Function my_fwrite

mysys/my_fstream.c:97–168

*/

size_t my_fwrite(FILE *stream, const uchar *Buffer, size_t Count, myf MyFlags)
{
  size_t writtenbytes =0;
  my_off_t seekptr;
#if !defined(NO_BACKGROUND) && defined(USE_MY_STREAM)
  uint errors;
#endif
  DBUG_ENTER("my_fwrite");
  DBUG_PRINT("my",("stream: 0x%lx  Buffer: 0x%lx  Count: %u  MyFlags: %d",
		   (long) stream, (long) Buffer, (uint) Count, MyFlags));
  DBUG_EXECUTE_IF("simulate_fwrite_error",  DBUG_RETURN(-1););

#if !defined(NO_BACKGROUND) && defined(USE_MY_STREAM)
  errors=0;
#endif
  seekptr= ftell(stream);
  for (;;)
  {
    size_t written;
    if ((written = (size_t) fwrite((char*) Buffer,sizeof(char),
                                   Count, stream)) != Count)
    {
      DBUG_PRINT("error",("Write only %d bytes", (int) writtenbytes));
      my_errno=errno;
      if (written != (size_t) -1)
      {
	seekptr+=written;
	Buffer+=written;
	writtenbytes+=written;
	Count-=written;
      }
#ifdef EINTR
      if (errno == EINTR)
      {
	(void) my_fseek(stream,seekptr,MY_SEEK_SET,MYF(0));
	continue;
      }
#endif
#if !defined(NO_BACKGROUND) && defined(USE_MY_STREAM)
      if (my_thread_var->abort)
	MyFlags&= ~ MY_WAIT_IF_FULL;		/* End if aborted by user */

      if ((errno == ENOSPC || errno == EDQUOT) &&
          (MyFlags & MY_WAIT_IF_FULL))
      {
        wait_for_free_space("[stream]", errors);
        errors++;
        (void) my_fseek(stream,seekptr,MY_SEEK_SET,MYF(0));
        continue;
      }
#endif
      if (ferror(stream) || (MyFlags & (MY_NABP | MY_FNABP)))
      {
        if (MyFlags & (MY_WME | MY_FAE | MY_FNABP))
        {
          char errbuf[MYSYS_STRERROR_SIZE];
          my_error(EE_WRITE, MYF(ME_BELL+ME_WAITTANG),
                   my_filename(my_fileno(stream)),