diff --git a/src/cbor/IoTCloudMessageEncoder.h b/src/cbor/IoTCloudMessageEncoder.h
index 99922bc59..9b5ca441d 100644
--- a/src/cbor/IoTCloudMessageEncoder.h
+++ b/src/cbor/IoTCloudMessageEncoder.h
@@ -71,5 +71,12 @@ class TimezoneCommandUpEncoder: public CBORMessageEncoderInterface {
   MessageEncoder::Status encode(CborEncoder* encoder, Message *msg) override;
 };
 
+namespace cbor { namespace encoder { namespace iotcloud {
+  /**
+   * Some link time optimization may exclude these classes to be instantiated
+   * thus it may be required to reference them from outside of this file
+   */
+  void commandEncoders();
+}}}
 
 #endif /* ARDUINO_CBOR_MESSAGE_ENCODER_H_ */