Close idle sockets next time we are about to send data.

net/socket/client_socket_pool_base_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/socket/client_socket_pool_base.h"
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 536 matching lines @@
 };
 
 class ClientSocketPoolBaseTest : public testing::Test {
  protected:
   ClientSocketPoolBaseTest()
       : params_(new TestSocketParams()),
         histograms_("ClientSocketPoolTest") {
     connect_backup_jobs_enabled_ =
         internal::ClientSocketPoolBaseHelper::connect_backup_jobs_enabled();
     internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(true);
+    cleanup_timer_enabled_ =
+        internal::ClientSocketPoolBaseHelper::cleanup_timer_enabled();
   }
 
   virtual ~ClientSocketPoolBaseTest() {
     internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(
         connect_backup_jobs_enabled_);
+    internal::ClientSocketPoolBaseHelper::set_cleanup_timer_enabled(
+        cleanup_timer_enabled_);
   }
 
   void CreatePool(int max_sockets, int max_sockets_per_group) {
     CreatePoolWithIdleTimeouts(
         max_sockets,
         max_sockets_per_group,
         ClientSocketPool::unused_idle_socket_timeout(),
         ClientSocketPool::used_idle_socket_timeout());
   }
 
@@ skipping 29 matching lines @@
   void ReleaseAllConnections(ClientSocketPoolTest::KeepAlive keep_alive) {
     test_base_.ReleaseAllConnections(keep_alive);
   }
 
   TestSocketRequest* request(int i) { return test_base_.request(i); }
   size_t requests_size() const { return test_base_.requests_size(); }
   ScopedVector<TestSocketRequest>* requests() { return test_base_.requests(); }
   size_t completion_count() const { return test_base_.completion_count(); }
 
   bool connect_backup_jobs_enabled_;
+  bool cleanup_timer_enabled_;
   MockClientSocketFactory client_socket_factory_;
   TestConnectJobFactory* connect_job_factory_;
   scoped_refptr<TestSocketParams> params_;
   ClientSocketPoolHistograms histograms_;
   scoped_ptr<TestClientSocketPool> pool_;
   ClientSocketPoolTest test_base_;
 };
 
 TEST_F(ClientSocketPoolBaseTest, AssignIdleSocketToGroup_WarmestSocket) {
   CreatePool(4, 4);
@@ skipping 1318 matching lines @@
                         pool_.get(),
                         BoundNetLog()));
   EXPECT_EQ(LOAD_STATE_CONNECTING, pool_->GetLoadState("a", &handle));
   EXPECT_EQ(ERR_CONNECTION_FAILED, callback.WaitForResult());
   EXPECT_FALSE(handle.is_initialized());
   EXPECT_FALSE(handle.socket());
   EXPECT_TRUE(handle.is_ssl_error());
   EXPECT_FALSE(handle.ssl_error_response_info().headers.get() == NULL);
 }
 
+TEST_F(ClientSocketPoolBaseTest, DisableCleanupTimer) {
+  // Disable cleanup timer.
+  internal::ClientSocketPoolBaseHelper::set_cleanup_timer_enabled(false);
+
+  CreatePoolWithIdleTimeouts(
+      kDefaultMaxSockets, kDefaultMaxSocketsPerGroup,
+      base::TimeDelta::FromMilliseconds(10),  // Time out unused sockets
+      base::TimeDelta::FromMilliseconds(10));  // Time out used sockets
+
+  connect_job_factory_->set_job_type(TestConnectJob::kMockPendingJob);
+
+  // Startup two mock pending connect jobs, which will sit in the MessageLoop.
+
+  ClientSocketHandle handle;
+  TestOldCompletionCallback callback;
+  int rv = handle.Init("a",
+                       params_,
+                       LOWEST,
+                       &callback,
+                       pool_.get(),
+                       BoundNetLog());
+  EXPECT_EQ(ERR_IO_PENDING, rv);
+  EXPECT_EQ(LOAD_STATE_CONNECTING, pool_->GetLoadState("a", &handle));
+
+  ClientSocketHandle handle2;
+  TestOldCompletionCallback callback2;
+  rv = handle2.Init("a",
+                    params_,
+                    LOWEST,
+                    &callback2,
+                    pool_.get(),
+                    BoundNetLog());
+  EXPECT_EQ(ERR_IO_PENDING, rv);
+  EXPECT_EQ(LOAD_STATE_CONNECTING, pool_->GetLoadState("a", &handle2));
+
+  // Cancel one of the requests.  Wait for the other, which will get the first
+  // job.  Release the socket.  Run the loop again to make sure the second
+  // socket is sitting idle and the first one is released (since ReleaseSocket()
+  // just posts a DoReleaseSocket() task).
+
+  handle.Reset();
+  EXPECT_EQ(OK, callback2.WaitForResult());
+  // Use the socket.
+  EXPECT_EQ(1, handle2.socket()->Write(NULL, 1, NULL));
+  handle2.Reset();
+
+  // We post all of our delayed tasks with a 2ms delay. I.e. they don't

[willchan no longer on Chromium, 2011/11/16 00:51:40]

Is this comment true?

[selim, 2011/11/16 01:01:08]

I took this part of the test exactly from the one immediate below. I don't know
if this comment is still valid or not.

[willchan no longer on Chromium, 2011/11/16 01:04:29]

Looks bogus to me. Please remove it. Explain what the 20ms is for (I assume it's
to give a little more buffer than just 10ms from the idle socket timer).

+  // actually become pending until 2ms after they have been created. In order
+  // to flush all tasks, we need to wait so that we know there are no
+  // soon-to-be-pending tasks waiting.
+  base::PlatformThread::Sleep(20);
+  MessageLoop::current()->RunAllPending();
+
+  ASSERT_EQ(2, pool_->IdleSocketCount());
+
+  // Request a new socket. This should cleanup the unused and timed out ones.
+  // A new socket will be created rather than reusing the idle one.
+  CapturingBoundNetLog log(CapturingNetLog::kUnbounded);
+  rv = handle.Init("a",
+                   params_,
+                   LOWEST,
+                   &callback,
+                   pool_.get(),
+                   log.bound());
+  EXPECT_EQ(ERR_IO_PENDING, rv);
+  EXPECT_EQ(OK, callback.WaitForResult());
+  EXPECT_FALSE(handle.is_reused());
+
+  // Make sure the idle socket is closed
+  ASSERT_TRUE(pool_->HasGroup("a"));
+  EXPECT_EQ(0, pool_->IdleSocketCountInGroup("a"));
+  EXPECT_EQ(1, pool_->NumActiveSocketsInGroup("a"));
+
+  net::CapturingNetLog::EntryList entries;
+  log.GetEntries(&entries);
+  EXPECT_FALSE(LogContainsEntryWithType(
+      entries, 1, NetLog::TYPE_SOCKET_POOL_REUSED_AN_EXISTING_SOCKET));
+}
+
 TEST_F(ClientSocketPoolBaseTest, CleanupTimedOutIdleSockets) {
   CreatePoolWithIdleTimeouts(
       kDefaultMaxSockets, kDefaultMaxSocketsPerGroup,
       base::TimeDelta(),  // Time out unused sockets immediately.
       base::TimeDelta::FromDays(1));  // Don't time out used sockets.
 
   connect_job_factory_->set_job_type(TestConnectJob::kMockPendingJob);
 
   // Startup two mock pending connect jobs, which will sit in the MessageLoop.
 
@@ skipping 1307 matching lines @@
   // The hung connect job should still be there, but everything else should be
   // complete.
   EXPECT_EQ(1, pool_->NumConnectJobsInGroup("a"));
   EXPECT_EQ(0, pool_->IdleSocketCountInGroup("a"));
   EXPECT_EQ(1, pool_->NumActiveSocketsInGroup("a"));
 }
 
 }  // namespace
 
 }  // namespace net