Added support for Mac OS X.

src/main/cpp/OSX/SerialPort_OSX.cpp

@@ -212,7 +212,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configTimeou
 		options.c_cc[VMIN] = 1;
 		options.c_cc[VTIME] = 0;
 	}
-	else																								// Non-blocking
+	else																											// Non-blocking
 	{
 		flags |= O_NONBLOCK;
 		options.c_cc[VMIN] = 0;
@@ -224,6 +224,53 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configTimeou
 	return (tcsetattr(serialFD, TCSAFLUSH, &options) == 0) ? JNI_TRUE : JNI_FALSE;
 }
 
+JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configEventFlags(JNIEnv *env, jobject obj)
+{
+	jclass serialCommClass = env->GetObjectClass(obj);
+	int serialFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J"));
+
+	// Get event flags from Java class
+	int eventsToMonitor = env->GetIntField(obj, env->GetFieldID(serialCommClass, "eventFlags", "I"));
+
+	// Change read timeouts if we are monitoring data received
+	if ((eventsToMonitor & com_fazecast_jSerialComm_SerialPort_LISTENING_EVENT_DATA_RECEIVED) > 0)
+	{
+		struct termios options;
+		tcgetattr(serialFD, &options);
+		int flags = fcntl(serialFD, F_GETFL);
+		flags &= ~O_NONBLOCK;
+		options.c_cc[VMIN] = 0;
+		options.c_cc[VTIME] = 10;
+		fcntl(serialFD, F_SETFL, flags);
+		tcsetattr(serialFD, TCSAFLUSH, &options);
+	}
+	else
+		Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(env, obj);
+
+	// Apply changes
+	return JNI_TRUE;
+}
+
+JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_waitForEvent(JNIEnv *env, jobject obj)
+{
+	jclass serialCommClass = env->GetObjectClass(obj);
+	int serialFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J"));
+
+	// Initialize the waiting set and the timeouts
+	struct timeval timeout;
+	fd_set waitingSet;
+	FD_ZERO(&waitingSet);
+	FD_SET(serialFD, &waitingSet);
+	timeout.tv_sec = 1;
+	timeout.tv_usec = 0;
+
+	// Wait for a serial port event
+	int retVal = select(serialFD + 1, &waitingSet, NULL, NULL, &timeout);
+	if (retVal <= 0)
+		return 0;
+	return (FD_ISSET(serialFD, &waitingSet)) ? com_fazecast_jSerialComm_SerialPort_LISTENING_EVENT_DATA_AVAILABLE : 0;
+}
+
 JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_closePortNative(JNIEnv *env, jobject obj)
 {
 	// Close port

src/main/java/com/fazecast/jSerialComm/SerialPort.java

@@ -764,7 +764,6 @@ public final class SerialPort
 				throw new IOException("This port appears to have been shutdown or disconnected.");
 			
 			return read(b, 0, b.length);
-			
 		}
 		
 		@Override

src/test/java/com/fazecast/jSerialComm/SerialPortTest.java

@@ -43,7 +43,7 @@ public class SerialPortTest
 		System.out.println("\nPorts:\n");
 		for (int i = 0; i < ports.length; ++i)
 			System.out.println("   " + ports[i].getSystemPortName() + ": " + ports[i].getDescriptivePortName());
-		SerialPort ubxPort = ports[1];
+		SerialPort ubxPort = ports[0];
 		
 		byte[] readBuffer = new byte[2048];
 		System.out.println("\nOpening " + ubxPort.getDescriptivePortName() + ": " + ubxPort.openPort());