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-rw-r--r--linuxthreads/Examples/ex18.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/linuxthreads/Examples/ex18.c b/linuxthreads/Examples/ex18.c
deleted file mode 100644
index 283396bede..0000000000
--- a/linuxthreads/Examples/ex18.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Beat up the pthread_key_create and pthread_key_delete
- * functions.
- */
-
-#if 0
-#define CHATTY
-#endif
-
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <pthread.h>
-#include <unistd.h>
-
-const int beatup_iterations = 10000;
-const int num_threads = 30;
-const int max_keys = 500;
-
-struct key_list {
-  struct key_list *next;
-  pthread_key_t key;	
-};
-
-struct key_list *key_list;
-pthread_mutex_t key_lock = PTHREAD_MUTEX_INITIALIZER;
-
-/*
- * Create a new key and put it at the tail of a linked list.
- * If the linked list grows to a certain length, delete a key from the
- * head of * the list. 
- */
-
-static void 
-beat_up(void)
-{
-  struct key_list *new = malloc(sizeof *new);
-  struct key_list **iter, *old_key = 0;
-  int key_count = 0;
-
-  if (new == 0) {
-    fprintf(stderr, "malloc failed\n");
-    abort();
-  }
-
-  new->next = 0;
-
-  if (pthread_key_create(&new->key, 0) != 0) {
-    fprintf(stderr, "pthread_key_create failed\n");
-    abort();
-  }
-
-  if (pthread_getspecific(new->key) != 0) {
-    fprintf(stderr, "new pthread_key_t resolves to non-null value\n");
-    abort();
-  }
-
-  pthread_setspecific(new->key, (void *) 1);
-
-#ifdef CHATTY
-  printf("created key\n");
-#endif
-
-  pthread_mutex_lock(&key_lock);
-
-  for (iter = &key_list; *iter != 0; iter = &(*iter)->next)
-    key_count++;
-
-  *iter = new;
-
-  if (key_count > max_keys) {
-    old_key = key_list;
-    key_list = key_list->next;
-  }
-
-  pthread_mutex_unlock(&key_lock);
-
-  if (old_key != 0) {
-#ifdef CHATTY
-    printf("deleting key\n");
-#endif
-    pthread_key_delete(old_key->key);
-  }
-}
-
-static void *
-thread(void *arg)
-{
-  int i;
-  for (i = 0; i < beatup_iterations; i++) 
-    beat_up();
-  return 0;
-}
-
-int
-main(void)
-{
-  int i;
-  pthread_attr_t detached_thread;
-
-  pthread_attr_init(&detached_thread);
-  pthread_attr_setdetachstate(&detached_thread, PTHREAD_CREATE_DETACHED);
-
-  for (i = 0; i < num_threads; i++) {
-    pthread_t thread_id;
-    while (pthread_create(&thread_id, &detached_thread, thread, 0) == EAGAIN) {
-      /* let some threads die, so system can breathe. :) */
-      sleep(1);
-    }
-  }
-
-  pthread_exit(0);
-}