Summary: First iteration for naive Buffer models. Reviewed By: skcho Differential Revision: D22844558 fbshipit-source-id: 4619255a9master
Ezgi Çiçek
4 years ago
committed by
Facebook GitHub Bot
parent
745c6577d8
commit
19799336d4
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package codetoanalyze.java.performance;
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import java.io.*;
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import java.nio.*;
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import java.util.*;
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class BufferTest {
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private ByteBuffer data;
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void drainBuffer_linear(ByteBuffer buffer) {
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while (buffer.hasRemaining()) {
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Byte b = buffer.get();
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}
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}
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void fillBuffer_linear(CharBuffer buffer, int capacity, String string) {
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for (int i = 0; i < capacity; i++) {
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buffer.put(string.charAt(i));
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}
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}
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void wrapBuffer_linear(byte[] arr) {
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ByteBuffer buffer = ByteBuffer.wrap(arr);
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while (buffer.hasRemaining()) {
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Byte b = buffer.get();
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}
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}
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void allocateBuffer_constant(byte[] arr) {
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ByteBuffer buffer = ByteBuffer.allocate(10);
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while (buffer.hasRemaining()) {
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Byte b = buffer.get();
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}
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}
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public void writeTo_linear(OutputStream out) throws IOException {
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byte[] buffer = new byte[8192];
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ByteBuffer data = this.data.duplicate();
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data.clear();
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while (data.hasRemaining()) {
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int count = Math.min(buffer.length, data.remaining());
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data.get(buffer, 0, count);
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out.write(buffer, 0, count);
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}
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}
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}
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