tests/cases/test-mmap-mod-time.c

   1 #include <stdio.h>
   2 #include <sys/fcntl.h>
   3 #include <sys/mman.h>
   4 #include <unistd.h>
   5 #include <sys/stat.h>
   6 #include <sys/attr.h>
   7
   8 #include "hfs-tests.h"
   9 #include "test-utils.h"
  10 #include "disk-image.h"
  11
  12 TEST(mmap_mod_time)
  13
  14 static disk_image_t *di;
  15
  16 int run_mmap_mod_time(__unused test_ctx_t *ctx)
  17 {
  18         di = disk_image_get();
  19
  20         char *file;
  21         asprintf(&file, "%s/mmap_mod_time_test.dat", di->mount_point);
  22
  23         int fd;
  24
  25         assert_with_errno((fd = open(file,
  26                                                                  O_RDWR | O_CREAT | O_TRUNC, 0666)) >= 0);
  27
  28         assert_no_err(ftruncate(fd, 65536));
  29         assert_no_err(fsync(fd));
  30
  31         struct attrlist attrlist = {
  32                 .bitmapcount = ATTR_BIT_MAP_COUNT,
  33                 .commonattr = ATTR_CMN_MODTIME | ATTR_CMN_GEN_COUNT,
  34         };
  35 #pragma pack(push, 4)
  36         struct {
  37                 uint32_t len;
  38                 struct timespec mod_time;
  39                 uint32_t gen_count;
  40         } attrs[2];
  41 #pragma pack(pop)
  42
  43         assert_no_err(fgetattrlist(fd, &attrlist, &attrs[0], sizeof(attrs[0]),
  44                                                            FSOPT_ATTR_CMN_EXTENDED));
  45
  46         assert_no_err(close(fd));
  47
  48         assert_no_err(getattrlist(file,
  49                                                           &attrlist, &attrs[1], sizeof(attrs[1]),
  50                                                           FSOPT_ATTR_CMN_EXTENDED));
  51
  52         assert(attrs[1].gen_count == attrs[0].gen_count);
  53
  54         sleep(2);
  55
  56         assert_with_errno((fd = open(file,
  57                                                                  O_RDWR)) >= 0);
  58
  59         void *p;
  60         assert_with_errno((p = mmap(NULL, 65536, PROT_WRITE,
  61                                                                 MAP_SHARED, fd, 0)) != MAP_FAILED);
  62
  63         char data[] = "mmap_mod_time_test";
  64         memcpy(p, data, sizeof(data) - 1);
  65
  66         assert_no_err(msync(p, 65536, MS_SYNC));
  67
  68         assert_no_err(munmap(p, 65536));
  69
  70         assert_no_err(fgetattrlist(fd, &attrlist, &attrs[1], sizeof(attrs[1]),
  71                                                            FSOPT_ATTR_CMN_EXTENDED));
  72
  73         assert(attrs[0].mod_time.tv_sec != attrs[1].mod_time.tv_sec
  74                    || attrs[0].mod_time.tv_nsec != attrs[1].mod_time.tv_nsec);
  75
  76         assert(attrs[1].gen_count != attrs[0].gen_count);
  77
  78         assert_no_err(unlink(file));
  79
  80         assert_no_err(close(fd));
  81         free(file);
  82
  83         return 0;
  84 }