9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'm testing out how to use SIGCHLD and I had a question about intercepting the signal and executing an action in the signal handler.
signal(SIGCHLD,countdown);
What I'm trying to achieve is be able to printf(Hello) every second that child is set to sleep.
I'm setting sleep = 3;
so... (1 Reply)
Discussion started by: l flipboi l
1 Replies
2. Programming
Hi. I have a program whose job it is to manage 15 child processes. Sometimes these children die (sometimes deliberately other times with a SEGV). This causes a SIGCHLD to be sent to my program which uses waitpid() in the signal handler to gather information and, in most cases, restart the child.... (3 Replies)
Discussion started by: jrichemont
3 Replies
3. Shell Programming and Scripting
Hi,
The following test case populate an array named: array3.
Since array1 and array2 are equal in length and values array3 will remain empty.
#!/usr/bin/ksh
test() {
set -A array1 "A"
set -A array2 "A"
NUM_1=`echo ${#array1}`
print "num elenemt in NUM_1 is ${NUM_1}"
i=1
for ELE2 in... (1 Reply)
Discussion started by: yoavbe
1 Replies
4. Programming
Hello,
I'd like to know whether it is possible to let the parent know who kills its child process. The case is likely as below:
if there are four processes, we call them A, B, C and D. B is the child of A, and can be killed by both C and D. if B is killed, then A will receive SIGCHLD from B.... (7 Replies)
Discussion started by: aaronwong
7 Replies
5. UNIX for Dummies Questions & Answers
I want to know whicj process send the signal SIGCHLD to the parent's child.
Thank you in advance, (1 Reply)
Discussion started by: Puntino
1 Replies
6. Shell Programming and Scripting
i have installed vmware on a text base linux node
now i have to vmware-configure.pl to do the initial configuration
now 1st step it askes for agreeing for a " License Agreement"
for that i have to say "q" and "yes" to Accept it
i want to run a script with does these 3 steps... (6 Replies)
Discussion started by: pbsrinivas
6 Replies
7. UNIX for Dummies Questions & Answers
When the SIGCHLD is sent?
SIGCHLD is sent either a child exits spontaneously (e.g. exit(0)) or it is killed ?
thank you in advance (3 Replies)
Discussion started by: Puntino
3 Replies
8. Programming
Hi,
I have an c++ application which uses the function fork and execvp().
The parent does not wait until the child ends. The parents just creates children and let them do their stuff.
You can see the parent program as a batch-manager.
I have added a SIGCHLD handler to the program:
void... (3 Replies)
Discussion started by: jens
3 Replies
9. Programming
Hello everybody, this is my first post on this forum. I have a program that has a child process that sleeps for 5 second and exit. I'm suppose to modify this program so that when the child exits, the parent reports the exit status of the child, so I also have to deal with SIGINT and SIGQUIT. Can... (1 Reply)
Discussion started by: Unlimited Sky
1 Replies