fix(openocd): fixed the port handler behavior

Author: alirana01

bundles/com.espressif.idf.core/src/com/espressif/idf/core/util/PortChecker.java

@@ -5,6 +5,7 @@
 package com.espressif.idf.core.util;
 
 import java.io.IOException;
+import java.net.ServerSocket;
 import java.net.Socket;
 
 import com.espressif.idf.core.logging.Logger;
@@ -25,45 +26,16 @@ private PortChecker()
 
 	public static boolean isPortAvailable(int port)
 	{
-		int attempts = 0;
-		int retryCount = 3;
-		long retryDelayMillis = 200;
-
-		while (attempts <= retryCount)
+		try (ServerSocket serverSocket = new ServerSocket(port))
 		{
-			try (Socket ignored = new Socket("localhost", port)) //$NON-NLS-1$
-			{
-				// If the socket opens, the port is in use
-				return false;
-			}
-			catch (IOException e)
-			{
-				// Port is unavailable, retrying if there are attempts left
-				if (attempts == retryCount)
-				{
-					// After exhausting all retries, return false
-					Logger.log("Port " + port + " is not available after " + retryCount + " retries."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
-					return false; // Failure, port is still not available
-				}
-
-				attempts++;
-
-				// Log retry attempt
-				Logger.log("Attempt " + attempts + " failed, retrying in " + retryDelayMillis + " ms..."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
-
-				try
-				{
-					Thread.sleep(retryDelayMillis);
-				}
-				catch (InterruptedException interruptedException)
-				{
-					Thread.currentThread().interrupt(); // Restore interrupt status
-					Logger.log("Port availability check interrupted."); //$NON-NLS-1$
-					return false; // If interrupted, assume port unavailable and stop
-				}
-			}
+			serverSocket.setReuseAddress(true);
+			return true;
+		}
+		catch (Exception e)
+		{
+			Logger.log("Port: " + port + " is not available"); //$NON-NLS-1$ //$NON-NLS-2$
+			return false;
 		}
-		return true; //Fallback not reachable
 	}
 
 	/**

bundles/com.espressif.idf.debug.gdbjtag.openocd/src/com/espressif/idf/debug/gdbjtag/openocd/Configuration.java

@@ -93,8 +93,7 @@ public static String[] getGdbServerCommandLineArray(ILaunchConfiguration configu
 			lst.add(executable);
 
 			int port = PortChecker
-					.getAvailablePort(configuration.getAttribute(ConfigurationAttributes.GDB_SERVER_GDB_PORT_NUMBER,
-							DefaultPreferences.GDB_SERVER_GDB_PORT_NUMBER_DEFAULT));
+					.getAvailablePort(DefaultPreferences.GDB_SERVER_GDB_PORT_NUMBER_DEFAULT);
 
 			lst.add("-c"); //$NON-NLS-1$
 			lst.add("gdb_port " + port); //$NON-NLS-1$

bundles/com.espressif.idf.debug.gdbjtag.openocd/src/com/espressif/idf/debug/gdbjtag/openocd/dsf/Launch.java

@@ -149,9 +149,7 @@ protected void provideDefaults(ILaunchConfigurationWorkingCopy config) throws Co
 
 		if (Configuration.getDoStartGdbServer(config))
 		{
-			int availableRemotePort = PortChecker.getAvailablePort(config.getAttribute(IGDBJtagConstants.ATTR_PORT_NUMBER,
-					DefaultPreferences.GDB_SERVER_GDB_PORT_NUMBER_DEFAULT));
-			config.setAttribute(IGDBJtagConstants.ATTR_PORT_NUMBER, availableRemotePort);
+			config.setAttribute(IGDBJtagConstants.ATTR_PORT_NUMBER, DefaultPreferences.GDB_SERVER_GDB_PORT_NUMBER_DEFAULT);
 		}
 
 		config.setAttribute(DebugPlugin.ATTR_PROCESS_FACTORY_ID, CustomIdfProcessFactory.ID);