增加MQTT相关的类和实现

app/src/main/cpp/MicroPhoto.cpp

@@ -23,6 +23,10 @@
 #include "client/linux/handler/minidump_descriptor.h"
 #endif
 
+#ifdef USING_MQTT
+#include <mosquitto.h>
+#endif
+
 #include <android/native_window.h>
 #include <android/native_window_jni.h>
 
@@ -227,9 +231,22 @@ jint JNI_OnLoad(JavaVM* vm, void* reserved)
 
     curl_global_init(CURL_GLOBAL_ALL);
 
+#ifdef USING_MQTT
+    mosquitto_lib_init();
+#endif
+
     return result;
 }
 
+JNIEXPORT void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved)
+{
+#ifdef USING_MQTT
+    mosquitto_lib_cleanup();
+#endif
+
+    curl_global_cleanup();
+}
+
 bool GetJniEnv(JavaVM *vm, JNIEnv **env, bool& didAttachThread)
 {
     didAttachThread = false;