Function httpWrite2

cups/http.c:3198–3380

 */

ssize_t					/* O - Number of bytes written */
httpWrite2(http_t     *http,		/* I - HTTP connection */
           const char *buffer,		/* I - Buffer for data */
	   size_t     length)		/* I - Number of bytes to write */
{
  ssize_t	bytes;			/* Bytes written */


  DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length));

 /*
  * Range check input...
  */

  if (!http || !buffer)
  {
    DEBUG_puts("1httpWrite2: Returning -1 due to bad input.");
    return (-1);
  }

 /*
  * Mark activity on the connection...
  */

  http->activity = time(NULL);

 /*
  * Buffer small writes for better performance...
  */

#ifdef HAVE_LIBZ
  if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE)
  {
    DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding));

    if (length == 0)
    {
      http_content_coding_finish(http);
      bytes = 0;
    }
    else
    {
      size_t	slen;			/* Bytes to write */
      ssize_t	sret;			/* Bytes written */

      ((z_stream *)http->stream)->next_in   = (Bytef *)buffer;
      ((z_stream *)http->stream)->avail_in  = (uInt)length;

      while (deflate((z_stream *)http->stream, Z_NO_FLUSH) == Z_OK)
      {
        DEBUG_printf(("1httpWrite2: avail_out=%d", ((z_stream *)http->stream)->avail_out));

        if (((z_stream *)http->stream)->avail_out > 0)
	  continue;

	slen = _HTTP_MAX_SBUFFER - ((z_stream *)http->stream)->avail_out;

        DEBUG_printf(("1httpWrite2: Writing intermediate chunk, len=%d", (int)slen));