diff options
Diffstat (limited to 'libio/tst-mmap2-eofsync.c')
-rw-r--r-- | libio/tst-mmap2-eofsync.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/libio/tst-mmap2-eofsync.c b/libio/tst-mmap2-eofsync.c deleted file mode 100644 index 05dedb8c20..0000000000 --- a/libio/tst-mmap2-eofsync.c +++ /dev/null @@ -1,137 +0,0 @@ -/* Test program for synchronization of stdio state with file after EOF. */ - -#include <stdio.h> -#include <error.h> -#include <errno.h> -#include <string.h> -#include <unistd.h> - -static void do_prepare (void); -#define PREPARE(argc, argv) do_prepare () -static int do_test (void); -#define TEST_FUNCTION do_test () -#include <test-skeleton.c> - -static char *temp_file; -static int temp_fd; - -static char *pages; - -static void -do_prepare (void) -{ - pages = xmalloc (getpagesize () * 2); - memset (pages, 'a', getpagesize ()); - memset (pages + getpagesize (), 'b', getpagesize ()); - - temp_fd = create_temp_file ("tst-mmap2-eofsync.", &temp_file); - if (temp_fd == -1) - error (1, errno, "cannot create temporary file"); - else - { - ssize_t cc = write (temp_fd, pages, getpagesize ()); - if (cc != getpagesize ()) - error (1, errno, "cannot write to temporary file"); - } -} - -static int -do_test (void) -{ - const size_t pagesize = getpagesize (); - FILE *f; - char buf[pagesize]; - int result = 0; - int c; - - f = fopen (temp_file, "rm"); - if (f == NULL) - { - perror (temp_file); - return 1; - } - - if (fread (buf, pagesize, 1, f) != 1) - { - perror ("fread"); - return 1; - } - - if (memcmp (buf, pages, pagesize)) - { - puts ("data mismatch in page 1"); - result = 1; - } - - printf ("feof = %d, ferror = %d immediately after fread\n", - feof (f), ferror (f)); - - c = fgetc (f); - if (c == EOF) - printf ("fgetc -> EOF (feof = %d, ferror = %d)\n", - feof (f), ferror (f)); - else - { - printf ("fgetc returned %o (feof = %d, ferror = %d)\n", - c, feof (f), ferror (f)); - result = 1; - } - - c = write (temp_fd, pages + pagesize, pagesize); - if (c == (ssize_t) pagesize) - printf ("wrote more to file\n"); - else - { - printf ("wrote %d != %zd (%m)\n", c, pagesize); - result = 1; - } - - if (fread (buf, pagesize, 1, f) != 1) - { - printf ("second fread fails: feof = %d, ferror = %d (%m)\n", - feof (f), ferror (f)); - clearerr (f); - if (fread (buf, pagesize, 1, f) != 1) - { - printf ("retry fread fails: feof = %d, ferror = %d (%m)\n", - feof (f), ferror (f)); - result = 1; - } - } - if (result == 0 && memcmp (buf, pages + pagesize, pagesize)) - { - puts ("data mismatch in page 2"); - result = 1; - } - - fseek (f, pagesize - 1, SEEK_SET); - c = fgetc (f); - if (c != 'a') - { - printf ("fgetc at end of page 1 read '%c' (%m)\n", c); - result = 1; - } - - if (ftruncate (temp_fd, pagesize) < 0) - { - printf ("ftruncate failed: %m\n"); - result = 1; - } - - fflush (f); - - c = fgetc (f); - if (c == EOF) - printf ("after truncate fgetc -> EOF (feof = %d, ferror = %d)\n", - feof (f), ferror (f)); - else - { - printf ("after truncate fgetc returned '%c' (feof = %d, ferror = %d)\n", - c, feof (f), ferror (f)); - result = 1; - } - - fclose (f); - - return result; -} |