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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set et cin ts=4 sw=2 sts=2: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DelayHttpChannelQueue.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/TimeStamp.h"
#include "nsIObserverService.h"
#include "nsHttpChannel.h"
#include "nsThreadManager.h"
using namespace mozilla;
using namespace mozilla::net;
namespace {
StaticRefPtr<DelayHttpChannelQueue> sDelayHttpChannelQueue;
}
bool DelayHttpChannelQueue::AttemptQueueChannel(nsHttpChannel* aChannel) {
MOZ_ASSERT(aChannel);
MOZ_ASSERT(NS_IsMainThread());
if (!TimeStamp::GetFuzzyfoxEnabled()) {
return false;
}
if (!sDelayHttpChannelQueue) {
RefPtr<DelayHttpChannelQueue> queue = new DelayHttpChannelQueue();
if (!queue->Initialize()) {
return false;
}
sDelayHttpChannelQueue = queue;
}
if (NS_WARN_IF(
!sDelayHttpChannelQueue->mQueue.AppendElement(aChannel, fallible))) {
return false;
}
return true;
}
DelayHttpChannelQueue::DelayHttpChannelQueue() {
MOZ_ASSERT(NS_IsMainThread());
}
DelayHttpChannelQueue::~DelayHttpChannelQueue() {
MOZ_ASSERT(NS_IsMainThread());
}
bool DelayHttpChannelQueue::Initialize() {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (NS_WARN_IF(!obs)) {
return false;
}
nsresult rv = obs->AddObserver(this, "fuzzyfox-fire-outbound", false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = obs->AddObserver(this, "xpcom-shutdown", false);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
return true;
}
NS_IMETHODIMP
DelayHttpChannelQueue::Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) {
MOZ_ASSERT(NS_IsMainThread());
if (!strcmp(aTopic, "fuzzyfox-fire-outbound")) {
FireQueue();
return NS_OK;
}
MOZ_ASSERT(!strcmp(aTopic, "xpcom-shutdown"));
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (NS_WARN_IF(!obs)) {
return NS_OK;
}
obs->RemoveObserver(this, "fuzzyfox-fire-outbound");
obs->RemoveObserver(this, "xpcom-shutdown");
return NS_OK;
}
void DelayHttpChannelQueue::FireQueue() {
MOZ_ASSERT(NS_IsMainThread());
if (mQueue.IsEmpty()) {
return;
}
// TODO: get this from the DOM clock?
TimeStamp ts = TimeStamp::Now();
FallibleTArray<RefPtr<nsHttpChannel>> queue = std::move(mQueue);
for (RefPtr<nsHttpChannel>& channel : queue) {
channel->AsyncOpenFinal(ts);
}
}
NS_INTERFACE_MAP_BEGIN(DelayHttpChannelQueue)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(DelayHttpChannelQueue)
NS_IMPL_RELEASE(DelayHttpChannelQueue)