03-25-2005
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Suppose we have the following process tree:
init-> ProcessA->processB->processC
then I kill processB
Who is the parent of the processC?
init or the processA (6 Replies)
Discussion started by: Puntino
6 Replies
2. Programming
We are forking a process B from process A and the process B should display the details it reads from process C(daemon process) continuously.
Let us say that the process C sents 100 packets.The process B receives all the 100 packets from the process C before it prints all details of 31... (1 Reply)
Discussion started by: cijkmysj
1 Replies
3. Solaris
hi,
i am creating a daemon process for updating the file at regular interval.one problem with this is if anybody kills the daemon it wont update the file.anybody have idea how to rerun the daemon if it killed.the code is written in c++ in solaries environment.
thnaks & regards
suresh (8 Replies)
Discussion started by: suresh_rtp
8 Replies
4. Shell Programming and Scripting
I have this shell script and in case the sybase process is been killed how can identify whether the process was killed or not, as the error code always returns 0.
#!/bin/sh
isql -S SERVER -U user -P pass<<TOP
select * from tableName
go
TOP
echo $? (2 Replies)
Discussion started by: dinjo_jo
2 Replies
5. Solaris
Hi all,
Currently I am using LDAP to store some network related data, When I run following script
./ns-slapd ldif2db
Execution of above script terminates displaying "Killed" on the console.
As far as I know, a process can be killed by two ways-
1. manually running " kill -9 <PID of LDAP... (1 Reply)
Discussion started by: akash_mahakode
1 Replies
6. UNIX for Dummies Questions & Answers
HI all,
I am very new to AIX (matter of fact Unix). We are currently automating out manual process using Unix Shell Scripting.
My wrote a shell script which will accept the name of the sas job as parameter, checks the existense of the sas file in the specified folder.
If it is not present,... (1 Reply)
Discussion started by: anubhav2020
1 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I have a process which takes 13-15 mins for execution and its getting killed in the meantime.So can you please helpme out how to protect the process from getting killed.
Thanks in advance.
Regards,
Harika (9 Replies)
Discussion started by: harikagrp
9 Replies
8. UNIX for Dummies Questions & Answers
Hi reader,
I'm making a tool out of korn shell script that is running on a HP-UX server. But everytime i invoke the tool, it gets killed after a while (mid-process). I have tried re-running it a couple of times but each invocation ending up the same way ..
following is a snippet of the o/p... (8 Replies)
Discussion started by: clakkad
8 Replies
9. Shell Programming and Scripting
Hi,all.Well,I know someone has already asked this question before,however,It's too long before.So i post a new thread here.
Here is the issue.I have a shell script that use awk to calculate something and the script takes about 15 mins,it will use 100% CPU,and the system automatically killed the... (2 Replies)
Discussion started by: homeboy
2 Replies
10. Shell Programming and Scripting
I have two set of questions.
1) To skip killing some process automatically.
2) To kill other process and capture their log.
I have set of process, some needs to be killed gracefully and others should be skipped.
Listed are the process.
adm 1522... (1 Reply)
Discussion started by: murali1687
1 Replies
LEARN ABOUT MINIX
pthread_join
PTHREAD_JOIN(3) Linux Programmer's Manual PTHREAD_JOIN(3)
NAME
pthread_join - join with a terminated thread
SYNOPSIS
#include <pthread.h>
int pthread_join(pthread_t thread, void **retval);
Compile and link with -pthread.
DESCRIPTION
The pthread_join() function waits for the thread specified by thread to terminate. If that thread has already terminated, then
pthread_join() returns immediately. The thread specified by thread must be joinable.
If retval is not NULL, then pthread_join() copies the exit status of the target thread (i.e., the value that the target thread supplied to
pthread_exit(3)) into the location pointed to by retval. If the target thread was canceled, then PTHREAD_CANCELED is placed in the loca-
tion pointed to by retval.
If multiple threads simultaneously try to join with the same thread, the results are undefined. If the thread calling pthread_join() is
canceled, then the target thread will remain joinable (i.e., it will not be detached).
RETURN VALUE
On success, pthread_join() returns 0; on error, it returns an error number.
ERRORS
EDEADLK
A deadlock was detected (e.g., two threads tried to join with each other); or thread specifies the calling thread.
EINVAL thread is not a joinable thread.
EINVAL Another thread is already waiting to join with this thread.
ESRCH No thread with the ID thread could be found.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+---------------+---------------+---------+
|Interface | Attribute | Value |
+---------------+---------------+---------+
|pthread_join() | Thread safety | MT-Safe |
+---------------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
NOTES
After a successful call to pthread_join(), the caller is guaranteed that the target thread has terminated. The caller may then choose to
do any clean-up that is required after termination of the thread (e.g., freeing memory or other resources that were allocated to the target
thread).
Joining with a thread that has previously been joined results in undefined behavior.
Failure to join with a thread that is joinable (i.e., one that is not detached), produces a "zombie thread". Avoid doing this, since each
zombie thread consumes some system resources, and when enough zombie threads have accumulated, it will no longer be possible to create new
threads (or processes).
There is no pthreads analog of waitpid(-1, &status, 0), that is, "join with any terminated thread". If you believe you need this function-
ality, you probably need to rethink your application design.
All of the threads in a process are peers: any thread can join with any other thread in the process.
EXAMPLE
See pthread_create(3).
SEE ALSO
pthread_cancel(3), pthread_create(3), pthread_detach(3), pthread_exit(3), pthread_tryjoin_np(3), pthreads(7)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 PTHREAD_JOIN(3)