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/*
*
* 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.
*
*/
#include "qpid/cluster/Decoder.h"
#include "qpid/cluster/EventFrame.h"
#include "qpid/framing/ClusterConnectionDeliverCloseBody.h"
#include "qpid/framing/Buffer.h"
#include "qpid/framing/AMQFrame.h"
namespace qpid {
namespace cluster {
void Decoder::decode(const EventHeader& eh, const char* data) {
sys::Mutex::ScopedLock l(lock);
assert(eh.getType() == DATA); // Only handle connection data events.
const char* cp = static_cast<const char*>(data);
framing::Buffer buf(const_cast<char*>(cp), eh.getSize());
framing::FrameDecoder& decoder = map[eh.getConnectionId()];
if (decoder.decode(buf)) { // Decoded a frame
framing::AMQFrame frame(decoder.getFrame());
while (decoder.decode(buf)) {
callback(EventFrame(eh, frame));
frame = decoder.getFrame();
}
// Set read-credit on the last frame ending in this event.
// Credit will be given when this frame is processed.
callback(EventFrame(eh, frame, 1));
}
else {
// We must give 1 unit read credit per event.
// This event does not complete any frames so
// send an empty frame with the read credit.
callback(EventFrame(eh, framing::AMQFrame(), 1));
}
}
void Decoder::erase(const ConnectionId& c) {
sys::Mutex::ScopedLock l(lock);
map.erase(c);
}
framing::FrameDecoder& Decoder::get(const ConnectionId& c) {
sys::Mutex::ScopedLock l(lock);
return map[c];
}
}} // namespace qpid::cluster
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