transport/base/aaTransportUtils.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2010 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef AA_TRANSPORT_UTILS_H
  23 #define AA_TRANSPORT_UTILS_H
  24
  25 #include "nsIPipe.h"
  26 #include "nsIAsyncOutputStream.h"
  27 #include "nsIAsyncInputStream.h"
  28
  29 #include "nsComponentManagerUtils.h"
  30
  31 inline nsresult
  32 AA_CreatePipe(nsIInputStream **pipeIn,
  33               nsIOutputStream **pipeOut,
  34               PRBool nonBlockingIn = PR_TRUE)
  35 {
  36   nsresult rv;
  37
  38   nsCOMPtr<nsIAsyncInputStream> in;
  39   nsCOMPtr<nsIAsyncOutputStream> out;
  40   nsCOMPtr<nsIPipe> pipe
  41     = do_CreateInstance("@mozilla.org/pipe;1", &rv);
  42   NS_ENSURE_SUCCESS(rv, rv);
  43
  44   rv = pipe->Init(nonBlockingIn, PR_FALSE, 0, 0, nsnull);
  45   NS_ENSURE_SUCCESS(rv, rv);
  46
  47   rv = pipe->GetInputStream(getter_AddRefs(in));
  48   NS_ENSURE_SUCCESS(rv, rv);
  49
  50   rv = pipe->GetOutputStream(getter_AddRefs(out));
  51   NS_ENSURE_SUCCESS(rv, rv);
  52
  53   NS_IF_ADDREF(*pipeIn = in);
  54   NS_IF_ADDREF(*pipeOut = out);
  55   return NS_OK;
  56 }
  57
  58 #endif //AA_TRANSPORT_UTILS_H
  59