regress/lib/libpthread/name/name.c

   1 /*      $NetBSD: name.c,v 1.1 2003/02/26 22:05:03 thorpej Exp $ */
   2
   3 #include <assert.h>
   4 #include <err.h>
   5 #include <errno.h>
   6 #include <pthread.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11
  12 void *threadfunc(void *arg);
  13
  14 #define NAME_TOO_LONG   "12345678901234567890123456789012"      /* 32 chars */
  15 #define NAME_JUST_RIGHT "1234567890123456789012345678901"       /* 31 chars */
  16
  17 #define CONST_NAME      "xyzzy"
  18 char non_const_name[] = CONST_NAME;
  19
  20 int
  21 main(int argc, char *argv[])
  22 {
  23         pthread_t thr, self = pthread_self();
  24         pthread_attr_t attr;
  25         char retname[32];
  26         int ret;
  27
  28         pthread_attr_init(&attr);
  29         assert(0 == pthread_attr_getname_np(&attr, retname, sizeof(retname),
  30             NULL));
  31         assert(retname[0] == '\0');
  32         assert(EINVAL == pthread_attr_setname_np(&attr, NAME_TOO_LONG, NULL));
  33         assert(0 == pthread_attr_setname_np(&attr, "%s", NAME_JUST_RIGHT));
  34
  35         strcpy(retname, "foo");
  36         assert(0 == pthread_getname_np(self, retname, sizeof(retname)));
  37         assert(retname[0] == '\0');
  38
  39         ret = pthread_create(&thr, &attr, threadfunc, NULL);
  40         if (ret != 0)
  41                 err(1, "pthread_create");
  42
  43         ret = pthread_join(thr, NULL);
  44         if (ret != 0)
  45                 err(1, "pthread_join");
  46
  47         assert(ESRCH == pthread_getname_np(thr, retname, sizeof(retname)));
  48
  49         return 0;
  50 }
  51
  52 void *
  53 threadfunc(void *arg)
  54 {
  55         pthread_t self = pthread_self();
  56         char retname[32];
  57
  58         assert(0 == pthread_getname_np(self, retname, sizeof(retname)));
  59         assert(0 == strcmp(retname, NAME_JUST_RIGHT));
  60
  61         assert(0 == pthread_setname_np(self, non_const_name, NULL));
  62         memset(non_const_name, 0, sizeof(non_const_name));
  63         assert(0 == pthread_getname_np(self, retname, sizeof(retname)));
  64         assert(0 == strcmp(retname, CONST_NAME));
  65
  66         return NULL;
  67 }