tests/fs/tmpfs/t_renamerace.c

   1 /*      $NetBSD: t_renamerace.c,v 1.5 2009/04/14 10:19:39 pooka Exp $   */
   2
   3 /*
   4  * Modified for rump and atf from a program supplied
   5  * by Nicolas Joly in kern/40948
   6  */
   7
   8 #include <sys/types.h>
   9 #include <sys/mount.h>
  10
  11 #include <atf-c.h>
  12 #include <errno.h>
  13 #include <fcntl.h>
  14 #include <pthread.h>
  15 #include <stdio.h>
  16 #include <unistd.h>
  17 #include <string.h>
  18
  19 #include <rump/rump.h>
  20 #include <rump/rump_syscalls.h>
  21
  22 #include <fs/tmpfs/tmpfs_args.h>
  23
  24 #include "../../h_macros.h"
  25
  26 ATF_TC(renamerace);
  27 ATF_TC_HEAD(renamerace, tc)
  28 {
  29         atf_tc_set_md_var(tc, "descr", "rename(2) race against files "
  30             "unlinked mid-operation, kern/41128");
  31 }
  32
  33 static void *
  34 w1(void *arg)
  35 {
  36         int fd;
  37
  38         for (;;) {
  39                 fd = rump_sys_open("/rename.test1",
  40                     O_WRONLY|O_CREAT|O_TRUNC, 0666);
  41                 rump_sys_unlink("/rename.test1");
  42                 rump_sys_close(fd);
  43         }
  44         return NULL;
  45 }
  46
  47 static void *
  48 w2(void *arg)
  49 {
  50
  51         for (;;) {
  52                 rump_sys_rename("/rename.test1", "/rename.test2");
  53         }
  54         return NULL;
  55 }
  56
  57 ATF_TC_BODY(renamerace, tc)
  58 {
  59         struct tmpfs_args args;
  60         pthread_t pt1, pt2;
  61
  62         memset(&args, 0, sizeof(args));
  63         args.ta_version = TMPFS_ARGS_VERSION;
  64         args.ta_root_mode = 0777;
  65
  66         rump_init();
  67         if (rump_sys_mount(MOUNT_TMPFS, "/", 0, &args, sizeof(args)) == -1)
  68                 atf_tc_fail_errno("could not mount tmpfs");
  69
  70         pthread_create(&pt1, NULL, w1, NULL);
  71         pthread_create(&pt2, NULL, w2, NULL);
  72
  73         sleep(10);
  74 }
  75
  76 ATF_TP_ADD_TCS(tp)
  77 {
  78         ATF_TP_ADD_TC(tp, renamerace);
  79         return 0; /*XXX?*/
  80 }