pthread_create and EAGAIN

Question

I got an EAGAIN when trying to spawn a thread using pthread_create. However, from what I\'ve checked, the threads seem to have been terminated properly.

What determi

Answer 1

As per my observation if one of the parent process calls pthread_join(), and chilled processes are trying to release the thread by calling pthread_exit() or pthread_cancel() then system is not able to release that thread properly. In that case, if pthread_detach() is call immediately after successful call of pthread_create() then this problem has been solved. A snapshot is here -

err = pthread_create(&(receiveThread), NULL, &receiver, temp);
if (err != 0)
{
 MyPrintf("\nCan't create thread Reason : %s\n ",(err==EAGAIN)?"EAGAUIN":(err==EINVAL)?"EINVAL":(err==EPERM)?"EPERM":"UNKNOWN");
    free(temp);
}
else
{
    threadnumber++;
    MyPrintf("Count: %d Thread ID: %u\n",threadnumber,receiveThread);
    pthread_detach(receiveThread);
}