extensions/browser/api/dns/mock_host_resolver_creator.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "extensions/browser/api/dns/mock_host_resolver_creator.h"
   6
   7 #include "base/logging.h"
   8 #include "content/public/browser/browser_thread.h"
   9 #include "net/dns/mock_host_resolver.h"
  10
  11 using content::BrowserThread;
  12
  13 namespace extensions {
  14
  15 const std::string MockHostResolverCreator::kHostname = "www.sowbug.com";
  16 const std::string MockHostResolverCreator::kAddress = "9.8.7.6";
  17
  18 MockHostResolverCreator::MockHostResolverCreator()
  19     : resolver_event_(true, false), mock_host_resolver_(NULL) {
  20 }
  21
  22 MockHostResolverCreator::~MockHostResolverCreator() {
  23 }
  24
  25 net::HostResolver* MockHostResolverCreator::CreateMockHostResolver() {
  26   DCHECK(!mock_host_resolver_);
  27   DCHECK_CURRENTLY_ON(BrowserThread::UI);
  28
  29   bool result = BrowserThread::PostTask(
  30       BrowserThread::IO,
  31       FROM_HERE,
  32       base::Bind(&MockHostResolverCreator::CreateMockHostResolverOnIOThread,
  33                  this));
  34   DCHECK(result);
  35
  36   base::TimeDelta max_time = base::TimeDelta::FromSeconds(5);
  37   resolver_event_.TimedWait(max_time);
  38
  39   return mock_host_resolver_;
  40 }
  41
  42 void MockHostResolverCreator::CreateMockHostResolverOnIOThread() {
  43   mock_host_resolver_ = new net::MockHostResolver();
  44   mock_host_resolver_->rules()->AddRule(kHostname, kAddress);
  45   mock_host_resolver_->rules()->AddSimulatedFailure("this.hostname.is.bogus");
  46   resolver_event_.Signal();
  47 }
  48
  49 void MockHostResolverCreator::DeleteMockHostResolver() {
  50   DCHECK_CURRENTLY_ON(BrowserThread::UI);
  51   if (!mock_host_resolver_)
  52     return;
  53   resolver_event_.Reset();
  54   bool result = BrowserThread::PostTask(
  55       BrowserThread::IO,
  56       FROM_HERE,
  57       base::Bind(&MockHostResolverCreator::DeleteMockHostResolverOnIOThread,
  58                  this));
  59   DCHECK(result);
  60
  61   base::TimeDelta max_time = base::TimeDelta::FromSeconds(5);
  62   CHECK(resolver_event_.TimedWait(max_time));
  63 }
  64
  65 void MockHostResolverCreator::DeleteMockHostResolverOnIOThread() {
  66   delete (mock_host_resolver_);
  67   mock_host_resolver_ = NULL;
  68   resolver_event_.Signal();
  69 }
  70
  71 }  // namespace extensions