tests/cases/test-fsync.c

   1 #include <pthread.h>
   2 #include <unistd.h>
   3 #include <hfs/hfs_mount.h>
   4 #include <sys/param.h>
   5 #include <sys/mount.h>
   6 #include <assert.h>
   7 #include <fcntl.h>
   8 #include <stdio.h>
   9 #include <stdbool.h>
  10 #include <TargetConditionals.h>
  11 #include <sys/socket.h>
  12 #include <sys/un.h>
  13 #include <sys/stat.h>
  14
  15 #include "hfs-tests.h"
  16 #include "test-utils.h"
  17 #include "disk-image.h"
  18
  19 TEST(fsync, .run_as_root = true)
  20
  21 static int fd;
  22 volatile bool stop_thread;
  23
  24 void *sync_thread(__unused void *arg)
  25 {
  26         while (!stop_thread)
  27                 assert_no_err(fsync(fd));
  28
  29         return NULL;
  30 }
  31
  32 int run_fsync(__unused test_ctx_t *ctx)
  33 {
  34         disk_image_t *di = NULL;
  35         const char *tstdir;
  36
  37 #if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
  38         struct statfs sfs;
  39         bool hfs_root;
  40
  41         assert(statfs("/tmp", &sfs) == 0);
  42         if (strcmp(sfs.f_fstypename, "hfs")) {
  43                 hfs_root = false;
  44                 di = disk_image_get();
  45                 tstdir = di->mount_point;
  46         } else {
  47                 hfs_root = true;
  48                 tstdir = "/tmp";
  49         }
  50 #else // !TARGET_OS_IPHONE & !SIM
  51         di = disk_image_get();
  52         tstdir = di->mount_point;
  53 #endif
  54
  55         char *file;
  56         asprintf(&file, "%s/fsync.data", tstdir);
  57
  58         pthread_t thread;
  59
  60         fd = open(file, O_RDWR | O_CREAT, 0666);
  61
  62         assert_with_errno(fd >= 0);
  63
  64
  65         pthread_create(&thread, NULL, sync_thread, NULL);
  66
  67         void *buf = valloc(65536);
  68
  69         assert_no_err(fcntl(fd, F_NOCACHE, 1));
  70
  71         struct timeval start, now;
  72         gettimeofday(&start, NULL);
  73         do {
  74                 check_io(pwrite(fd, buf, 65536, 0), 65536);
  75
  76                 gettimeofday(&now, NULL);
  77         } while (now.tv_sec < start.tv_sec + 10);
  78
  79         stop_thread = true;
  80         pthread_join(thread, NULL);
  81
  82         assert_no_err(close(fd));
  83         assert_no_err(unlink(file));
  84
  85         assert_with_errno((fd = socket(PF_UNIX, SOCK_STREAM, 0)) >= 0);
  86
  87         struct sockaddr_un addr = {
  88                 .sun_family = AF_UNIX
  89         };
  90
  91         char *sock;
  92         asprintf(&sock, "%s/socket", tstdir);
  93         unlink(sock);
  94         strcpy(addr.sun_path, sock);
  95
  96         assert_no_err(bind(fd, (struct sockaddr *)&addr, sizeof(addr)));
  97
  98         // And a fifo
  99         char *fifo;
 100         asprintf(&fifo, "%s/fifo", tstdir);
 101         unlink(fifo);
 102         assert_no_err(mkfifo(fifo, 0666));
 103
 104         sync();
 105
 106         assert_no_err(unlink(sock));
 107         assert_no_err(unlink(fifo));
 108
 109         free(file);
 110         free(sock);
 111         free(fifo);
 112         free(buf);
 113
 114         return 0;
 115 }