none/tests/file_dclose.c

   1 #define _GNU_SOURCE
   2 #include <unistd.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <fcntl.h>
   6 #include "fdleak.h"
   7
   8 static int
   9 openfile (const char *f)
  10 {
  11    return creat (f, O_RDWR);
  12 }
  13
  14 static void
  15 closefile (const char *f, int fd)
  16 {
  17    close (fd);
  18    unlink (f);
  19 }
  20
  21 int main ()
  22 {
  23    CLOSE_INHERITED_FDS;
  24
  25    const char *TMPFILE = "file_dclose.tmp";
  26    int fd;
  27
  28    fd = openfile (TMPFILE);
  29    if (fd != -1) {
  30       fprintf(stderr, "close %d\n", fd);
  31       close (fd);
  32    }
  33
  34    fprintf (stderr, "time passes and we close %d again\n", fd);
  35    closefile (TMPFILE, fd);
  36
  37    return 0;
  38 }