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pthread_create problem

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# 1  
Old 02-14-2005
Multithreading in POSIX
Here is simple code for multithreading in POSIX:

Code:
void* simplethread(void* arg)
{
   printf("Hello World\n");
}

int main(void)
{  
   pthread_t id;
 
   pthread_create(&id, NULL, simplethread, NULL);

   return 0;
}

Whether the new thread will run or not depends on the OS. Tricky Smilie .
Last edited by _rocky; 02-15-2005 at 12:19 AM..
# 2  
Old 02-14-2005
Trying your code I get:
$ gcc xthread.c -o xthread
$ ./xthread
hello world
RESULT 0 THREAD 2


^C
$

I had to type CNTL-C because of your "while(1);". What result did you expect?
# 3  
Old 02-14-2005
Laughing out loud, you are doing better than I (Linux):

Code:
www# gcc a.c        
/tmp/cc2Xqv2o.o(.text+0x36): In function `main':
: undefined reference to `pthread_create'
collect2: ld returned 1 exit status

Guess this platform is missing some pthread libbys Smilie
# 4  
Old 02-14-2005
Oh, Neo! I hope you're sitting down!

I was using Microsoft's SFU running on Windows XP! Smilie


But this illustrates an important principle. _rocky, please tell us what OS and compiler you're using.
Last edited by Perderabo; 02-14-2005 at 11:23 PM..
# 5  
Old 02-14-2005
Quote:
Originally Posted by Perderabo
Oh, Neo! I hope you're sitting down!

I was using Microsoft's SFU running on Windows XP! Smilie
.
Perderabo,

I'm shocked! Smilie

Neo

(heading to the wine cellar for a drink!)
# 6  
Old 03-11-2005
HEY neo
try this
gcc -c xthread.c -o xthread -l pthread
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