MqttClient::unsubscribe implemented

.github/workflows/aunit.yml

@@ -0,0 +1,27 @@
+# See https://docs.github.com/en/actions/guides for documentation about GitHub
+# Actions.
+
+name: AUnit Tests
+
+# Run on all branches.
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-18.04
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Setup
+      run: |
+        cd ..
+        git clone https://github.com/bxparks/EpoxyDuino
+        git clone https://github.com/bxparks/AceRoutine
+        git clone https://github.com/bxparks/AUnit
+        git clone https://github.com/bxparks/AceCommon
+    - name: Verify tests
+      run: |
+        make -C tests
+        make -C tests runtests

.github/workflows/superlinter.yml

@@ -1,6 +1,7 @@
 name: Super-Linter
 
 # Run this workflow every time a new commit pushed to your repository
+#
 on: push
 
 jobs:

README.md

@@ -1,10 +1,10 @@
 # TinyMqtt
 
-![](https://img.shields.io/github/v/release/hsaturn/TinyMqtt)
-![](https://img.shields.io/github/issues/hsaturn/TinyMqtt)
-![](https://img.shields.io/badge/platform-ESP8266-green)
-![](https://img.shields.io/github/license/hsaturn/TinyMqtt)
-![](https://img.shields.io/badge/Mqtt-%203.1.1-yellow)
+![Release](https://img.shields.io/github/v/release/hsaturn/TinyMqtt)
+![Issues](https://img.shields.io/github/issues/hsaturn/TinyMqtt)
+![Esp8266](https://img.shields.io/badge/platform-ESP8266-green)
+![Gpl 3.0](https://img.shields.io/github/license/hsaturn/TinyMqtt)
+![Mqtt 3.1.1](https://img.shields.io/badge/Mqtt-%203.1.1-yellow)
 
 ESP 8266 is a small, fast and capable Mqtt Broker and Client
 
@@ -26,6 +26,7 @@ ESP 8266 is a small, fast and capable Mqtt Broker and Client
 * Implement zeroconf mode (needs async)
 * Add a max_clients in MqttBroker. Used with zeroconf, there will be
 no need for having tons of clients (also RAM is the problem with many clients)
+* Why not a 'global' TinyMqtt::loop() instead of having to call loop for all broker/clients instances
 * Test what is the real max number of clients for broker. As far as I saw, 1k is needed per client which would make more than 30 clients critical.
 * ~~MqttMessage uses a buffer 256 bytes which is usually far than needed.~~
 * ~~MqttClient does not support more than one subscription at time~~

library.json

@@ -6,7 +6,7 @@
         "type": "git",
         "url": "https://github.com/hsaturn/TinyMqtt.git"
     },
-    "version": "0.7.0",
+    "version": "0.7.1",
     "exclude": "",
     "examples": "examples/*/*.ino",
     "frameworks": "arduino",

library.properties

@@ -1,5 +1,5 @@
 name=TinyMqtt
-version=0.7.0
+version=0.7.1
 author=Francois BIOT, HSaturn, <hsaturn@gmail.com>
 maintainer=Francois BIOT, HSaturn, <hsaturn@gmail.com>
 sentence=A tiny broker and client library for MQTT messaging.

src/TinyMqtt.cpp

@@ -41,7 +41,6 @@ MqttClient::~MqttClient()
 {
 	close();
 	delete client;
-	Serial << "Client deleted" << endl;
 }
 
 void MqttClient::close(bool bSendDisconnect)
@@ -269,10 +268,30 @@ MqttError MqttClient::subscribe(Topic topic, uint8_t qos)
 
  	subscriptions.insert(topic);
 
-	if (parent==nullptr) // remote broker ?
+	if (parent==nullptr) // remote broker
 	{
-		debug("remote subscribe");
-		MqttMessage msg(MqttMessage::Type::Subscribe, 2);
+		return sendTopic(topic, MqttMessage::Type::Subscribe, qos);
+	}
+	return ret;
+}
+
+MqttError MqttClient::unsubscribe(Topic topic)
+{
+	auto it=subscriptions.find(topic);
+	if (it != subscriptions.end())
+	{
+		subscriptions.erase(it);
+		if (parent==nullptr) // remote broker
+		{
+			return sendTopic(topic, MqttMessage::Type::UnSubscribe, 0);
+		}
+	}
+	return MqttOk;
+}
+
+MqttError MqttClient::sendTopic(const Topic& topic, MqttMessage::Type type, uint8_t qos)
+{
+	MqttMessage msg(type, 2);
 
 	// TODO manage packet identifier
 	msg.add(0);
@@ -280,11 +299,9 @@ MqttError MqttClient::subscribe(Topic topic, uint8_t qos)
 
 	msg.add(topic);
 	msg.add(qos);
-		ret = msg.sendTo(this);
 
-		// TODO we should wait (state machine) for SUBACK
-	}
-	return ret;
+	// TODO instead we should wait (state machine) for SUBACK / UNSUBACK ?
+	return msg.sendTo(this);
 }
 
 long MqttClient::counter=0;

src/TinyMqtt.h

@@ -149,7 +149,7 @@ class MqttClient
 		MqttError publish(const Topic& t) { return publish(t, nullptr, 0);};
 
 		MqttError subscribe(Topic topic, uint8_t qos=0);
-		MqttError unsubscribe(Topic& topic);
+		MqttError unsubscribe(Topic topic);
 
 		// connected to local broker
 		// TODO seems to be useless
@@ -178,6 +178,7 @@ class MqttClient
 		static long counter;	// Number of messages sent
 
 	private:
+		MqttError sendTopic(const Topic& topic, MqttMessage::Type type, uint8_t qos);
 		void resubscribe();
 
 		friend class MqttBroker;

tests/Makefile

@@ -0,0 +1,20 @@
+tests:
+	set -e; \
+	for i in *-tests/Makefile; do \
+		echo '==== Making:' $$(dirname $$i); \
+		$(MAKE) -C $$(dirname $$i) -j; \
+	done
+
+runtests:
+	set -e; \
+	for i in *-tests/Makefile; do \
+		echo '==== Running:' $$(dirname $$i); \
+		$$(dirname $$i)/$$(dirname $$i).out; \
+	done
+
+clean:
+	set -e; \
+	for i in *-tests/Makefile; do \
+		echo '==== Cleaning:' $$(dirname $$i); \
+		$(MAKE) -C $$(dirname $$i) clean; \
+	done

tests/local-tests/Makefile

@@ -0,0 +1,6 @@
+# See https://github.com/bxparks/EpoxyDuino for documentation about this
+# Makefile to compile and run Arduino programs natively on Linux or MacOS.
+
+APP_NAME := local-tests
+ARDUINO_LIBS := AUnit AceCommon AceTime TinyMqtt ESP8266WiFi
+include ../../../EpoxyDuino/EpoxyDuino.mk

tests/local-tests/local-tests.ino

@@ -96,8 +96,9 @@ test(local_unsubscribe)
 	MqttClient publisher(&broker);
 	publisher.publish("a/b");
 
-	// subscriber.unsubscribe("a/b");		TODO not yet implemented
+	subscriber.unsubscribe("a/b");
 
+	publisher.publish("a/b");
 	publisher.publish("a/b");
 
 	assertTrue(published[""]["a/b"] == 1);	// Only one publish has been received
@@ -120,7 +121,6 @@ test(local_nocallback_when_destroyed)
 	assertEqual(published.size(), (size_t)0);	// Only one publish has been received
 }
 
-
 //----------------------------------------------------------------------------
 // setup() and loop()
 void setup() {