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/*
* Copyright (c) 2017-2019 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.
*/
#include <src/config.h>
#include <stdio.h>
#include <parc/algol/parc_ArrayList.h>
#include <parc/algol/parc_Memory.h>
#include <parc/assert/parc_Assert.h>
#include <src/io/listenerSet.h>
struct listener_set {
PARCArrayList *listOfListeners;
};
static void listenerSet_DestroyListenerOps(void **opsPtr) {
ListenerOps *ops = *((ListenerOps **)opsPtr);
ops->destroy(&ops);
}
ListenerSet *listenerSet_Create() {
ListenerSet *set = parcMemory_AllocateAndClear(sizeof(ListenerSet));
parcAssertNotNull(set, "parcMemory_AllocateAndClear(%zu) returned NULL",
sizeof(ListenerSet));
set->listOfListeners = parcArrayList_Create(listenerSet_DestroyListenerOps);
return set;
}
void listenerSet_Destroy(ListenerSet **setPtr) {
parcAssertNotNull(setPtr, "Parameter must be non-null double pointer");
parcAssertNotNull(*setPtr, "Parameter must dereference to non-null pointer");
ListenerSet *set = *setPtr;
parcArrayList_Destroy(&set->listOfListeners);
parcMemory_Deallocate((void **)&set);
*setPtr = NULL;
}
/**
* @function listenerSet_Add
* @abstract Adds the listener to the set
* @discussion
* Unique set based on pair (EncapType, localAddress)
*
* @param <#param1#>
* @return <#return#>
*/
bool listenerSet_Add(ListenerSet *set, ListenerOps *ops) {
parcAssertNotNull(set, "Parameter set must be non-null");
parcAssertNotNull(ops, "Parameter ops must be non-null");
int opsEncap = ops->getEncapType(ops);
const Address *opsAddress = ops->getListenAddress(ops);
// make sure its not in the set
size_t length = parcArrayList_Size(set->listOfListeners);
for (size_t i = 0; i < length; i++) {
ListenerOps *entry = parcArrayList_Get(set->listOfListeners, i);
int entryEncap = entry->getEncapType(entry);
const Address *entryAddress = entry->getListenAddress(entry);
if (opsEncap == entryEncap && addressEquals(opsAddress, entryAddress)) {
// duplicate
return false;
}
}
parcArrayList_Add(set->listOfListeners, ops);
return true;
}
size_t listenerSet_Length(const ListenerSet *set) {
parcAssertNotNull(set, "Parameter set must be non-null");
return parcArrayList_Size(set->listOfListeners);
}
/**
* 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 < listenerSet_Count)
*
* @retval non-null The listener at index
* @retval null An error
*
* Example:
* @code
* <#example#>
* @endcode
*/
ListenerOps *listenerSet_Get(const ListenerSet *set, size_t index) {
parcAssertNotNull(set, "Parameter set must be non-null");
return parcArrayList_Get(set->listOfListeners, index);
}
ListenerOps *listenerSet_Find(const ListenerSet *set, EncapType encapType,
const Address *localAddress) {
parcAssertNotNull(set, "Parameter set must be non-null");
parcAssertNotNull(localAddress, "Parameter localAddress must be non-null");
ListenerOps *match = NULL;
for (size_t i = 0; i < parcArrayList_Size(set->listOfListeners) && !match;
i++) {
ListenerOps *ops = parcArrayList_Get(set->listOfListeners, i);
parcAssertNotNull(ops, "Got null listener ops at index %zu", i);
if (ops->getEncapType(ops) == encapType) {
if (addressEquals(localAddress, ops->getListenAddress(ops))) {
match = ops;
}
}
}
return match;
}
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