1 /* $NetBSD: t_renamerace.c,v 1.4 2009/04/08 09:11:34 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 #include <rump/ukfs.h> 22 23 #include <fs/tmpfs/tmpfs_args.h> 24 25 ATF_TC(renamerace); 26 ATF_TC_HEAD(renamerace, tc) 27 { 28 atf_tc_set_md_var(tc, "descr", "rename(2) race against files " 29 "unlinked mid-operation, kern/41128"); 30 } 31 32 static void * 33 w1(void *arg) 34 { 35 int fd; 36 37 for (;;) { 38 fd = rump_sys_open("/rename.test1", 39 O_WRONLY|O_CREAT|O_TRUNC, 0666); 40 rump_sys_unlink("/rename.test1"); 41 rump_sys_close(fd); 42 } 43 return NULL; 44 } 45 46 static void * 47 w2(void *arg) 48 { 49 50 for (;;) { 51 rump_sys_rename("/rename.test1", "/rename.test2"); 52 } 53 return NULL; 54 } 55 56 ATF_TC_BODY(renamerace, tc) 57 { 58 struct tmpfs_args args; 59 struct ukfs *fs; 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 ukfs_init(); 67 fs = ukfs_mount(MOUNT_TMPFS, "tmpfs", UKFS_DEFAULTMP, 0, 68 &args, sizeof(args)); 69 if (fs == NULL) 70 atf_tc_fail("could not mount tmpfs: %d (%s)", 71 errno, strerror(errno)); 72 73 pthread_create(&pt1, NULL, w1, fs); 74 pthread_create(&pt2, NULL, w2, fs); 75 76 sleep(10); 77 } 78 79 ATF_TP_ADD_TCS(tp) 80 { 81 ATF_TP_ADD_TC(tp, renamerace); 82 return 0; /*XXX?*/ 83 } 84