02-29-2012
You limit it by not forking when there's too many...
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10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Is there a way to monitor certain processes and if they hang too long to kill them, but certain scripts which are expected to take a long time to let them go?
Thank you
Richard (4 Replies)
Discussion started by: ukndoit
4 Replies
2. Programming
Hello,
How many child processes are actually created when running this code ?
#include <signal.h>
#include <stdio.h>
int main () {
int i ;
setpgrp () ;
for (i = 0; i < 10; i++) {
if (fork () == 0) {
if ( i & 1 ) setpgrp () ;
printf ("Child id: %2d, group: %2d\n", getpid(),... (0 Replies)
Discussion started by: green_dot
0 Replies
3. Shell Programming and Scripting
Hello,
How many child processes are actually created when running this code ?
#include <signal.h>
#include <stdio.h>
int main () {
int i ;
setpgrp () ;
for (i = 0; i < 10; i++) {
if (fork () == 0) {
if ( i & 1 ) setpgrp () ;
printf ("Child id: %2d, group: %2d\n",... (1 Reply)
Discussion started by: green_dot
1 Replies
4. Solaris
Hi
Is there an easy way to identify and group currently running processes into OS processes and APP processes. Not all applications are installed as packages.
Any free tools or scripts to do this?
Many thanks. (2 Replies)
Discussion started by: wilsonee
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5. SCO
Dear experts,
I have done a re-installation of sco unix openserver 5.0.5 and managed to create users. The problem am facing is that of one user logging in more than 5 times. How can i overcome this problem. the system give the error below.
-sh: fork failed - too many processes in sco unix... (5 Replies)
Discussion started by: njoroge
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6. UNIX for Dummies Questions & Answers
Disclaimer: This is just a rainy day experiment. There is no expected "goal" other than to understand UNIX better.
After reading about fork and exec, my understanding is that forking, as the UNIX shell does by design, consequentially may sacrafice some speed versus an approach that runs in... (1 Reply)
Discussion started by: uiop44
1 Replies
7. Programming
Hi friends,
I have a small question regarding unix system call fork, I hope you will solve my problem. Here is the small program
$ cat fork1.c
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
int pid;
int x = 0;
x = x + 1;
pid = fork();
if(pid < 0)
{... (2 Replies)
Discussion started by: gabam
2 Replies
8. Programming
Hello people
I need help
How to make ONE process to create MORE (not one) processes with fork(). I tried several codes but do not work.
Thanks (8 Replies)
Discussion started by: nekoj
8 Replies
9. Programming
Hi guys!
I'll simplify my problem. I have the following code:
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/wait.h>
#define max 25
#define buffdim 50
void p1();
void p2();... (2 Replies)
Discussion started by: pfpietro
2 Replies
10. Shell Programming and Scripting
Can anyone help me with this?
Create a parent process that gets from the command line n arguments arg1, arg2, ... , argn.
The parent will create n/3 son processes, each of them will create a file with the name argi by concatenate the files argi+1 and argi+2.
How can i concatenate those... (1 Reply)
Discussion started by: bunicu01
1 Replies
LEARN ABOUT HPUX
pthread_join
pthread_join(3T) pthread_join(3T)
NAME
pthread_join() - wait for the termination of a specified thread
SYNOPSIS
PARAMETERS
thread Thread whose termination is awaited by the caller.
value_ptr Pointer to the location where the exit status of thread is returned.
DESCRIPTION
The function waits for the termination of the target thread. If the target thread has already terminated, this function returns immedi-
ately. Only threads created with a detachstate attribute value of may be specified in the target thread parameter. On successful return
from the value_ptr argument, if it is not a null pointer, will contain the value passed to by the terminating thread.
When a call returns successfully, the caller is guaranteed the target thread has terminated. If more than one thread calls for the same
target thread, one thread is guaranteed to return successfully. Undefined behavior results for other callers specifying the same thread.
If the thread calling is canceled, the target thread shall not be joined. The exit status of the target thread will remain available for
another thread to call
If the target thread was canceled, its exit status is
It is unspecified whether a thread that has exited, but remains unjoined, counts against the limit.
RETURN VALUE
Upon successful completion, returns zero. Otherwise, an error number is returned to indicate the error (the variable is not set).
ERRORS
If any of the following occur, the function returns the corresponding error number:
[EINVAL] The value specified by thread does not refer to a joinable thread.
[ESRCH] No thread could be found corresponding to thread.
For each of the following conditions, if the condition is detected, the function returns the corresponding error number:
[EDEADLK] This operation would result in process deadlock or thread specifies the calling thread.
AUTHOR
was derived from the IEEE POSIX P1003.1c standard.
SEE ALSO
pthread_create(3T), wait(2).
STANDARDS CONFORMANCE
Pthread Library pthread_join(3T)