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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 "SenderContext.h"
#include "qpid/messaging/exceptions.h"
#include "qpid/messaging/Message.h"
#include "qpid/log/Statement.h"
extern "C" {
#include "proton/engine.h"
#include "proton/message.h"
}
namespace qpid {
namespace messaging {
namespace amqp {
//TODO: proper conversion to wide string for address
SenderContext::SenderContext(pn_session_t* session, const std::string& n, const std::string& t)
: name(n),
target(t),
sender(pn_sender(session, target.c_str())), capacity(1000) {}
SenderContext::~SenderContext()
{
pn_link_destroy(sender);
}
void SenderContext::close()
{
}
void SenderContext::setCapacity(uint32_t c)
{
if (c < deliveries.size()) throw qpid::messaging::SenderError("Desired capacity is less than unsettled message count!");
capacity = c;
}
uint32_t SenderContext::getCapacity()
{
return capacity;
}
uint32_t SenderContext::getUnsettled()
{
return processUnsettled();
}
const std::string& SenderContext::getName() const
{
return name;
}
const std::string& SenderContext::getTarget() const
{
return target;
}
SenderContext::Delivery* SenderContext::send(const qpid::messaging::Message& message)
{
if (processUnsettled() < capacity) {
deliveries.push_back(Delivery(nextId++, message));
Delivery& delivery = deliveries.back();
delivery.send(sender);
return &delivery;
} else {
return 0;
}
}
uint32_t SenderContext::processUnsettled()
{
//remove accepted messages from front of deque
while (!deliveries.empty() && deliveries.front().accepted()) {
deliveries.pop_front();
}
return deliveries.size();
}
SenderContext::Delivery::Delivery(int32_t i, const qpid::messaging::Message& msg) :
id(i), token(0)
{
data.resize(msg.getContentSize() + 15);
//TODO: full message encoding including headers etc
pn_message_data(&data[0], data.size(), msg.getContentPtr(), msg.getContentSize());
}
void SenderContext::Delivery::send(pn_link_t* sender)
{
pn_delivery_tag_t tag;
tag.size = sizeof(int32_t);
tag.bytes = reinterpret_cast<char*>(&id);
token = pn_delivery(sender, tag);
pn_send(sender, &data[0], data.size());
}
bool SenderContext::Delivery::accepted()
{
return pn_remote_disp(token) == PN_ACCEPTED;
}
}}} // namespace qpid::messaging::amqp
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