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get packed input to work for AddressBook

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This commit is contained in:
David Renshaw 2014-09-28 14:10:09 -04:00
parent 25c9e6af0d
commit b186b4b794
3 changed files with 14 additions and 12 deletions
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4
examples/src/main/java/org/capnproto/examples/AddressbookMain.java
View file

@ -6,8 +6,6 @@ import java.io.FileDescriptor;
import org.capnproto.MessageBuilder;
import org.capnproto.MessageReader;
import org.capnproto.ByteChannelMessageReader;
import org.capnproto.Serialize;
import org.capnproto.SerializePacked;
import org.capnproto.StructList;
import org.capnproto.Text;
@ -49,7 +47,7 @@ public class AddressbookMain {
}
public static void printAddressBook() throws java.io.IOException {
MessageReader message = ByteChannelMessageReader.create(
MessageReader message = SerializePacked.newReaderUnbuffered(
(new FileInputStream(FileDescriptor.in)).getChannel());
AddressBook.Reader addressbook = message.getRoot(AddressBook.factory);
for(Person.Reader person : addressbook.getPeople()) {

19
runtime/src/main/java/org/capnproto/BufferedInputStreamWrapper.java
View file

@ -8,16 +8,16 @@ public final class BufferedInputStreamWrapper implements BufferedInputStream {
private final ReadableByteChannel inner;
private final ByteBuffer buf;
private int cap = 0;
public BufferedInputStreamWrapper(ReadableByteChannel chan) {
this.inner = chan;
this.buf = ByteBuffer.allocate(8192);
this.buf.limit(0);
}
public final int read(ByteBuffer dst) throws IOException {
int numBytes = dst.remaining();
if (numBytes < cap - this.buf.position()) {
if (numBytes < this.buf.remaining()) {
//# Serve from the current buffer.
ByteBuffer slice = this.buf.slice();
slice.limit(numBytes);
@ -26,7 +26,7 @@ public final class BufferedInputStreamWrapper implements BufferedInputStream {
return numBytes;
} else {
//# Copy current available into destination.
int fromFirstBuffer = cap - this.buf.position();
int fromFirstBuffer = this.buf.remaining();
{
ByteBuffer slice = this.buf.slice();
slice.limit(fromFirstBuffer);
@ -36,7 +36,7 @@ public final class BufferedInputStreamWrapper implements BufferedInputStream {
numBytes -= fromFirstBuffer;
if (numBytes <= this.buf.capacity()) {
//# Read the next buffer-full.
this.buf.rewind();
this.buf.clear();
int n = readAtLeast(this.inner, this.buf, numBytes);
this.buf.rewind();
@ -44,23 +44,24 @@ public final class BufferedInputStreamWrapper implements BufferedInputStream {
slice.limit(numBytes);
dst.put(slice);
this.cap = n;
this.buf.limit(n);
this.buf.position(numBytes);
return fromFirstBuffer + numBytes;
} else {
//# Forward large read to the underlying stream.
this.cap = 0;
this.buf.rewind();
this.buf.clear();
return fromFirstBuffer + readAtLeast(this.inner, dst, numBytes);
}
}
}
public final ByteBuffer getReadBuffer() throws IOException {
if (this.cap - this.buf.position() == 0) {
if (this.buf.remaining() == 0) {
this.buf.clear();
int n = readAtLeast(this.inner, this.buf, 1);
this.buf.rewind();
this.cap = readAtLeast(this.inner, this.buf, 1);
this.buf.limit(n);
}
return this.buf;
}

3
runtime/src/test/scala/org/capnproto/SerializePackedTest.scala
View file

@ -56,5 +56,8 @@ class SerializePackedSuite extends FunSuite {
expectPacksTo(Array(8,0,100,6,0,1,1,2, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,1,0,2,0,3,1),
Array(0xed.toByte,8,100,6,1,1,2, 0,2, 0xd4.toByte,1,2,3,1));
expectPacksTo(Array(0,0,0,0,2,0,0,0, 0,0,0,0,0,0,1,0, 0,0,0,0,0,0,0,0),
Array(0x10,2, 0x40,1, 0,0));
}
}