_threadstore - Access Thread-Specific Storage

Syntax

#include <stdlib.h>
void *_threadstore(void);

threadstore provides access to a private thread pointer that is initialized to NULL. You can assign any thread-specific data structure to this pointer.
You can only use _threadstore in multithread programs.

threadstore returns the address of the pointer to the defined thread storage space.

This example uses _threadstore to point to storage that is local to the thread. It prints the address pointed to by _threadstore.

#include <stdlib.h>
#include <stdio.h>

#define  privateStore   (*_threadstore())

void thread(void *dummy)
{
   privateStore = malloc(100);
   printf("The starting address of the storage space is %p\n", privateStore);

   /* user must free storage before exiting thread */
   free (privateStore);
   _endthread();
}

int main(void)
{
   int i;

   for (i = 0; i < 10; i++)
      _beginthread(thread, NULL, (unsigned) 32096, NULL);
   DosSleep(5000L);
   return 0;
}

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