120 lines
2.1 KiB
C
120 lines
2.1 KiB
C
#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/statvfs.h>
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include <test-skeleton.c>
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static int
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do_test (void)
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{
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char *buf;
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int fd;
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FILE *fp;
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int ch;
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struct stat st1;
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struct stat st2;
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buf = (char *) malloc (strlen (test_dir) + sizeof "/tst-atime.XXXXXX");
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if (buf == NULL)
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{
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printf ("cannot allocate memory: %m\n");
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return 1;
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}
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stpcpy (stpcpy (buf, test_dir), "/tst-atime.XXXXXX");
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fd = mkstemp (buf);
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if (fd == -1)
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{
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printf ("cannot open temporary file: %m\n");
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return 1;
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}
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#ifdef ST_NOATIME
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/* Make sure the filesystem doesn't have the noatime option set. If
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statvfs is not available just continue. */
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struct statvfs sv;
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int e = fstatvfs (fd, &sv);
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if (e != ENOSYS)
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{
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if (e != 0)
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{
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printf ("cannot statvfs '%s': %m\n", buf);
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return 1;
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}
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if ((sv.f_flag & ST_NOATIME) != 0)
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{
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puts ("Bah! The filesystem is mounted with noatime");
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return 0;
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}
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}
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#endif
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/* Make sure it gets removed. */
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add_temp_file (buf);
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if (write (fd, "some string\n", 12) != 12)
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{
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printf ("cannot write temporary file: %m\n");
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return 1;
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}
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if (lseek (fd, 0, SEEK_SET) == (off_t) -1)
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{
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printf ("cannot reposition temporary file: %m\n");
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return 1;
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}
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fp = fdopen (fd, "r");
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if (fp == NULL)
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{
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printf ("cannot create stream: %m\n");
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return 1;
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}
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if (fstat (fd, &st1) == -1)
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{
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printf ("first stat failed: %m\n");
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return 1;
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}
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sleep (2);
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ch = fgetc (fp);
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if (ch != 's')
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{
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printf ("did not read correct character: got '%c', expected 's'\n", ch);
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return 1;
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}
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if (fstat (fd, &st2) == -1)
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{
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printf ("second stat failed: %m\n");
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return 1;
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}
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if (st1.st_atime > st2.st_atime)
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{
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puts ("second atime smaller");
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return 1;
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}
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else if (st1.st_atime == st2.st_atime)
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{
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puts ("atime has not changed");
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return 1;
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}
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fclose (fp);
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return 0;
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}
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