03-25-2004
I gave it some thought, and based on your reply I would like to do the following: "the parent could create a pipe with each of them and send a signal whenever you've just sent a command down the pipe"
-- I have to guarantee that when I send the command down the pipe and then the signal, this is all done atomically, I would also like to use semaphores to guard this section of the code, I do not want to travel the disabling interrupts route or busy waiting.
If this possible can someone point me to some sample code or resources for all tasks, creation of pipes and writing commands to it, signaling the process and using semaphores.
Thank you.
FI
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LEARN ABOUT XFREE86
setsid
SETSID(1) User Commands SETSID(1)
NAME
setsid - run a program in a new session
SYNOPSIS
setsid [options] program [arguments]
DESCRIPTION
setsid runs a program in a new session. The command calls fork(2) if already a process group leader. Otherwise, it executes a program in
the current process.
OPTIONS
-c, --ctty
Set the controlling terminal to the current one.
-w, --wait
Wait for the execution of the program to end, and return the exit value of this program as the return value of setsid.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
SEE ALSO
setsid(2)
AUTHOR
Rick Sladkey <jrs@world.std.com>
AVAILABILITY
The setsid command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2014 SETSID(1)