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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 <src/utils/interfaceSet.h>
#include <parc/algol/parc_ArrayList.h>
#include <parc/algol/parc_Memory.h>
#include <parc/assert/parc_Assert.h>
struct interfaceSet {
PARCArrayList *listOfInterfaces;
};
static void _destroyInterface(void **ifaceVoidPtr) {
interfaceDestroy((Interface **)ifaceVoidPtr);
}
InterfaceSet *interfaceSetCreate(void) {
InterfaceSet *set = parcMemory_AllocateAndClear(sizeof(InterfaceSet));
parcAssertNotNull(set, "parcMemory_AllocateAndClear(%zu) returned NULL",
sizeof(InterfaceSet));
set->listOfInterfaces = parcArrayList_Create(_destroyInterface);
return set;
}
void interfaceSetDestroy(InterfaceSet **setPtr) {
parcAssertNotNull(setPtr, "Parameter must be non-null double pointer");
parcAssertNotNull(*setPtr, "Parameter must dereference to non-null pointer");
InterfaceSet *set = *setPtr;
parcArrayList_Destroy(&set->listOfInterfaces);
parcMemory_Deallocate((void **)&set);
*setPtr = NULL;
}
bool interfaceSetAdd(InterfaceSet *set, Interface *iface) {
parcAssertNotNull(set, "Parameter set must be non-null");
parcAssertNotNull(iface, "Parameter iface must be non-null");
unsigned ifaceIndex = interfaceGetInterfaceIndex(iface);
size_t length = parcArrayList_Size(set->listOfInterfaces);
for (size_t i = 0; i < length; i++) {
Interface *listEntry =
(Interface *)parcArrayList_Get(set->listOfInterfaces, i);
unsigned entryInterfaceIndex = interfaceGetInterfaceIndex(listEntry);
if (entryInterfaceIndex == ifaceIndex) {
return false;
}
}
parcArrayList_Add(set->listOfInterfaces, (PARCObject *)iface);
return true;
}
size_t interfaceSetLength(const InterfaceSet *set) {
parcAssertNotNull(set, "Parameter set must be non-null");
return parcArrayList_Size(set->listOfInterfaces);
}
Interface *interfaceSetGetByOrdinalIndex(InterfaceSet *set,
size_t ordinalIndex) {
parcAssertNotNull(set, "Parameter set must be non-null");
return (Interface *)parcArrayList_Get(set->listOfInterfaces, ordinalIndex);
}
Interface *interfaceSetGetByInterfaceIndex(const InterfaceSet *set,
unsigned interfaceIndex) {
size_t length = parcArrayList_Size(set->listOfInterfaces);
for (size_t i = 0; i < length; i++) {
Interface *listEntry =
(Interface *)parcArrayList_Get(set->listOfInterfaces, i);
unsigned entryInterfaceIndex = interfaceGetInterfaceIndex(listEntry);
if (entryInterfaceIndex == interfaceIndex) {
return listEntry;
}
}
return NULL;
}
/**
* Uses the system name (e.g. "en0")
*
* <#Discussion#>
*
* @param <#param1#>
* @return NULL if not found
*
* Example:
* @code
* <#example#>
* @endcode
*/
Interface *interfaceSetGetByName(InterfaceSet *set, const char *name) {
size_t length = parcArrayList_Size(set->listOfInterfaces);
for (size_t i = 0; i < length; i++) {
Interface *listEntry =
(Interface *)parcArrayList_Get(set->listOfInterfaces, i);
if (interfaceNameEquals(listEntry, name)) {
return listEntry;
}
}
return NULL;
}
bool interfaceSetEquals(const InterfaceSet *a, const InterfaceSet *b) {
if (a == NULL && b == NULL) {
return true;
}
if (a == NULL || b == NULL) {
return false;
}
size_t length_a = parcArrayList_Size(a->listOfInterfaces);
size_t length_b = parcArrayList_Size(b->listOfInterfaces);
if (length_a == length_b) {
for (size_t i = 0; i < length_a; i++) {
Interface *iface_a =
(Interface *)parcArrayList_Get(a->listOfInterfaces, i);
// the set is unique by interface id, so if it exists in set b, it
// exists there by interface id
Interface *iface_b = interfaceSetGetByInterfaceIndex(
b, interfaceGetInterfaceIndex(iface_a));
if (!interfaceEquals(iface_b, iface_b)) {
return false;
}
}
return true;
}
return false;
}
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