Parallel Processing Detection and Program Return Value Detection Post: 302535729

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Top Forums Programming Parallel Processing Detection and Program Return Value Detection Post 302535729 by Corona688 on Friday 1st of July 2011 01:13:50 PM

07-01-2011

Registered User

Quote:

Originally Posted by azar.zorn

is it possible to tell what created the thread or child process?

Try ps -ejT, that should print a process tree. The information ps uses to create this may be available under /proc/. For more detail than that I'd need to know what your system is.

Quote:

or follow the child/thread to find the program it is linked to?

You can do that too! If you're on Linux, strace prints all system calls the program makes as it happens, including the various clone_* ones that Linux uses to create threads or processes. (you'd want to run it with -f so it follows any children it creates in the meantime too.) I think Solaris has dtrace. Other systems I'm not sure.

How to get information on threads would be a lot more system-specific than information on processes.

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pconf_detect

libprinterconf(6)						   Games Manual 						 libprinterconf(6)

NAME

       pconf_detect - A command-line utility for autodetecting printers in Linux

SYNOPSIS

       pconf_detect -m [PPORT|NETWORK] -i <info-string>

DESCRIPTION

       pconf_detect  is  a  command-line  utility  for	autodetecting  printers  from  Linux.  It  is  a  simple  wrapper  around libprinterconf's
       pconf_detect_printer() function.  It currently supports two methods of autodetection: parallel port detection and network detection.

       The detection type is specified with the -m option, which can be followed by one of two	values:  PPORT	or  NETWORK.   Detection  specific
       information is passed following the -i option. For parallel port detection, this will be a comma-separated string of parallel port numbers.

       For network detection, it will be some method of specifying a range of hosts or IP addresses.

       The most common form is "10.203.1.2/24", indicating the IP/bitmask to scan.

       Other  formats include an IP range ("10.203.1.12-30"), an IP/netmask ("10.203.1.2/255.255.255.0"), a simple IP address ("10.203.1.2"), or a
       host name ("myprinter.mydomain.com").

       [Note: Detection of large network subnets can take a significant amount of time.]

       pconf_detect will print out a set of formatted text strings, one for each detected printer.

       The actual format of these strings will depend on the detection method. For parallel port detection, the string will be in the basic  form:
       "port=p;model=m". For a network printer the form is: "printer=hostaddr;vendor=v;model=m".

EXAMPLES

       PPORT example:

	       pconf_detect -m PPORT -i 0,1

       where "0,1" is a comma-separated list of the parallel port to scan.

       NETWORK example:

	       pconf_detect -m NETWORK -i "10.203.1.2/24"

       where "10.203.1.2/24" is the IP/bitmask to scan.

SEE ALSO

       libprinterconf(3)

Printerconf Docs						   12 April 2000						 libprinterconf(6)