| // Copyright 2016 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. |
| |
| // This file tests the C++ wrappers in mojo/public/cpp/system/message_pipe.h. |
| |
| #include "mojo/public/cpp/system/message_pipe.h" |
| |
| #include <vector> |
| |
| #include "mojo/public/cpp/system/handle.h" |
| #include "mojo/public/cpp/system/wait.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace mojo { |
| namespace { |
| |
| TEST(MessagePipeTest, InvalidArgs) { |
| MessagePipeHandle h_invalid; |
| EXPECT_FALSE(h_invalid.is_valid()); |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| WriteMessageRaw(h_invalid, nullptr, 0, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| char buffer[10] = {0}; |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| WriteMessageRaw(h_invalid, buffer, sizeof(buffer), nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| ReadMessageRaw(h_invalid, nullptr, nullptr, nullptr, nullptr, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| ReadMessageRaw(h_invalid, buffer, &buffer_size, nullptr, nullptr, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| } |
| |
| TEST(MessagePipeTest, BasicWaitingAndClosing) { |
| // Cursory compilation test of |MakeScopedHandle()| with message pipe handles. |
| EXPECT_FALSE(MakeScopedHandle(MessagePipeHandle()).is_valid()); |
| |
| MojoHandle hv0 = kInvalidHandleValue; |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| EXPECT_FALSE(h0.get().is_valid()); |
| EXPECT_FALSE(h1.get().is_valid()); |
| |
| ASSERT_EQ(MOJO_RESULT_OK, CreateMessagePipe(nullptr, &h0, &h1)); |
| EXPECT_TRUE(h0.get().is_valid()); |
| EXPECT_TRUE(h1.get().is_valid()); |
| EXPECT_NE(h0.get().value(), h1.get().value()); |
| // Save the handle values, so we can check that things got closed |
| // correctly. |
| hv0 = h0.get().value(); |
| MojoHandle hv1 = h1.get().value(); |
| MojoHandleSignalsState state; |
| |
| EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, |
| Wait(h0.get(), MOJO_HANDLE_SIGNAL_READABLE, 0, &state)); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, state.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED, |
| state.satisfiable_signals); |
| |
| std::vector<Handle> wh; |
| wh.push_back(h0.get()); |
| wh.push_back(h1.get()); |
| std::vector<MojoHandleSignals> sigs; |
| sigs.push_back(MOJO_HANDLE_SIGNAL_READABLE); |
| sigs.push_back(MOJO_HANDLE_SIGNAL_WRITABLE); |
| std::vector<MojoHandleSignalsState> states(sigs.size()); |
| WaitManyResult wait_many_result = WaitMany(wh, sigs, 1000, &states); |
| EXPECT_EQ(MOJO_RESULT_OK, wait_many_result.result); |
| EXPECT_EQ(1u, wait_many_result.index); |
| EXPECT_TRUE(wait_many_result.IsIndexValid()); |
| EXPECT_TRUE(wait_many_result.AreSignalsStatesValid()); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, states[0].satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED, |
| states[0].satisfiable_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, states[1].satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED, |
| states[1].satisfiable_signals); |
| |
| // Test closing |h1| explicitly. |
| Close(h1.Pass()); |
| EXPECT_FALSE(h1.get().is_valid()); |
| |
| // Make sure |h1| is closed. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| Wait(Handle(hv1), ~MOJO_HANDLE_SIGNAL_NONE, |
| MOJO_DEADLINE_INDEFINITE, nullptr)); |
| |
| EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, |
| Wait(h0.get(), MOJO_HANDLE_SIGNAL_READABLE, |
| MOJO_DEADLINE_INDEFINITE, &state)); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_PEER_CLOSED, state.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_PEER_CLOSED, state.satisfiable_signals); |
| } |
| // |hv0| should have been closed when |h0| went out of scope, so this close |
| // should fail. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(hv0)); |
| } |
| |
| TEST(MessagePipeTest, BasicWritingAndReading) { |
| MojoHandle hv0 = kInvalidHandleValue; |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| ASSERT_EQ(MOJO_RESULT_OK, CreateMessagePipe(nullptr, &h0, &h1)); |
| |
| const char kHello[] = "hello"; |
| const uint32_t kHelloSize = static_cast<uint32_t>(sizeof(kHello)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h0.get(), kHello, kHelloSize, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| MojoHandleSignalsState state; |
| EXPECT_EQ(MOJO_RESULT_OK, Wait(h1.get(), MOJO_HANDLE_SIGNAL_READABLE, |
| MOJO_DEADLINE_INDEFINITE, &state)); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| state.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED, |
| state.satisfiable_signals); |
| |
| char buffer[10] = {0}; |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| ReadMessageRaw(h1.get(), buffer, &buffer_size, nullptr, nullptr, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(kHelloSize, buffer_size); |
| EXPECT_STREQ(kHello, buffer); |
| |
| // Send a handle over the previously-establish message pipe. Use the |
| // |MessagePipe| wrapper (to test it), which automatically creates a |
| // message pipe. |
| MessagePipe mp; |
| |
| // Write a message to |mp.handle0|, before we send |mp.handle1|. |
| const char kWorld[] = "world!"; |
| const uint32_t kWorldSize = static_cast<uint32_t>(sizeof(kWorld)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(mp.handle0.get(), kWorld, kWorldSize, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Send |mp.handle1| over |h1| to |h0|. |
| MojoHandle handles[5]; |
| handles[0] = mp.handle1.release().value(); |
| EXPECT_NE(kInvalidHandleValue, handles[0]); |
| EXPECT_FALSE(mp.handle1.get().is_valid()); |
| uint32_t handles_count = 1; |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h1.get(), kHello, kHelloSize, handles, |
| handles_count, MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // |handles[0]| should actually be invalid now. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(handles[0])); |
| |
| // Read "hello" and the sent handle. |
| EXPECT_EQ(MOJO_RESULT_OK, Wait(h0.get(), MOJO_HANDLE_SIGNAL_READABLE, |
| MOJO_DEADLINE_INDEFINITE, &state)); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| state.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED, |
| state.satisfiable_signals); |
| |
| memset(buffer, 0, sizeof(buffer)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| for (size_t i = 0; i < MOJO_ARRAYSIZE(handles); i++) |
| handles[i] = kInvalidHandleValue; |
| handles_count = static_cast<uint32_t>(MOJO_ARRAYSIZE(handles)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| ReadMessageRaw(h0.get(), buffer, &buffer_size, handles, |
| &handles_count, MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(kHelloSize, buffer_size); |
| EXPECT_STREQ(kHello, buffer); |
| EXPECT_EQ(1u, handles_count); |
| EXPECT_NE(kInvalidHandleValue, handles[0]); |
| |
| // Read from the sent/received handle. |
| mp.handle1.reset(MessagePipeHandle(handles[0])); |
| // Save |handles[0]| to check that it gets properly closed. |
| hv0 = handles[0]; |
| |
| EXPECT_EQ(MOJO_RESULT_OK, |
| Wait(mp.handle1.get(), MOJO_HANDLE_SIGNAL_READABLE, |
| MOJO_DEADLINE_INDEFINITE, &state)); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE, |
| state.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED, |
| state.satisfiable_signals); |
| |
| memset(buffer, 0, sizeof(buffer)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| for (size_t i = 0; i < MOJO_ARRAYSIZE(handles); i++) |
| handles[i] = kInvalidHandleValue; |
| handles_count = static_cast<uint32_t>(MOJO_ARRAYSIZE(handles)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| ReadMessageRaw(mp.handle1.get(), buffer, &buffer_size, handles, |
| &handles_count, MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(kWorldSize, buffer_size); |
| EXPECT_STREQ(kWorld, buffer); |
| EXPECT_EQ(0u, handles_count); |
| } |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(hv0)); |
| } |
| |
| // TODO(vtl): This is not the right level to test this at. |
| TEST(MessagePipeTest, TearDownWithMessagesEnqueued) { |
| // Tear down a message pipe which still has a message enqueued, with the |
| // message also having a valid message pipe handle. |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| ASSERT_EQ(MOJO_RESULT_OK, CreateMessagePipe(nullptr, &h0, &h1)); |
| |
| // Send a handle over the previously-establish message pipe. |
| ScopedMessagePipeHandle h2; |
| ScopedMessagePipeHandle h3; |
| ASSERT_EQ(MOJO_RESULT_OK, CreateMessagePipe(nullptr, &h2, &h3)); |
| |
| // Write a message to |h2|, before we send |h3|. |
| const char kWorld[] = "world!"; |
| const uint32_t kWorldSize = static_cast<uint32_t>(sizeof(kWorld)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h2.get(), kWorld, kWorldSize, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // And also a message to |h3|. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h3.get(), kWorld, kWorldSize, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Send |h3| over |h1| to |h0|. |
| const char kHello[] = "hello"; |
| const uint32_t kHelloSize = static_cast<uint32_t>(sizeof(kHello)); |
| MojoHandle h3_value; |
| h3_value = h3.release().value(); |
| EXPECT_NE(kInvalidHandleValue, h3_value); |
| EXPECT_FALSE(h3.get().is_valid()); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h1.get(), kHello, kHelloSize, &h3_value, 1, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // |h3_value| should actually be invalid now. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(h3_value)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h1.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h2.release().value())); |
| } |
| |
| // Do this in a different order: make the enqueued message pipe handle only |
| // half-alive. |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| ASSERT_EQ(MOJO_RESULT_OK, CreateMessagePipe(nullptr, &h0, &h1)); |
| |
| // Send a handle over the previously-establish message pipe. |
| ScopedMessagePipeHandle h2; |
| ScopedMessagePipeHandle h3; |
| ASSERT_EQ(MOJO_RESULT_OK, CreateMessagePipe(nullptr, &h2, &h3)); |
| |
| // Write a message to |h2|, before we send |h3|. |
| const char kWorld[] = "world!"; |
| const uint32_t kWorldSize = static_cast<uint32_t>(sizeof(kWorld)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h2.get(), kWorld, kWorldSize, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // And also a message to |h3|. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h3.get(), kWorld, kWorldSize, nullptr, 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Send |h3| over |h1| to |h0|. |
| const char kHello[] = "hello"; |
| const uint32_t kHelloSize = static_cast<uint32_t>(sizeof(kHello)); |
| MojoHandle h3_value; |
| h3_value = h3.release().value(); |
| EXPECT_NE(kInvalidHandleValue, h3_value); |
| EXPECT_FALSE(h3.get().is_valid()); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h1.get(), kHello, kHelloSize, &h3_value, 1, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // |h3_value| should actually be invalid now. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(h3_value)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h2.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h1.release().value())); |
| } |
| } |
| |
| } // namespace |
| } // namespace mojo |