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Old 01-27-2003, 03:23 AM   #1
lamvd
LQ Newbie
 
Registered: Jan 2003
Posts: 10

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Question How to program thread in Unix OS??


I use KDevelop(2.1) and write a very simple program below:
#include
#include
#include
#include
void *Dosomething(void* arg)
{
char* str = (char*)agr;
printf(“%s”,str);
pthread_exit(NULL);
}

int main(int argc, char *argv[])
{

pthread_t p_thread;
char *agr = “Hello world”;
pthread_create(&p_thread,NULL, Dosomething,(void*)agr);

return EXIT_SUCCESS;
}

But when I debug the program, I have a serious error. I set a break point in a line 'pthread_create(...);' then start debugging. But the compiler notifies me with a message 'gdb message: Program received signal SIGSEGV,Segmentation fault '. The program is so simple that i can't understand the error. So i need some helps to solve this problem. I also need some documents to program with thread in Linux(Unix) environment.

Thanks very much for yours helps.
 
Old 01-27-2003, 07:50 AM   #2
acid_kewpie
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Registered: Jun 2001
Location: UK
Distribution: Gentoo, RHEL, Fedora, Centos
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http://www.linuxquestions.org/questi...threadid=42910

do not ask the same question more than once, for any reason.
 
Old 01-27-2003, 06:14 PM   #3
finegan
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Registered: Aug 2001
Location: Dublin, Ireland
Distribution: Slackware
Posts: 5,700

Rep: Reputation: 57
Moved, much more appropriate in Programming, also Crabby if you see this one, you might want to merge in the double post from Newbie.

Cheers,

Finegan
 
  


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