55 lines
2 KiB
Java
55 lines
2 KiB
Java
// Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
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// Licensed under the MIT License:
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package org.capnproto;
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import java.util.ArrayList;
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import java.nio.ByteBuffer;
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public final class ReaderArena implements Arena {
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public long limit;
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// current limit
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public final ArrayList<SegmentReader> segments;
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public ReaderArena(ByteBuffer[] segmentSlices, long traversalLimitInWords) {
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this.limit = traversalLimitInWords;
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this.segments = new ArrayList<SegmentReader>();
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for(int ii = 0; ii < segmentSlices.length; ++ii) {
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this.segments.add(new SegmentReader(segmentSlices[ii], this));
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}
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}
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@Override
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public SegmentReader tryGetSegment(int id) {
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return segments.get(id);
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}
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@Override
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public final void checkReadLimit(int numBytes) {
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if (numBytes > limit) {
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throw new DecodeException("Read limit exceeded.");
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} else {
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limit -= numBytes;
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}
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}
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}
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