Need help on Pthead_create

[Krishna, Samaga]

Hi

 

I do not know whether it is bug or some thing wrong with my system

 

I am using GUN DDD 3.2.1 (i686-pc-linux-gnu)

Compiling the code using gcc ( 2.96)

 

I had written a function using pthread_create. If I run this with out using the ddd I could run the function in a loop for 2000 times. But when I use the ddd after 1010 times the pthread_create will return an error and program exits. It is due to non availability of threads. I wonder how a code can run well with our ddd  and using ddd has issues.

 

Do help me out to figure the problem

 

Thanks in advance

Prasanna

 

The code I had written is as follows

 

#include<stdio.h>

#include<pthread.h>

#include<error.h>

int num=0;

 

void returnFun()

{

            int retval;

            printf("The function is called =%d times\n", num++);

}

 

main()

{

 

    pthread_t   tid;

    pthread_attr_t attr;

    int i;

   

    printf("This is a function to test Pthread_create and exit functions\n");

 

    for(i=0;i<2000;i++)

    {

            if(pthread_attr_init(&attr) != 0)

            {

                        printf("Failed to initialize thread attributes for the new thread!\n");

                        return;

            }

            if(pthread_attr_setschedpolicy(&attr,0) != 0)

            {

                   printf("failed to initialize set the scheduling policy for the new thread!\n");

                        return;

            }

           

            pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);

 

            if(pthread_create(&tid,&attr, (void*)&returnFun,NULL) != 0)

            {

                        printf("not enough resources to create the thread!\n");

                                    return;

              

            }

           

      }

           

}