gecko/netwerk/protocol/http/Http2Push.cpp
Patrick McManus 57ed828988 bug 378637 part 10 - implement nsAHttpTransaction::ConnectionInfo r=hurley
--HG--
extra : rebase_source : b4b955c652b14e750013130428b71e2e308fead3
2014-04-20 12:01:35 -04:00

356 lines
8.4 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et tw=80 : */
/* 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/. */
// HttpLog.h should generally be included first
#include "HttpLog.h"
// Log on level :5, instead of default :4.
#undef LOG
#define LOG(args) LOG5(args)
#undef LOG_ENABLED
#define LOG_ENABLED() LOG5_ENABLED()
#include <algorithm>
#include "Http2Push.h"
#include "nsDependentString.h"
namespace mozilla {
namespace net {
//////////////////////////////////////////
// Http2PushedStream
//////////////////////////////////////////
Http2PushedStream::Http2PushedStream(Http2PushTransactionBuffer *aTransaction,
Http2Session *aSession,
Http2Stream *aAssociatedStream,
uint32_t aID)
:Http2Stream(aTransaction, aSession, 0)
, mConsumerStream(nullptr)
, mBufferedPush(aTransaction)
, mStatus(NS_OK)
, mPushCompleted(false)
, mDeferCleanupOnSuccess(true)
{
LOG3(("Http2PushedStream ctor this=%p 0x%X\n", this, aID));
mStreamID = aID;
MOZ_ASSERT(!(aID & 1)); // must be even to be a pushed stream
mBufferedPush->SetPushStream(this);
mLoadGroupCI = aAssociatedStream->LoadGroupConnectionInfo();
mLastRead = TimeStamp::Now();
SetPriority(aAssociatedStream->Priority() + 1);
}
bool
Http2PushedStream::GetPushComplete()
{
return mPushCompleted;
}
nsresult
Http2PushedStream::WriteSegments(nsAHttpSegmentWriter *writer,
uint32_t count, uint32_t *countWritten)
{
nsresult rv = Http2Stream::WriteSegments(writer, count, countWritten);
if (NS_SUCCEEDED(rv) && *countWritten) {
mLastRead = TimeStamp::Now();
}
if (rv == NS_BASE_STREAM_CLOSED) {
mPushCompleted = true;
rv = NS_OK; // this is what a normal HTTP transaction would do
}
if (rv != NS_BASE_STREAM_WOULD_BLOCK && NS_FAILED(rv))
mStatus = rv;
return rv;
}
nsresult
Http2PushedStream::ReadSegments(nsAHttpSegmentReader *,
uint32_t, uint32_t *count)
{
// The request headers for this has been processed, so we need to verify
// that :authority, :scheme, and :path MUST be present. :method MUST NOT be
// present
CreatePushHashKey(mHeaderScheme, mHeaderHost,
mSession->Serial(), mHeaderPath,
mOrigin, mHashKey);
LOG3(("Http2PushStream 0x%X hash key %s\n", mStreamID, mHashKey.get()));
// the write side of a pushed transaction just involves manipulating a little state
SetSentFin(true);
Http2Stream::mAllHeadersSent = 1;
Http2Stream::ChangeState(UPSTREAM_COMPLETE);
*count = 0;
return NS_OK;
}
bool
Http2PushedStream::GetHashKey(nsCString &key)
{
if (mHashKey.IsEmpty())
return false;
key = mHashKey;
return true;
}
void
Http2PushedStream::ConnectPushedStream(Http2Stream *stream)
{
mSession->ConnectPushedStream(stream);
}
bool
Http2PushedStream::IsOrphaned(TimeStamp now)
{
MOZ_ASSERT(!now.IsNull());
// if session is not transmitting, and is also not connected to a consumer
// stream, and its been like that for too long then it is oprhaned
if (mConsumerStream)
return false;
bool rv = ((now - mLastRead).ToSeconds() > 30.0);
if (rv) {
LOG3(("Http2PushedStream:IsOrphaned 0x%X IsOrphaned %3.2f\n",
mStreamID, (now - mLastRead).ToSeconds()));
}
return rv;
}
nsresult
Http2PushedStream::GetBufferedData(char *buf,
uint32_t count, uint32_t *countWritten)
{
if (NS_FAILED(mStatus))
return mStatus;
nsresult rv = mBufferedPush->GetBufferedData(buf, count, countWritten);
if (NS_FAILED(rv))
return rv;
if (!*countWritten)
rv = GetPushComplete() ? NS_BASE_STREAM_CLOSED : NS_BASE_STREAM_WOULD_BLOCK;
return rv;
}
//////////////////////////////////////////
// Http2PushTransactionBuffer
// This is the nsAHttpTransction owned by the stream when the pushed
// stream has not yet been matched with a pull request
//////////////////////////////////////////
NS_IMPL_ISUPPORTS0(Http2PushTransactionBuffer)
Http2PushTransactionBuffer::Http2PushTransactionBuffer()
: mStatus(NS_OK)
, mRequestHead(nullptr)
, mPushStream(nullptr)
, mIsDone(false)
, mBufferedHTTP1Size(kDefaultBufferSize)
, mBufferedHTTP1Used(0)
, mBufferedHTTP1Consumed(0)
{
mBufferedHTTP1 = new char[mBufferedHTTP1Size];
}
Http2PushTransactionBuffer::~Http2PushTransactionBuffer()
{
delete mRequestHead;
}
void
Http2PushTransactionBuffer::SetConnection(nsAHttpConnection *conn)
{
}
nsAHttpConnection *
Http2PushTransactionBuffer::Connection()
{
return nullptr;
}
void
Http2PushTransactionBuffer::GetSecurityCallbacks(nsIInterfaceRequestor **outCB)
{
*outCB = nullptr;
}
void
Http2PushTransactionBuffer::OnTransportStatus(nsITransport* transport,
nsresult status, uint64_t progress)
{
}
nsHttpConnectionInfo *
Http2PushTransactionBuffer::ConnectionInfo()
{
if (!mPushStream) {
return nullptr;
}
if (!mPushStream->Transaction()) {
return nullptr;
}
MOZ_ASSERT(mPushStream->Transaction() != this);
return mPushStream->Transaction()->ConnectionInfo();
}
bool
Http2PushTransactionBuffer::IsDone()
{
return mIsDone;
}
nsresult
Http2PushTransactionBuffer::Status()
{
return mStatus;
}
uint32_t
Http2PushTransactionBuffer::Caps()
{
return 0;
}
void
Http2PushTransactionBuffer::SetDNSWasRefreshed()
{
}
uint64_t
Http2PushTransactionBuffer::Available()
{
return mBufferedHTTP1Used - mBufferedHTTP1Consumed;
}
nsresult
Http2PushTransactionBuffer::ReadSegments(nsAHttpSegmentReader *reader,
uint32_t count, uint32_t *countRead)
{
*countRead = 0;
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
Http2PushTransactionBuffer::WriteSegments(nsAHttpSegmentWriter *writer,
uint32_t count, uint32_t *countWritten)
{
if ((mBufferedHTTP1Size - mBufferedHTTP1Used) < 20480) {
EnsureBuffer(mBufferedHTTP1,mBufferedHTTP1Size + kDefaultBufferSize,
mBufferedHTTP1Used, mBufferedHTTP1Size);
}
count = std::min(count, mBufferedHTTP1Size - mBufferedHTTP1Used);
nsresult rv = writer->OnWriteSegment(mBufferedHTTP1 + mBufferedHTTP1Used,
count, countWritten);
if (NS_SUCCEEDED(rv)) {
mBufferedHTTP1Used += *countWritten;
}
else if (rv == NS_BASE_STREAM_CLOSED) {
mIsDone = true;
}
if (Available()) {
Http2Stream *consumer = mPushStream->GetConsumerStream();
if (consumer) {
LOG3(("Http2PushTransactionBuffer::WriteSegments notifying connection "
"consumer data available 0x%X [%u]\n",
mPushStream->StreamID(), Available()));
mPushStream->ConnectPushedStream(consumer);
}
}
return rv;
}
uint32_t
Http2PushTransactionBuffer::Http1xTransactionCount()
{
return 0;
}
nsHttpRequestHead *
Http2PushTransactionBuffer::RequestHead()
{
if (!mRequestHead)
mRequestHead = new nsHttpRequestHead();
return mRequestHead;
}
nsresult
Http2PushTransactionBuffer::TakeSubTransactions(
nsTArray<nsRefPtr<nsAHttpTransaction> > &outTransactions)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
void
Http2PushTransactionBuffer::SetProxyConnectFailed()
{
}
void
Http2PushTransactionBuffer::Close(nsresult reason)
{
mStatus = reason;
mIsDone = true;
}
nsresult
Http2PushTransactionBuffer::AddTransaction(nsAHttpTransaction *trans)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
uint32_t
Http2PushTransactionBuffer::PipelineDepth()
{
return 0;
}
nsresult
Http2PushTransactionBuffer::SetPipelinePosition(int32_t position)
{
return NS_OK;
}
int32_t
Http2PushTransactionBuffer::PipelinePosition()
{
return 1;
}
nsresult
Http2PushTransactionBuffer::GetBufferedData(char *buf,
uint32_t count,
uint32_t *countWritten)
{
*countWritten = std::min(count, static_cast<uint32_t>(Available()));
if (*countWritten) {
memcpy(buf, mBufferedHTTP1 + mBufferedHTTP1Consumed, *countWritten);
mBufferedHTTP1Consumed += *countWritten;
}
// If all the data has been consumed then reset the buffer
if (mBufferedHTTP1Consumed == mBufferedHTTP1Used) {
mBufferedHTTP1Consumed = 0;
mBufferedHTTP1Used = 0;
}
return NS_OK;
}
} // namespace mozilla::net
} // namespace mozilla