10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition.
#Body
function1()
{
if
then
echo "exist"
else
echo "not exist"
}
#if not exist in function1 my all other function will not proceed.... (4 Replies)
Discussion started by: meister29
4 Replies
2. Shell Programming and Scripting
Dear All.
I have a script, which process files one by one. In the script I have two functions.
one sftp files to different server
the other from existing file create file with different name.
My question is:
Will sftp function recognize files names , which are created in another... (1 Reply)
Discussion started by: digioleg54
1 Replies
3. Shell Programming and Scripting
I have a script which does gunzip, zip and untar.
Input to the script is file name and file directory (where file is located)
I am reading the input parameters as follows:
FILENAME=$1
FILEDIR=$2
I have created 3 functions that are as follows:
1) gunzip file
2) unzip file... (2 Replies)
Discussion started by: pinnacle
2 Replies
4. Programming
In gdb, I can call one function with command "call", but how can I step in the function? I don't want to restart the program, but the function had been executed, gdb will execute next statement, and I don't know how to recall the function. (4 Replies)
Discussion started by: 915086731
4 Replies
5. Programming
Hi...
this simple code has warning messages but it work..
void *th(void *g){
int y = 10;
pthread_exit((void*)y);
}
int main(int argn, char ** argp){
void * ret;
pthread_t thread;
pthread_create(&thread, NULL, th, NULL);
pthread_join(thread,... (10 Replies)
Discussion started by: prompt
10 Replies
6. Shell Programming and Scripting
This is my function which is creating three variables based on counter & writing these variable to database by calling another function writeRecord
but only one record is getting wrote in DB.... Please advise ASAP...:confused:
function InsertFtg
{
FTGSTR=""
echo "Saurabh is GREAT $#"
let... (2 Replies)
Discussion started by: omkar.sonawane
2 Replies
7. Programming
Main function creates Thread0 and Thread1 by using pthread_create systemcall.
In Thread0() {
we are calling pthread_exit(0) ;
}
and in Thread1() {
status= pthread_join(tid,NULL);
sprintf(ebuf,"timer6: can't join with thread0, status: %d",status);
Assert(status==0,ebuf);
}
... (4 Replies)
Discussion started by: mansa
4 Replies
8. Linux
Hello All,
The problem i'm experiencing is with the following code:
#include <pthread.h>
#include <stdio.h>
int main(void)
{
(void) pthread_join(155555, NULL);
printf("done");
return 0;
}
I'm getting on terminal segmentation fault .
System used:... (0 Replies)
Discussion started by: crocodil
0 Replies
9. Shell Programming and Scripting
Hi ,
I have three funcions f1, f2 and f3 .
f1 calls f2 and f2 calls f3 .
I have a global variable "period" which i want to pass to f3 .
Can i pass the variable directly in the definition of f3 ?
Pls help .
sars (4 Replies)
Discussion started by: sars
4 Replies
10. UNIX for Dummies Questions & Answers
I would like to write my own version of pthread_join and some of the other pthread function. Does some know any pages that have som examples of doing this?? (1 Reply)
Discussion started by: bigblop
1 Replies
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 *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.
CONFORMING TO
POSIX.1-2001.
NOTES
After a successful call to pthread_join(), the caller is guaranteed that the target thread has terminated.
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 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2008-11-27 PTHREAD_JOIN(3)