diff Cassandra/lib/Thrift/BufferedTransport.pm @ 0:a2f0a2c135cf

hg init
author Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
date Sun, 06 Jun 2010 22:00:38 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Cassandra/lib/Thrift/BufferedTransport.pm	Sun Jun 06 22:00:38 2010 +0900
@@ -0,0 +1,136 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+require 5.6.0;
+use strict;
+use warnings;
+
+use Thrift;
+use Thrift::Transport;
+
+package Thrift::BufferedTransport;
+use base('Thrift::Transport');
+
+sub new
+{
+    my $classname = shift;
+    my $transport = shift;
+    my $rBufSize  = shift || 512;
+    my $wBufSize  = shift || 512;
+
+    my $self = {
+        transport => $transport,
+        rBufSize  => $rBufSize,
+        wBufSize  => $wBufSize,
+        wBuf      => '',
+        rBuf      => '',
+    };
+
+    return bless($self,$classname);
+}
+
+sub isOpen
+{
+    my $self = shift;
+
+    return $self->{transport}->isOpen();
+}
+
+sub open
+{
+    my $self = shift;
+    $self->{transport}->open();
+}
+
+sub close()
+{
+    my $self = shift;
+    $self->{transport}->close();
+}
+
+sub readAll
+{
+    my $self = shift;
+    my $len  = shift;
+
+    return $self->{transport}->readAll($len);
+}
+
+sub read
+{
+    my $self = shift;
+    my $len  = shift;
+    my $ret;
+
+    # Methinks Perl is already buffering these for us
+    return $self->{transport}->read($len);
+}
+
+sub write
+{
+    my $self = shift;
+    my $buf  = shift;
+
+    $self->{wBuf} .= $buf;
+    if (length($self->{wBuf}) >= $self->{wBufSize}) {
+        $self->{transport}->write($self->{wBuf});
+        $self->{wBuf} = '';
+    }
+}
+
+sub flush
+{
+    my $self = shift;
+
+    if (length($self->{wBuf}) > 0) {
+        $self->{transport}->write($self->{wBuf});
+        $self->{wBuf} = '';
+    }
+    $self->{transport}->flush();
+}
+
+
+#
+# BufferedTransport factory creates buffered transport objects from transports
+#
+package Thrift::BufferedTransportFactory;
+
+sub new {
+    my $classname = shift;
+    my $self      = {};
+
+    return bless($self,$classname);
+}
+
+#
+# Build a buffered transport from the base transport
+#
+# @return Thrift::BufferedTransport transport
+#
+sub getTransport
+{
+    my $self  = shift;
+    my $trans = shift;
+
+    my $buffered = Thrift::BufferedTransport->new($trans);
+    return $buffered;
+}
+
+
+1;