Properly handle LSL object lifetimes with using / Dispose in examples

Author: tstenner

examples/HandleMetaData/HandleMetaData.cs

@@ -12,10 +12,10 @@ static void Main(string[] args)
                 Console.Out.WriteLine("Test");
             }
             // create a new StreamInfo and declare some meta-data (in accordance with XDF format)
-            using liblsl.StreamInfo info = new liblsl.StreamInfo("MetaTester","EEG",8,100,liblsl.channel_format_t.cf_float32,"myuid323457");
+            using liblsl.StreamInfo info = new liblsl.StreamInfo("MetaTester", "EEG", 8, 100, liblsl.channel_format_t.cf_float32, "myuid323457");
             liblsl.XMLElement chns = info.desc().append_child("channels");
-            String[] labels = {"C3","C4","Cz","FPz","POz","CPz","O1","O2"};
-            for (int k=0;k<labels.Length;k++)
+            String[] labels = { "C3", "C4", "Cz", "FPz", "POz", "CPz", "O1", "O2" };
+            for (int k = 0; k < labels.Length; k++)
                 chns.append_child("channel")
                     .append_child_value("label", labels[k])
                     .append_child_value("unit", "microvolts")
@@ -32,9 +32,9 @@ static void Main(string[] args)
             // === the following could run on another computer ===
 
             // resolve the stream and open an inlet
-            liblsl.StreamInfo[] results = liblsl.resolve_stream("name","MetaTester");
+            liblsl.StreamInfo[] results = liblsl.resolve_stream("name", "MetaTester");
             using liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0]);
-            foreach (liblsl.StreamInfo si in results) si.Dispose();
+            results.DisposeArray();
 
             // get the full stream info (including custom meta-data) and dissect it
             using liblsl.StreamInfo inf = inlet.info();

examples/ReceiveData/ReceiveData.cs

@@ -10,7 +10,8 @@ static void Main(string[] args)
             liblsl.StreamInfo[] results = liblsl.resolve_stream("type", "EEG");
 
             // open an inlet and print some interesting info about the stream (meta-data, etc.)
-            liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0]);
+            using liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0]);
+            results.DisposeArray();
             System.Console.Write(inlet.info().as_xml());
 
             // read samples

examples/ReceiveDataInChunks/ReceiveDataInChunks.cs

@@ -14,8 +14,9 @@ static void Main(string[] args)
             // Note: The use of post-processing makes it impossible to recover
             // the original timestamps and is not recommended for applications
             // that store data to disk.
-            liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0],
+            using liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0],
                 postproc_flags: liblsl.processing_options_t.proc_ALL);
+            results.DisposeArray();
             System.Console.Write(inlet.info().as_xml());
 
             // read samples

examples/ReceiveStringMarkers/ReceiveStringMarkers.cs

@@ -11,7 +11,8 @@ static void Main(string[] args)
             liblsl.StreamInfo[] results = liblsl.resolve_stream("type", "Markers");
 
             // open an inlet and print meta-data
-            liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0]);
+            using liblsl.StreamInlet inlet = new liblsl.StreamInlet(results[0]);
+            results.DisposeArray();
             Console.Write(inlet.info().as_xml());
 
             // read samples

examples/SendData/SendData.cs

@@ -11,8 +11,8 @@ static void Main(string[] args)
             Random rnd = new Random();
 
             // create stream info and outlet
-            liblsl.StreamInfo info = new liblsl.StreamInfo("TestCSharp", "EEG", 8, 100, liblsl.channel_format_t.cf_float32, "sddsfsdf");
-            liblsl.StreamOutlet outlet = new liblsl.StreamOutlet(info);
+            using liblsl.StreamInfo info = new liblsl.StreamInfo("TestCSharp", "EEG", 8, 100, liblsl.channel_format_t.cf_float32, "sddsfsdf");
+            using liblsl.StreamOutlet outlet = new liblsl.StreamOutlet(info);
             float[] data = new float[8];
             while (!Console.KeyAvailable)
             {

examples/SendDataInChunks/SendDataInChunks.cs

@@ -10,8 +10,8 @@ static void Main(string[] args)
         {
             Random rnd = new Random();
             // create stream info and outlet
-            liblsl.StreamInfo info = new liblsl.StreamInfo("TestCSharp", "EEG", 8, 100, liblsl.channel_format_t.cf_float32, "sddsfsdf");
-            liblsl.StreamOutlet outlet = new liblsl.StreamOutlet(info);
+            using liblsl.StreamInfo info = new liblsl.StreamInfo("TestCSharp", "EEG", 8, 100, liblsl.channel_format_t.cf_float32, "sddsfsdf");
+            using liblsl.StreamOutlet outlet = new liblsl.StreamOutlet(info);
 
             // send data in chunks of 10 samples and 8 channels
             float[,] data = new float[10, 8];

examples/SendStringMarkers/SendStringMarkers.cs

@@ -9,8 +9,8 @@ class Program
         static void Main(string[] args)
         {
             // create stream info and outlet
-            liblsl.StreamInfo inf = new liblsl.StreamInfo("Test1", "Markers", 1, 0, liblsl.channel_format_t.cf_string, "giu4569");
-            liblsl.StreamOutlet outl = new liblsl.StreamOutlet(inf);
+            using liblsl.StreamInfo inf = new liblsl.StreamInfo("Test1", "Markers", 1, 0, liblsl.channel_format_t.cf_string, "giu4569");
+            using liblsl.StreamOutlet outl = new liblsl.StreamOutlet(inf);
 
             Random rnd = new Random();
             string[] strings = new string[] { "Test", "ABC", "123" };