MQTT

.devcontainer/Dockerfile

@@ -15,13 +15,25 @@ RUN set -eux; \
     libmicrohttpd-dev \
     libcurl4-openssl-dev \
     zlib1g-dev \
-    prometheus-cpp-dev
+    prometheus-cpp-dev \
+    nlohmann-json3-dev
+
 
 RUN set -eux; \
   apt-get update; \
   apt-get install -y \
     libpaho-mqtt-dev
 
+RUN set -eux; \
+  git clone https://github.com/eclipse/paho.mqtt.cpp.git; \
+  cd paho.mqtt.cpp; \
+  git submodule init; \
+  git submodule update; \
+  mkdir build && cd build; \
+  cmake -DPAHO_WITH_MQTT_C=ON ..; \
+  cmake --build . --target install; \
+  ldconfig;
+
   RUN set -eux; \
   apt-get update; \
   apt-get install -y \

CMakeLists.txt

@@ -34,6 +34,7 @@ find_library(NCURSESW_LIB ncursesw REQUIRED)
 find_library(RABBITMQ_LIB rabbitmq REQUIRED)
 
 # Paho MQTT C client
+find_library(PAHO_MQTTPP3_LIB paho-mqttpp3 REQUIRED)
 find_library(PAHO_MQTT3C_LIB paho-mqtt3c REQUIRED)
 
 # -------------------------------
@@ -53,5 +54,6 @@ target_link_libraries(geii_exporter
     ${Z_LIB}
     ${NCURSESW_LIB}
     ${RABBITMQ_LIB}
-    ${PAHO_MQTT3C_LIB}
+    ${PAHO_MQTT3C_LIB}     # dépendance C
+    ${PAHO_MQTTPP3_LIB}    # lib C++
 )

main.cpp

@@ -12,6 +12,23 @@
 #include <prometheus/registry.h>
 #include <prometheus/exposer.h>
 
+#include <curl/curl.h>
+#include <string>
+#include <iostream>
+
+#include <thread>
+#include <atomic>
+#include <queue>
+#include <mutex>
+#include <condition_variable>
+#include <csignal>
+#include <chrono>
+#include <cstring>
+#undef timeout
+#include "mqtt/async_client.h"
+
+using namespace std::chrono_literals;
+
 // Constantes de fonctionnement
 #define LEVEL_MIN 2
 #define FLOW_PER_PUMP 150