netwerk/base/src/RedirectChannelRegistrar.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is mozilla.org code.
  15  *
  16  * The Initial Developer of the Original Code is Mozilla Foundation
  17  * Portions created by the Initial Developer are Copyright (C) 2010
  18  * the Initial Developer. All Rights Reserved.
  19  *
  20  * Contributor(s):
  21  *   Honza Bambas <honzab@firemni.cz>
  22  *
  23  * Alternatively, the contents of this file may be used under the terms of
  24  * either the GNU General Public License Version 2 or later (the "GPL"), or
  25  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  26  * in which case the provisions of the GPL or the LGPL are applicable instead
  27  * of those above. If you wish to allow use of your version of this file only
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  32  * the provisions above, a recipient may use your version of this file under
  33  * the terms of any one of the MPL, the GPL or the LGPL.
  34  *
  35  * ***** END LICENSE BLOCK ***** */
  36
  37 #include "RedirectChannelRegistrar.h"
  38
  39 namespace mozilla {
  40 namespace net {
  41
  42 template<class KeyClass, class T>
  43 PRBool
  44 RedirectChannelRegistrar::nsCOMPtrHashtable<KeyClass,T>::Get(KeyType aKey, T** retVal) const
  45 {
  46   typename base_type::EntryType* ent = this->GetEntry(aKey);
  47
  48   if (ent) {
  49     if (retVal)
  50       NS_IF_ADDREF(*retVal = ent->mData);
  51
  52     return PR_TRUE;
  53   }
  54
  55   if (retVal)
  56     *retVal = nsnull;
  57
  58   return PR_FALSE;
  59 }
  60
  61 NS_IMPL_ISUPPORTS1(RedirectChannelRegistrar, nsIRedirectChannelRegistrar)
  62
  63 RedirectChannelRegistrar::RedirectChannelRegistrar()
  64   : mId(1)
  65 {
  66   mRealChannels.Init(64);
  67   mParentChannels.Init(64);
  68 }
  69
  70 NS_IMETHODIMP
  71 RedirectChannelRegistrar::RegisterChannel(nsIChannel *channel,
  72                                           PRUint32 *_retval NS_OUTPARAM)
  73 {
  74   mRealChannels.Put(mId, channel);
  75   *_retval = mId;
  76
  77   ++mId;
  78
  79   // Ensure we always provide positive ids
  80   if (!mId)
  81     mId = 1;
  82
  83   return NS_OK;
  84 }
  85
  86 NS_IMETHODIMP
  87 RedirectChannelRegistrar::GetRegisteredChannel(PRUint32 id,
  88                                                nsIChannel **_retval NS_OUTPARAM)
  89 {
  90   if (!mRealChannels.Get(id, _retval))
  91     return NS_ERROR_NOT_AVAILABLE;
  92
  93   return NS_OK;
  94 }
  95
  96 NS_IMETHODIMP
  97 RedirectChannelRegistrar::LinkChannels(PRUint32 id,
  98                                        nsIParentChannel *channel,
  99                                        nsIChannel** _retval)
 100 {
 101   if (!mRealChannels.Get(id, _retval))
 102     return NS_ERROR_NOT_AVAILABLE;
 103
 104   mParentChannels.Put(id, channel);
 105   return NS_OK;
 106 }
 107
 108 NS_IMETHODIMP
 109 RedirectChannelRegistrar::GetParentChannel(PRUint32 id,
 110                                            nsIParentChannel **_retval NS_OUTPARAM)
 111 {
 112   if (!mParentChannels.Get(id, _retval))
 113     return NS_ERROR_NOT_AVAILABLE;
 114
 115   return NS_OK;
 116 }
 117
 118 NS_IMETHODIMP
 119 RedirectChannelRegistrar::DeregisterChannels(PRUint32 id)
 120 {
 121   mRealChannels.Remove(id);
 122   mParentChannels.Remove(id);
 123   return NS_OK;
 124 }
 125
 126 }
 127 }