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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/messaging/amqp/ReceiverContext.h"
#include "qpid/messaging/AddressImpl.h"
#include "qpid/messaging/Duration.h"
#include "qpid/messaging/Message.h"
#include "qpid/log/Statement.h"
extern "C" {
#include <proton/engine.h>
}
namespace qpid {
namespace messaging {
namespace amqp {
//TODO: proper conversion to wide string for address
ReceiverContext::ReceiverContext(pn_session_t* session, const std::string& n, const qpid::messaging::Address& a)
: name(n),
address(a),
helper(address),
receiver(pn_receiver(session, name.c_str())),
capacity(0), used(0) {}
ReceiverContext::~ReceiverContext()
{
pn_link_free(receiver);
}
void ReceiverContext::setCapacity(uint32_t c)
{
if (c != capacity) {
//stop
capacity = c;
//reissue credit
}
}
uint32_t ReceiverContext::getCapacity()
{
return capacity;
}
uint32_t ReceiverContext::getAvailable()
{
return pn_link_queued(receiver);
}
uint32_t ReceiverContext::getUnsettled()
{
return pn_link_unsettled(receiver) - pn_link_queued(receiver);
}
void ReceiverContext::close()
{
pn_link_close(receiver);
}
const std::string& ReceiverContext::getName() const
{
return name;
}
const std::string& ReceiverContext::getSource() const
{
return address.getName();
}
void ReceiverContext::verify()
{
pn_terminus_t* source = pn_link_remote_source(receiver);
if (!pn_terminus_get_address(source)) {
std::string msg("No such source : ");
msg += getSource();
QPID_LOG(debug, msg);
throw qpid::messaging::NotFound(msg);
} else if (AddressImpl::isTemporary(address)) {
address.setName(pn_terminus_get_address(source));
QPID_LOG(debug, "Dynamic source name set to " << address.getName());
}
helper.checkAssertion(source, AddressHelper::FOR_RECEIVER);
}
void ReceiverContext::configure()
{
configure(pn_link_source(receiver));
}
void ReceiverContext::configure(pn_terminus_t* source)
{
helper.configure(receiver, source, AddressHelper::FOR_RECEIVER);
std::string option;
if (helper.getLinkTarget(option)) {
pn_terminus_set_address(pn_link_target(receiver), option.c_str());
} else {
pn_terminus_set_address(pn_link_target(receiver), pn_terminus_get_address(pn_link_source(receiver)));
}
}
Address ReceiverContext::getAddress() const
{
return address;
}
void ReceiverContext::reset(pn_session_t* session)
{
receiver = pn_receiver(session, name.c_str());
configure();
}
bool ReceiverContext::hasCurrent()
{
return pn_link_current(receiver);
}
bool ReceiverContext::wakeupToIssueCredit()
{
if (++used >= (capacity/2)) {
used = 0;
return true;
} else {
return false;
}
}
}}} // namespace qpid::messaging::amqp
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