minix/fs/ext2/time.c

   1 /* Created (MFS based):
   2  *   February 2010 (Evgeniy Ivanov)
   3  */
   4
   5 #include "fs.h"
   6 #include "inode.h"
   7 #include <sys/time.h>
   8 #include <sys/stat.h>
   9
  10
  11 /*===========================================================================*
  12  *                              fs_utime                                     *
  13  *===========================================================================*/
  14 int fs_utime(ino_t ino_nr, struct timespec *atime, struct timespec *mtime)
  15 {
  16   register struct inode *rip;
  17
  18   /* Temporarily open the file. */
  19   if( (rip = get_inode(fs_dev, ino_nr)) == NULL)
  20         return(EINVAL);
  21
  22   rip->i_update = CTIME;        /* discard any stale ATIME and MTIME flags */
  23
  24   switch (atime->tv_nsec) {
  25   case UTIME_NOW:
  26         rip->i_update |= ATIME;
  27         break;
  28   case UTIME_OMIT: /* do not touch */
  29         break;
  30   default:
  31         /* Ext2FS does not support subsecond resolution, so we round down. */
  32         rip->i_atime = atime->tv_sec;
  33         break;
  34   }
  35
  36   switch (mtime->tv_nsec) {
  37   case UTIME_NOW:
  38         rip->i_update |= MTIME;
  39         break;
  40   case UTIME_OMIT: /* do not touch */
  41         break;
  42   default:
  43         /* Ext2FS does not support subsecond resolution, so we round down. */
  44         rip->i_mtime = mtime->tv_sec;
  45         break;
  46   }
  47
  48   rip->i_dirt = IN_DIRTY;
  49
  50   put_inode(rip);
  51   return(OK);
  52 }