io.datakernel.http.AddressLinkedList Maven / Gradle / Ivy
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High-performance asynchronous HTTP clients and servers collection.
Package contains a bunch of different built-in servlets for request dispatching, loading of a static content, etc.
/*
* Copyright (C) 2015 SoftIndex LLC.
*
* 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.
*/
package io.datakernel.http;
final class AddressLinkedList {
private HttpClientConnection first;
private HttpClientConnection last;
public boolean isEmpty() {
return first == null;
}
public HttpClientConnection removeLastNode() {
if (last == null)
return null;
HttpClientConnection node = last;
last = node.addressPrev;
if (node.addressPrev != null) {
node.addressPrev.addressNext = node.addressNext;
} else {
assert first == node;
first = node.addressNext;
}
node.addressNext = node.addressPrev = null;
return node;
}
public void addLastNode(HttpClientConnection node) {
assert node.addressPrev == null && node.addressNext == null;
if (last != null) {
assert last.addressNext == null;
last.addressNext = node;
node.addressPrev = last;
} else {
assert first == null;
first = node;
}
last = node;
}
public void removeNode(HttpClientConnection node) {
if (node.addressPrev != null) {
node.addressPrev.addressNext = node.addressNext;
} else {
assert first == node;
first = node.addressNext;
}
if (node.addressNext != null) {
node.addressNext.addressPrev = node.addressPrev;
} else {
assert last == node;
last = node.addressPrev;
}
node.addressNext = node.addressPrev = null;
}
public int size() {
int count = 0;
for (HttpClientConnection connection = first; connection != null; connection = connection.addressNext) {
count++;
}
return count;
}
}