New feature of closing the Monitor thread when the hardware disconnects

This is to address #75 It is a very old bug, predates my interaction
with this codebase.

.gitignore

@@ -7,3 +7,4 @@
 .settings/
 *~*
 /.gradle/
+/hs_err_pid26993.log

src/main/c/.gitignore

@@ -1,3 +1,4 @@
 /build
 .project
 .cproject
+/Default/

src/main/c/Makefile

@@ -23,7 +23,7 @@ LININCLUDE=    -I./include -I./include/target -I$(JDKLOCATION)/include -I$(JDKLO
 CCLIN32=gcc $(LININCLUDE) -I./include/ubuntu-multilib-fix  -O3 -Wall -fmessage-length=0 -fPIC -m32 -MMD
 LINKLIN32=gcc -m32 -shared 
 
-CCLIN64=gcc $(LININCLUDE)  -O3 -Wall -fmessage-length=0 -fPIC -m64 -MMD
+CCLIN64=gcc $(LININCLUDE)  -O3 -Wall -fmessage-length=0 -fPIC -m64 -MMD 
 LINKLIN64=g++ -m64 -shared
 
 CCLINARM32=arm-linux-gnueabi-gcc $(LININCLUDE)  -O3 -Wall -c -fmessage-length=0 -fPIC -MMD -MP

src/main/c/src/SerialImp.c

@@ -3690,7 +3690,7 @@ JNIEXPORT jint JNICALL RXTXPort(nativeavailable)( JNIEnv *env,
 	jobject jobj )
 {
 	int fd = get_java_var( env, jobj,"fd","I" );
-	int result;
+	int result=-1;
 /*
 	char message[80];
 
@@ -4265,6 +4265,13 @@ JNIEXPORT void JNICALL RXTXPort(eventLoop)( JNIEnv *env, jobject jobj )
 	do{
 		report_time_eventLoop( );
 		do {
+			if(RXTXPort(nativeavailable)( env, jobj )<0){
+				report("eventLoop: Hardware Missing\n");
+				finalize_threads( &eis );
+				finalize_event_info_struct( &eis );
+				LEAVE("eventLoop:error");
+				return;
+			}
 			/* nothing goes between this call and select */
 			if( eis.closing )
 			{
@@ -4304,6 +4311,7 @@ JNIEXPORT void JNICALL RXTXPort(eventLoop)( JNIEnv *env, jobject jobj )
 			}
 			i = 0;
 #endif /* WIN32 */
+
 		}  while ( eis.ret < 0 && errno == EINTR );
 		if( eis.ret >= 0 )
 		{

src/main/java/gnu/io/RXTXPort.java

@@ -86,7 +86,7 @@ public class RXTXPort extends SerialPort
 	static
 	{
 		try {
-			z = new Zystem();
+			z = new Zystem(Zystem.SILENT_MODE);
 		} catch ( Exception e ) {}
 
 		if(debug ) 

test/src/test/ReadTest.java

@@ -0,0 +1,59 @@
+package test;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.TooManyListenersException;
+
+import gnu.io.NRSerialPort;
+import gnu.io.Zystem;
+public class ReadTest {
+	public static void main(String [] args) {
+
+		String port = "";
+		for(String s:NRSerialPort.getAvailableSerialPorts()){
+			System.out.println("Availible port: "+s);
+			port=s;
+		}
+
+		int baudRate = 115200;
+		NRSerialPort serial = new NRSerialPort(port, baudRate);
+		serial.connect();
+		DataInputStream ins = new DataInputStream(serial.getInputStream());
+		try {
+			serial.addEventListener(ev->{
+				//while(ins.available()==0 && !Thread.interrupted());// wait for a byte
+				try {
+					while(ins.available()>0) {// read all bytes
+
+							char b = (char) ins.read();
+							//outs.write((byte)b);
+							System.out.print(b);
+
+					}
+				} catch (IOException e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+			});
+		} catch (TooManyListenersException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+//		
+//		DataOutputStream outs = new DataOutputStream(serial.getOutputStream());
+//		try{
+//			//while(ins.available()==0 && !Thread.interrupted());// wait for a byte
+//			while(!Thread.interrupted()) {// read all bytes
+//				if(ins.available()>0) {
+//					char b = (char) ins.read();
+//					//outs.write((byte)b);
+//					System.out.print(b);
+//				}
+//		    		Thread.sleep(5);
+//			}
+//		}catch(Exception ex){
+//			ex.printStackTrace();
+//		}
+//		serial.disconnect();
+	}
+}