tools/tests/xnu_quick_test/atomic_fifo_queue_test.c

   1 #if defined(i386) || defined(__x86_64__)
   2
   3 #include <libkern/OSAtomic.h>
   4 #include <stdio.h>
   5 #include <string.h>
   6 #include <err.h>
   7
   8 typedef struct {
   9         void *next;
  10         char *str;
  11 } QueueNode;
  12
  13 int atomic_fifo_queue_test( void *the_argp ) {
  14         OSFifoQueueHead head = OS_ATOMIC_FIFO_QUEUE_INIT;
  15         char *str1 = "String 1", *str2 = "String 2";
  16         QueueNode node1 = { 0, str1 };
  17         OSAtomicFifoEnqueue(&head, &node1, 0);
  18         QueueNode node2 = { 0, str2 };
  19         OSAtomicFifoEnqueue(&head, &node2, 0);
  20         QueueNode *node_ptr = OSAtomicFifoDequeue(&head, 0);
  21         if( strcmp(node_ptr->str, str1) != 0 ) {
  22                 warnx("OSAtomicFifoDequeue returned incorrect string. Expected %s, got %s", str1, node_ptr->str);
  23                 return 1;
  24         }
  25         node_ptr = OSAtomicFifoDequeue(&head, 0);
  26         if( strcmp(node_ptr->str, str2) != 0 ) {
  27                 warnx("OSAtomicFifoDequeue returned incorrect string. Expected %s, got %s", str2, node_ptr->str);
  28                 return 1;
  29         }
  30         return 0;
  31 }
  32
  33 #endif