1 /*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
264 byte[] bytes = new byte[n];
265 int offset = 0;
266 while (n > 0) {
267 int length = Math.min(n, currentBuffer.remaining());
268 currentBuffer.get(bytes, offset, length);
269 offset += length;
270 n -= length;
271 nextBuffer();
272 }
273 return bytes;
274
275 }
276
277 private List<ByteBuffer> getBuffers(boolean isDataFrame, int bytecount) {
278 List<ByteBuffer> res = new ArrayList<>();
279 while (bytecount > 0) {
280 int remaining = currentBuffer.remaining();
281 int extract = Math.min(remaining, bytecount);
282 ByteBuffer extractedBuf;
283 if (isDataFrame) {
284 extractedBuf = Utils.slice(currentBuffer, extract);
285 slicedToDataFrame = true;
286 } else {
287 // Header frames here
288 // HPACK decoding should performed under lock and immediately after frame decoding.
289 // in that case it is safe to release original buffer,
290 // because of sliced buffer has a very short life
291 extractedBuf = Utils.slice(currentBuffer, extract);
292 }
293 res.add(extractedBuf);
294 bytecount -= extract;
295 nextBuffer();
296 }
297 return res;
298 }
299
300 public void close(String msg) {
301 closed = true;
302 tailBuffers.clear();
303 int bytes = tailSize;
304 ByteBuffer b = currentBuffer;
305 if (b != null) {
306 bytes += b.remaining();
307 b.position(b.limit());
308 }
309 tailSize = 0;
310 currentBuffer = null;
311 DEBUG_LOGGER.log(Level.DEBUG, "closed %s, ignoring %d bytes", msg, bytes);
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1 /*
2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
264 byte[] bytes = new byte[n];
265 int offset = 0;
266 while (n > 0) {
267 int length = Math.min(n, currentBuffer.remaining());
268 currentBuffer.get(bytes, offset, length);
269 offset += length;
270 n -= length;
271 nextBuffer();
272 }
273 return bytes;
274
275 }
276
277 private List<ByteBuffer> getBuffers(boolean isDataFrame, int bytecount) {
278 List<ByteBuffer> res = new ArrayList<>();
279 while (bytecount > 0) {
280 int remaining = currentBuffer.remaining();
281 int extract = Math.min(remaining, bytecount);
282 ByteBuffer extractedBuf;
283 if (isDataFrame) {
284 extractedBuf = Utils.sliceWithLimitedCapacity(currentBuffer, extract);
285 slicedToDataFrame = true;
286 } else {
287 // Header frames here
288 // HPACK decoding should performed under lock and immediately after frame decoding.
289 // in that case it is safe to release original buffer,
290 // because of sliced buffer has a very short life
291 extractedBuf = Utils.sliceWithLimitedCapacity(currentBuffer, extract);
292 }
293 res.add(extractedBuf);
294 bytecount -= extract;
295 nextBuffer();
296 }
297 return res;
298 }
299
300 public void close(String msg) {
301 closed = true;
302 tailBuffers.clear();
303 int bytes = tailSize;
304 ByteBuffer b = currentBuffer;
305 if (b != null) {
306 bytes += b.remaining();
307 b.position(b.limit());
308 }
309 tailSize = 0;
310 currentBuffer = null;
311 DEBUG_LOGGER.log(Level.DEBUG, "closed %s, ignoring %d bytes", msg, bytes);
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