nghttp2/src/shrpx_downstream_queue.cc

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/*
2014-03-30 12:09:21 +02:00
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "shrpx_downstream_queue.h"
#include <cassert>
#include "shrpx_downstream.h"
namespace shrpx {
DownstreamQueue::DownstreamQueue()
{}
DownstreamQueue::~DownstreamQueue()
{}
void DownstreamQueue::add_pending(std::unique_ptr<Downstream> downstream)
{
auto stream_id = downstream->get_stream_id();
pending_downstreams_[stream_id] = std::move(downstream);
}
void DownstreamQueue::add_failure(std::unique_ptr<Downstream> downstream)
{
auto stream_id = downstream->get_stream_id();
failure_downstreams_[stream_id] = std::move(downstream);
}
void DownstreamQueue::add_active(std::unique_ptr<Downstream> downstream)
{
auto stream_id = downstream->get_stream_id();
active_downstreams_[stream_id] = std::move(downstream);
}
std::unique_ptr<Downstream> DownstreamQueue::remove(int32_t stream_id)
{
auto kv = pending_downstreams_.find(stream_id);
if(kv != std::end(pending_downstreams_)) {
auto downstream = std::move((*kv).second);
pending_downstreams_.erase(kv);
return downstream;
}
kv = active_downstreams_.find(stream_id);
if(kv != std::end(active_downstreams_)) {
auto downstream = std::move((*kv).second);
active_downstreams_.erase(kv);
return downstream;
}
kv = failure_downstreams_.find(stream_id);
if(kv != std::end(failure_downstreams_)) {
auto downstream = std::move((*kv).second);
failure_downstreams_.erase(kv);
return downstream;
}
return nullptr;
}
Downstream* DownstreamQueue::find(int32_t stream_id)
{
auto kv = pending_downstreams_.find(stream_id);
if(kv != std::end(pending_downstreams_)) {
return (*kv).second.get();
}
kv = active_downstreams_.find(stream_id);
if(kv != std::end(active_downstreams_)) {
return (*kv).second.get();
}
kv = failure_downstreams_.find(stream_id);
if(kv != std::end(failure_downstreams_)) {
return (*kv).second.get();
}
return nullptr;
}
std::unique_ptr<Downstream> DownstreamQueue::pop_pending()
{
auto i = std::begin(pending_downstreams_);
if(i == std::end(pending_downstreams_)) {
return nullptr;
}
auto downstream = std::move((*i).second);
pending_downstreams_.erase(i);
return downstream;
}
Downstream* DownstreamQueue::pending_top() const
{
auto i = std::begin(pending_downstreams_);
if(i == std::end(pending_downstreams_)) {
return nullptr;
}
return (*i).second.get();
}
size_t DownstreamQueue::num_active() const
{
return active_downstreams_.size();
}
bool DownstreamQueue::pending_empty() const
{
return pending_downstreams_.empty();
}
const std::map<int32_t, std::unique_ptr<Downstream>>&
DownstreamQueue::get_active_downstreams() const
{
return active_downstreams_;
}
} // namespace shrpx