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      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "talk/base/common.h"
     29 #include "talk/xmpp/moduleimpl.h"
     30 
     31 namespace buzz {
     32 
     33 XmppModuleImpl::XmppModuleImpl() :
     34   engine_(NULL),
     35   stanza_handler_(this) {
     36 }
     37 
     38 XmppModuleImpl::~XmppModuleImpl()
     39 {
     40   if (engine_ != NULL) {
     41     engine_->RemoveStanzaHandler(&stanza_handler_);
     42     engine_ = NULL;
     43   }
     44 }
     45 
     46 XmppReturnStatus
     47 XmppModuleImpl::RegisterEngine(XmppEngine* engine)
     48 {
     49   if (NULL == engine || NULL != engine_)
     50     return XMPP_RETURN_BADARGUMENT;
     51 
     52   engine->AddStanzaHandler(&stanza_handler_);
     53   engine_ = engine;
     54 
     55   return XMPP_RETURN_OK;
     56 }
     57 
     58 XmppEngine*
     59 XmppModuleImpl::engine() {
     60   ASSERT(NULL != engine_);
     61   return engine_;
     62 }
     63 
     64 }
     65 
     66