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Allow the max packet length to be reduced from the default.

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This commit is contained in:
akwizgran
2011-09-21 13:47:06 +01:00
parent 77d61e0aea
commit 7e58b25618
7 changed files with 108 additions and 17 deletions
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11
components/net/sf/briar/protocol/writers/AckWriterImpl.java
View File

@@ -18,7 +18,7 @@ class AckWriterImpl implements AckWriter {
private final Writer w;
private boolean started = false;
private int capacity = ProtocolConstants.MAX_PACKET_LENGTH; // FIXME
private int capacity = ProtocolConstants.MAX_PACKET_LENGTH;
AckWriterImpl(OutputStream out, SerialComponent serial,
WriterFactory writerFactory) {
@@ -30,6 +30,13 @@ class AckWriterImpl implements AckWriter {
w = writerFactory.createWriter(out);
}
public void setMaxPacketLength(int length) {
if(started) throw new IllegalStateException();
if(length < 0 || length > ProtocolConstants.MAX_PACKET_LENGTH)
throw new IllegalArgumentException();
capacity = length;
}
public boolean writeBatchId(BatchId b) throws IOException {
int overhead = started ? footerLength : headerLength + footerLength;
if(capacity < idLength + overhead) return false;
@@ -43,7 +50,7 @@ class AckWriterImpl implements AckWriter {
if(!started) start();
w.writeListEnd();
out.flush();
capacity = ProtocolConstants.MAX_PACKET_LENGTH; // FIXME
capacity = ProtocolConstants.MAX_PACKET_LENGTH;
started = false;
}

11
components/net/sf/briar/protocol/writers/BatchWriterImpl.java
View File

@@ -21,7 +21,7 @@ class BatchWriterImpl implements BatchWriter {
private final MessageDigest messageDigest;
private boolean started = false;
private int capacity = ProtocolConstants.MAX_PACKET_LENGTH; // FIXME
private int capacity = ProtocolConstants.MAX_PACKET_LENGTH;
BatchWriterImpl(OutputStream out, SerialComponent serial,
WriterFactory writerFactory, MessageDigest messageDigest) {
@@ -33,6 +33,13 @@ class BatchWriterImpl implements BatchWriter {
this.messageDigest = messageDigest;
}
public void setMaxPacketLength(int length) {
if(started) throw new IllegalStateException();
if(length < 0 || length > ProtocolConstants.MAX_PACKET_LENGTH)
throw new IllegalArgumentException();
capacity = length;
}
public boolean writeMessage(byte[] message) throws IOException {
int overhead = started ? footerLength : headerLength + footerLength;
if(capacity < message.length + overhead) return false;
@@ -47,7 +54,7 @@ class BatchWriterImpl implements BatchWriter {
if(!started) start();
w.writeListEnd();
out.flush();
capacity = ProtocolConstants.MAX_PACKET_LENGTH; // FIXME
capacity = ProtocolConstants.MAX_PACKET_LENGTH;
started = false;
return new BatchId(messageDigest.digest());
}

11
components/net/sf/briar/protocol/writers/OfferWriterImpl.java
View File

@@ -18,7 +18,7 @@ class OfferWriterImpl implements OfferWriter {
private final Writer w;
private boolean started = false;
private int capacity = ProtocolConstants.MAX_PACKET_LENGTH; // FIXME
private int capacity = ProtocolConstants.MAX_PACKET_LENGTH;
OfferWriterImpl(OutputStream out, SerialComponent serial,
WriterFactory writerFactory) {
@@ -30,6 +30,13 @@ class OfferWriterImpl implements OfferWriter {
w = writerFactory.createWriter(out);
}
public void setMaxPacketLength(int length) {
if(started) throw new IllegalStateException();
if(length < 0 || length > ProtocolConstants.MAX_PACKET_LENGTH)
throw new IllegalArgumentException();
capacity = length;
}
public boolean writeMessageId(MessageId m) throws IOException {
int overhead = started ? footerLength : headerLength + footerLength;
if(capacity < idLength + overhead) return false;
@@ -43,7 +50,7 @@ class OfferWriterImpl implements OfferWriter {
if(!started) start();
w.writeListEnd();
out.flush();
capacity = ProtocolConstants.MAX_PACKET_LENGTH; // FIXME
capacity = ProtocolConstants.MAX_PACKET_LENGTH;
started = false;
}