diff options
Diffstat (limited to 'REORG.TODO/libio/tst-atime.c')
-rw-r--r-- | REORG.TODO/libio/tst-atime.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/REORG.TODO/libio/tst-atime.c b/REORG.TODO/libio/tst-atime.c new file mode 100644 index 0000000000..31ca59fec5 --- /dev/null +++ b/REORG.TODO/libio/tst-atime.c @@ -0,0 +1,120 @@ +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/statvfs.h> + + +static int do_test (void); +#define TEST_FUNCTION do_test () +#define TIMEOUT 5 +#include <test-skeleton.c> + + +static int +do_test (void) +{ + char *buf; + int fd; + FILE *fp; + int ch; + struct stat st1; + struct stat st2; + + buf = (char *) malloc (strlen (test_dir) + sizeof "/tst-atime.XXXXXX"); + if (buf == NULL) + { + printf ("cannot allocate memory: %m\n"); + return 1; + } + stpcpy (stpcpy (buf, test_dir), "/tst-atime.XXXXXX"); + + fd = mkstemp (buf); + if (fd == -1) + { + printf ("cannot open temporary file: %m\n"); + return 1; + } + +#ifdef ST_NOATIME + /* Make sure the filesystem doesn't have the noatime option set. If + statvfs is not available just continue. */ + struct statvfs sv; + int e = fstatvfs (fd, &sv); + if (e != ENOSYS) + { + if (e != 0) + { + printf ("cannot statvfs '%s': %m\n", buf); + return 1; + } + + if ((sv.f_flag & ST_NOATIME) != 0) + { + puts ("Bah! The filesystem is mounted with noatime"); + return 0; + } + } +#endif + + /* Make sure it gets removed. */ + add_temp_file (buf); + + if (write (fd, "some string\n", 12) != 12) + { + printf ("cannot write temporary file: %m\n"); + return 1; + } + + if (lseek (fd, 0, SEEK_SET) == (off_t) -1) + { + printf ("cannot reposition temporary file: %m\n"); + return 1; + } + + fp = fdopen (fd, "r"); + if (fp == NULL) + { + printf ("cannot create stream: %m\n"); + return 1; + } + + if (fstat (fd, &st1) == -1) + { + printf ("first stat failed: %m\n"); + return 1; + } + + sleep (2); + + ch = fgetc (fp); + if (ch != 's') + { + printf ("did not read correct character: got '%c', expected 's'\n", ch); + return 1; + } + + if (fstat (fd, &st2) == -1) + { + printf ("second stat failed: %m\n"); + return 1; + } + + if (st1.st_atime > st2.st_atime) + { + puts ("second atime smaller"); + return 1; + } + else if (st1.st_atime == st2.st_atime) + { + puts ("atime has not changed"); + return 1; + } + + fclose (fp); + + return 0; +} |