| // Copyright 2014 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 <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/file_util.h" |
| #include "base/files/file_path.h" |
| #include "base/files/scoped_file.h" |
| #include "base/files/scoped_temp_dir.h" |
| #include "base/location.h" |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/threading/platform_thread.h" // For |Sleep()|. |
| #include "build/build_config.h" // TODO(vtl): Remove this. |
| #include "mojo/common/test/test_utils.h" |
| #include "mojo/embedder/platform_channel_pair.h" |
| #include "mojo/embedder/scoped_platform_handle.h" |
| #include "mojo/system/channel.h" |
| #include "mojo/system/local_message_pipe_endpoint.h" |
| #include "mojo/system/message_pipe.h" |
| #include "mojo/system/message_pipe_dispatcher.h" |
| #include "mojo/system/platform_handle_dispatcher.h" |
| #include "mojo/system/proxy_message_pipe_endpoint.h" |
| #include "mojo/system/raw_channel.h" |
| #include "mojo/system/shared_buffer_dispatcher.h" |
| #include "mojo/system/test_utils.h" |
| #include "mojo/system/waiter.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace mojo { |
| namespace system { |
| namespace { |
| |
| class RemoteMessagePipeTest : public testing::Test { |
| public: |
| RemoteMessagePipeTest() : io_thread_(test::TestIOThread::kAutoStart) {} |
| virtual ~RemoteMessagePipeTest() {} |
| |
| virtual void SetUp() OVERRIDE { |
| io_thread_.PostTaskAndWait( |
| FROM_HERE, |
| base::Bind(&RemoteMessagePipeTest::SetUpOnIOThread, |
| base::Unretained(this))); |
| } |
| |
| virtual void TearDown() OVERRIDE { |
| io_thread_.PostTaskAndWait( |
| FROM_HERE, |
| base::Bind(&RemoteMessagePipeTest::TearDownOnIOThread, |
| base::Unretained(this))); |
| } |
| |
| protected: |
| // This connects MP 0, port 1 and MP 1, port 0 (leaving MP 0, port 0 and MP 1, |
| // port 1 as the user-visible endpoints) to channel 0 and 1, respectively. MP |
| // 0, port 1 and MP 1, port 0 must have |ProxyMessagePipeEndpoint|s. |
| void ConnectMessagePipes(scoped_refptr<MessagePipe> mp0, |
| scoped_refptr<MessagePipe> mp1) { |
| io_thread_.PostTaskAndWait( |
| FROM_HERE, |
| base::Bind(&RemoteMessagePipeTest::ConnectMessagePipesOnIOThread, |
| base::Unretained(this), |
| mp0, |
| mp1)); |
| } |
| |
| // This connects |mp|'s port |channel_index ^ 1| to channel |channel_index|. |
| // It assumes/requires that this is the bootstrap case, i.e., that the |
| // endpoint IDs are both/will both be |Channel::kBootstrapEndpointId|. This |
| // returns *without* waiting for it to finish connecting. |
| void BootstrapMessagePipeNoWait(unsigned channel_index, |
| scoped_refptr<MessagePipe> mp) { |
| io_thread_.PostTask( |
| FROM_HERE, |
| base::Bind(&RemoteMessagePipeTest::BootstrapMessagePipeOnIOThread, |
| base::Unretained(this), |
| channel_index, |
| mp)); |
| } |
| |
| void RestoreInitialState() { |
| io_thread_.PostTaskAndWait( |
| FROM_HERE, |
| base::Bind(&RemoteMessagePipeTest::RestoreInitialStateOnIOThread, |
| base::Unretained(this))); |
| } |
| |
| test::TestIOThread* io_thread() { return &io_thread_; } |
| |
| private: |
| void SetUpOnIOThread() { |
| CHECK_EQ(base::MessageLoop::current(), io_thread()->message_loop()); |
| |
| embedder::PlatformChannelPair channel_pair; |
| platform_handles_[0] = channel_pair.PassServerHandle(); |
| platform_handles_[1] = channel_pair.PassClientHandle(); |
| } |
| |
| void TearDownOnIOThread() { |
| CHECK_EQ(base::MessageLoop::current(), io_thread()->message_loop()); |
| |
| if (channels_[0]) { |
| channels_[0]->Shutdown(); |
| channels_[0] = NULL; |
| } |
| if (channels_[1]) { |
| channels_[1]->Shutdown(); |
| channels_[1] = NULL; |
| } |
| } |
| |
| void CreateAndInitChannel(unsigned channel_index) { |
| CHECK_EQ(base::MessageLoop::current(), io_thread()->message_loop()); |
| CHECK(channel_index == 0 || channel_index == 1); |
| CHECK(!channels_[channel_index]); |
| |
| channels_[channel_index] = new Channel(); |
| CHECK(channels_[channel_index]->Init( |
| RawChannel::Create(platform_handles_[channel_index].Pass()))); |
| } |
| |
| void ConnectMessagePipesOnIOThread(scoped_refptr<MessagePipe> mp0, |
| scoped_refptr<MessagePipe> mp1) { |
| CHECK_EQ(base::MessageLoop::current(), io_thread()->message_loop()); |
| |
| if (!channels_[0]) |
| CreateAndInitChannel(0); |
| if (!channels_[1]) |
| CreateAndInitChannel(1); |
| |
| MessageInTransit::EndpointId local_id0 = |
| channels_[0]->AttachMessagePipeEndpoint(mp0, 1); |
| MessageInTransit::EndpointId local_id1 = |
| channels_[1]->AttachMessagePipeEndpoint(mp1, 0); |
| |
| CHECK(channels_[0]->RunMessagePipeEndpoint(local_id0, local_id1)); |
| CHECK(channels_[1]->RunMessagePipeEndpoint(local_id1, local_id0)); |
| } |
| |
| void BootstrapMessagePipeOnIOThread(unsigned channel_index, |
| scoped_refptr<MessagePipe> mp) { |
| CHECK_EQ(base::MessageLoop::current(), io_thread()->message_loop()); |
| CHECK(channel_index == 0 || channel_index == 1); |
| |
| unsigned port = channel_index ^ 1u; |
| |
| CreateAndInitChannel(channel_index); |
| MessageInTransit::EndpointId endpoint_id = |
| channels_[channel_index]->AttachMessagePipeEndpoint(mp, port); |
| if (endpoint_id == MessageInTransit::kInvalidEndpointId) |
| return; |
| |
| CHECK_EQ(endpoint_id, Channel::kBootstrapEndpointId); |
| CHECK(channels_[channel_index]->RunMessagePipeEndpoint( |
| Channel::kBootstrapEndpointId, Channel::kBootstrapEndpointId)); |
| } |
| |
| void RestoreInitialStateOnIOThread() { |
| CHECK_EQ(base::MessageLoop::current(), io_thread()->message_loop()); |
| |
| TearDownOnIOThread(); |
| SetUpOnIOThread(); |
| } |
| |
| test::TestIOThread io_thread_; |
| embedder::ScopedPlatformHandle platform_handles_[2]; |
| scoped_refptr<Channel> channels_[2]; |
| |
| DISALLOW_COPY_AND_ASSIGN(RemoteMessagePipeTest); |
| }; |
| |
| TEST_F(RemoteMessagePipeTest, Basic) { |
| static const char kHello[] = "hello"; |
| static const char kWorld[] = "world!!!1!!!1!"; |
| char buffer[100] = {0}; |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| Waiter waiter; |
| HandleSignalsState hss; |
| uint32_t context = 0; |
| |
| // Connect message pipes. MP 0, port 1 will be attached to channel 0 and |
| // connected to MP 1, port 0, which will be attached to channel 1. This leaves |
| // MP 0, port 0 and MP 1, port 1 as the "user-facing" endpoints. |
| |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| ConnectMessagePipes(mp0, mp1); |
| |
| // Write in one direction: MP 0, port 0 -> ... -> MP 1, port 1. |
| |
| // Prepare to wait on MP 1, port 1. (Add the waiter now. Otherwise, if we do |
| // it later, it might already be readable.) |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 123, NULL)); |
| |
| // Write to MP 0, port 0. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->WriteMessage(0, |
| UserPointer<const void>(kHello), |
| sizeof(kHello), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Wait. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(123u, context); |
| hss = HandleSignalsState(); |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Read from MP 1, port 1. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->ReadMessage(1, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(buffer_size)); |
| EXPECT_STREQ(kHello, buffer); |
| |
| // Write in the other direction: MP 1, port 1 -> ... -> MP 0, port 0. |
| |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp0->AddWaiter(0, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 456, NULL)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->WriteMessage(1, |
| UserPointer<const void>(kWorld), |
| sizeof(kWorld), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(456u, context); |
| hss = HandleSignalsState(); |
| mp0->RemoveWaiter(0, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->ReadMessage(0, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kWorld), static_cast<size_t>(buffer_size)); |
| EXPECT_STREQ(kWorld, buffer); |
| |
| // Close MP 0, port 0. |
| mp0->Close(0); |
| |
| // Try to wait for MP 1, port 1 to become readable. This will eventually fail |
| // when it realizes that MP 0, port 0 has been closed. (It may also fail |
| // immediately.) |
| waiter.Init(); |
| hss = HandleSignalsState(); |
| MojoResult result = |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 789, &hss); |
| if (result == MOJO_RESULT_OK) { |
| EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, |
| waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(789u, context); |
| hss = HandleSignalsState(); |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| } |
| EXPECT_EQ(0u, hss.satisfied_signals); |
| EXPECT_EQ(0u, hss.satisfiable_signals); |
| |
| // And MP 1, port 1. |
| mp1->Close(1); |
| } |
| |
| TEST_F(RemoteMessagePipeTest, Multiplex) { |
| static const char kHello[] = "hello"; |
| static const char kWorld[] = "world!!!1!!!1!"; |
| char buffer[100] = {0}; |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| Waiter waiter; |
| HandleSignalsState hss; |
| uint32_t context = 0; |
| |
| // Connect message pipes as in the |Basic| test. |
| |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| ConnectMessagePipes(mp0, mp1); |
| |
| // Now put another message pipe on the channel. |
| |
| scoped_refptr<MessagePipe> mp2(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| scoped_refptr<MessagePipe> mp3(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| ConnectMessagePipes(mp2, mp3); |
| |
| // Write: MP 2, port 0 -> MP 3, port 1. |
| |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp3->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 789, NULL)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp2->WriteMessage(0, |
| UserPointer<const void>(kHello), |
| sizeof(kHello), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(789u, context); |
| hss = HandleSignalsState(); |
| mp3->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Make sure there's nothing on MP 0, port 0 or MP 1, port 1 or MP 2, port 0. |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, |
| mp0->ReadMessage(0, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, |
| mp1->ReadMessage(1, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, |
| mp2->ReadMessage(0, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| |
| // Read from MP 3, port 1. |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp3->ReadMessage(1, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(buffer_size)); |
| EXPECT_STREQ(kHello, buffer); |
| |
| // Write: MP 0, port 0 -> MP 1, port 1 again. |
| |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 123, NULL)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->WriteMessage(0, |
| UserPointer<const void>(kWorld), |
| sizeof(kWorld), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(123u, context); |
| hss = HandleSignalsState(); |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Make sure there's nothing on the other ports. |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, |
| mp0->ReadMessage(0, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, |
| mp2->ReadMessage(0, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, |
| mp3->ReadMessage(1, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->ReadMessage(1, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kWorld), static_cast<size_t>(buffer_size)); |
| EXPECT_STREQ(kWorld, buffer); |
| |
| mp0->Close(0); |
| mp1->Close(1); |
| mp2->Close(0); |
| mp3->Close(1); |
| } |
| |
| TEST_F(RemoteMessagePipeTest, CloseBeforeConnect) { |
| static const char kHello[] = "hello"; |
| char buffer[100] = {0}; |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| Waiter waiter; |
| HandleSignalsState hss; |
| uint32_t context = 0; |
| |
| // Connect message pipes. MP 0, port 1 will be attached to channel 0 and |
| // connected to MP 1, port 0, which will be attached to channel 1. This leaves |
| // MP 0, port 0 and MP 1, port 1 as the "user-facing" endpoints. |
| |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| |
| // Write to MP 0, port 0. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->WriteMessage(0, |
| UserPointer<const void>(kHello), |
| sizeof(kHello), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| BootstrapMessagePipeNoWait(0, mp0); |
| |
| // Close MP 0, port 0 before channel 1 is even connected. |
| mp0->Close(0); |
| |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| |
| // Prepare to wait on MP 1, port 1. (Add the waiter now. Otherwise, if we do |
| // it later, it might already be readable.) |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 123, NULL)); |
| |
| BootstrapMessagePipeNoWait(1, mp1); |
| |
| // Wait. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(123u, context); |
| hss = HandleSignalsState(); |
| // Note: MP 1, port 1 should definitely should be readable, but it may or may |
| // not appear as writable (there's a race, and it may not have noticed that |
| // the other side was closed yet -- e.g., inserting a sleep here would make it |
| // much more likely to notice that it's no longer writable). |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_TRUE((hss.satisfied_signals & MOJO_HANDLE_SIGNAL_READABLE)); |
| EXPECT_TRUE((hss.satisfiable_signals & MOJO_HANDLE_SIGNAL_READABLE)); |
| |
| // Read from MP 1, port 1. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->ReadMessage(1, |
| UserPointer<void>(buffer), |
| MakeUserPointer(&buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(buffer_size)); |
| EXPECT_STREQ(kHello, buffer); |
| |
| // And MP 1, port 1. |
| mp1->Close(1); |
| } |
| |
| TEST_F(RemoteMessagePipeTest, HandlePassing) { |
| static const char kHello[] = "hello"; |
| Waiter waiter; |
| HandleSignalsState hss; |
| uint32_t context = 0; |
| |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| ConnectMessagePipes(mp0, mp1); |
| |
| // We'll try to pass this dispatcher. |
| scoped_refptr<MessagePipeDispatcher> dispatcher( |
| new MessagePipeDispatcher(MessagePipeDispatcher::kDefaultCreateOptions)); |
| scoped_refptr<MessagePipe> local_mp(new MessagePipe()); |
| dispatcher->Init(local_mp, 0); |
| |
| // Prepare to wait on MP 1, port 1. (Add the waiter now. Otherwise, if we do |
| // it later, it might already be readable.) |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 123, NULL)); |
| |
| // Write to MP 0, port 0. |
| { |
| DispatcherTransport transport( |
| test::DispatcherTryStartTransport(dispatcher.get())); |
| EXPECT_TRUE(transport.is_valid()); |
| |
| std::vector<DispatcherTransport> transports; |
| transports.push_back(transport); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->WriteMessage(0, |
| UserPointer<const void>(kHello), |
| sizeof(kHello), |
| &transports, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| transport.End(); |
| |
| // |dispatcher| should have been closed. This is |DCHECK()|ed when the |
| // |dispatcher| is destroyed. |
| EXPECT_TRUE(dispatcher->HasOneRef()); |
| dispatcher = NULL; |
| } |
| |
| // Wait. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(123u, context); |
| hss = HandleSignalsState(); |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Read from MP 1, port 1. |
| char read_buffer[100] = {0}; |
| uint32_t read_buffer_size = static_cast<uint32_t>(sizeof(read_buffer)); |
| DispatcherVector read_dispatchers; |
| uint32_t read_num_dispatchers = 10; // Maximum to get. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->ReadMessage(1, |
| UserPointer<void>(read_buffer), |
| MakeUserPointer(&read_buffer_size), |
| &read_dispatchers, |
| &read_num_dispatchers, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(read_buffer_size)); |
| EXPECT_STREQ(kHello, read_buffer); |
| EXPECT_EQ(1u, read_dispatchers.size()); |
| EXPECT_EQ(1u, read_num_dispatchers); |
| ASSERT_TRUE(read_dispatchers[0]); |
| EXPECT_TRUE(read_dispatchers[0]->HasOneRef()); |
| |
| EXPECT_EQ(Dispatcher::kTypeMessagePipe, read_dispatchers[0]->GetType()); |
| dispatcher = static_cast<MessagePipeDispatcher*>(read_dispatchers[0].get()); |
| |
| // Add the waiter now, before it becomes readable to avoid a race. |
| waiter.Init(); |
| ASSERT_EQ( |
| MOJO_RESULT_OK, |
| dispatcher->AddWaiter(&waiter, MOJO_HANDLE_SIGNAL_READABLE, 456, NULL)); |
| |
| // Write to "local_mp", port 1. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| local_mp->WriteMessage(1, |
| UserPointer<const void>(kHello), |
| sizeof(kHello), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // TODO(vtl): FIXME -- We (racily) crash if I close |dispatcher| immediately |
| // here. (We don't crash if I sleep and then close.) |
| |
| // Wait for the dispatcher to become readable. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(456u, context); |
| hss = HandleSignalsState(); |
| dispatcher->RemoveWaiter(&waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Read from the dispatcher. |
| memset(read_buffer, 0, sizeof(read_buffer)); |
| read_buffer_size = static_cast<uint32_t>(sizeof(read_buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| dispatcher->ReadMessage(UserPointer<void>(read_buffer), |
| MakeUserPointer(&read_buffer_size), |
| 0, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(read_buffer_size)); |
| EXPECT_STREQ(kHello, read_buffer); |
| |
| // Prepare to wait on "local_mp", port 1. |
| waiter.Init(); |
| ASSERT_EQ( |
| MOJO_RESULT_OK, |
| local_mp->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 789, NULL)); |
| |
| // Write to the dispatcher. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| dispatcher->WriteMessage(UserPointer<const void>(kHello), |
| sizeof(kHello), |
| NULL, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Wait. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(789u, context); |
| hss = HandleSignalsState(); |
| local_mp->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Read from "local_mp", port 1. |
| memset(read_buffer, 0, sizeof(read_buffer)); |
| read_buffer_size = static_cast<uint32_t>(sizeof(read_buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| local_mp->ReadMessage(1, |
| UserPointer<void>(read_buffer), |
| MakeUserPointer(&read_buffer_size), |
| NULL, |
| NULL, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(read_buffer_size)); |
| EXPECT_STREQ(kHello, read_buffer); |
| |
| // TODO(vtl): Also test that messages queued up before the handle was sent are |
| // delivered properly. |
| |
| // Close everything that belongs to us. |
| mp0->Close(0); |
| mp1->Close(1); |
| EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close()); |
| // Note that |local_mp|'s port 0 belong to |dispatcher|, which was closed. |
| local_mp->Close(1); |
| } |
| |
| #if defined(OS_POSIX) |
| #define MAYBE_SharedBufferPassing SharedBufferPassing |
| #else |
| // Not yet implemented (on Windows). |
| #define MAYBE_SharedBufferPassing DISABLED_SharedBufferPassing |
| #endif |
| TEST_F(RemoteMessagePipeTest, MAYBE_SharedBufferPassing) { |
| static const char kHello[] = "hello"; |
| Waiter waiter; |
| HandleSignalsState hss; |
| uint32_t context = 0; |
| |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| ConnectMessagePipes(mp0, mp1); |
| |
| // We'll try to pass this dispatcher. |
| scoped_refptr<SharedBufferDispatcher> dispatcher; |
| EXPECT_EQ( |
| MOJO_RESULT_OK, |
| SharedBufferDispatcher::Create( |
| SharedBufferDispatcher::kDefaultCreateOptions, 100, &dispatcher)); |
| ASSERT_TRUE(dispatcher); |
| |
| // Make a mapping. |
| scoped_ptr<RawSharedBufferMapping> mapping0; |
| EXPECT_EQ( |
| MOJO_RESULT_OK, |
| dispatcher->MapBuffer(0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping0)); |
| ASSERT_TRUE(mapping0); |
| ASSERT_TRUE(mapping0->base()); |
| ASSERT_EQ(100u, mapping0->length()); |
| static_cast<char*>(mapping0->base())[0] = 'A'; |
| static_cast<char*>(mapping0->base())[50] = 'B'; |
| static_cast<char*>(mapping0->base())[99] = 'C'; |
| |
| // Prepare to wait on MP 1, port 1. (Add the waiter now. Otherwise, if we do |
| // it later, it might already be readable.) |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 123, NULL)); |
| |
| // Write to MP 0, port 0. |
| { |
| DispatcherTransport transport( |
| test::DispatcherTryStartTransport(dispatcher.get())); |
| EXPECT_TRUE(transport.is_valid()); |
| |
| std::vector<DispatcherTransport> transports; |
| transports.push_back(transport); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->WriteMessage(0, |
| UserPointer<const void>(kHello), |
| sizeof(kHello), |
| &transports, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| transport.End(); |
| |
| // |dispatcher| should have been closed. This is |DCHECK()|ed when the |
| // |dispatcher| is destroyed. |
| EXPECT_TRUE(dispatcher->HasOneRef()); |
| dispatcher = NULL; |
| } |
| |
| // Wait. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(123u, context); |
| hss = HandleSignalsState(); |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Read from MP 1, port 1. |
| char read_buffer[100] = {0}; |
| uint32_t read_buffer_size = static_cast<uint32_t>(sizeof(read_buffer)); |
| DispatcherVector read_dispatchers; |
| uint32_t read_num_dispatchers = 10; // Maximum to get. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->ReadMessage(1, |
| UserPointer<void>(read_buffer), |
| MakeUserPointer(&read_buffer_size), |
| &read_dispatchers, |
| &read_num_dispatchers, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kHello), static_cast<size_t>(read_buffer_size)); |
| EXPECT_STREQ(kHello, read_buffer); |
| EXPECT_EQ(1u, read_dispatchers.size()); |
| EXPECT_EQ(1u, read_num_dispatchers); |
| ASSERT_TRUE(read_dispatchers[0]); |
| EXPECT_TRUE(read_dispatchers[0]->HasOneRef()); |
| |
| EXPECT_EQ(Dispatcher::kTypeSharedBuffer, read_dispatchers[0]->GetType()); |
| dispatcher = static_cast<SharedBufferDispatcher*>(read_dispatchers[0].get()); |
| |
| // Make another mapping. |
| scoped_ptr<RawSharedBufferMapping> mapping1; |
| EXPECT_EQ( |
| MOJO_RESULT_OK, |
| dispatcher->MapBuffer(0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping1)); |
| ASSERT_TRUE(mapping1); |
| ASSERT_TRUE(mapping1->base()); |
| ASSERT_EQ(100u, mapping1->length()); |
| EXPECT_NE(mapping1->base(), mapping0->base()); |
| EXPECT_EQ('A', static_cast<char*>(mapping1->base())[0]); |
| EXPECT_EQ('B', static_cast<char*>(mapping1->base())[50]); |
| EXPECT_EQ('C', static_cast<char*>(mapping1->base())[99]); |
| |
| // Write stuff either way. |
| static_cast<char*>(mapping1->base())[1] = 'x'; |
| EXPECT_EQ('x', static_cast<char*>(mapping0->base())[1]); |
| static_cast<char*>(mapping0->base())[2] = 'y'; |
| EXPECT_EQ('y', static_cast<char*>(mapping1->base())[2]); |
| |
| // Kill the first mapping; the second should still be valid. |
| mapping0.reset(); |
| EXPECT_EQ('A', static_cast<char*>(mapping1->base())[0]); |
| |
| // Close everything that belongs to us. |
| mp0->Close(0); |
| mp1->Close(1); |
| EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close()); |
| |
| // The second mapping should still be good. |
| EXPECT_EQ('x', static_cast<char*>(mapping1->base())[1]); |
| } |
| |
| #if defined(OS_POSIX) |
| #define MAYBE_PlatformHandlePassing PlatformHandlePassing |
| #else |
| // Not yet implemented (on Windows). |
| #define MAYBE_PlatformHandlePassing DISABLED_PlatformHandlePassing |
| #endif |
| TEST_F(RemoteMessagePipeTest, MAYBE_PlatformHandlePassing) { |
| base::ScopedTempDir temp_dir; |
| ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); |
| |
| static const char kHello[] = "hello"; |
| static const char kWorld[] = "world"; |
| Waiter waiter; |
| uint32_t context = 0; |
| HandleSignalsState hss; |
| |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| ConnectMessagePipes(mp0, mp1); |
| |
| base::FilePath unused; |
| base::ScopedFILE fp( |
| CreateAndOpenTemporaryFileInDir(temp_dir.path(), &unused)); |
| EXPECT_EQ(sizeof(kHello), fwrite(kHello, 1, sizeof(kHello), fp.get())); |
| // We'll try to pass this dispatcher, which will cause a |PlatformHandle| to |
| // be passed. |
| scoped_refptr<PlatformHandleDispatcher> dispatcher( |
| new PlatformHandleDispatcher( |
| mojo::test::PlatformHandleFromFILE(fp.Pass()))); |
| |
| // Prepare to wait on MP 1, port 1. (Add the waiter now. Otherwise, if we do |
| // it later, it might already be readable.) |
| waiter.Init(); |
| ASSERT_EQ(MOJO_RESULT_OK, |
| mp1->AddWaiter(1, &waiter, MOJO_HANDLE_SIGNAL_READABLE, 123, NULL)); |
| |
| // Write to MP 0, port 0. |
| { |
| DispatcherTransport transport( |
| test::DispatcherTryStartTransport(dispatcher.get())); |
| EXPECT_TRUE(transport.is_valid()); |
| |
| std::vector<DispatcherTransport> transports; |
| transports.push_back(transport); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp0->WriteMessage(0, |
| UserPointer<const void>(kWorld), |
| sizeof(kWorld), |
| &transports, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| transport.End(); |
| |
| // |dispatcher| should have been closed. This is |DCHECK()|ed when the |
| // |dispatcher| is destroyed. |
| EXPECT_TRUE(dispatcher->HasOneRef()); |
| dispatcher = NULL; |
| } |
| |
| // Wait. |
| EXPECT_EQ(MOJO_RESULT_OK, waiter.Wait(MOJO_DEADLINE_INDEFINITE, &context)); |
| EXPECT_EQ(123u, context); |
| hss = HandleSignalsState(); |
| mp1->RemoveWaiter(1, &waiter, &hss); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| hss.satisfiable_signals); |
| |
| // Read from MP 1, port 1. |
| char read_buffer[100] = {0}; |
| uint32_t read_buffer_size = static_cast<uint32_t>(sizeof(read_buffer)); |
| DispatcherVector read_dispatchers; |
| uint32_t read_num_dispatchers = 10; // Maximum to get. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| mp1->ReadMessage(1, |
| UserPointer<void>(read_buffer), |
| MakeUserPointer(&read_buffer_size), |
| &read_dispatchers, |
| &read_num_dispatchers, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(sizeof(kWorld), static_cast<size_t>(read_buffer_size)); |
| EXPECT_STREQ(kWorld, read_buffer); |
| EXPECT_EQ(1u, read_dispatchers.size()); |
| EXPECT_EQ(1u, read_num_dispatchers); |
| ASSERT_TRUE(read_dispatchers[0]); |
| EXPECT_TRUE(read_dispatchers[0]->HasOneRef()); |
| |
| EXPECT_EQ(Dispatcher::kTypePlatformHandle, read_dispatchers[0]->GetType()); |
| dispatcher = |
| static_cast<PlatformHandleDispatcher*>(read_dispatchers[0].get()); |
| |
| embedder::ScopedPlatformHandle h = dispatcher->PassPlatformHandle().Pass(); |
| EXPECT_TRUE(h.is_valid()); |
| |
| fp = mojo::test::FILEFromPlatformHandle(h.Pass(), "rb").Pass(); |
| EXPECT_FALSE(h.is_valid()); |
| EXPECT_TRUE(fp); |
| |
| rewind(fp.get()); |
| memset(read_buffer, 0, sizeof(read_buffer)); |
| EXPECT_EQ(sizeof(kHello), |
| fread(read_buffer, 1, sizeof(read_buffer), fp.get())); |
| EXPECT_STREQ(kHello, read_buffer); |
| |
| // Close everything that belongs to us. |
| mp0->Close(0); |
| mp1->Close(1); |
| EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close()); |
| } |
| |
| // Test racing closes (on each end). |
| // Note: A flaky failure would almost certainly indicate a problem in the code |
| // itself (not in the test). Also, any logged warnings/errors would also |
| // probably be indicative of bugs. |
| TEST_F(RemoteMessagePipeTest, RacingClosesStress) { |
| base::TimeDelta delay = base::TimeDelta::FromMilliseconds(5); |
| |
| for (unsigned i = 0; i < 256; i++) { |
| DVLOG(2) << "---------------------------------------- " << i; |
| scoped_refptr<MessagePipe> mp0(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()))); |
| BootstrapMessagePipeNoWait(0, mp0); |
| |
| scoped_refptr<MessagePipe> mp1(new MessagePipe( |
| scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint()), |
| scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()))); |
| BootstrapMessagePipeNoWait(1, mp1); |
| |
| if (i & 1u) { |
| io_thread()->task_runner()->PostTask( |
| FROM_HERE, base::Bind(&base::PlatformThread::Sleep, delay)); |
| } |
| if (i & 2u) |
| base::PlatformThread::Sleep(delay); |
| |
| mp0->Close(0); |
| |
| if (i & 4u) { |
| io_thread()->task_runner()->PostTask( |
| FROM_HERE, base::Bind(&base::PlatformThread::Sleep, delay)); |
| } |
| if (i & 8u) |
| base::PlatformThread::Sleep(delay); |
| |
| mp1->Close(1); |
| |
| RestoreInitialState(); |
| } |
| } |
| |
| } // namespace |
| } // namespace system |
| } // namespace mojo |
