Mojo C++ bindings: introduce MultiplexRouter and related classes.

mojo/public/cpp/bindings/tests/connector_unittest.cc

 // Copyright 2013 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 <stdlib.h>
 #include <string.h>
 
 #include "base/message_loop/message_loop.h"
 #include "mojo/message_pump/message_pump_mojo.h"
 #include "mojo/public/cpp/bindings/lib/connector.h"
@@ skipping 82 matching lines @@
 
  protected:
   ScopedMessagePipeHandle handle0_;
   ScopedMessagePipeHandle handle1_;
 
  private:
   base::MessageLoop loop_;
 };
 
 TEST_F(ConnectorTest, Basic) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char kText[] = "hello world";
 
   Message message;
   AllocMessage(kText, &message);
 
   connector0.Accept(&message);
 
   MessageAccumulator accumulator;
   connector1.set_incoming_receiver(&accumulator);
 
   PumpMessages();
 
   ASSERT_FALSE(accumulator.IsEmpty());
 
   Message message_received;
   accumulator.Pop(&message_received);
 
   EXPECT_EQ(
       std::string(kText),
       std::string(reinterpret_cast<const char*>(message_received.payload())));
 }
 
 TEST_F(ConnectorTest, Basic_Synchronous) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char kText[] = "hello world";
 
   Message message;
   AllocMessage(kText, &message);
 
   connector0.Accept(&message);
 
   MessageAccumulator accumulator;
   connector1.set_incoming_receiver(&accumulator);
 
   connector1.WaitForIncomingMessage(MOJO_DEADLINE_INDEFINITE);
 
   ASSERT_FALSE(accumulator.IsEmpty());
 
   Message message_received;
   accumulator.Pop(&message_received);
 
   EXPECT_EQ(
       std::string(kText),
       std::string(reinterpret_cast<const char*>(message_received.payload())));
 }
 
 TEST_F(ConnectorTest, Basic_EarlyIncomingReceiver) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   MessageAccumulator accumulator;
   connector1.set_incoming_receiver(&accumulator);
 
   const char kText[] = "hello world";
 
   Message message;
   AllocMessage(kText, &message);
 
   connector0.Accept(&message);
 
   PumpMessages();
 
   ASSERT_FALSE(accumulator.IsEmpty());
 
   Message message_received;
   accumulator.Pop(&message_received);
 
   EXPECT_EQ(
       std::string(kText),
       std::string(reinterpret_cast<const char*>(message_received.payload())));
 }
 
 TEST_F(ConnectorTest, Basic_TwoMessages) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char* kText[] = {"hello", "world"};
 
   for (size_t i = 0; i < MOJO_ARRAYSIZE(kText); ++i) {
     Message message;
     AllocMessage(kText[i], &message);
 
     connector0.Accept(&message);
   }
 
   MessageAccumulator accumulator;
   connector1.set_incoming_receiver(&accumulator);
 
   PumpMessages();
 
   for (size_t i = 0; i < MOJO_ARRAYSIZE(kText); ++i) {
     ASSERT_FALSE(accumulator.IsEmpty());
 
     Message message_received;
     accumulator.Pop(&message_received);
 
     EXPECT_EQ(
         std::string(kText[i]),
         std::string(reinterpret_cast<const char*>(message_received.payload())));
   }
 }
 
 TEST_F(ConnectorTest, Basic_TwoMessages_Synchronous) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char* kText[] = {"hello", "world"};
 
   for (size_t i = 0; i < MOJO_ARRAYSIZE(kText); ++i) {
     Message message;
     AllocMessage(kText[i], &message);
 
     connector0.Accept(&message);
   }
 
   MessageAccumulator accumulator;
   connector1.set_incoming_receiver(&accumulator);
 
   connector1.WaitForIncomingMessage(MOJO_DEADLINE_INDEFINITE);
 
   ASSERT_FALSE(accumulator.IsEmpty());
 
   Message message_received;
   accumulator.Pop(&message_received);
 
   EXPECT_EQ(
       std::string(kText[0]),
       std::string(reinterpret_cast<const char*>(message_received.payload())));
 
   ASSERT_TRUE(accumulator.IsEmpty());
 }
 
 TEST_F(ConnectorTest, WriteToClosedPipe) {
-  internal::Connector connector0(handle0_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char kText[] = "hello world";
 
   Message message;
   AllocMessage(kText, &message);
 
   // Close the other end of the pipe.
   handle1_.reset();
 
   // Not observed yet because we haven't spun the message loop yet.
   EXPECT_FALSE(connector0.encountered_error());
 
   // Write failures are not reported.
   bool ok = connector0.Accept(&message);
   EXPECT_TRUE(ok);
 
   // Still not observed.
   EXPECT_FALSE(connector0.encountered_error());
 
   // Spin the message loop, and then we should start observing the closed pipe.
   PumpMessages();
 
   EXPECT_TRUE(connector0.encountered_error());
 }
 
 TEST_F(ConnectorTest, MessageWithHandles) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char kText[] = "hello world";
 
   Message message1;
   AllocMessage(kText, &message1);
 
   MessagePipe pipe;
   message1.mutable_handles()->push_back(pipe.handle0.release());
 
   connector0.Accept(&message1);
@@ skipping 17 matching lines @@
   ASSERT_EQ(1U, message_received.handles()->size());
 
   // Now send a message to the transferred handle and confirm it's sent through
   // to the orginal pipe.
   // TODO(vtl): Do we need a better way of "downcasting" the handle types?
   ScopedMessagePipeHandle smph;
   smph.reset(MessagePipeHandle(message_received.handles()->front().value()));
   message_received.mutable_handles()->front() = Handle();
   // |smph| now owns this handle.
 
-  internal::Connector connector_received(smph.Pass());
-  internal::Connector connector_original(pipe.handle1.Pass());
+  internal::Connector connector_received(
+      smph.Pass(), internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector_original(
+      pipe.handle1.Pass(), internal::Connector::SINGLE_THREADED_SEND);
 
   Message message2;
   AllocMessage(kText, &message2);
 
   connector_received.Accept(&message2);
   connector_original.set_incoming_receiver(&accumulator);
   PumpMessages();
 
   ASSERT_FALSE(accumulator.IsEmpty());
 
   accumulator.Pop(&message_received);
 
   EXPECT_EQ(
       std::string(kText),
       std::string(reinterpret_cast<const char*>(message_received.payload())));
 }
 
 TEST_F(ConnectorTest, WaitForIncomingMessageWithError) {
-  internal::Connector connector0(handle0_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
   // Close the other end of the pipe.
   handle1_.reset();
   ASSERT_FALSE(connector0.WaitForIncomingMessage(MOJO_DEADLINE_INDEFINITE));
 }
 
 TEST_F(ConnectorTest, WaitForIncomingMessageWithDeletion) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector* connector1 = new internal::Connector(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector* connector1 = new internal::Connector(
+      handle1_.Pass(), internal::Connector::SINGLE_THREADED_SEND);
 
   const char kText[] = "hello world";
 
   Message message;
   AllocMessage(kText, &message);
 
   connector0.Accept(&message);
 
   ConnectorDeletingMessageAccumulator accumulator(&connector1);
   connector1->set_incoming_receiver(&accumulator);
 
   connector1->WaitForIncomingMessage(MOJO_DEADLINE_INDEFINITE);
 
   ASSERT_FALSE(connector1);
   ASSERT_FALSE(accumulator.IsEmpty());
 
   Message message_received;
   accumulator.Pop(&message_received);
 
   EXPECT_EQ(
       std::string(kText),
       std::string(reinterpret_cast<const char*>(message_received.payload())));
 }
 
 TEST_F(ConnectorTest, WaitForIncomingMessageWithReentrancy) {
-  internal::Connector connector0(handle0_.Pass());
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
 
   const char* kText[] = {"hello", "world"};
 
   for (size_t i = 0; i < MOJO_ARRAYSIZE(kText); ++i) {
     Message message;
     AllocMessage(kText[i], &message);
 
     connector0.Accept(&message);
   }
 
@@ skipping 10 matching lines @@
 
     EXPECT_EQ(
         std::string(kText[i]),
         std::string(reinterpret_cast<const char*>(message_received.payload())));
   }
 
   ASSERT_EQ(2, accumulator.number_of_calls());
 }
 
 TEST_F(ConnectorTest, RaiseError) {
-  internal::Connector connector0(handle0_.Pass());
+  internal::Connector connector0(handle0_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
   bool error_handler_called0 = false;
   connector0.set_connection_error_handler(
       [&error_handler_called0]() { error_handler_called0 = true; });
 
-  internal::Connector connector1(handle1_.Pass());
+  internal::Connector connector1(handle1_.Pass(),
+                                 internal::Connector::SINGLE_THREADED_SEND);
   bool error_handler_called1 = false;
   connector1.set_connection_error_handler(
       [&error_handler_called1]() { error_handler_called1 = true; });
 
   const char kText[] = "hello world";
 
   Message message;
   AllocMessage(kText, &message);
 
   connector0.Accept(&message);
@@ skipping 25 matching lines @@
   EXPECT_TRUE(connector1.encountered_error());
 
   // The message pipe handle is valid at both sides.
   EXPECT_TRUE(connector0.is_valid());
   EXPECT_TRUE(connector1.is_valid());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo