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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/http/http_pipelined_host_pool.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/values.h"
#include "net/http/http_pipelined_host_capability.h"
#include "net/http/http_pipelined_host_forced.h"
#include "net/http/http_pipelined_host_impl.h"
#include "net/http/http_server_properties.h"
using base::ListValue;
using base::Value;
namespace net {
class HttpPipelinedHostImplFactory : public HttpPipelinedHost::Factory {
public:
virtual HttpPipelinedHost* CreateNewHost(
HttpPipelinedHost::Delegate* delegate,
const HttpPipelinedHost::Key& key,
HttpPipelinedConnection::Factory* factory,
HttpPipelinedHostCapability capability,
bool force_pipelining) OVERRIDE {
if (force_pipelining) {
return new HttpPipelinedHostForced(delegate, key, factory);
} else {
return new HttpPipelinedHostImpl(delegate, key, factory, capability);
}
}
};
HttpPipelinedHostPool::HttpPipelinedHostPool(
Delegate* delegate,
HttpPipelinedHost::Factory* factory,
HttpServerProperties* http_server_properties,
bool force_pipelining)
: delegate_(delegate),
factory_(factory),
http_server_properties_(http_server_properties),
force_pipelining_(force_pipelining) {
if (!factory) {
factory_.reset(new HttpPipelinedHostImplFactory);
}
}
HttpPipelinedHostPool::~HttpPipelinedHostPool() {
CHECK(host_map_.empty());
}
bool HttpPipelinedHostPool::IsKeyEligibleForPipelining(
const HttpPipelinedHost::Key& key) {
HttpPipelinedHostCapability capability =
http_server_properties_->GetPipelineCapability(key.origin());
return capability != PIPELINE_INCAPABLE;
}
HttpPipelinedStream* HttpPipelinedHostPool::CreateStreamOnNewPipeline(
const HttpPipelinedHost::Key& key,
ClientSocketHandle* connection,
const SSLConfig& used_ssl_config,
const ProxyInfo& used_proxy_info,
const BoundNetLog& net_log,
bool was_npn_negotiated,
SSLClientSocket::NextProto protocol_negotiated) {
HttpPipelinedHost* host = GetPipelinedHost(key, true);
if (!host) {
return NULL;
}
return host->CreateStreamOnNewPipeline(connection, used_ssl_config,
used_proxy_info, net_log,
was_npn_negotiated,
protocol_negotiated);
}
HttpPipelinedStream* HttpPipelinedHostPool::CreateStreamOnExistingPipeline(
const HttpPipelinedHost::Key& key) {
HttpPipelinedHost* host = GetPipelinedHost(key, false);
if (!host) {
return NULL;
}
return host->CreateStreamOnExistingPipeline();
}
bool HttpPipelinedHostPool::IsExistingPipelineAvailableForKey(
const HttpPipelinedHost::Key& key) {
HttpPipelinedHost* host = GetPipelinedHost(key, false);
if (!host) {
return false;
}
return host->IsExistingPipelineAvailable();
}
HttpPipelinedHost* HttpPipelinedHostPool::GetPipelinedHost(
const HttpPipelinedHost::Key& key, bool create_if_not_found) {
HostMap::iterator host_it = host_map_.find(key);
if (host_it != host_map_.end()) {
CHECK(host_it->second);
return host_it->second;
} else if (!create_if_not_found) {
return NULL;
}
HttpPipelinedHostCapability capability =
http_server_properties_->GetPipelineCapability(key.origin());
if (capability == PIPELINE_INCAPABLE) {
return NULL;
}
HttpPipelinedHost* host = factory_->CreateNewHost(
this, key, NULL, capability, force_pipelining_);
host_map_[key] = host;
return host;
}
void HttpPipelinedHostPool::OnHostIdle(HttpPipelinedHost* host) {
const HttpPipelinedHost::Key& key = host->GetKey();
CHECK(ContainsKey(host_map_, key));
host_map_.erase(key);
delete host;
}
void HttpPipelinedHostPool::OnHostHasAdditionalCapacity(
HttpPipelinedHost* host) {
delegate_->OnHttpPipelinedHostHasAdditionalCapacity(host);
}
void HttpPipelinedHostPool::OnHostDeterminedCapability(
HttpPipelinedHost* host,
HttpPipelinedHostCapability capability) {
http_server_properties_->SetPipelineCapability(host->GetKey().origin(),
capability);
}
Value* HttpPipelinedHostPool::PipelineInfoToValue() const {
ListValue* list = new ListValue();
for (HostMap::const_iterator it = host_map_.begin();
it != host_map_.end(); ++it) {
Value* value = it->second->PipelineInfoToValue();
list->Append(value);
}
return list;
}
} // namespace net
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