pd.if.org Git - pdclib/blob - functions/stdio/fflush.c

   1 /* ----------------------------------------------------------------------------
   2  * $Id$
   3  * ----------------------------------------------------------------------------
   4  * Public Domain C Library - http://pdclib.sourceforge.net
   5  * This code is Public Domain. Use, modify, and redistribute at will.
   6  * --------------------------------------------------------------------------*/
   7
   8 int fflush( FILE * stream ) { /* TODO */ };
   9
  10 /* PDPC code - unreviewed
  11 Read the note in fopen.c.
  12 {
  13 #ifdef __OS2__
  14     APIRET rc;
  15     ULONG actualWritten;
  16 #endif
  17 #ifdef __MSDOS__
  18     int errind;
  19     size_t actualWritten;
  20 #endif
  21
  22     if ((stream->upto != stream->fbuf) && (stream->mode == __WRITE_MODE))
  23     {
  24 #ifdef __OS2__
  25         rc = DosWrite(stream->hfile,
  26                      (VOID *)stream->fbuf,
  27                      (size_t)(stream->upto - stream->fbuf),
  28                      &actualWritten);
  29         if (rc != 0)
  30         {
  31             stream->errorInd = 1;
  32             errno = rc;
  33             return (EOF);
  34         }
  35 #endif
  36 #ifdef __MSDOS__
  37         actualWritten = __write(stream->hfile,
  38                                 stream->fbuf,
  39                                 (size_t)(stream->upto - stream->fbuf),
  40                                 &errind);
  41         if (errind)
  42         {
  43             stream->errorInd = 1;
  44             errno = actualWritten;
  45             return (EOF);
  46         }
  47 #endif
  48 #ifndef __MVS__
  49         stream->bufStartR += actualWritten;
  50         stream->upto = stream->fbuf;
  51 #endif
  52     }
  53     return (0);
  54 }
  55 */