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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file metis_ListenerSet.h
* @brief A listener set is unique on (MetisEncapType, localAddress)
*
* Keeps track of all the running listeners. The set is unique on the
* encapsulation type and the local address. For example, with TCP encapsulation and
* local address 127.0.0.1 or Ethernet encapsulation and MAC address 00:11:22:33:44:55.
*
* NOTE: This does not allow multiple EtherType on the same interface because the CPIAddress for
* a LINK address does not include an EtherType.
*
*/
#ifndef Metis_metis_ListenerSet_h
#define Metis_metis_ListenerSet_h
#include <ccnx/forwarder/metis/io/metis_Listener.h>
struct metis_listener_set;
typedef struct metis_listener_set MetisListenerSet;
/**
* <#One Line Description#>
*
* <#Paragraphs Of Explanation#>
*
* @param [<#in out in,out#>] <#name#> <#description#>
*
* @retval <#value#> <#explanation#>
*
* Example:
* @code
* <#example#>
* @endcode
*/
MetisListenerSet *metisListenerSet_Create(void);
/**
* <#One Line Description#>
*
* <#Paragraphs Of Explanation#>
*
* @param [<#in out in,out#>] <#name#> <#description#>
*
* @retval <#value#> <#explanation#>
*
* Example:
* @code
* <#example#>
* @endcode
*/
void metisListenerSet_Destroy(MetisListenerSet **setPtr);
/**
* @function metisListenerSet_Add
* @abstract Adds the listener to the set
* @discussion
* Unique set based on pair (MetisEncapType, localAddress).
* Takes ownership of the ops memory if added.
*
* @param <#param1#>
* @return true if added, false if not
*/
bool metisListenerSet_Add(MetisListenerSet *set, MetisListenerOps *ops);
/**
* The number of listeners in the set
*
* <#Paragraphs Of Explanation#>
*
* @param [in] set An allocated listener set
*
* @retval <#value#> <#explanation#>
*
* Example:
* @code
* <#example#>
* @endcode
*/
size_t metisListenerSet_Length(const MetisListenerSet *set);
/**
* Returns the listener at the given index
*
* <#Paragraphs Of Explanation#>
*
* @param [in] set An allocated listener set
* @param [in] index The index position (0 <= index < metisListenerSet_Lenght)
*
* @retval non-null The listener at index
* @retval null An error
*
* Example:
* @code
* <#example#>
* @endcode
*/
MetisListenerOps *metisListenerSet_Get(const MetisListenerSet *set, size_t index);
/**
* Looks up a listener by its key (EncapType, LocalAddress)
*
* <#Paragraphs Of Explanation#>
*
* @param [in] set An allocated listener set
* @param [in] encapType the listener type
* @param [in] localAddress The local bind address (e.g. MAC address or TCP socket)
*
* @retval non-null The listener matching the query
* @retval null Does not exist
*
* Example:
* @code
*
* @endcode
*/
MetisListenerOps *metisListenerSet_Find(const MetisListenerSet *set, MetisEncapType encapType, const CPIAddress *localAddress);
#endif
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