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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.nio;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.apache.hadoop.hbase.io.ByteBuffAllocator.NONE;</span> |
| <span class="source-line-no">021</span><span id="line-21"></span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.IOException;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.nio.ByteBuffer;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.nio.channels.FileChannel;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.nio.channels.ReadableByteChannel;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.io.ByteBuffAllocator.Recycler;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.unsafe.HBasePlatformDependent;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.util.ByteBufferUtils;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.util.ObjectIntPair;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.util.UnsafeAccess;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32"></span> |
| <span class="source-line-no">033</span><span id="line-33">/**</span> |
| <span class="source-line-no">034</span><span id="line-34"> * An implementation of ByteBuff where a single BB backs the BBI. This just acts as a wrapper over a</span> |
| <span class="source-line-no">035</span><span id="line-35"> * normal BB - offheap or onheap</span> |
| <span class="source-line-no">036</span><span id="line-36"> */</span> |
| <span class="source-line-no">037</span><span id="line-37">@InterfaceAudience.Private</span> |
| <span class="source-line-no">038</span><span id="line-38">public class SingleByteBuff extends ByteBuff {</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40"> private static final boolean UNSAFE_AVAIL = HBasePlatformDependent.isUnsafeAvailable();</span> |
| <span class="source-line-no">041</span><span id="line-41"> private static final boolean UNSAFE_UNALIGNED = HBasePlatformDependent.unaligned();</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43"> // Underlying BB</span> |
| <span class="source-line-no">044</span><span id="line-44"> private final ByteBuffer buf;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46"> // To access primitive values from underlying ByteBuffer using Unsafe</span> |
| <span class="source-line-no">047</span><span id="line-47"> private long unsafeOffset;</span> |
| <span class="source-line-no">048</span><span id="line-48"> private Object unsafeRef = null;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> public SingleByteBuff(ByteBuffer buf) {</span> |
| <span class="source-line-no">051</span><span id="line-51"> this(NONE, buf);</span> |
| <span class="source-line-no">052</span><span id="line-52"> }</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> public SingleByteBuff(Recycler recycler, ByteBuffer buf) {</span> |
| <span class="source-line-no">055</span><span id="line-55"> this(new RefCnt(recycler), buf);</span> |
| <span class="source-line-no">056</span><span id="line-56"> }</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> SingleByteBuff(RefCnt refCnt, ByteBuffer buf) {</span> |
| <span class="source-line-no">059</span><span id="line-59"> this.refCnt = refCnt;</span> |
| <span class="source-line-no">060</span><span id="line-60"> this.buf = buf;</span> |
| <span class="source-line-no">061</span><span id="line-61"> if (buf.hasArray()) {</span> |
| <span class="source-line-no">062</span><span id="line-62"> this.unsafeOffset = UnsafeAccess.BYTE_ARRAY_BASE_OFFSET + buf.arrayOffset();</span> |
| <span class="source-line-no">063</span><span id="line-63"> this.unsafeRef = buf.array();</span> |
| <span class="source-line-no">064</span><span id="line-64"> } else {</span> |
| <span class="source-line-no">065</span><span id="line-65"> this.unsafeOffset = UnsafeAccess.directBufferAddress(buf);</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</span> |
| <span class="source-line-no">067</span><span id="line-67"> }</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> @Override</span> |
| <span class="source-line-no">070</span><span id="line-70"> public int position() {</span> |
| <span class="source-line-no">071</span><span id="line-71"> checkRefCount();</span> |
| <span class="source-line-no">072</span><span id="line-72"> return this.buf.position();</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> @Override</span> |
| <span class="source-line-no">076</span><span id="line-76"> public SingleByteBuff position(int position) {</span> |
| <span class="source-line-no">077</span><span id="line-77"> checkRefCount();</span> |
| <span class="source-line-no">078</span><span id="line-78"> this.buf.position(position);</span> |
| <span class="source-line-no">079</span><span id="line-79"> return this;</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> @Override</span> |
| <span class="source-line-no">083</span><span id="line-83"> public SingleByteBuff skip(int len) {</span> |
| <span class="source-line-no">084</span><span id="line-84"> checkRefCount();</span> |
| <span class="source-line-no">085</span><span id="line-85"> this.buf.position(this.buf.position() + len);</span> |
| <span class="source-line-no">086</span><span id="line-86"> return this;</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> @Override</span> |
| <span class="source-line-no">090</span><span id="line-90"> public SingleByteBuff moveBack(int len) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> checkRefCount();</span> |
| <span class="source-line-no">092</span><span id="line-92"> this.buf.position(this.buf.position() - len);</span> |
| <span class="source-line-no">093</span><span id="line-93"> return this;</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> @Override</span> |
| <span class="source-line-no">097</span><span id="line-97"> public int capacity() {</span> |
| <span class="source-line-no">098</span><span id="line-98"> checkRefCount();</span> |
| <span class="source-line-no">099</span><span id="line-99"> return this.buf.capacity();</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> @Override</span> |
| <span class="source-line-no">103</span><span id="line-103"> public int limit() {</span> |
| <span class="source-line-no">104</span><span id="line-104"> checkRefCount();</span> |
| <span class="source-line-no">105</span><span id="line-105"> return this.buf.limit();</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> @Override</span> |
| <span class="source-line-no">109</span><span id="line-109"> public SingleByteBuff limit(int limit) {</span> |
| <span class="source-line-no">110</span><span id="line-110"> checkRefCount();</span> |
| <span class="source-line-no">111</span><span id="line-111"> this.buf.limit(limit);</span> |
| <span class="source-line-no">112</span><span id="line-112"> return this;</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"></span> |
| <span class="source-line-no">115</span><span id="line-115"> @Override</span> |
| <span class="source-line-no">116</span><span id="line-116"> public SingleByteBuff rewind() {</span> |
| <span class="source-line-no">117</span><span id="line-117"> checkRefCount();</span> |
| <span class="source-line-no">118</span><span id="line-118"> this.buf.rewind();</span> |
| <span class="source-line-no">119</span><span id="line-119"> return this;</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> @Override</span> |
| <span class="source-line-no">123</span><span id="line-123"> public SingleByteBuff mark() {</span> |
| <span class="source-line-no">124</span><span id="line-124"> checkRefCount();</span> |
| <span class="source-line-no">125</span><span id="line-125"> this.buf.mark();</span> |
| <span class="source-line-no">126</span><span id="line-126"> return this;</span> |
| <span class="source-line-no">127</span><span id="line-127"> }</span> |
| <span class="source-line-no">128</span><span id="line-128"></span> |
| <span class="source-line-no">129</span><span id="line-129"> @Override</span> |
| <span class="source-line-no">130</span><span id="line-130"> public ByteBuffer asSubByteBuffer(int length) {</span> |
| <span class="source-line-no">131</span><span id="line-131"> checkRefCount();</span> |
| <span class="source-line-no">132</span><span id="line-132"> // Just return the single BB that is available</span> |
| <span class="source-line-no">133</span><span id="line-133"> return this.buf;</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> @Override</span> |
| <span class="source-line-no">137</span><span id="line-137"> public void asSubByteBuffer(int offset, int length, ObjectIntPair<ByteBuffer> pair) {</span> |
| <span class="source-line-no">138</span><span id="line-138"> checkRefCount();</span> |
| <span class="source-line-no">139</span><span id="line-139"> // Just return the single BB that is available</span> |
| <span class="source-line-no">140</span><span id="line-140"> pair.setFirst(this.buf);</span> |
| <span class="source-line-no">141</span><span id="line-141"> pair.setSecond(offset);</span> |
| <span class="source-line-no">142</span><span id="line-142"> }</span> |
| <span class="source-line-no">143</span><span id="line-143"></span> |
| <span class="source-line-no">144</span><span id="line-144"> @Override</span> |
| <span class="source-line-no">145</span><span id="line-145"> public int remaining() {</span> |
| <span class="source-line-no">146</span><span id="line-146"> checkRefCount();</span> |
| <span class="source-line-no">147</span><span id="line-147"> return this.buf.remaining();</span> |
| <span class="source-line-no">148</span><span id="line-148"> }</span> |
| <span class="source-line-no">149</span><span id="line-149"></span> |
| <span class="source-line-no">150</span><span id="line-150"> @Override</span> |
| <span class="source-line-no">151</span><span id="line-151"> public boolean hasRemaining() {</span> |
| <span class="source-line-no">152</span><span id="line-152"> checkRefCount();</span> |
| <span class="source-line-no">153</span><span id="line-153"> return buf.hasRemaining();</span> |
| <span class="source-line-no">154</span><span id="line-154"> }</span> |
| <span class="source-line-no">155</span><span id="line-155"></span> |
| <span class="source-line-no">156</span><span id="line-156"> @Override</span> |
| <span class="source-line-no">157</span><span id="line-157"> public SingleByteBuff reset() {</span> |
| <span class="source-line-no">158</span><span id="line-158"> checkRefCount();</span> |
| <span class="source-line-no">159</span><span id="line-159"> this.buf.reset();</span> |
| <span class="source-line-no">160</span><span id="line-160"> return this;</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> @Override</span> |
| <span class="source-line-no">164</span><span id="line-164"> public SingleByteBuff slice() {</span> |
| <span class="source-line-no">165</span><span id="line-165"> checkRefCount();</span> |
| <span class="source-line-no">166</span><span id="line-166"> return new SingleByteBuff(this.refCnt, this.buf.slice());</span> |
| <span class="source-line-no">167</span><span id="line-167"> }</span> |
| <span class="source-line-no">168</span><span id="line-168"></span> |
| <span class="source-line-no">169</span><span id="line-169"> @Override</span> |
| <span class="source-line-no">170</span><span id="line-170"> public SingleByteBuff duplicate() {</span> |
| <span class="source-line-no">171</span><span id="line-171"> checkRefCount();</span> |
| <span class="source-line-no">172</span><span id="line-172"> return new SingleByteBuff(this.refCnt, this.buf.duplicate());</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"></span> |
| <span class="source-line-no">175</span><span id="line-175"> @Override</span> |
| <span class="source-line-no">176</span><span id="line-176"> public byte get() {</span> |
| <span class="source-line-no">177</span><span id="line-177"> checkRefCount();</span> |
| <span class="source-line-no">178</span><span id="line-178"> return buf.get();</span> |
| <span class="source-line-no">179</span><span id="line-179"> }</span> |
| <span class="source-line-no">180</span><span id="line-180"></span> |
| <span class="source-line-no">181</span><span id="line-181"> @Override</span> |
| <span class="source-line-no">182</span><span id="line-182"> public byte get(int index) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> checkRefCount();</span> |
| <span class="source-line-no">184</span><span id="line-184"> if (UNSAFE_AVAIL) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> return UnsafeAccess.toByte(this.unsafeRef, this.unsafeOffset + index);</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"> return this.buf.get(index);</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"></span> |
| <span class="source-line-no">190</span><span id="line-190"> @Override</span> |
| <span class="source-line-no">191</span><span id="line-191"> public byte getByteAfterPosition(int offset) {</span> |
| <span class="source-line-no">192</span><span id="line-192"> checkRefCount();</span> |
| <span class="source-line-no">193</span><span id="line-193"> return get(this.buf.position() + offset);</span> |
| <span class="source-line-no">194</span><span id="line-194"> }</span> |
| <span class="source-line-no">195</span><span id="line-195"></span> |
| <span class="source-line-no">196</span><span id="line-196"> @Override</span> |
| <span class="source-line-no">197</span><span id="line-197"> public SingleByteBuff put(byte b) {</span> |
| <span class="source-line-no">198</span><span id="line-198"> checkRefCount();</span> |
| <span class="source-line-no">199</span><span id="line-199"> this.buf.put(b);</span> |
| <span class="source-line-no">200</span><span id="line-200"> return this;</span> |
| <span class="source-line-no">201</span><span id="line-201"> }</span> |
| <span class="source-line-no">202</span><span id="line-202"></span> |
| <span class="source-line-no">203</span><span id="line-203"> @Override</span> |
| <span class="source-line-no">204</span><span id="line-204"> public SingleByteBuff put(int index, byte b) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> checkRefCount();</span> |
| <span class="source-line-no">206</span><span id="line-206"> buf.put(index, b);</span> |
| <span class="source-line-no">207</span><span id="line-207"> return this;</span> |
| <span class="source-line-no">208</span><span id="line-208"> }</span> |
| <span class="source-line-no">209</span><span id="line-209"></span> |
| <span class="source-line-no">210</span><span id="line-210"> @Override</span> |
| <span class="source-line-no">211</span><span id="line-211"> public void get(byte[] dst, int offset, int length) {</span> |
| <span class="source-line-no">212</span><span id="line-212"> checkRefCount();</span> |
| <span class="source-line-no">213</span><span id="line-213"> ByteBufferUtils.copyFromBufferToArray(dst, buf, buf.position(), offset, length);</span> |
| <span class="source-line-no">214</span><span id="line-214"> buf.position(buf.position() + length);</span> |
| <span class="source-line-no">215</span><span id="line-215"> }</span> |
| <span class="source-line-no">216</span><span id="line-216"></span> |
| <span class="source-line-no">217</span><span id="line-217"> @Override</span> |
| <span class="source-line-no">218</span><span id="line-218"> public void get(int sourceOffset, byte[] dst, int offset, int length) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> checkRefCount();</span> |
| <span class="source-line-no">220</span><span id="line-220"> ByteBufferUtils.copyFromBufferToArray(dst, buf, sourceOffset, offset, length);</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"></span> |
| <span class="source-line-no">223</span><span id="line-223"> @Override</span> |
| <span class="source-line-no">224</span><span id="line-224"> public void get(byte[] dst) {</span> |
| <span class="source-line-no">225</span><span id="line-225"> get(dst, 0, dst.length);</span> |
| <span class="source-line-no">226</span><span id="line-226"> }</span> |
| <span class="source-line-no">227</span><span id="line-227"></span> |
| <span class="source-line-no">228</span><span id="line-228"> @Override</span> |
| <span class="source-line-no">229</span><span id="line-229"> public SingleByteBuff put(int offset, ByteBuff src, int srcOffset, int length) {</span> |
| <span class="source-line-no">230</span><span id="line-230"> checkRefCount();</span> |
| <span class="source-line-no">231</span><span id="line-231"> if (src instanceof SingleByteBuff) {</span> |
| <span class="source-line-no">232</span><span id="line-232"> ByteBufferUtils.copyFromBufferToBuffer(((SingleByteBuff) src).buf, this.buf, srcOffset,</span> |
| <span class="source-line-no">233</span><span id="line-233"> offset, length);</span> |
| <span class="source-line-no">234</span><span id="line-234"> } else {</span> |
| <span class="source-line-no">235</span><span id="line-235"> // TODO we can do some optimization here? Call to asSubByteBuffer might</span> |
| <span class="source-line-no">236</span><span id="line-236"> // create a copy.</span> |
| <span class="source-line-no">237</span><span id="line-237"> ObjectIntPair<ByteBuffer> pair = new ObjectIntPair<>();</span> |
| <span class="source-line-no">238</span><span id="line-238"> src.asSubByteBuffer(srcOffset, length, pair);</span> |
| <span class="source-line-no">239</span><span id="line-239"> if (pair.getFirst() != null) {</span> |
| <span class="source-line-no">240</span><span id="line-240"> ByteBufferUtils.copyFromBufferToBuffer(pair.getFirst(), this.buf, pair.getSecond(), offset,</span> |
| <span class="source-line-no">241</span><span id="line-241"> length);</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</span> |
| <span class="source-line-no">244</span><span id="line-244"> return this;</span> |
| <span class="source-line-no">245</span><span id="line-245"> }</span> |
| <span class="source-line-no">246</span><span id="line-246"></span> |
| <span class="source-line-no">247</span><span id="line-247"> @Override</span> |
| <span class="source-line-no">248</span><span id="line-248"> public SingleByteBuff put(byte[] src, int offset, int length) {</span> |
| <span class="source-line-no">249</span><span id="line-249"> checkRefCount();</span> |
| <span class="source-line-no">250</span><span id="line-250"> ByteBufferUtils.copyFromArrayToBuffer(this.buf, src, offset, length);</span> |
| <span class="source-line-no">251</span><span id="line-251"> return this;</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"></span> |
| <span class="source-line-no">254</span><span id="line-254"> @Override</span> |
| <span class="source-line-no">255</span><span id="line-255"> public SingleByteBuff put(byte[] src) {</span> |
| <span class="source-line-no">256</span><span id="line-256"> checkRefCount();</span> |
| <span class="source-line-no">257</span><span id="line-257"> return put(src, 0, src.length);</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"></span> |
| <span class="source-line-no">260</span><span id="line-260"> @Override</span> |
| <span class="source-line-no">261</span><span id="line-261"> public boolean hasArray() {</span> |
| <span class="source-line-no">262</span><span id="line-262"> checkRefCount();</span> |
| <span class="source-line-no">263</span><span id="line-263"> return this.buf.hasArray();</span> |
| <span class="source-line-no">264</span><span id="line-264"> }</span> |
| <span class="source-line-no">265</span><span id="line-265"></span> |
| <span class="source-line-no">266</span><span id="line-266"> @Override</span> |
| <span class="source-line-no">267</span><span id="line-267"> public byte[] array() {</span> |
| <span class="source-line-no">268</span><span id="line-268"> checkRefCount();</span> |
| <span class="source-line-no">269</span><span id="line-269"> return this.buf.array();</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"></span> |
| <span class="source-line-no">272</span><span id="line-272"> @Override</span> |
| <span class="source-line-no">273</span><span id="line-273"> public int arrayOffset() {</span> |
| <span class="source-line-no">274</span><span id="line-274"> checkRefCount();</span> |
| <span class="source-line-no">275</span><span id="line-275"> return this.buf.arrayOffset();</span> |
| <span class="source-line-no">276</span><span id="line-276"> }</span> |
| <span class="source-line-no">277</span><span id="line-277"></span> |
| <span class="source-line-no">278</span><span id="line-278"> @Override</span> |
| <span class="source-line-no">279</span><span id="line-279"> public short getShort() {</span> |
| <span class="source-line-no">280</span><span id="line-280"> checkRefCount();</span> |
| <span class="source-line-no">281</span><span id="line-281"> return this.buf.getShort();</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283"></span> |
| <span class="source-line-no">284</span><span id="line-284"> @Override</span> |
| <span class="source-line-no">285</span><span id="line-285"> public short getShort(int index) {</span> |
| <span class="source-line-no">286</span><span id="line-286"> checkRefCount();</span> |
| <span class="source-line-no">287</span><span id="line-287"> if (UNSAFE_UNALIGNED) {</span> |
| <span class="source-line-no">288</span><span id="line-288"> return UnsafeAccess.toShort(unsafeRef, unsafeOffset + index);</span> |
| <span class="source-line-no">289</span><span id="line-289"> }</span> |
| <span class="source-line-no">290</span><span id="line-290"> return this.buf.getShort(index);</span> |
| <span class="source-line-no">291</span><span id="line-291"> }</span> |
| <span class="source-line-no">292</span><span id="line-292"></span> |
| <span class="source-line-no">293</span><span id="line-293"> @Override</span> |
| <span class="source-line-no">294</span><span id="line-294"> public short getShortAfterPosition(int offset) {</span> |
| <span class="source-line-no">295</span><span id="line-295"> checkRefCount();</span> |
| <span class="source-line-no">296</span><span id="line-296"> return getShort(this.buf.position() + offset);</span> |
| <span class="source-line-no">297</span><span id="line-297"> }</span> |
| <span class="source-line-no">298</span><span id="line-298"></span> |
| <span class="source-line-no">299</span><span id="line-299"> @Override</span> |
| <span class="source-line-no">300</span><span id="line-300"> public int getInt() {</span> |
| <span class="source-line-no">301</span><span id="line-301"> checkRefCount();</span> |
| <span class="source-line-no">302</span><span id="line-302"> return this.buf.getInt();</span> |
| <span class="source-line-no">303</span><span id="line-303"> }</span> |
| <span class="source-line-no">304</span><span id="line-304"></span> |
| <span class="source-line-no">305</span><span id="line-305"> @Override</span> |
| <span class="source-line-no">306</span><span id="line-306"> public SingleByteBuff putInt(int value) {</span> |
| <span class="source-line-no">307</span><span id="line-307"> checkRefCount();</span> |
| <span class="source-line-no">308</span><span id="line-308"> ByteBufferUtils.putInt(this.buf, value);</span> |
| <span class="source-line-no">309</span><span id="line-309"> return this;</span> |
| <span class="source-line-no">310</span><span id="line-310"> }</span> |
| <span class="source-line-no">311</span><span id="line-311"></span> |
| <span class="source-line-no">312</span><span id="line-312"> @Override</span> |
| <span class="source-line-no">313</span><span id="line-313"> public int getInt(int index) {</span> |
| <span class="source-line-no">314</span><span id="line-314"> checkRefCount();</span> |
| <span class="source-line-no">315</span><span id="line-315"> if (UNSAFE_UNALIGNED) {</span> |
| <span class="source-line-no">316</span><span id="line-316"> return UnsafeAccess.toInt(unsafeRef, unsafeOffset + index);</span> |
| <span class="source-line-no">317</span><span id="line-317"> }</span> |
| <span class="source-line-no">318</span><span id="line-318"> return this.buf.getInt(index);</span> |
| <span class="source-line-no">319</span><span id="line-319"> }</span> |
| <span class="source-line-no">320</span><span id="line-320"></span> |
| <span class="source-line-no">321</span><span id="line-321"> @Override</span> |
| <span class="source-line-no">322</span><span id="line-322"> public int getIntAfterPosition(int offset) {</span> |
| <span class="source-line-no">323</span><span id="line-323"> checkRefCount();</span> |
| <span class="source-line-no">324</span><span id="line-324"> return getInt(this.buf.position() + offset);</span> |
| <span class="source-line-no">325</span><span id="line-325"> }</span> |
| <span class="source-line-no">326</span><span id="line-326"></span> |
| <span class="source-line-no">327</span><span id="line-327"> @Override</span> |
| <span class="source-line-no">328</span><span id="line-328"> public long getLong() {</span> |
| <span class="source-line-no">329</span><span id="line-329"> checkRefCount();</span> |
| <span class="source-line-no">330</span><span id="line-330"> return this.buf.getLong();</span> |
| <span class="source-line-no">331</span><span id="line-331"> }</span> |
| <span class="source-line-no">332</span><span id="line-332"></span> |
| <span class="source-line-no">333</span><span id="line-333"> @Override</span> |
| <span class="source-line-no">334</span><span id="line-334"> public SingleByteBuff putLong(long value) {</span> |
| <span class="source-line-no">335</span><span id="line-335"> checkRefCount();</span> |
| <span class="source-line-no">336</span><span id="line-336"> ByteBufferUtils.putLong(this.buf, value);</span> |
| <span class="source-line-no">337</span><span id="line-337"> return this;</span> |
| <span class="source-line-no">338</span><span id="line-338"> }</span> |
| <span class="source-line-no">339</span><span id="line-339"></span> |
| <span class="source-line-no">340</span><span id="line-340"> @Override</span> |
| <span class="source-line-no">341</span><span id="line-341"> public long getLong(int index) {</span> |
| <span class="source-line-no">342</span><span id="line-342"> checkRefCount();</span> |
| <span class="source-line-no">343</span><span id="line-343"> if (UNSAFE_UNALIGNED) {</span> |
| <span class="source-line-no">344</span><span id="line-344"> return UnsafeAccess.toLong(unsafeRef, unsafeOffset + index);</span> |
| <span class="source-line-no">345</span><span id="line-345"> }</span> |
| <span class="source-line-no">346</span><span id="line-346"> return this.buf.getLong(index);</span> |
| <span class="source-line-no">347</span><span id="line-347"> }</span> |
| <span class="source-line-no">348</span><span id="line-348"></span> |
| <span class="source-line-no">349</span><span id="line-349"> @Override</span> |
| <span class="source-line-no">350</span><span id="line-350"> public long getLongAfterPosition(int offset) {</span> |
| <span class="source-line-no">351</span><span id="line-351"> checkRefCount();</span> |
| <span class="source-line-no">352</span><span id="line-352"> return getLong(this.buf.position() + offset);</span> |
| <span class="source-line-no">353</span><span id="line-353"> }</span> |
| <span class="source-line-no">354</span><span id="line-354"></span> |
| <span class="source-line-no">355</span><span id="line-355"> @Override</span> |
| <span class="source-line-no">356</span><span id="line-356"> public byte[] toBytes(int offset, int length) {</span> |
| <span class="source-line-no">357</span><span id="line-357"> checkRefCount();</span> |
| <span class="source-line-no">358</span><span id="line-358"> byte[] output = new byte[length];</span> |
| <span class="source-line-no">359</span><span id="line-359"> ByteBufferUtils.copyFromBufferToArray(output, buf, offset, 0, length);</span> |
| <span class="source-line-no">360</span><span id="line-360"> return output;</span> |
| <span class="source-line-no">361</span><span id="line-361"> }</span> |
| <span class="source-line-no">362</span><span id="line-362"></span> |
| <span class="source-line-no">363</span><span id="line-363"> @Override</span> |
| <span class="source-line-no">364</span><span id="line-364"> public void get(ByteBuffer out, int sourceOffset, int length) {</span> |
| <span class="source-line-no">365</span><span id="line-365"> checkRefCount();</span> |
| <span class="source-line-no">366</span><span id="line-366"> ByteBufferUtils.copyFromBufferToBuffer(buf, out, sourceOffset, length);</span> |
| <span class="source-line-no">367</span><span id="line-367"> }</span> |
| <span class="source-line-no">368</span><span id="line-368"></span> |
| <span class="source-line-no">369</span><span id="line-369"> @Override</span> |
| <span class="source-line-no">370</span><span id="line-370"> public int read(ReadableByteChannel channel) throws IOException {</span> |
| <span class="source-line-no">371</span><span id="line-371"> checkRefCount();</span> |
| <span class="source-line-no">372</span><span id="line-372"> return read(channel, buf, 0, CHANNEL_READER);</span> |
| <span class="source-line-no">373</span><span id="line-373"> }</span> |
| <span class="source-line-no">374</span><span id="line-374"></span> |
| <span class="source-line-no">375</span><span id="line-375"> @Override</span> |
| <span class="source-line-no">376</span><span id="line-376"> public int read(FileChannel channel, long offset) throws IOException {</span> |
| <span class="source-line-no">377</span><span id="line-377"> checkRefCount();</span> |
| <span class="source-line-no">378</span><span id="line-378"> return read(channel, buf, offset, FILE_READER);</span> |
| <span class="source-line-no">379</span><span id="line-379"> }</span> |
| <span class="source-line-no">380</span><span id="line-380"></span> |
| <span class="source-line-no">381</span><span id="line-381"> @Override</span> |
| <span class="source-line-no">382</span><span id="line-382"> public int write(FileChannel channel, long offset) throws IOException {</span> |
| <span class="source-line-no">383</span><span id="line-383"> checkRefCount();</span> |
| <span class="source-line-no">384</span><span id="line-384"> int total = 0;</span> |
| <span class="source-line-no">385</span><span id="line-385"> while (buf.hasRemaining()) {</span> |
| <span class="source-line-no">386</span><span id="line-386"> int len = channel.write(buf, offset);</span> |
| <span class="source-line-no">387</span><span id="line-387"> total += len;</span> |
| <span class="source-line-no">388</span><span id="line-388"> offset += len;</span> |
| <span class="source-line-no">389</span><span id="line-389"> }</span> |
| <span class="source-line-no">390</span><span id="line-390"> return total;</span> |
| <span class="source-line-no">391</span><span id="line-391"> }</span> |
| <span class="source-line-no">392</span><span id="line-392"></span> |
| <span class="source-line-no">393</span><span id="line-393"> @Override</span> |
| <span class="source-line-no">394</span><span id="line-394"> public ByteBuffer[] nioByteBuffers() {</span> |
| <span class="source-line-no">395</span><span id="line-395"> checkRefCount();</span> |
| <span class="source-line-no">396</span><span id="line-396"> return new ByteBuffer[] { this.buf };</span> |
| <span class="source-line-no">397</span><span id="line-397"> }</span> |
| <span class="source-line-no">398</span><span id="line-398"></span> |
| <span class="source-line-no">399</span><span id="line-399"> @Override</span> |
| <span class="source-line-no">400</span><span id="line-400"> public boolean equals(Object obj) {</span> |
| <span class="source-line-no">401</span><span id="line-401"> if (!(obj instanceof SingleByteBuff)) {</span> |
| <span class="source-line-no">402</span><span id="line-402"> return false;</span> |
| <span class="source-line-no">403</span><span id="line-403"> }</span> |
| <span class="source-line-no">404</span><span id="line-404"> return this.buf.equals(((SingleByteBuff) obj).buf);</span> |
| <span class="source-line-no">405</span><span id="line-405"> }</span> |
| <span class="source-line-no">406</span><span id="line-406"></span> |
| <span class="source-line-no">407</span><span id="line-407"> @Override</span> |
| <span class="source-line-no">408</span><span id="line-408"> public int hashCode() {</span> |
| <span class="source-line-no">409</span><span id="line-409"> return this.buf.hashCode();</span> |
| <span class="source-line-no">410</span><span id="line-410"> }</span> |
| <span class="source-line-no">411</span><span id="line-411"></span> |
| <span class="source-line-no">412</span><span id="line-412"> @Override</span> |
| <span class="source-line-no">413</span><span id="line-413"> public SingleByteBuff retain() {</span> |
| <span class="source-line-no">414</span><span id="line-414"> refCnt.retain();</span> |
| <span class="source-line-no">415</span><span id="line-415"> return this;</span> |
| <span class="source-line-no">416</span><span id="line-416"> }</span> |
| <span class="source-line-no">417</span><span id="line-417">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
