ipc/ipc_test_base.cc

   1 // Copyright (c) 2012 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 "build/build_config.h"
   6
   7 #include "ipc/ipc_test_base.h"
   8
   9 #include "base/command_line.h"
  10 #include "base/process/kill.h"
  11 #include "base/threading/thread.h"
  12 #include "base/time/time.h"
  13 #include "ipc/ipc_descriptors.h"
  14
  15 #if defined(OS_POSIX)
  16 #include "base/posix/global_descriptors.h"
  17 #endif
  18
  19 // static
  20 std::string IPCTestBase::GetChannelName(const std::string& test_client_name) {
  21   DCHECK(!test_client_name.empty());
  22   return test_client_name + "__Channel";
  23 }
  24
  25 IPCTestBase::IPCTestBase()
  26     : client_process_(base::kNullProcessHandle) {
  27 }
  28
  29 IPCTestBase::~IPCTestBase() {
  30 }
  31
  32 void IPCTestBase::SetUp() {
  33   MultiProcessTest::SetUp();
  34
  35   // Construct a fresh IO Message loop for the duration of each test.
  36   DCHECK(!message_loop_.get());
  37   message_loop_.reset(new base::MessageLoopForIO());
  38 }
  39
  40 void IPCTestBase::TearDown() {
  41   DCHECK(message_loop_.get());
  42   message_loop_.reset();
  43   MultiProcessTest::TearDown();
  44 }
  45
  46 void IPCTestBase::Init(const std::string& test_client_name) {
  47   DCHECK(!test_client_name.empty());
  48   DCHECK(test_client_name_.empty());
  49   test_client_name_ = test_client_name;
  50 }
  51
  52 void IPCTestBase::CreateChannel(IPC::Listener* listener) {
  53   return CreateChannelFromChannelHandle(GetChannelName(test_client_name_),
  54                                         listener);
  55 }
  56
  57 bool IPCTestBase::ConnectChannel() {
  58   CHECK(channel_.get());
  59   return channel_->Connect();
  60 }
  61
  62 scoped_ptr<IPC::Channel> IPCTestBase::ReleaseChannel() {
  63   return channel_.Pass();
  64 }
  65
  66 void IPCTestBase::SetChannel(scoped_ptr<IPC::Channel> channel) {
  67   channel_ = channel.Pass();
  68 }
  69
  70
  71 void IPCTestBase::DestroyChannel() {
  72   DCHECK(channel_.get());
  73   channel_.reset();
  74 }
  75
  76 void IPCTestBase::CreateChannelFromChannelHandle(
  77     const IPC::ChannelHandle& channel_handle,
  78     IPC::Listener* listener) {
  79   CHECK(!channel_.get());
  80   CHECK(!channel_proxy_.get());
  81   channel_ = IPC::Channel::CreateServer(channel_handle, listener);
  82 }
  83
  84 void IPCTestBase::CreateChannelProxy(
  85     IPC::Listener* listener,
  86     base::SingleThreadTaskRunner* ipc_task_runner) {
  87   CHECK(!channel_.get());
  88   CHECK(!channel_proxy_.get());
  89   channel_proxy_ = IPC::ChannelProxy::Create(GetChannelName(test_client_name_),
  90                                              IPC::Channel::MODE_SERVER,
  91                                              listener,
  92                                              ipc_task_runner);
  93 }
  94
  95 void IPCTestBase::DestroyChannelProxy() {
  96   CHECK(channel_proxy_.get());
  97   channel_proxy_.reset();
  98 }
  99
 100 bool IPCTestBase::StartClient() {
 101   DCHECK(client_process_ == base::kNullProcessHandle);
 102
 103   std::string test_main = test_client_name_ + "TestClientMain";
 104
 105 #if defined(OS_WIN)
 106   client_process_ = SpawnChild(test_main);
 107 #elif defined(OS_POSIX)
 108   base::FileHandleMappingVector fds_to_map;
 109   const int ipcfd = channel_.get()
 110       ? channel_->GetClientFileDescriptor()
 111       : channel_proxy_->GetClientFileDescriptor();
 112   if (ipcfd > -1)
 113     fds_to_map.push_back(std::pair<int, int>(ipcfd,
 114         kPrimaryIPCChannel + base::GlobalDescriptors::kBaseDescriptor));
 115   base::LaunchOptions options;
 116   options.fds_to_remap = &fds_to_map;
 117   client_process_ = SpawnChildWithOptions(test_main, options);
 118 #endif
 119
 120   return client_process_ != base::kNullProcessHandle;
 121 }
 122
 123 bool IPCTestBase::WaitForClientShutdown() {
 124   DCHECK(client_process_ != base::kNullProcessHandle);
 125
 126   bool rv = base::WaitForSingleProcess(client_process_,
 127                                        base::TimeDelta::FromSeconds(5));
 128   base::CloseProcessHandle(client_process_);
 129   client_process_ = base::kNullProcessHandle;
 130   return rv;
 131 }
 132
 133 scoped_refptr<base::TaskRunner> IPCTestBase::io_thread_task_runner() {
 134   return message_loop_->message_loop_proxy();
 135 }