1 /*

     2  *    Copyright 2004-2006 Intel Corporation

     3  * 

     4  *    Licensed under the Apache License, Version 2.0 (the "License");

     5  *    you may not use this file except in compliance with the License.

     6  *    You may obtain a copy of the License at

     7  * 

     8  *        http://www.apache.org/licenses/LICENSE-2.0

     9  * 

    10  *    Unless required by applicable law or agreed to in writing, software

    11  *    distributed under the License is distributed on an "AS IS" BASIS,

    12  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    13  *    See the License for the specific language governing permissions and

    14  *    limitations under the License.

    15  */

    16 

    17 #ifndef _SIM_CONVERGENCE_LAYER_H_

    18 #define _SIM_CONVERGENCE_LAYER_H_

    19 

    20 

    21 #include "conv_layers/ConvergenceLayer.h"

    22 

    23 using namespace dtn;

    24 

    25 namespace dtnsim {

    26 

    27 struct ConnState;

    28 class Node;

    29 

    30 /**

    31  * Simulator implementation of the Convergence Layer API.

    32  */

    33 class SimConvergenceLayer : public ConvergenceLayer {

    34     

    35 public:

    36     /**

    37      * Singleton initializer.

    38      */

    39     static void init()

    40     {

    41         instance_ = new SimConvergenceLayer();

    42     }

    43 

    44     /**

    45      * Singleton accessor

    46      */

    47     static SimConvergenceLayer* instance() { return instance_; }

    48 

    49     /**

    50      * Constructor.

    51      */

    52     SimConvergenceLayer();

    53 

    54     /// @{

    55     /// Virtual from ConvergenceLayer

    56     bool init_link(const LinkRef& link, int argc, const char* argv[]);

    57     void delete_link(const LinkRef& link);

    58     bool open_contact(const ContactRef& contact);

    59     void bundle_queued(const LinkRef& link, const BundleRef& bundle);

    60     /// @}

    61 

    62     void update_connectivity(Node* n1, Node* n2, const ConnState& cs);

    63     

    64 protected:

    65     void start_bundle(const LinkRef& link, const BundleRef& bundle);

    66     

    67     static SimConvergenceLayer* instance_;

    68 };

    69 

    70 } // namespace dtnsim

    71 

    72 #endif /* _SIM_CONVERGENCE_LAYER_H_ */