зеркало из https://github.com/mozilla/gecko-dev.git
bug 599164 pipeline with type and state r=honzab
--HG-- extra : rebase_source : b060665a1726eab3e3ef0ab0d94c34cfea5c1460
This commit is contained in:
Patrick McManus
Родитель
92aaf5d2fc
Коммит
28c3c87c12
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@ -2779,6 +2779,10 @@ nsXMLHttpRequest::Send(nsIVariant *aBody)
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}
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}
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// Blocking gets are common enough out of XHR that we should mark
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// the channel slow by default for pipeline purposes
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AddLoadFlags(mChannel, nsIRequest::INHIBIT_PIPELINE);
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if (!IsSystemXHR()) {
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// Always create a nsCORSListenerProxy here even if it's
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// a same-origin request right now, since it could be redirected.
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@ -57,6 +57,8 @@
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#include "nsThreadUtils.h"
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#include "nsIThreadInternal.h"
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#include "nsContentUtils.h"
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#include "nsIRequest.h"
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#include "nsFrameManager.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIXPConnect.h"
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@ -2850,6 +2852,13 @@ void nsHTMLMediaElement::SetRequestHeaders(nsIHttpChannel* aChannel)
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// Send Accept header for video and audio types only (Bug 489071)
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SetAcceptHeader(aChannel);
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// Media elements are likely candidates for HTTP Pipeline head of line
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// blocking problems, so disable pipelines.
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nsLoadFlags loadflags;
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aChannel->GetLoadFlags(&loadflags);
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loadflags |= nsIRequest::INHIBIT_PIPELINE;
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aChannel->SetLoadFlags(loadflags);
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// Apache doesn't send Content-Length when gzip transfer encoding is used,
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// which prevents us from estimating the video length (if explicit Content-Duration
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// and a length spec in the container are not present either) and from seeking.
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@ -806,7 +806,13 @@ pref("network.http.pipelining.ssl" , false); // disable pipelining over SSL
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pref("network.http.proxy.pipelining", false);
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// Max number of requests in the pipeline
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pref("network.http.pipelining.maxrequests" , 4);
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pref("network.http.pipelining.maxrequests" , 32);
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// An optimistic request is one pipelined when policy might allow a new
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// connection instead
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pref("network.http.pipelining.max-optimistic-requests" , 4);
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pref("network.http.pipelining.aggressive", false);
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// Prompt for 307 redirects
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pref("network.http.prompt-temp-redirect", true);
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@ -159,6 +159,13 @@ interface nsIRequest : nsISupports
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* The following flags control the flow of data into the cache.
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*/
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/**
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* This flag prevents loading of the request with an HTTP pipeline.
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* Generally this is because the resource is expected to take a
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* while to load and may cause head of line blocking problems.
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*/
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const unsigned long INHIBIT_PIPELINE = 1 << 6;
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/**
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* This flag prevents caching of any kind. It does not, however, prevent
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* cached content from being used to satisfy this request.
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@ -2064,8 +2064,7 @@ SpdySession::SetSSLConnectFailed()
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bool
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SpdySession::IsDone()
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{
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NS_ABORT_IF_FALSE(false, "SpdySession::IsDone()");
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return false;
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return !mStreamTransactionHash.Count();
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}
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nsresult
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@ -2151,12 +2150,10 @@ SpdySession::AddTransaction(nsAHttpTransaction *)
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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PRUint16
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SpdySession::PipelineDepthAvailable()
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PRUint32
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SpdySession::PipelineDepth()
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{
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// any attempt at pipelining will be turned into parallelism
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return 0;
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return IsDone() ? 0 : 1;
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}
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nsresult
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@ -63,6 +63,8 @@ class nsAHttpTransaction : public nsISupports
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public:
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// called by the connection when it takes ownership of the transaction.
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virtual void SetConnection(nsAHttpConnection *) = 0;
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// used to obtain the connection associated with this transaction
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virtual nsAHttpConnection *Connection() = 0;
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// called by the connection to get security callbacks to set on the
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@ -121,14 +123,38 @@ public:
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// return NS_ERROR_NOT_IMPLEMENTED
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virtual nsresult AddTransaction(nsAHttpTransaction *transaction) = 0;
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// called to count the number of sub transactions that can be added
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virtual PRUint16 PipelineDepthAvailable() = 0;
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// The total length of the outstanding pipeline comprised of transacations
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// and sub-transactions.
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virtual PRUint32 PipelineDepth() = 0;
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// Used to inform the connection that it is being used in a pipelined
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// context. That may influence the handling of some errors.
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// The value is the pipeline position.
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// The value is the pipeline position (> 1).
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virtual nsresult SetPipelinePosition(PRInt32) = 0;
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virtual PRInt32 PipelinePosition() = 0;
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// Every transaction is classified into one of the types below. When using
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// HTTP pipelines, only transactions with the same type appear on the same
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// pipeline.
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enum Classifier {
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// Transactions that expect a short 304 (no-content) response
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CLASS_REVALIDATION,
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// Transactions for content expected to be CSS or JS
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CLASS_SCRIPT,
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// Transactions for content expected to be an image
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CLASS_IMAGE,
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// Transactions that cannot involve a pipeline
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CLASS_SOLO,
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// Transactions that do not fit any of the other categories. HTML
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// is normally GENERAL.
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CLASS_GENERAL,
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CLASS_MAX
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};
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};
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#define NS_DECL_NSAHTTPTRANSACTION \
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@ -150,7 +176,7 @@ public:
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PRUint32 Http1xTransactionCount(); \
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nsresult TakeSubTransactions(nsTArray<nsRefPtr<nsAHttpTransaction> > &outTransactions); \
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nsresult AddTransaction(nsAHttpTransaction *); \
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PRUint16 PipelineDepthAvailable(); \
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PRUint32 PipelineDepth(); \
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nsresult SetPipelinePosition(PRInt32); \
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PRInt32 PipelinePosition();
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@ -140,9 +140,6 @@ typedef PRUint8 nsHttpVersion;
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// some default values
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//-----------------------------------------------------------------------------
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// hard upper limit on the number of requests that can be pipelined
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#define NS_HTTP_MAX_PIPELINED_REQUESTS 8
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#define NS_HTTP_DEFAULT_PORT 80
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#define NS_HTTPS_DEFAULT_PORT 443
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@ -502,16 +502,17 @@ nsHttpChannel::SetupTransaction()
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if (mCaps & NS_HTTP_ALLOW_PIPELINING) {
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//
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// disable pipelining if:
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// (1) pipelining has been explicitly disabled
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// (2) request corresponds to a top-level document load (link click)
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// (3) request method is non-idempotent
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// (1) pipelining has been disabled by config
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// (2) pipelining has been disabled by connection mgr info
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// (3) request corresponds to a top-level document load (link click)
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// (4) request method is non-idempotent
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// (5) request is marked slow (e.g XHR)
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//
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// XXX does the toplevel document check really belong here? or, should
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// we push it out entirely to necko consumers?
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//
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if (!mAllowPipelining || (mLoadFlags & LOAD_INITIAL_DOCUMENT_URI) ||
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if (!mAllowPipelining ||
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(mLoadFlags & (LOAD_INITIAL_DOCUMENT_URI | INHIBIT_PIPELINE)) ||
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!(mRequestHead.Method() == nsHttp::Get ||
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mRequestHead.Method() == nsHttp::Head ||
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mRequestHead.Method() == nsHttp::Options ||
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mRequestHead.Method() == nsHttp::Propfind ||
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mRequestHead.Method() == nsHttp::Proppatch)) {
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LOG((" pipelining disallowed\n"));
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@ -1772,7 +1773,10 @@ nsHttpChannel::EnsureAssocReq()
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endofmethod - method)) {
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LOG((" Assoc-Req failure Method %s", method));
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if (mConnectionInfo)
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mConnectionInfo->BanPipelining();
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gHttpHandler->ConnMgr()->
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PipelineFeedbackInfo(mConnectionInfo,
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nsHttpConnectionMgr::RedCorruptedContent,
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nsnull, 0);
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nsCOMPtr<nsIConsoleService> consoleService =
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do_GetService(NS_CONSOLESERVICE_CONTRACTID);
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@ -1802,7 +1806,10 @@ nsHttpChannel::EnsureAssocReq()
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if (!equals) {
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LOG((" Assoc-Req failure URL %s", assoc_val));
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if (mConnectionInfo)
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mConnectionInfo->BanPipelining();
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gHttpHandler->ConnMgr()->
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PipelineFeedbackInfo(mConnectionInfo,
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nsHttpConnectionMgr::RedCorruptedContent,
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nsnull, 0);
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nsCOMPtr<nsIConsoleService> consoleService =
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do_GetService(NS_CONSOLESERVICE_CONTRACTID);
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@ -72,8 +72,6 @@ using namespace mozilla::net;
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nsHttpConnection::nsHttpConnection()
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: mTransaction(nsnull)
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, mLastReadTime(0)
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, mIdleTimeout(0)
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, mConsiderReusedAfterInterval(0)
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, mConsiderReusedAfterEpoch(0)
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, mCurrentBytesRead(0)
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@ -88,6 +86,7 @@ nsHttpConnection::nsHttpConnection()
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, mIdleMonitoring(false)
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, mProxyConnectInProgress(false)
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, mHttp1xTransactionCount(0)
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, mClassification(nsAHttpTransaction::CLASS_GENERAL)
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, mNPNComplete(false)
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, mSetupNPNCalled(false)
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, mUsingSpdy(false)
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@ -142,21 +141,25 @@ nsHttpConnection::Init(nsHttpConnectionInfo *info,
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nsIAsyncInputStream *instream,
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nsIAsyncOutputStream *outstream,
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nsIInterfaceRequestor *callbacks,
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nsIEventTarget *callbackTarget)
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nsIEventTarget *callbackTarget,
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PRIntervalTime rtt)
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{
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NS_ABORT_IF_FALSE(transport && instream && outstream,
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"invalid socket information");
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LOG(("nsHttpConnection::Init [this=%p "
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"transport=%p instream=%p outstream=%p]\n",
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this, transport, instream, outstream));
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"transport=%p instream=%p outstream=%p rtt=%d]\n",
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this, transport, instream, outstream,
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PR_IntervalToMilliseconds(rtt)));
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NS_ENSURE_ARG_POINTER(info);
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NS_ENSURE_TRUE(!mConnInfo, NS_ERROR_ALREADY_INITIALIZED);
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mConnInfo = info;
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mSupportsPipelining = mConnInfo->SupportsPipelining();
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mMaxHangTime = PR_SecondsToInterval(maxHangTime);
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mLastReadTime = PR_IntervalNow();
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mSupportsPipelining =
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gHttpHandler->ConnMgr()->SupportsPipelining(mConnInfo);
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mRtt = rtt;
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mMaxHangTime = PR_SecondsToInterval(maxHangTime);
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mSocketTransport = transport;
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mSocketIn = instream;
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@ -340,6 +343,9 @@ nsHttpConnection::Activate(nsAHttpTransaction *trans, PRUint8 caps, PRInt32 pri)
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NS_ENSURE_ARG_POINTER(trans);
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NS_ENSURE_TRUE(!mTransaction, NS_ERROR_IN_PROGRESS);
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// reset the read timers to wash away any idle time
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mLastReadTime = PR_IntervalNow();
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// Update security callbacks
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nsCOMPtr<nsIInterfaceRequestor> callbacks;
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nsCOMPtr<nsIEventTarget> callbackTarget;
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@ -537,7 +543,7 @@ nsHttpConnection::CanReuse()
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canReuse = mSpdySession->CanReuse();
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else
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canReuse = IsKeepAlive();
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canReuse = canReuse && (IdleTime() < mIdleTimeout) && IsAlive();
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// An idle persistent connection should not have data waiting to be read
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@ -622,21 +628,19 @@ nsHttpConnection::SupportsPipelining(nsHttpResponseHead *responseHead)
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if (mUsingSpdy)
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return false;
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// XXX there should be a strict mode available that disables this
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// blacklisting.
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// assuming connection is HTTP/1.1 with keep-alive enabled
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if (mConnInfo->UsingHttpProxy() && !mConnInfo->UsingSSL()) {
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// XXX check for bad proxy servers...
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return true;
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}
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// XXX what about checking for a Via header? (transparent proxies)
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// check for bad origin servers
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const char *val = responseHead->PeekHeader(nsHttp::Server);
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// If there is no server header we will assume it should not be banned
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// as facebook and some other prominent sites do this
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if (!val)
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return false; // no header, no love
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return true;
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// The blacklist is indexed by the first character. All of these servers are
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// known to return their identifier as the first thing in the server string,
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@ -663,6 +667,8 @@ nsHttpConnection::SupportsPipelining(nsHttpResponseHead *responseHead)
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for (int i = 0; bad_servers[index][i] != nsnull; i++) {
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if (!PL_strncmp (val, bad_servers[index][i], strlen (bad_servers[index][i]))) {
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LOG(("looks like this server does not support pipelining"));
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gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
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mConnInfo, nsHttpConnectionMgr::RedBannedServer, this , 0);
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return false;
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}
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}
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@ -718,11 +724,19 @@ nsHttpConnection::OnHeadersAvailable(nsAHttpTransaction *trans,
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mKeepAlive = true;
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else
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mKeepAlive = false;
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// We need at least version 1.1 to use pipelines
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gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
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mConnInfo, nsHttpConnectionMgr::RedVersionTooLow, this, 0);
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}
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else {
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// HTTP/1.1 connections are by default persistent
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if (val && !PL_strcasecmp(val, "close"))
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if (val && !PL_strcasecmp(val, "close")) {
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mKeepAlive = false;
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// persistent connections are required for pipelining to work
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gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
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mConnInfo, nsHttpConnectionMgr::BadExplicitClose, this, 0);
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}
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else {
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mKeepAlive = true;
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@ -741,7 +755,26 @@ nsHttpConnection::OnHeadersAvailable(nsAHttpTransaction *trans,
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// and also read it back. It is possible the ci status is
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// locked to false if pipelining has been banned on this ci due to
|
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// some kind of observed flaky behavior
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mSupportsPipelining = mConnInfo->SetSupportsPipelining(mSupportsPipelining);
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if (mSupportsPipelining) {
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// report the pipelining-compatible header to the connection manager
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// as positive feedback. This will undo 1 penalty point the host
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// may have accumulated in the past.
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gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
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mConnInfo, nsHttpConnectionMgr::NeutralExpectedOK, this, 0);
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mSupportsPipelining =
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gHttpHandler->ConnMgr()->SupportsPipelining(mConnInfo);
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}
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// If this connection is reserved for revalidations and we are
|
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// receiving a document that failed revalidation then switch the
|
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// classification to general to avoid pipelining more revalidations behind
|
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// it.
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if (mClassification == nsAHttpTransaction::CLASS_REVALIDATION &&
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responseHead->Status() != 304) {
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mClassification = nsAHttpTransaction::CLASS_GENERAL;
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}
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// if this connection is persistent, then the server may send a "Keep-Alive"
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// header specifying the maximum number of times the connection can be
|
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@ -758,13 +791,13 @@ nsHttpConnection::OnHeadersAvailable(nsAHttpTransaction *trans,
|
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if (cp)
|
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mIdleTimeout = PR_SecondsToInterval((PRUint32) atoi(cp + 8));
|
||||
else
|
||||
mIdleTimeout = gHttpHandler->IdleTimeout();
|
||||
mIdleTimeout = gHttpHandler->SpdyTimeout();
|
||||
}
|
||||
else {
|
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mIdleTimeout = gHttpHandler->SpdyTimeout();
|
||||
}
|
||||
|
||||
LOG(("Connection can be reused [this=%x idle-timeout=%usec]\n",
|
||||
LOG(("Connection can be reused [this=%p idle-timeout=%usec]\n",
|
||||
this, PR_IntervalToSeconds(mIdleTimeout)));
|
||||
}
|
||||
|
||||
|
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@ -939,6 +972,14 @@ nsHttpConnection::ResumeRecv()
|
|||
|
||||
NS_ASSERTION(PR_GetCurrentThread() == gSocketThread, "wrong thread");
|
||||
|
||||
// the mLastReadTime timestamp is used for finding slowish readers
|
||||
// and can be pretty sensitive. For that reason we actually reset it
|
||||
// when we ask to read (resume recv()) so that when we get called back
|
||||
// with actual read data in OnSocketReadable() we are only measuring
|
||||
// the latency between those two acts and not all the processing that
|
||||
// may get done before the ResumeRecv() call
|
||||
mLastReadTime = PR_IntervalNow();
|
||||
|
||||
if (mSocketIn)
|
||||
return mSocketIn->AsyncWait(this, 0, 0, nsnull);
|
||||
|
||||
|
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@ -1061,7 +1102,8 @@ nsHttpConnection::OnReadSegment(const char *buf,
|
|||
nsresult
|
||||
nsHttpConnection::OnSocketWritable()
|
||||
{
|
||||
LOG(("nsHttpConnection::OnSocketWritable [this=%x]\n", this));
|
||||
LOG(("nsHttpConnection::OnSocketWritable [this=%p] host=%s\n",
|
||||
this, mConnInfo->Host()));
|
||||
|
||||
nsresult rv;
|
||||
PRUint32 n;
|
||||
|
|
@ -1141,7 +1183,7 @@ nsHttpConnection::OnSocketWritable()
|
|||
nsISocketTransport::STATUS_WAITING_FOR,
|
||||
LL_ZERO);
|
||||
|
||||
rv = mSocketIn->AsyncWait(this, 0, 0, nsnull); // start reading
|
||||
rv = ResumeRecv(); // start reading
|
||||
again = false;
|
||||
}
|
||||
// write more to the socket until error or end-of-request...
|
||||
|
|
@ -1180,14 +1222,41 @@ nsHttpConnection::OnSocketReadable()
|
|||
LOG(("nsHttpConnection::OnSocketReadable [this=%x]\n", this));
|
||||
|
||||
PRIntervalTime now = PR_IntervalNow();
|
||||
PRIntervalTime delta = now - mLastReadTime;
|
||||
|
||||
if (mKeepAliveMask && ((now - mLastReadTime) >= mMaxHangTime)) {
|
||||
if (mKeepAliveMask && (delta >= mMaxHangTime)) {
|
||||
LOG(("max hang time exceeded!\n"));
|
||||
// give the handler a chance to create a new persistent connection to
|
||||
// this host if we've been busy for too long.
|
||||
mKeepAliveMask = false;
|
||||
gHttpHandler->ProcessPendingQ(mConnInfo);
|
||||
}
|
||||
|
||||
// Look for data being sent in bursts with large pauses. If the pauses
|
||||
// are caused by server bottlenecks such as think-time, disk i/o, or
|
||||
// cpu exhaustion (as opposed to network latency) then we generate negative
|
||||
// pipelining feedback to prevent head of line problems
|
||||
|
||||
// Reduce the estimate of the time since last read by up to 1 RTT to
|
||||
// accommodate exhausted sender TCP congestion windows or minor I/O delays.
|
||||
|
||||
if (delta > mRtt)
|
||||
delta -= mRtt;
|
||||
else
|
||||
delta = 0;
|
||||
|
||||
const PRIntervalTime k400ms = PR_MillisecondsToInterval(400);
|
||||
const PRIntervalTime k1200ms = PR_MillisecondsToInterval(1200);
|
||||
|
||||
if (delta > k1200ms) {
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::BadSlowReadMajor, this, 0);
|
||||
}
|
||||
else if (delta > k400ms) {
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::BadSlowReadMinor, this, 0);
|
||||
}
|
||||
|
||||
mLastReadTime = now;
|
||||
|
||||
nsresult rv;
|
||||
|
|
@ -1209,7 +1278,7 @@ nsHttpConnection::OnSocketReadable()
|
|||
if (NS_FAILED(mSocketInCondition)) {
|
||||
// continue waiting for the socket if necessary...
|
||||
if (mSocketInCondition == NS_BASE_STREAM_WOULD_BLOCK)
|
||||
rv = mSocketIn->AsyncWait(this, 0, 0, nsnull);
|
||||
rv = ResumeRecv();
|
||||
else
|
||||
rv = mSocketInCondition;
|
||||
again = false;
|
||||
|
|
|
|||
|
|
@ -47,6 +47,7 @@
|
|||
#include "nsAutoPtr.h"
|
||||
#include "prinrval.h"
|
||||
#include "SpdySession.h"
|
||||
#include "mozilla/TimeStamp.h"
|
||||
|
||||
#include "nsIStreamListener.h"
|
||||
#include "nsISocketTransport.h"
|
||||
|
|
@ -92,7 +93,7 @@ public:
|
|||
nsresult Init(nsHttpConnectionInfo *info, PRUint16 maxHangTime,
|
||||
nsISocketTransport *, nsIAsyncInputStream *,
|
||||
nsIAsyncOutputStream *, nsIInterfaceRequestor *,
|
||||
nsIEventTarget *);
|
||||
nsIEventTarget *, PRIntervalTime);
|
||||
|
||||
// Activate causes the given transaction to be processed on this
|
||||
// connection. It fails if there is already an existing transaction unless
|
||||
|
|
@ -105,7 +106,7 @@ public:
|
|||
//-------------------------------------------------------------------------
|
||||
// XXX document when these are ok to call
|
||||
|
||||
bool SupportsPipelining() { return mSupportsPipelining; }
|
||||
bool SupportsPipelining() { return mSupportsPipelining && IsKeepAlive(); }
|
||||
bool IsKeepAlive() { return mUsingSpdy ||
|
||||
(mKeepAliveMask && mKeepAlive); }
|
||||
bool CanReuse(); // can this connection be reused?
|
||||
|
|
@ -168,6 +169,12 @@ public:
|
|||
// When the connection is active this is called every 15 seconds
|
||||
void ReadTimeoutTick(PRIntervalTime now);
|
||||
|
||||
nsAHttpTransaction::Classifier Classification() { return mClassification; }
|
||||
void Classify(nsAHttpTransaction::Classifier newclass)
|
||||
{
|
||||
mClassification = newclass;
|
||||
}
|
||||
|
||||
private:
|
||||
// called to cause the underlying socket to start speaking SSL
|
||||
nsresult ProxyStartSSL();
|
||||
|
|
@ -217,7 +224,7 @@ private:
|
|||
|
||||
nsRefPtr<nsHttpConnectionInfo> mConnInfo;
|
||||
|
||||
PRUint32 mLastReadTime;
|
||||
PRIntervalTime mLastReadTime;
|
||||
PRIntervalTime mMaxHangTime; // max download time before dropping keep-alive status
|
||||
PRIntervalTime mIdleTimeout; // value of keep-alive: timeout=
|
||||
PRIntervalTime mConsiderReusedAfterInterval;
|
||||
|
|
@ -228,6 +235,8 @@ private:
|
|||
|
||||
nsRefPtr<nsIAsyncInputStream> mInputOverflow;
|
||||
|
||||
PRIntervalTime mRtt;
|
||||
|
||||
bool mKeepAlive;
|
||||
bool mKeepAliveMask;
|
||||
bool mSupportsPipelining;
|
||||
|
|
@ -241,6 +250,8 @@ private:
|
|||
// excludes spdy transactions.
|
||||
PRUint32 mHttp1xTransactionCount;
|
||||
|
||||
nsAHttpTransaction::Classifier mClassification;
|
||||
|
||||
// SPDY related
|
||||
bool mNPNComplete;
|
||||
bool mSetupNPNCalled;
|
||||
|
|
|
|||
|
|
@ -100,27 +100,6 @@ nsHttpConnectionInfo::Clone() const
|
|||
return clone;
|
||||
}
|
||||
|
||||
bool
|
||||
nsHttpConnectionInfo::SupportsPipelining()
|
||||
{
|
||||
return mSupportsPipelining;
|
||||
}
|
||||
|
||||
bool
|
||||
nsHttpConnectionInfo::SetSupportsPipelining(bool support)
|
||||
{
|
||||
if (!mBannedPipelining)
|
||||
mSupportsPipelining = support;
|
||||
return mSupportsPipelining;
|
||||
}
|
||||
|
||||
void
|
||||
nsHttpConnectionInfo::BanPipelining()
|
||||
{
|
||||
mBannedPipelining = true;
|
||||
mSupportsPipelining = false;
|
||||
}
|
||||
|
||||
bool
|
||||
nsHttpConnectionInfo::ShouldForceConnectMethod()
|
||||
{
|
||||
|
|
|
|||
|
|
@ -60,8 +60,6 @@ public:
|
|||
: mRef(0)
|
||||
, mProxyInfo(proxyInfo)
|
||||
, mUsingSSL(usingSSL)
|
||||
, mSupportsPipelining(false)
|
||||
, mBannedPipelining(false)
|
||||
{
|
||||
LOG(("Creating nsHttpConnectionInfo @%x\n", this));
|
||||
|
||||
|
|
@ -131,10 +129,6 @@ public:
|
|||
bool ShouldForceConnectMethod();
|
||||
const nsCString &GetHost() { return mHost; }
|
||||
|
||||
bool SupportsPipelining();
|
||||
bool SetSupportsPipelining(bool support);
|
||||
void BanPipelining();
|
||||
|
||||
private:
|
||||
nsrefcnt mRef;
|
||||
nsCString mHashKey;
|
||||
|
|
@ -143,8 +137,6 @@ private:
|
|||
nsCOMPtr<nsProxyInfo> mProxyInfo;
|
||||
bool mUsingHttpProxy;
|
||||
bool mUsingSSL;
|
||||
bool mSupportsPipelining;
|
||||
bool mBannedPipelining;
|
||||
};
|
||||
|
||||
#endif // nsHttpConnectionInfo_h__
|
||||
|
|
|
|||
Разница между файлами не показана из-за своего большого размера
Загрузить разницу
|
|
@ -49,6 +49,7 @@
|
|||
#include "nsAutoPtr.h"
|
||||
#include "mozilla/ReentrantMonitor.h"
|
||||
#include "nsISocketTransportService.h"
|
||||
#include "mozilla/TimeStamp.h"
|
||||
|
||||
#include "nsIObserver.h"
|
||||
#include "nsITimer.h"
|
||||
|
|
@ -72,7 +73,8 @@ public:
|
|||
MAX_PERSISTENT_CONNECTIONS_PER_HOST,
|
||||
MAX_PERSISTENT_CONNECTIONS_PER_PROXY,
|
||||
MAX_REQUEST_DELAY,
|
||||
MAX_PIPELINED_REQUESTS
|
||||
MAX_PIPELINED_REQUESTS,
|
||||
MAX_OPTIMISTIC_PIPELINED_REQUESTS
|
||||
};
|
||||
|
||||
//-------------------------------------------------------------------------
|
||||
|
|
@ -87,7 +89,8 @@ public:
|
|||
PRUint16 maxPersistentConnectionsPerHost,
|
||||
PRUint16 maxPersistentConnectionsPerProxy,
|
||||
PRUint16 maxRequestDelay,
|
||||
PRUint16 maxPipelinedRequests);
|
||||
PRUint16 maxPipelinedRequests,
|
||||
PRUint16 maxOptimisticPipelinedRequests);
|
||||
nsresult Shutdown();
|
||||
|
||||
//-------------------------------------------------------------------------
|
||||
|
|
@ -138,17 +141,73 @@ public:
|
|||
void ReportSpdyAlternateProtocol(nsHttpConnection *);
|
||||
void RemoveSpdyAlternateProtocol(nsACString &key);
|
||||
|
||||
// Pipielining Interfaces and Datatypes
|
||||
|
||||
const static PRUint32 kPipelineInfoTypeMask = 0xffff0000;
|
||||
const static PRUint32 kPipelineInfoIDMask = ~kPipelineInfoTypeMask;
|
||||
|
||||
const static PRUint32 kPipelineInfoTypeRed = 0x00010000;
|
||||
const static PRUint32 kPipelineInfoTypeBad = 0x00020000;
|
||||
const static PRUint32 kPipelineInfoTypeNeutral = 0x00040000;
|
||||
const static PRUint32 kPipelineInfoTypeGood = 0x00080000;
|
||||
|
||||
enum PipelineFeedbackInfoType
|
||||
{
|
||||
// Used when an HTTP response less than 1.1 is received
|
||||
RedVersionTooLow = kPipelineInfoTypeRed | kPipelineInfoTypeBad | 0x0001,
|
||||
|
||||
// Used when a HTTP Server response header that is on the banned from
|
||||
// pipelining list is received
|
||||
RedBannedServer = kPipelineInfoTypeRed | kPipelineInfoTypeBad | 0x0002,
|
||||
|
||||
// Used when a response is terminated early, or when it fails an
|
||||
// integrity check such as assoc-req or md5
|
||||
RedCorruptedContent = kPipelineInfoTypeRed | kPipelineInfoTypeBad | 0x0004,
|
||||
|
||||
// Used when a pipeline is only partly satisfied - for instance if the
|
||||
// server closed the connection after responding to the first
|
||||
// request but left some requests unprocessed.
|
||||
RedCanceledPipeline = kPipelineInfoTypeRed | kPipelineInfoTypeBad | 0x0005,
|
||||
|
||||
// Used when a connection that we expected to stay persistently open
|
||||
// was closed by the server. Not used when simply timed out.
|
||||
BadExplicitClose = kPipelineInfoTypeBad | 0x0003,
|
||||
|
||||
// Used when there is a gap of around 400 - 1200ms in between data being
|
||||
// read from the server
|
||||
BadSlowReadMinor = kPipelineInfoTypeBad | 0x0006,
|
||||
|
||||
// Used when there is a gap of > 1200ms in between data being
|
||||
// read from the server
|
||||
BadSlowReadMajor = kPipelineInfoTypeBad | 0x0007,
|
||||
|
||||
// Used when a response is received that is not framed with either chunked
|
||||
// encoding or a complete content length.
|
||||
BadInsufficientFraming = kPipelineInfoTypeBad | 0x0008,
|
||||
|
||||
// Used when a response is received that has headers that appear to support
|
||||
// pipelining.
|
||||
NeutralExpectedOK = kPipelineInfoTypeNeutral | 0x0009,
|
||||
|
||||
// Used when a response is received successfully to a pipelined request.
|
||||
GoodCompletedOK = kPipelineInfoTypeGood | 0x000A
|
||||
};
|
||||
|
||||
// called to provide information relevant to the pipelining manager
|
||||
// may be called from any thread
|
||||
void PipelineFeedbackInfo(nsHttpConnectionInfo *,
|
||||
PipelineFeedbackInfoType info,
|
||||
nsHttpConnection *,
|
||||
PRUint32);
|
||||
|
||||
//-------------------------------------------------------------------------
|
||||
// NOTE: functions below may be called only on the socket thread.
|
||||
//-------------------------------------------------------------------------
|
||||
|
||||
// removes the next transactions for the specified connection from the
|
||||
// pending transaction queue.
|
||||
void AddTransactionToPipeline(nsHttpPipeline *);
|
||||
|
||||
// called to force the transaction queue to be processed once more, giving
|
||||
// preference to the specified connection.
|
||||
nsresult ProcessPendingQ(nsHttpConnectionInfo *);
|
||||
bool ProcessPendingQForEntry(nsHttpConnectionInfo *);
|
||||
|
||||
// This is used to force an idle connection to be closed and removed from
|
||||
// the idle connection list. It is called when the idle connection detects
|
||||
|
|
@ -161,29 +220,40 @@ public:
|
|||
void ReportSpdyConnection(nsHttpConnection *, bool usingSpdy);
|
||||
|
||||
|
||||
// Similar to ProcessPendingQ, but only considers adding transactions to
|
||||
// existing connections
|
||||
bool ProcessPipelinePendingQForCI(nsHttpConnectionInfo *);
|
||||
bool SupportsPipelining(nsHttpConnectionInfo *);
|
||||
|
||||
private:
|
||||
virtual ~nsHttpConnectionMgr();
|
||||
class nsHalfOpenSocket;
|
||||
|
||||
enum PipeliningState {
|
||||
// Host has proven itself pipeline capable through past experience and
|
||||
// large pipeline depths are allowed on multiple connections.
|
||||
PS_GREEN,
|
||||
|
||||
// Not enough information is available yet with this host to be certain
|
||||
// of pipeline capability. Small pipelines on a single connection are
|
||||
// allowed in order to decide whether or not to proceed to green.
|
||||
PS_YELLOW,
|
||||
|
||||
// One or more bad events has happened that indicate that pipelining
|
||||
// to this host (or a particular type of transaction with this host)
|
||||
// is a bad idea. Pipelining is not currently allowed, but time and
|
||||
// other positive experiences will eventually allow it to try again.
|
||||
PS_RED
|
||||
};
|
||||
|
||||
class nsHalfOpenSocket;
|
||||
|
||||
// nsConnectionEntry
|
||||
//
|
||||
// mCT maps connection info hash key to nsConnectionEntry object, which
|
||||
// contains list of active and idle connections as well as the list of
|
||||
// pending transactions.
|
||||
//
|
||||
struct nsConnectionEntry
|
||||
class nsConnectionEntry
|
||||
{
|
||||
nsConnectionEntry(nsHttpConnectionInfo *ci)
|
||||
: mConnInfo(ci),
|
||||
mUsingSpdy(false),
|
||||
mTestedSpdy(false),
|
||||
mSpdyPreferred(false)
|
||||
{
|
||||
NS_ADDREF(mConnInfo);
|
||||
}
|
||||
public:
|
||||
nsConnectionEntry(nsHttpConnectionInfo *ci);
|
||||
~nsConnectionEntry();
|
||||
|
||||
nsHttpConnectionInfo *mConnInfo;
|
||||
|
|
@ -192,6 +262,54 @@ private:
|
|||
nsTArray<nsHttpConnection*> mIdleConns; // idle persistent connections
|
||||
nsTArray<nsHalfOpenSocket*> mHalfOpens;
|
||||
|
||||
// Pipeline depths for various states
|
||||
const static PRUint32 kPipelineUnlimited = 1024; // fully open - extended green
|
||||
const static PRUint32 kPipelineOpen = 6; // 6 on each conn - normal green
|
||||
const static PRUint32 kPipelineRestricted = 2; // 2 on just 1 conn in yellow
|
||||
|
||||
nsHttpConnectionMgr::PipeliningState PipelineState();
|
||||
void OnPipelineFeedbackInfo(
|
||||
nsHttpConnectionMgr::PipelineFeedbackInfoType info,
|
||||
nsHttpConnection *, PRUint32);
|
||||
bool SupportsPipelining();
|
||||
PRUint32 MaxPipelineDepth(nsAHttpTransaction::Classifier classification);
|
||||
void CreditPenalty();
|
||||
|
||||
nsHttpConnectionMgr::PipeliningState mPipelineState;
|
||||
|
||||
void SetYellowConnection(nsHttpConnection *);
|
||||
void OnYellowComplete();
|
||||
PRUint32 mYellowGoodEvents;
|
||||
PRUint32 mYellowBadEvents;
|
||||
nsHttpConnection *mYellowConnection;
|
||||
|
||||
// initialGreenDepth is the max depth of a pipeline when you first
|
||||
// transition to green. Normally this is kPipelineOpen, but it can
|
||||
// be kPipelineUnlimited in aggressive mode.
|
||||
PRUint32 mInitialGreenDepth;
|
||||
|
||||
// greenDepth is the current max allowed depth of a pipeline when
|
||||
// in the green state. Normally this starts as kPipelineOpen and
|
||||
// grows to kPipelineUnlimited after a pipeline of depth 3 has been
|
||||
// successfully transacted.
|
||||
PRUint32 mGreenDepth;
|
||||
|
||||
// pipeliningPenalty is the current amount of penalty points this host
|
||||
// entry has earned for participating in events that are not conducive
|
||||
// to good pipelines - such as head of line blocking, canceled pipelines,
|
||||
// etc.. penalties are paid back either through elapsed time or simply
|
||||
// healthy transactions. Having penalty points means that this host is
|
||||
// not currently eligible for pipelines.
|
||||
PRInt16 mPipeliningPenalty;
|
||||
|
||||
// some penalty points only apply to particular classifications of
|
||||
// transactions - this allows a server that perhaps has head of line
|
||||
// blocking problems on CGI queries to still serve JS pipelined.
|
||||
PRInt16 mPipeliningClassPenalty[nsAHttpTransaction::CLASS_MAX];
|
||||
|
||||
// for calculating penalty repair credits
|
||||
mozilla::TimeStamp mLastCreditTime;
|
||||
|
||||
// Spdy sometimes resolves the address in the socket manager in order
|
||||
// to re-coalesce sharded HTTP hosts. The dotted decimal address is
|
||||
// combined with the Anonymous flag from the connection information
|
||||
|
|
@ -276,6 +394,9 @@ private:
|
|||
nsCOMPtr<nsIAsyncOutputStream> mStreamOut;
|
||||
nsCOMPtr<nsIAsyncInputStream> mStreamIn;
|
||||
|
||||
mozilla::TimeStamp mPrimarySynStarted;
|
||||
mozilla::TimeStamp mBackupSynStarted;
|
||||
|
||||
// for syn retry
|
||||
nsCOMPtr<nsITimer> mSynTimer;
|
||||
nsCOMPtr<nsISocketTransport> mBackupTransport;
|
||||
|
|
@ -300,7 +421,7 @@ private:
|
|||
PRUint16 mMaxPersistConnsPerProxy;
|
||||
PRUint16 mMaxRequestDelay; // in seconds
|
||||
PRUint16 mMaxPipelinedRequests;
|
||||
|
||||
PRUint16 mMaxOptimisticPipelinedRequests;
|
||||
bool mIsShuttingDown;
|
||||
|
||||
//-------------------------------------------------------------------------
|
||||
|
|
@ -314,13 +435,18 @@ private:
|
|||
static PLDHashOperator PurgeExcessIdleConnectionsCB(const nsACString &, nsAutoPtr<nsConnectionEntry> &, void *);
|
||||
static PLDHashOperator ClosePersistentConnectionsCB(const nsACString &, nsAutoPtr<nsConnectionEntry> &, void *);
|
||||
bool ProcessPendingQForEntry(nsConnectionEntry *);
|
||||
bool IsUnderPressure(nsConnectionEntry *ent,
|
||||
nsHttpTransaction::Classifier classification);
|
||||
bool AtActiveConnectionLimit(nsConnectionEntry *, PRUint8 caps);
|
||||
bool ProcessPipelinePendingQForEntry(nsConnectionEntry *);
|
||||
void GetConnection(nsConnectionEntry *, nsHttpTransaction *,
|
||||
bool, nsHttpConnection **);
|
||||
nsresult DispatchTransaction(nsConnectionEntry *, nsHttpTransaction *,
|
||||
PRUint8 caps, nsHttpConnection *);
|
||||
bool BuildPipeline(nsConnectionEntry *, nsAHttpTransaction *, nsHttpPipeline **);
|
||||
nsresult TryDispatchTransaction(nsConnectionEntry *ent,
|
||||
bool onlyReusedConnection,
|
||||
nsHttpTransaction *trans);
|
||||
nsresult DispatchTransaction(nsConnectionEntry *,
|
||||
nsHttpTransaction *,
|
||||
nsHttpConnection *);
|
||||
nsresult BuildPipeline(nsConnectionEntry *,
|
||||
nsAHttpTransaction *,
|
||||
nsHttpPipeline **);
|
||||
nsresult ProcessNewTransaction(nsHttpTransaction *);
|
||||
nsresult EnsureSocketThreadTargetIfOnline();
|
||||
void ClosePersistentConnections(nsConnectionEntry *ent);
|
||||
|
|
@ -329,6 +455,13 @@ private:
|
|||
void StartedConnect();
|
||||
void RecvdConnect();
|
||||
|
||||
bool MakeNewConnection(nsConnectionEntry *ent,
|
||||
nsHttpTransaction *trans);
|
||||
bool AddToShortestPipeline(nsConnectionEntry *ent,
|
||||
nsHttpTransaction *trans,
|
||||
nsHttpTransaction::Classifier classification,
|
||||
PRUint16 depthLimit);
|
||||
|
||||
// Manage the preferred spdy connection entry for this address
|
||||
nsConnectionEntry *GetSpdyPreferredEnt(nsConnectionEntry *aOriginalEntry);
|
||||
void RemoveSpdyPreferredEnt(nsACString &aDottedDecimal);
|
||||
|
|
@ -401,6 +534,7 @@ private:
|
|||
void OnMsgReclaimConnection (PRInt32, void *);
|
||||
void OnMsgUpdateParam (PRInt32, void *);
|
||||
void OnMsgClosePersistentConnections (PRInt32, void *);
|
||||
void OnMsgProcessFeedback (PRInt32, void *);
|
||||
|
||||
// Total number of active connections in all of the ConnectionEntry objects
|
||||
// that are accessed from mCT connection table.
|
||||
|
|
|
|||
|
|
@ -185,7 +185,9 @@ nsHttpHandler::nsHttpHandler()
|
|||
, mMaxConnectionsPerServer(8)
|
||||
, mMaxPersistentConnectionsPerServer(2)
|
||||
, mMaxPersistentConnectionsPerProxy(4)
|
||||
, mMaxPipelinedRequests(2)
|
||||
, mMaxPipelinedRequests(32)
|
||||
, mMaxOptimisticPipelinedRequests(4)
|
||||
, mPipelineAggressive(false)
|
||||
, mRedirectionLimit(10)
|
||||
, mPhishyUserPassLength(1)
|
||||
, mQoSBits(0x00)
|
||||
|
|
@ -364,7 +366,8 @@ nsHttpHandler::InitConnectionMgr()
|
|||
mMaxPersistentConnectionsPerServer,
|
||||
mMaxPersistentConnectionsPerProxy,
|
||||
mMaxRequestDelay,
|
||||
mMaxPipelinedRequests);
|
||||
mMaxPipelinedRequests,
|
||||
mMaxOptimisticPipelinedRequests);
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
|
@ -1016,13 +1019,31 @@ nsHttpHandler::PrefsChanged(nsIPrefBranch *prefs, const char *pref)
|
|||
if (PREF_CHANGED(HTTP_PREF("pipelining.maxrequests"))) {
|
||||
rv = prefs->GetIntPref(HTTP_PREF("pipelining.maxrequests"), &val);
|
||||
if (NS_SUCCEEDED(rv)) {
|
||||
mMaxPipelinedRequests = clamped(val, 1, NS_HTTP_MAX_PIPELINED_REQUESTS);
|
||||
mMaxPipelinedRequests = clamped(val, 1, 0xffff);
|
||||
if (mConnMgr)
|
||||
mConnMgr->UpdateParam(nsHttpConnectionMgr::MAX_PIPELINED_REQUESTS,
|
||||
mMaxPipelinedRequests);
|
||||
}
|
||||
}
|
||||
|
||||
if (PREF_CHANGED(HTTP_PREF("pipelining.max-optimistic-requests"))) {
|
||||
rv = prefs->
|
||||
GetIntPref(HTTP_PREF("pipelining.max-optimistic-requests"), &val);
|
||||
if (NS_SUCCEEDED(rv)) {
|
||||
mMaxOptimisticPipelinedRequests = clamped(val, 1, 0xffff);
|
||||
if (mConnMgr)
|
||||
mConnMgr->UpdateParam
|
||||
(nsHttpConnectionMgr::MAX_OPTIMISTIC_PIPELINED_REQUESTS,
|
||||
mMaxOptimisticPipelinedRequests);
|
||||
}
|
||||
}
|
||||
|
||||
if (PREF_CHANGED(HTTP_PREF("pipelining.aggressive"))) {
|
||||
rv = prefs->GetBoolPref(HTTP_PREF("pipelining.aggressive"), &cVar);
|
||||
if (NS_SUCCEEDED(rv))
|
||||
mPipelineAggressive = cVar;
|
||||
}
|
||||
|
||||
if (PREF_CHANGED(HTTP_PREF("pipelining.ssl"))) {
|
||||
rv = prefs->GetBoolPref(HTTP_PREF("pipelining.ssl"), &cVar);
|
||||
if (NS_SUCCEEDED(rv))
|
||||
|
|
|
|||
|
|
@ -232,6 +232,8 @@ public:
|
|||
static nsresult GenerateHostPort(const nsCString& host, PRInt32 port,
|
||||
nsCString& hostLine);
|
||||
|
||||
bool GetPipelineAggressive() { return mPipelineAggressive; }
|
||||
|
||||
private:
|
||||
|
||||
//
|
||||
|
|
@ -288,7 +290,9 @@ private:
|
|||
PRUint8 mMaxConnectionsPerServer;
|
||||
PRUint8 mMaxPersistentConnectionsPerServer;
|
||||
PRUint8 mMaxPersistentConnectionsPerProxy;
|
||||
PRUint8 mMaxPipelinedRequests;
|
||||
PRUint16 mMaxPipelinedRequests;
|
||||
PRUint16 mMaxOptimisticPipelinedRequests;
|
||||
bool mPipelineAggressive;
|
||||
|
||||
PRUint8 mRedirectionLimit;
|
||||
|
||||
|
|
|
|||
|
|
@ -92,9 +92,8 @@ private:
|
|||
// nsHttpPipeline <public>
|
||||
//-----------------------------------------------------------------------------
|
||||
|
||||
nsHttpPipeline::nsHttpPipeline(PRUint16 maxPipelineDepth)
|
||||
: mMaxPipelineDepth(maxPipelineDepth)
|
||||
, mConnection(nsnull)
|
||||
nsHttpPipeline::nsHttpPipeline()
|
||||
: mConnection(nsnull)
|
||||
, mStatus(NS_OK)
|
||||
, mRequestIsPartial(false)
|
||||
, mResponseIsPartial(false)
|
||||
|
|
@ -131,7 +130,7 @@ nsHttpPipeline::AddTransaction(nsAHttpTransaction *trans)
|
|||
|
||||
NS_ADDREF(trans);
|
||||
mRequestQ.AppendElement(trans);
|
||||
PRInt32 qlen = mRequestQ.Length();
|
||||
PRUint32 qlen = PipelineDepth();
|
||||
|
||||
if (qlen != 1) {
|
||||
trans->SetPipelinePosition(qlen);
|
||||
|
|
@ -142,34 +141,20 @@ nsHttpPipeline::AddTransaction(nsAHttpTransaction *trans)
|
|||
trans->SetPipelinePosition(0);
|
||||
}
|
||||
|
||||
if (mConnection && !mClosed) {
|
||||
trans->SetConnection(this);
|
||||
if (qlen == 1)
|
||||
mConnection->ResumeSend();
|
||||
}
|
||||
// trans->SetConnection() needs to be updated to point back at
|
||||
// the pipeline object.
|
||||
trans->SetConnection(this);
|
||||
|
||||
if (mConnection && !mClosed && mRequestQ.Length() == 1)
|
||||
mConnection->ResumeSend();
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
PRUint16
|
||||
nsHttpPipeline::PipelineDepthAvailable()
|
||||
PRUint32
|
||||
nsHttpPipeline::PipelineDepth()
|
||||
{
|
||||
PRUint16 currentTransactions = mRequestQ.Length() + mResponseQ.Length();
|
||||
|
||||
// Check to see if there are too many transactions currently in use.
|
||||
if (currentTransactions >= mMaxPipelineDepth)
|
||||
return 0;
|
||||
|
||||
// Check to see if this connection is being used by a non-pipelineable
|
||||
// transaction already.
|
||||
nsAHttpTransaction *trans = Request(0);
|
||||
if (!trans)
|
||||
trans = Response(0);
|
||||
if (trans && !(trans->Caps() & NS_HTTP_ALLOW_PIPELINING))
|
||||
return 0;
|
||||
|
||||
// There is still some room available.
|
||||
return mMaxPipelineDepth - currentTransactions;
|
||||
return mRequestQ.Length() + mResponseQ.Length();
|
||||
}
|
||||
|
||||
nsresult
|
||||
|
|
@ -223,7 +208,7 @@ nsHttpPipeline::OnHeadersAvailable(nsAHttpTransaction *trans,
|
|||
|
||||
NS_ABORT_IF_FALSE(ci, "no connection info");
|
||||
|
||||
bool pipeliningBefore = ci->SupportsPipelining();
|
||||
bool pipeliningBefore = gHttpHandler->ConnMgr()->SupportsPipelining(ci);
|
||||
|
||||
// trans has now received its response headers; forward to the real connection
|
||||
nsresult rv = mConnection->OnHeadersAvailable(trans,
|
||||
|
|
@ -231,10 +216,10 @@ nsHttpPipeline::OnHeadersAvailable(nsAHttpTransaction *trans,
|
|||
responseHead,
|
||||
reset);
|
||||
|
||||
if (!pipeliningBefore && ci->SupportsPipelining())
|
||||
if (!pipeliningBefore && gHttpHandler->ConnMgr()->SupportsPipelining(ci))
|
||||
// The received headers have expanded the eligible
|
||||
// pipeline depth for this connection
|
||||
gHttpHandler->ConnMgr()->ProcessPipelinePendingQForCI(ci);
|
||||
gHttpHandler->ConnMgr()->ProcessPendingQForEntry(ci);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
|
@ -261,7 +246,7 @@ nsHttpPipeline::CloseTransaction(nsAHttpTransaction *trans, nsresult reason)
|
|||
LOG(("nsHttpPipeline::CloseTransaction [this=%x trans=%x reason=%x]\n",
|
||||
this, trans, reason));
|
||||
|
||||
NS_ASSERTION(PR_GetCurrentThread() == gSocketThread, "wrong thread");
|
||||
NS_ABORT_IF_FALSE(PR_GetCurrentThread() == gSocketThread, "wrong thread");
|
||||
NS_ASSERTION(NS_FAILED(reason), "expecting failure code");
|
||||
|
||||
// the specified transaction is to be closed with the given "reason"
|
||||
|
|
@ -303,7 +288,11 @@ nsHttpPipeline::CloseTransaction(nsAHttpTransaction *trans, nsresult reason)
|
|||
void
|
||||
nsHttpPipeline::GetConnectionInfo(nsHttpConnectionInfo **result)
|
||||
{
|
||||
NS_ASSERTION(mConnection, "no connection");
|
||||
if (!mConnection) {
|
||||
*result = nsnull;
|
||||
return;
|
||||
}
|
||||
|
||||
mConnection->GetConnectionInfo(result);
|
||||
}
|
||||
|
||||
|
|
@ -341,7 +330,7 @@ nsHttpPipeline::PushBack(const char *data, PRUint32 length)
|
|||
{
|
||||
LOG(("nsHttpPipeline::PushBack [this=%x len=%u]\n", this, length));
|
||||
|
||||
NS_ASSERTION(PR_GetCurrentThread() == gSocketThread, "wrong thread");
|
||||
NS_ABORT_IF_FALSE(PR_GetCurrentThread() == gSocketThread, "wrong thread");
|
||||
NS_ASSERTION(mPushBackLen == 0, "push back buffer already has data!");
|
||||
|
||||
// If we have no chance for a pipeline (e.g. due to an Upgrade)
|
||||
|
|
@ -471,7 +460,7 @@ nsHttpPipeline::TakeSubTransactions(
|
|||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// nsHttpPipeline::nsAHttpConnection
|
||||
// nsHttpPipeline::nsAHttpTransaction
|
||||
//-----------------------------------------------------------------------------
|
||||
|
||||
void
|
||||
|
|
@ -483,10 +472,6 @@ nsHttpPipeline::SetConnection(nsAHttpConnection *conn)
|
|||
NS_ASSERTION(!mConnection, "already have a connection");
|
||||
|
||||
NS_IF_ADDREF(mConnection = conn);
|
||||
|
||||
PRInt32 i, count = mRequestQ.Length();
|
||||
for (i=0; i<count; ++i)
|
||||
Request(i)->SetConnection(this);
|
||||
}
|
||||
|
||||
nsAHttpConnection *
|
||||
|
|
@ -759,7 +744,10 @@ nsHttpPipeline::WriteSegments(nsAHttpSegmentWriter *writer,
|
|||
|
||||
// ask the connection manager to add additional transactions
|
||||
// to our pipeline.
|
||||
gHttpHandler->ConnMgr()->AddTransactionToPipeline(this);
|
||||
nsRefPtr<nsHttpConnectionInfo> ci;
|
||||
GetConnectionInfo(getter_AddRefs(ci));
|
||||
if (ci)
|
||||
gHttpHandler->ConnMgr()->ProcessPendingQForEntry(ci);
|
||||
}
|
||||
else
|
||||
mResponseIsPartial = true;
|
||||
|
|
@ -819,6 +807,13 @@ nsHttpPipeline::Close(nsresult reason)
|
|||
mRequestQ.Clear();
|
||||
|
||||
trans = Response(0);
|
||||
|
||||
nsRefPtr<nsHttpConnectionInfo> ci;
|
||||
GetConnectionInfo(getter_AddRefs(ci));
|
||||
if (ci && (trans || count))
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
ci, nsHttpConnectionMgr::RedCanceledPipeline, nsnull, 0);
|
||||
|
||||
if (trans) {
|
||||
// The current transaction can be restarted via reset
|
||||
// if the response has not started to arrive and the reason
|
||||
|
|
@ -879,6 +874,13 @@ nsHttpPipeline::FillSendBuf()
|
|||
while ((trans = Request(0)) != nsnull) {
|
||||
avail = trans->Available();
|
||||
if (avail) {
|
||||
// if there is already a response in the responseq then this
|
||||
// new data comprises a pipeline. Update the transaction in the
|
||||
// response queue to reflect that if necessary. We are now sending
|
||||
// out a request while we haven't received all responses.
|
||||
nsAHttpTransaction *response = Response(0);
|
||||
if (response && !response->PipelinePosition())
|
||||
response->SetPipelinePosition(1);
|
||||
rv = trans->ReadSegments(this, avail, &n);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
|
|
@ -909,6 +911,10 @@ nsHttpPipeline::FillSendBuf()
|
|||
NS_NET_STATUS_WAITING_FOR,
|
||||
mSendingToProgress);
|
||||
}
|
||||
|
||||
// It would be good to re-enable data read handlers via ResumeRecv()
|
||||
// except the read handler code can be synchronously dispatched on
|
||||
// the stack.
|
||||
}
|
||||
else
|
||||
mRequestIsPartial = true;
|
||||
|
|
|
|||
|
|
@ -57,7 +57,7 @@ public:
|
|||
NS_DECL_NSAHTTPTRANSACTION
|
||||
NS_DECL_NSAHTTPSEGMENTREADER
|
||||
|
||||
nsHttpPipeline(PRUint16 maxPipelineDepth);
|
||||
nsHttpPipeline();
|
||||
virtual ~nsHttpPipeline();
|
||||
|
||||
private:
|
||||
|
|
@ -82,7 +82,6 @@ private:
|
|||
return mResponseQ[i];
|
||||
}
|
||||
|
||||
PRUint16 mMaxPipelineDepth;
|
||||
nsAHttpConnection *mConnection;
|
||||
nsTArray<nsAHttpTransaction*> mRequestQ; // array of transactions
|
||||
nsTArray<nsAHttpTransaction*> mResponseQ; // array of transactions
|
||||
|
|
|
|||
|
|
@ -119,6 +119,7 @@ nsHttpTransaction::nsHttpTransaction()
|
|||
, mPriority(0)
|
||||
, mRestartCount(0)
|
||||
, mCaps(0)
|
||||
, mClassification(CLASS_GENERAL)
|
||||
, mPipelinePosition(0)
|
||||
, mClosed(false)
|
||||
, mConnected(false)
|
||||
|
|
@ -150,6 +151,40 @@ nsHttpTransaction::~nsHttpTransaction()
|
|||
delete mChunkedDecoder;
|
||||
}
|
||||
|
||||
nsHttpTransaction::Classifier
|
||||
nsHttpTransaction::Classify()
|
||||
{
|
||||
if (!(mCaps & NS_HTTP_ALLOW_PIPELINING))
|
||||
return (mClassification = CLASS_SOLO);
|
||||
|
||||
if (mRequestHead->PeekHeader(nsHttp::If_Modified_Since) ||
|
||||
mRequestHead->PeekHeader(nsHttp::If_None_Match))
|
||||
return (mClassification = CLASS_REVALIDATION);
|
||||
|
||||
const char *accept = mRequestHead->PeekHeader(nsHttp::Accept);
|
||||
if (accept && !PL_strncmp(accept, "image/", 6))
|
||||
return (mClassification = CLASS_IMAGE);
|
||||
|
||||
if (accept && !PL_strncmp(accept, "text/css", 8))
|
||||
return (mClassification = CLASS_SCRIPT);
|
||||
|
||||
mClassification = CLASS_GENERAL;
|
||||
|
||||
PRInt32 queryPos = mRequestHead->RequestURI().FindChar('?');
|
||||
if (queryPos == kNotFound) {
|
||||
if (StringEndsWith(mRequestHead->RequestURI(),
|
||||
NS_LITERAL_CSTRING(".js")))
|
||||
mClassification = CLASS_SCRIPT;
|
||||
}
|
||||
else if (queryPos >= 3 &&
|
||||
Substring(mRequestHead->RequestURI(), queryPos - 3, 3).
|
||||
EqualsLiteral(".js")) {
|
||||
mClassification = CLASS_SCRIPT;
|
||||
}
|
||||
|
||||
return mClassification;
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsHttpTransaction::Init(PRUint8 caps,
|
||||
nsHttpConnectionInfo *cinfo,
|
||||
|
|
@ -301,6 +336,8 @@ nsHttpTransaction::Init(PRUint8 caps,
|
|||
nsIOService::gDefaultSegmentCount);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
Classify();
|
||||
|
||||
NS_ADDREF(*responseBody = mPipeIn);
|
||||
return NS_OK;
|
||||
}
|
||||
|
|
@ -661,9 +698,15 @@ nsHttpTransaction::Close(nsresult reason)
|
|||
// mReceivedData == FALSE. (see bug 203057 for more info.)
|
||||
//
|
||||
if (reason == NS_ERROR_NET_RESET || reason == NS_OK) {
|
||||
if (!mReceivedData && (!mSentData || connReused)) {
|
||||
if (!mReceivedData && (!mSentData || connReused || mPipelinePosition)) {
|
||||
// if restarting fails, then we must proceed to close the pipe,
|
||||
// which will notify the channel that the transaction failed.
|
||||
|
||||
if (mPipelinePosition) {
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::RedCanceledPipeline,
|
||||
nsnull, 0);
|
||||
}
|
||||
if (NS_SUCCEEDED(Restart()))
|
||||
return;
|
||||
}
|
||||
|
|
@ -671,6 +714,21 @@ nsHttpTransaction::Close(nsresult reason)
|
|||
|
||||
bool relConn = true;
|
||||
if (NS_SUCCEEDED(reason)) {
|
||||
if (!mResponseIsComplete) {
|
||||
// The response has not been delimited with a high-confidence
|
||||
// algorithm like Content-Length or Chunked Encoding. We
|
||||
// need to use a strong framing mechanism to pipeline.
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::BadInsufficientFraming,
|
||||
nsnull, mClassification);
|
||||
}
|
||||
else if (mPipelinePosition) {
|
||||
// report this success as feedback
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::GoodCompletedOK,
|
||||
nsnull, mPipelinePosition);
|
||||
}
|
||||
|
||||
// the server has not sent the final \r\n terminating the header
|
||||
// section, and there may still be a header line unparsed. let's make
|
||||
// sure we parse the remaining header line, and then hopefully, the
|
||||
|
|
@ -717,10 +775,10 @@ nsHttpTransaction::AddTransaction(nsAHttpTransaction *trans)
|
|||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
PRUint16
|
||||
nsHttpTransaction::PipelineDepthAvailable()
|
||||
PRUint32
|
||||
nsHttpTransaction::PipelineDepth()
|
||||
{
|
||||
return 0;
|
||||
return IsDone() ? 0 : 1;
|
||||
}
|
||||
|
||||
nsresult
|
||||
|
|
@ -871,6 +929,9 @@ nsHttpTransaction::ParseLineSegment(char *segment, PRUint32 len)
|
|||
nsresult rv = ParseLine(mLineBuf.BeginWriting());
|
||||
mLineBuf.Truncate();
|
||||
if (NS_FAILED(rv)) {
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::RedCorruptedContent,
|
||||
nsnull, 0);
|
||||
return rv;
|
||||
}
|
||||
}
|
||||
|
|
@ -1065,6 +1126,10 @@ nsHttpTransaction::HandleContentStart()
|
|||
break;
|
||||
}
|
||||
mConnection->SetLastTransactionExpectedNoContent(mNoContent);
|
||||
if (mInvalidResponseBytesRead)
|
||||
gHttpHandler->ConnMgr()->PipelineFeedbackInfo(
|
||||
mConnInfo, nsHttpConnectionMgr::BadInsufficientFraming,
|
||||
nsnull, mClassification);
|
||||
|
||||
if (mNoContent)
|
||||
mContentLength = 0;
|
||||
|
|
|
|||
|
|
@ -134,6 +134,7 @@ public:
|
|||
PRInt32 Priority() { return mPriority; }
|
||||
|
||||
const TimingStruct& Timings() const { return mTimings; }
|
||||
enum Classifier Classification() { return mClassification; }
|
||||
|
||||
private:
|
||||
nsresult Restart();
|
||||
|
|
@ -147,6 +148,8 @@ private:
|
|||
nsresult ProcessData(char *, PRUint32, PRUint32 *);
|
||||
void DeleteSelfOnConsumerThread();
|
||||
|
||||
Classifier Classify();
|
||||
|
||||
static NS_METHOD ReadRequestSegment(nsIInputStream *, void *, const char *,
|
||||
PRUint32, PRUint32, PRUint32 *);
|
||||
static NS_METHOD WritePipeSegment(nsIOutputStream *, void *, char *,
|
||||
|
|
@ -199,6 +202,7 @@ private:
|
|||
|
||||
PRUint16 mRestartCount; // the number of times this transaction has been restarted
|
||||
PRUint8 mCaps;
|
||||
enum Classifier mClassification;
|
||||
PRInt32 mPipelinePosition;
|
||||
|
||||
// state flags, all logically boolean, but not packed together into a
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче