10 More Discussions You Might Find Interesting
1. Programming
I have a while loop like so:
while (counter (file1));
how can I pass that into a pthread_create()?
I was thinking ...
while(pthread_create(&path, NULL, counter, file));
is that right? (1 Reply)
Discussion started by: l flipboi l
1 Replies
2. Programming
I have written a C code and when i compile it there are 0 warnings and 0 errors, but when i try to run apears:
./client: symbol lookup error: ./client: undefined symbol: pthread_create, version GLIBC_2.1
the part of the code where i have the pthread_creat is:
int serverConection(int... (5 Replies)
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3. Ubuntu
Hi all,
I wrote some code in c, using pthread (I configured the linker and compiler in eclipse IDE first).
#include <pthread.h>
#include "starter.h"
#include "UI.h"
Page* MM;
Page* Disk;
PCB* all_pcb_array;
void* display_prompt(void *id){
printf("Hello111\n");
return... (1 Reply)
Discussion started by: elad2109
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4. UNIX for Advanced & Expert Users
I am so confused about the user threads and kernel threads.Suppose I created a thread using pthread create call in Linux ,whether it will be a user thread or kernel thread.If it user thread,then how its map to kernel thread.
I heard about the M:1,M:N,1:1 mapping methods.Which method linux is... (1 Reply)
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5. Programming
problem solved
edited, sorry (1 Reply)
Discussion started by: joey
1 Replies
6. UNIX for Dummies Questions & Answers
Hello,
I run my pthread code on Linux with 4 processors. However, the speed up is only 2 times.
The code is about solving equation (G+s(i)C)z(i)=B*us(i), i=1,...,n. Here G,C are m*m matrix, B*us(i) is a m*1 vector and s(i) are n different numbers. I need to solve the equation n times to... (2 Replies)
Discussion started by: mgig
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7. Solaris
Hi all!
I am working on unix systems.I am programming in c.
I have got some problems with pthread.when I use pthread_create to creat a thread it says:
(.text+0x3a): undefined reference to `pthread_create'.
same is the problm with pthread_kill.
Can anyone help me out here.
Thanks.
vij. (2 Replies)
Discussion started by: vijlak
2 Replies
8. UNIX for Dummies Questions & Answers
When I use some of the pthread functions: pthread_join, pthread_exit they work perfect. But when I look in the pthread.h file I can't seem to find any implementations of the functions...where are they hiding?? (2 Replies)
Discussion started by: bigblop
2 Replies
9. Programming
hallo 2 al
can anyone pls tell me where and how can i find and install the pthread.h lib ?
thx :cool: (2 Replies)
Discussion started by: XinU*
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10. Programming
Can someone point to a link where I can get good info about pthread?
thanx.. :) (1 Reply)
Discussion started by: jyotipg
1 Replies
pthread_join(3C) Standard C Library Functions pthread_join(3C)
NAME
pthread_join - wait for thread termination
SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ]
#include <pthread.h>
int pthread_join(pthread_t thread, void **status);
DESCRIPTION
The pthread_join() function suspends processing of the calling thread until the target thread completes. thread must be a member of the
current process and it cannot be a detached thread. See pthread_create(3C).
If two or more threads wait for the same thread to complete, all will suspend processing until the thread has terminated, and then one
thread will return successfully and the others will return with an error of ESRCH. The pthread_join() function will not block processing of
the calling thread if the target thread has already terminated.
If a pthread_join() call returns successfully with a non-null status argument, the value passed to pthread_exit(3C) by the terminating
thread will be placed in the location referenced by status.
If the pthread_join() calling thread is cancelled, then the target thread will remain joinable by pthread_join(). However, the calling
thread may set up a cancellation cleanup handler on thread prior to the join call, which may detach the target thread by calling
pthread_detach(3C). See pthread_detach(3C) and pthread_cancel(3C).
RETURN VALUES
If successful, pthread_join() returns 0. Otherwise, an error number is returned to indicate the error.
ERRORS
EDEADLK A joining deadlock would occur, such as when a thread attempts to wait for itself.
EINVAL The thread corresponding to the given thread ID is a detached thread.
ESRCH No thread could be found corresponding to the given thread ID.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
pthread_cancel(3C), pthread_create(3C), pthread_detach(3C), pthread_exit(3C), wait(3C), attributes(5), standards(5)
NOTES
The pthread_join(3C) function must specify the thread ID for whose termination it will wait.
Calling pthread_join() also "detaches" the thread; that is, pthread_join() includes the effect of the pthread_detach() function. If a
thread were to be cancelled when blocked in pthread_join(), an explicit detach would have to be performed in the cancellation cleanup han-
dler. The pthread_detach() function exists primarily for this purpose.
SunOS 5.11 23 Mar 2005 pthread_join(3C)
