net: networking optimizations

features:
- early connection
- memory cache
- caching of redirection
- request queue priority
- closing unused sockets
- SHUTR
- fin aggregation
- object prefetch
- dns host name prioritization

Change-Id: Ief90b8206ba48115eaeb12d554424d65f36427ac

1 files changed, 79 insertions, 0 deletions

diff --git a/net/http/tcp-connections-bridge.cc b/net/http/tcp-connections-bridge.cc
new file mode 100644
index 0000000..3201b3d
--- /dev/null
+++ b/net/http/tcp-connections-bridge.cc
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2011, 2012 Code Aurora Forum. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *   * Neither the name of Code Aurora Forum, Inc. nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "build/build_config.h"
+
+#include <unistd.h>
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "net/http/http_response_headers.h"
+#include "net/http/preconnect.h"
+
+#include "net/http/tcp-connections-bridge.h"
+#include "net/http/tcp-connections-bridge-exports.h"
+#include "net/http/http_network_session.h"
+#include <dlfcn.h>
+#include <cutils/log.h>
+
+static void (*DoObserveConnections)(
+    net::HttpNetworkSession* session,
+    const GURL& url) = NULL;
+
+static void InitOnce() {
+  static bool initialized = false;
+  if (!initialized) {
+      initialized = true;
+      void* fh = dlopen("tcp-connections.so", RTLD_LAZY);
+      if (fh) {
+          dlerror(); //see man dlopen
+          *(void **)(&DoObserveConnections) = dlsym(fh, "DoObserveConnections");
+      }
+      if (NULL == DoObserveConnections) {
+          SLOGD("Failed to load DoObserveConnections symbol in tcp-connections.so");
+      }
+  }
+}
+
+void ObserveConnections(
+    net::HttpNetworkSession *session,
+    const GURL& url
+)
+{
+  InitOnce();
+  if (DoObserveConnections) {
+      DoObserveConnections(session, url);
+  }
+}
+
+void NetPreconnect(net::HttpNetworkSession* session, GURL const& url, int numOfConnections) {
+  net::Preconnect::DoPreconnect(session, url, numOfConnections);
+}