Air_Quality_Sensor_PPD42/resources/MSP-EXP430G2 Software Examples/Source/OutOfBox_MSP-EXP430G2/Processing Library Sources/rxtx-2.1-7r2/CNI

/*-------------------------------------------------------------------------
|   rxtx is a native interface to serial ports in java.
|   Copyright 1997-2004 by Trent Jarvi taj@www.linux.org.uk.
|
|   This library is free software; you can redistribute it and/or
|   modify it under the terms of the GNU Library General Public
|   License as published by the Free Software Foundation; either
|   version 2 of the License, or (at your option) any later version.
|
|   This library is distributed in the hope that it will be useful,
|   but WITHOUT ANY WARRANTY; without even the implied warranty of
|   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
|   Library General Public License for more details.
|
|   You should have received a copy of the GNU Library General Public
|   License along with this library; if not, write to the Free
|   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--------------------------------------------------------------------------*/
This is README
Wed Feb 19 06:33:17 EST 2003


STATUS:

	1)	OS's The library has been tested on redhat 8.0 glinux
		write writes and read reads.  Little else has been
		tested but things should work.

	2)  TODO:

		- test on other Unix Like systems
		- bring termios.c over to give win32 support
		- autoconf to determine include files

INTRODUCTION

CNI is a new way of mixing Java and native code used by the GNU gcj compiler.
The CNI is a faster way to have native and Java code interact.  One can
build fast, stand alone applications using this code.

Possible applications include low latency, embeded and use with other native
projects.

This directory contains an initial hack at getting rxtx (www.rxtx.org) working
with the the GNU gcj using the CNI.


Links:

	http://www.rxtx.org
	http://gcc.gnu.org/java
	http://gcc.gnu.org/java/papers/cni/t1.html

BUILDING

There isn't much here besides the library.  To get started, make sure you have gcj
installed.

	make  # build the library and Simple -- a small application
	./Simple  runs the test application.

If there is a loopback on /dev/ttyS1, The Simple application will write to
the port and then read back the data.

If you get "undefined reference to `function_name' you are missing a library


EXAMPLE

Script started on Wed Feb 19 06:16:07 2003
[root@servertrent CNI]# make

rm -f Simple.java

gcj -d . -C *.java

for i in gnu/io/*.class;do gcjh -d . `echo $i|sed s/.class//g`;done

g++ -Wall -g -O2 -D_POSIX_SOURCE -D_BSD_SOURCE -D__need_timespec -O2 -D_POSIX_SOURCE -D_BSD_SOURCE -D__need_timespec -I . -c SerialImp.c

SerialImp.c: In member function `void 

   gnu::io::RXTXPort::writeArray(JArray<jbyte>*, __java_int, __java_int, 

   __java_boolean)':

SerialImp.c:1376: warning: label `fail' defined but not used

g++ -Wall -g -O2 -D_POSIX_SOURCE -D_BSD_SOURCE -D__need_timespec -O2 -D_POSIX_SOURCE -D_BSD_SOURCE -D__need_timespec -I . -c fuserImp.c

(cd gnu/io && gcj -g -classpath ../.. -d gnu/io -c *.class )

g++ -g -shared gnu/io/*.o *.o -lpthread  -Wl,-soname -Wl,librxtx-0.0-1.so -o librxtx-0.0-1.so

rm -f librxtx.so && ln -s librxtx-0.0-1.so librxtx.so

ar rs librxtx.a  gnu/io/*.o *.o

g++ -g -Wall test.c -static -L. -lrxtx  -lgcj -lpthread -ldl -lz -o test

#gcj *.o librxtx.a -static  -lgcj -lpthread -ldl -lz -o Simple --main=Simple

ln -s Simple.Java Simple.java

gcj --classpath RXTX.jar  -d . -C Simple.java

rm Simple.java

gcj -g -classpath RXTX.jar -d . -c Simple.class

gcj -g *.o gnu/io/*.o -static  -lgcj -lpthread -ldl -lz -o Simple --main=Simple

[root@servertrent CNI]# ./Simple

Getting PortIdentifiers

Devel Library

=========================================

Native lib Version = RXTX-2.1-7

Java lib Version   = RXTX-2.1-7

RXTX Warning:  Removing stale lock file. /var/lock/LCK..ttyS1

writing output

Got Data Available

Printing read() results

123456789�

[root@servertrent CNI]# file Simple

Simple: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, not stripped

[root@servertrent CNI]# exit

exit


Script done on Wed Feb 19 06:16:35 2003
--
Trent Jarvi
taj@www.linux.org.uk