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Full Discussion: forking a new process
Top Forums Programming forking a new process Post 302077027 by blowtorch on Sunday 18th of June 2006 10:49:02 PM
Old 06-18-2006
Well, you can use execl, but in that case, you cannot use the $JAVAHOME env variable. You need to get the value from the env using something like getenv() and create the complete path.

The fork-exec part of the code can look like this (assuming that the path to the java command is /usr/jre/bin):
Code:
pid=fork();
if(pid==-1) {
   perror("error in fork!");
}
if(!pid) { /*child process - execute the java command*/
   execl("/usr/jre/bin/java","java","-cp","/opt/mv36/em/SMD/data/jct_005/SMD_LCT.jar:/opt/mv36/em/SMD/data/jct_005/jh.jar:/nms/JamToolsTest/jct/MV36CoreProxyNOP.1.1.jar","com.marcx.lct.sma11d.sma11d_lct_applet","-mv36","1","-host","19.3.11.13","-port","20020","-inifile","/opt/mv36/em/SMD/data/jct_005/","-lang","1","-laf","0","-msgset","5","-emaccess","3","-command","221",(char*)0)
}
else { /*in parent process - wait for child to exit*/
   wait();
}

 

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LEARN ABOUT DEBIAN

airport-config

AIRPORT-CONFIG(1)					      General Commands Manual						 AIRPORT-CONFIG(1)

NAME

       airport-config - Configurator for the original Apple AirPort Base Station ("Graphite") and the Lucent RG-1000 base station

SYNOPSIS

       airport-config

DESCRIPTION

       airport-config allows you to manage your AirPort base station, just like the AirPort software on Mac OS X.

OPTIONS

       airport-config  accepts	no command-line options. airport-config is a wrapper script around the AirportBaseStationConfigurator.jar jar file
       located in /usr/share/java/airport-utils.

       You can set the JAVACMD environment variable to use a specific JVM instead of the one chosen by the wrapper script. Set the DEBUG  environ-
       ment variable to 1 to get the debug output from the wrapper script.

ENVIRONMENT VARIABLES

       DEBUG  Set this variable to 1 to get the debug output from the wrapper script.

       JAVACMD
	      The  full  path  to  the	Java  Virtual  Machine	to  use.  By  default,	the  wrapper  uses JAVACMD; if it is not set, it looks for
	      JAVA_BINDIR/java, then for JAVA_HOME/bin/java before looking for a java executable in the PATH. In the latter case, the JVM used can
	      be configured using the Debian alternatives system (see update-alternatives(8)).

       JAVA_HOME
	      The full path where your JDK/JRE is installed.

       JAVA_BINDIR
	      The full path to the directory where the java executable is located.

       JAVA_ARGS
	      Extra command-line arguments to be passed to the Java Virtual Machine.

AUTHOR

       airport-config was written by Jon Sevy <jsevy@cs.drexel.edu>.

       This manual page was written by Julien BLACHE <jblache@debian.org>, for the Debian project (but may be used by others).

								   May 20, 2006 						 AIRPORT-CONFIG(1)
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