add pingreq, pingresp and disconnect for mqtt

lib_acl_cpp/include/acl_cpp/mqtt/mqtt_disconnect.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "mqtt_message.hpp"
+
+namespace acl {
+
+class mqtt_disconnect : public mqtt_message {
+public:
+	mqtt_disconnect(void);
+	~mqtt_disconnect(void);
+
+	bool to_string(string& out);
+};
+
+} // namespace acl

lib_acl_cpp/include/acl_cpp/mqtt/mqtt_pingreq.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "mqtt_message.hpp"
+
+namespace acl {
+
+class mqtt_pingreq : public mqtt_message {
+public:
+	mqtt_pingreq(void);
+	~mqtt_pingreq(void);
+
+	bool to_string(string& out);
+};
+
+} // namespace acl

lib_acl_cpp/include/acl_cpp/mqtt/mqtt_pingresp.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "mqtt_message.hpp"
+
+namespace acl {
+
+class mqtt_pingresp : public mqtt_message {
+public:
+	mqtt_pingresp(void);
+	~mqtt_pingresp(void);
+
+	bool to_string(string& out);
+};
+
+} // namespace acl

lib_acl_cpp/src/mqtt/mqtt_disconnect.cpp

@@ -0,0 +1,27 @@
+#include "acl_stdafx.hpp"
+#include "acl_cpp/mqtt/mqtt_disconnect.hpp"
+
+namespace acl {
+
+mqtt_disconnect::mqtt_disconnect()
+: mqtt_message(MQTT_DISCONNECT)
+{
+}
+
+mqtt_disconnect::~mqtt_disconnect(void) {}
+
+bool mqtt_disconnect::to_string(string& out) {
+	bool old_mode = out.get_bin();
+
+	this->set_data_length(0);
+
+	if (!this->pack_header(out)) {
+		out.set_bin(old_mode);
+		return false;
+	}
+
+	out.set_bin(old_mode);
+	return true;
+}
+
+} // namespace acl

lib_acl_cpp/src/mqtt/mqtt_pingreq.cpp

@@ -0,0 +1,27 @@
+#include "acl_stdafx.hpp"
+#include "acl_cpp/mqtt/mqtt_pingreq.hpp"
+
+namespace acl {
+
+mqtt_pingreq::mqtt_pingreq()
+: mqtt_message(MQTT_PINGREQ)
+{
+}
+
+mqtt_pingreq::~mqtt_pingreq(void) {}
+
+bool mqtt_pingreq::to_string(string& out) {
+	bool old_mode = out.get_bin();
+
+	this->set_data_length(0);
+
+	if (!this->pack_header(out)) {
+		out.set_bin(old_mode);
+		return false;
+	}
+
+	out.set_bin(old_mode);
+	return true;
+}
+
+} // namespace acl

lib_acl_cpp/src/mqtt/mqtt_pingresp.cpp

@@ -0,0 +1,27 @@
+#include "acl_stdafx.hpp"
+#include "acl_cpp/mqtt/mqtt_pingresp.hpp"
+
+namespace acl {
+
+mqtt_pingresp::mqtt_pingresp()
+: mqtt_message(MQTT_PINGRESP)
+{
+}
+
+mqtt_pingresp::~mqtt_pingresp(void) {}
+
+bool mqtt_pingresp::to_string(string& out) {
+	bool old_mode = out.get_bin();
+
+	this->set_data_length(0);
+
+	if (!this->pack_header(out)) {
+		out.set_bin(old_mode);
+		return false;
+	}
+
+	out.set_bin(old_mode);
+	return true;
+}
+
+} // namespace acl