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-rw-r--r--netwerk/protocol/http/PSpdyPush.h56
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diff --git a/netwerk/protocol/http/PSpdyPush.h b/netwerk/protocol/http/PSpdyPush.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */
+
+// SPDY Server Push
+
+/*
+ A pushed stream is put into a memory buffer (The SpdyPushTransactionBuffer)
+ and spooled there until a GET is made that can be matched up with it. At
+ that time we have two spdy streams - the GET (aka the sink) and the PUSH
+ (aka the source). Data is copied between those two streams for the lifetime
+ of the transaction. This is true even if the transaction buffer is empty,
+ partly complete, or totally loaded at the time the GET correspondence is made.
+
+ correspondence is done through a hash table of the full url, the spdy session,
+ and the load group. The load group is implicit because that's where the
+ hash is stored, the other items comprise the hash key.
+
+ Pushed streams are subject to aggressive flow control before they are matched
+ with a GET at which point flow control is effectively disabled to match the
+ client pull behavior.
+*/
+
+#ifndef mozilla_net_SpdyPush_Public_h
+#define mozilla_net_SpdyPush_Public_h
+
+#include "nsTHashMap.h"
+#include "nsISupports.h"
+#include "nsStringFwd.h"
+
+namespace mozilla {
+namespace net {
+
+class Http2PushedStream;
+
+// One cache per load group
+class SpdyPushCache {
+ public:
+ // The cache holds only weak pointers - no references
+ SpdyPushCache() = default;
+ virtual ~SpdyPushCache();
+ [[nodiscard]] bool RegisterPushedStreamHttp2(const nsCString& key,
+ Http2PushedStream* stream);
+ Http2PushedStream* RemovePushedStreamHttp2(const nsCString& key);
+ Http2PushedStream* RemovePushedStreamHttp2ByID(const nsCString& key,
+ const uint32_t& streamID);
+
+ private:
+ nsTHashMap<nsCStringHashKey, Http2PushedStream*> mHashHttp2;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif // mozilla_net_SpdyPush_Public_h