Generalize the net module's LoadLog facility from a passive container, to an event stream (NetLog).

net/base/host_resolver_impl_unittest.cc

 // Copyright (c) 2006-2008 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/base/host_resolver_impl.h"
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/ref_counted.h"
 #include "base/string_util.h"
 #include "net/base/address_list.h"
 #include "net/base/completion_callback.h"
-#include "net/base/load_log_unittest.h"
 #include "net/base/mock_host_resolver.h"
 #include "net/base/mock_network_change_notifier.h"
 #include "net/base/net_errors.h"
+#include "net/base/net_log_unittest.h"
 #include "net/base/net_util.h"
 #include "net/base/sys_addrinfo.h"
 #include "net/base/test_completion_callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // TODO(eroman):
 //  - Test mixing async with sync (in particular how does sync update the
 //    cache while an async is already pending).
 
 namespace net {
@@ skipping 226 matching lines @@
   const int kPortnum = 80;
 
   scoped_refptr<RuleBasedHostResolverProc> resolver_proc =
       new RuleBasedHostResolverProc(NULL);
   resolver_proc->AddRule("just.testing", "192.168.1.42");
 
   scoped_refptr<HostResolver> host_resolver(
       CreateHostResolverImpl(resolver_proc));
 
   HostResolver::RequestInfo info("just.testing", kPortnum);
-  scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
-  int err = host_resolver->Resolve(info, &adrlist, NULL, NULL, log);
+  CapturingBoundNetLog log(CapturingNetLog::kUnbounded);
+  int err = host_resolver->Resolve(info, &adrlist, NULL, NULL, log.bound());
   EXPECT_EQ(OK, err);
 
-  EXPECT_EQ(2u, log->entries().size());
-  EXPECT_TRUE(LogContainsBeginEvent(*log, 0, LoadLog::TYPE_HOST_RESOLVER_IMPL));
-  EXPECT_TRUE(LogContainsEndEvent(*log, 1, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_EQ(2u, log.entries().size());
+  EXPECT_TRUE(LogContainsBeginEvent(
+      log.entries(), 0, NetLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_TRUE(LogContainsEndEvent(
+      log.entries(), 1, NetLog::TYPE_HOST_RESOLVER_IMPL));
 
   const struct addrinfo* ainfo = adrlist.head();
   EXPECT_EQ(static_cast<addrinfo*>(NULL), ainfo->ai_next);
   EXPECT_EQ(sizeof(struct sockaddr_in), ainfo->ai_addrlen);
 
   const struct sockaddr* sa = ainfo->ai_addr;
   const struct sockaddr_in* sa_in = (const struct sockaddr_in*) sa;
   EXPECT_TRUE(htons(kPortnum) == sa_in->sin_port);
   EXPECT_TRUE(htonl(0xc0a8012a) == sa_in->sin_addr.s_addr);
 }
 
 TEST_F(HostResolverImplTest, AsynchronousLookup) {
   AddressList adrlist;
   const int kPortnum = 80;
 
   scoped_refptr<RuleBasedHostResolverProc> resolver_proc =
       new RuleBasedHostResolverProc(NULL);
   resolver_proc->AddRule("just.testing", "192.168.1.42");
 
   scoped_refptr<HostResolver> host_resolver(
       CreateHostResolverImpl(resolver_proc));
 
   HostResolver::RequestInfo info("just.testing", kPortnum);
-  scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
-  int err = host_resolver->Resolve(info, &adrlist, &callback_, NULL, log);
+  CapturingBoundNetLog log(CapturingNetLog::kUnbounded);
+  int err = host_resolver->Resolve(info, &adrlist, &callback_, NULL,
+                                   log.bound());
   EXPECT_EQ(ERR_IO_PENDING, err);
 
-  EXPECT_EQ(1u, log->entries().size());
-  EXPECT_TRUE(LogContainsBeginEvent(*log, 0, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_EQ(1u, log.entries().size());
+  EXPECT_TRUE(LogContainsBeginEvent(
+      log.entries(), 0, NetLog::TYPE_HOST_RESOLVER_IMPL));
 
   MessageLoop::current()->Run();
 
   ASSERT_TRUE(callback_called_);
   ASSERT_EQ(OK, callback_result_);
 
-  EXPECT_EQ(2u, log->entries().size());
-  EXPECT_TRUE(LogContainsEndEvent(*log, 1, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_EQ(2u, log.entries().size());
+  EXPECT_TRUE(LogContainsEndEvent(
+      log.entries(), 1, NetLog::TYPE_HOST_RESOLVER_IMPL));
 
   const struct addrinfo* ainfo = adrlist.head();
   EXPECT_EQ(static_cast<addrinfo*>(NULL), ainfo->ai_next);
   EXPECT_EQ(sizeof(struct sockaddr_in), ainfo->ai_addrlen);
 
   const struct sockaddr* sa = ainfo->ai_addr;
   const struct sockaddr_in* sa_in = (const struct sockaddr_in*) sa;
   EXPECT_TRUE(htons(kPortnum) == sa_in->sin_port);
   EXPECT_TRUE(htonl(0xc0a8012a) == sa_in->sin_addr.s_addr);
 }
 
 TEST_F(HostResolverImplTest, CanceledAsynchronousLookup) {
   scoped_refptr<WaitingHostResolverProc> resolver_proc =
       new WaitingHostResolverProc(NULL);
 
-  scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
+  CapturingBoundNetLog log(CapturingNetLog::kUnbounded);
   {
     scoped_refptr<HostResolver> host_resolver(
         CreateHostResolverImpl(resolver_proc));
     AddressList adrlist;
     const int kPortnum = 80;
 
     HostResolver::RequestInfo info("just.testing", kPortnum);
-    int err = host_resolver->Resolve(info, &adrlist, &callback_, NULL, log);
+    int err = host_resolver->Resolve(info, &adrlist, &callback_, NULL,
+                                     log.bound());
     EXPECT_EQ(ERR_IO_PENDING, err);
 
     // Make sure we will exit the queue even when callback is not called.
     MessageLoop::current()->PostDelayedTask(FROM_HERE,
                                             new MessageLoop::QuitTask(),
                                             1000);
     MessageLoop::current()->Run();
   }
 
   resolver_proc->Signal();
 
-  EXPECT_EQ(3u, log->entries().size());
-  EXPECT_TRUE(LogContainsBeginEvent(*log, 0, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_EQ(3u, log.entries().size());
+  EXPECT_TRUE(LogContainsBeginEvent(
+      log.entries(), 0, NetLog::TYPE_HOST_RESOLVER_IMPL));
   EXPECT_TRUE(LogContainsEvent(
-      *log, 1, LoadLog::TYPE_CANCELLED, LoadLog::PHASE_NONE));
-  EXPECT_TRUE(LogContainsEndEvent(*log, 2, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+      log.entries(), 1, NetLog::TYPE_CANCELLED, NetLog::PHASE_NONE));
+  EXPECT_TRUE(LogContainsEndEvent(
+      log.entries(), 2, NetLog::TYPE_HOST_RESOLVER_IMPL));
 
   EXPECT_FALSE(callback_called_);
 }
 
 TEST_F(HostResolverImplTest, NumericIPv4Address) {
   // Stevens says dotted quads with AI_UNSPEC resolve to a single sockaddr_in.
 
   scoped_refptr<RuleBasedHostResolverProc> resolver_proc =
       new RuleBasedHostResolverProc(NULL);
   resolver_proc->AllowDirectLookup("*");
@@ skipping 526 matching lines @@
       CreateHostResolverImpl(NULL));
 
   CapturingObserver observer;
 
   host_resolver->AddObserver(&observer);
 
   AddressList addrlist;
 
   // Resolve "host1".
   HostResolver::RequestInfo info1("host1", 70);
-  scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
-  int rv = host_resolver->Resolve(info1, &addrlist, NULL, NULL, log);
+  CapturingBoundNetLog log(CapturingNetLog::kUnbounded);
+  int rv = host_resolver->Resolve(info1, &addrlist, NULL, NULL, log.bound());
   EXPECT_EQ(OK, rv);
 
-  EXPECT_EQ(6u, log->entries().size());
-  EXPECT_TRUE(LogContainsBeginEvent(*log, 0, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_EQ(6u, log.entries().size());
   EXPECT_TRUE(LogContainsBeginEvent(
-      *log, 1, LoadLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONSTART));
+      log.entries(), 0, NetLog::TYPE_HOST_RESOLVER_IMPL));
+  EXPECT_TRUE(LogContainsBeginEvent(
+      log.entries(), 1, NetLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONSTART));
   EXPECT_TRUE(LogContainsEndEvent(
-      *log, 2, LoadLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONSTART));
+      log.entries(), 2, NetLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONSTART));
   EXPECT_TRUE(LogContainsBeginEvent(
-      *log, 3, LoadLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONFINISH));
+      log.entries(), 3, NetLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONFINISH));
   EXPECT_TRUE(LogContainsEndEvent(
-      *log, 4, LoadLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONFINISH));
+      log.entries(), 4, NetLog::TYPE_HOST_RESOLVER_IMPL_OBSERVER_ONFINISH));
   EXPECT_TRUE(LogContainsEndEvent(
-      *log, 5, LoadLog::TYPE_HOST_RESOLVER_IMPL));
+      log.entries(), 5, NetLog::TYPE_HOST_RESOLVER_IMPL));
 
   EXPECT_EQ(1U, observer.start_log.size());
   EXPECT_EQ(1U, observer.finish_log.size());
   EXPECT_EQ(0U, observer.cancel_log.size());
   EXPECT_TRUE(observer.start_log[0] ==
               CapturingObserver::StartOrCancelEntry(0, info1));
   EXPECT_TRUE(observer.finish_log[0] ==
               CapturingObserver::FinishEntry(0, true, info1));
 
   // Resolve "host1" again -- this time it  will be served from cache, but it
@@ skipping 557 matching lines @@
   //    z = value of address family
   EXPECT_EQ("192.1.98.1", NetAddressToString(addrlist[0].head()));
   EXPECT_EQ("192.1.98.2", NetAddressToString(addrlist[1].head()));
   EXPECT_EQ("192.1.98.1", NetAddressToString(addrlist[2].head()));
   EXPECT_EQ("192.1.98.1", NetAddressToString(addrlist[3].head()));
 }
 
 }  // namespace
 
 }  // namespace net