03-09-2004
synchronize as in java
Hi,
I am trying to implement the synchronize feature of java using C. I am using a semaphore for the same. I have a wrapper called "synch" to which I pass the function pointer(any_fn). This pointer points to the function (my_fn) which needs to be synchronized.
However to create the semaphore I need to pass a semkey which should be a indicative of the function (my_fn). I cannot use the address of this function (my_fn) because every binary will execute in its own address space and the pointer will always be different, and hence the semkey will also be different.
Can anyone help me generate this semkey.
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LEARN ABOUT DEBIAN
airport2-ipinspector
AIRPORT2-IPINSPECTOR(1) General Commands Manual AIRPORT2-IPINSPECTOR(1)
NAME
airport2-ipinspector - WAN monitoring utility for the Apple AirPort Extreme Base Station ("Snow")
SYNOPSIS
airport2-ipinspector
DESCRIPTION
airport2-ipinspector monitors the WAN interface of the base station and sends an email notification whenever the external (WAN) IP address
of the base station changes.
OPTIONS
airport2-ipinspector accepts no command-line options. airport2-ipinspector is a wrapper script around the IPInspector.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
airport2-ipinspector 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 AIRPORT2-IPINSPECTOR(1)