I had known that a thread has a stack. But never thought where is this stack lie in the memory?
Well, it should be process stack. But you can set the thread stack to a heap area.
How to do that?
#include "pthread.h"
#include "stdio.h"
#include "unistd.h"
pthread_mutex_t mutex1;
void* foo(void *arg)
{
int arr[1024*8];
int x = 0;
while(x++ < (8*1024) )
{ arr[x] = x; }
pthread_mutex_lock(&mutex1);
puts("Thread created");
pthread_mutex_unlock(&mutex1);
}
int main()
{
int *p;
void *ret;
p = malloc(1024);
free(p);
pthread_attr_t attr;
pthread_attr_setstack(&attr, p, 2);
pthread_t thread1;
pthread_create(&thread1, NULL, foo, NULL);
pthread_join(thread1, &ret);
free(p);
return 0;
}
But still I am a lot to learn…
