Convert WriteMessage...() to use the new user pointer handling (see r285350).

mojo/system/multiprocess_message_pipe_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 <stdint.h>
 #include <stdio.h>
 #include <string.h>
 
 #include <string>
 #include <vector>
@@ skipping 164 matching lines @@
              MOJO_RESULT_OK);
     read_buffer.resize(read_buffer_size);
     VLOG(2) << "Child got: " << read_buffer;
 
     if (read_buffer == quitquitquit) {
       VLOG(2) << "Child quitting.";
       break;
     }
 
     std::string write_buffer = read_buffer + read_buffer;
-    CHECK_EQ(mp->WriteMessage(0,
-                              write_buffer.data(),
-                              static_cast<uint32_t>(write_buffer.size()),
-                              NULL,
+    CHECK_EQ(mp->WriteMessage(0, UserPointer<const void>(write_buffer.data()),
+                              static_cast<uint32_t>(write_buffer.size()), NULL,
                               MOJO_WRITE_MESSAGE_FLAG_NONE),
              MOJO_RESULT_OK);
   }
 
   mp->Close(0);
   return rv;
 }
 
 // Sends "hello" to child, and expects "hellohello" back.
 TEST_F(MultiprocessMessagePipeTest, Basic) {
   helper()->StartChild("EchoEcho");
 
   scoped_refptr<MessagePipe> mp(new MessagePipe(
       scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()),
       scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint())));
   Init(mp);
 
   std::string hello("hello");
   EXPECT_EQ(MOJO_RESULT_OK,
-            mp->WriteMessage(0,
-                             hello.data(), static_cast<uint32_t>(hello.size()),
-                             NULL,
+            mp->WriteMessage(0, UserPointer<const void>(hello.data()),
+                             static_cast<uint32_t>(hello.size()), NULL,
                              MOJO_WRITE_MESSAGE_FLAG_NONE));
 
   EXPECT_EQ(MOJO_RESULT_OK, WaitIfNecessary(mp, MOJO_HANDLE_SIGNAL_READABLE));
 
   std::string read_buffer(1000, '\0');
   uint32_t read_buffer_size = static_cast<uint32_t>(read_buffer.size());
   CHECK_EQ(mp->ReadMessage(0, UserPointer<void>(&read_buffer[0]),
                            MakeUserPointer(&read_buffer_size), NULL, NULL,
                            MOJO_READ_MESSAGE_FLAG_NONE),
            MOJO_RESULT_OK);
@@ skipping 14 matching lines @@
 
   scoped_refptr<MessagePipe> mp(new MessagePipe(
       scoped_ptr<MessagePipeEndpoint>(new LocalMessagePipeEndpoint()),
       scoped_ptr<MessagePipeEndpoint>(new ProxyMessagePipeEndpoint())));
   Init(mp);
 
   static const size_t kNumMessages = 1001;
   for (size_t i = 0; i < kNumMessages; i++) {
     std::string write_buffer(i, 'A' + (i % 26));
     EXPECT_EQ(MOJO_RESULT_OK,
-              mp->WriteMessage(0,
-                               write_buffer.data(),
-                               static_cast<uint32_t>(write_buffer.size()),
-                               NULL,
+              mp->WriteMessage(0, UserPointer<const void>(write_buffer.data()),
+                               static_cast<uint32_t>(write_buffer.size()), NULL,
                                MOJO_WRITE_MESSAGE_FLAG_NONE));
   }
 
   const std::string quitquitquit("quitquitquit");
   EXPECT_EQ(MOJO_RESULT_OK,
-            mp->WriteMessage(0,
-                             quitquitquit.data(),
-                             static_cast<uint32_t>(quitquitquit.size()),
-                             NULL,
+            mp->WriteMessage(0, UserPointer<const void>(quitquitquit.data()),
+                             static_cast<uint32_t>(quitquitquit.size()), NULL,
                              MOJO_WRITE_MESSAGE_FLAG_NONE));
 
   for (size_t i = 0; i < kNumMessages; i++) {
     EXPECT_EQ(MOJO_RESULT_OK, WaitIfNecessary(mp, MOJO_HANDLE_SIGNAL_READABLE));
 
     std::string read_buffer(kNumMessages * 2, '\0');
     uint32_t read_buffer_size = static_cast<uint32_t>(read_buffer.size());
     CHECK_EQ(mp->ReadMessage(0, UserPointer<void>(&read_buffer[0]),
                              MakeUserPointer(&read_buffer_size), NULL, NULL,
                              MOJO_READ_MESSAGE_FLAG_NONE),
@@ skipping 55 matching lines @@
 
   // Write some stuff to the shared buffer.
   static const char kHello[] = "hello";
   memcpy(mapping->base(), kHello, sizeof(kHello));
 
   // We should be able to close the dispatcher now.
   dispatcher->Close();
 
   // And send a message to signal that we've written stuff.
   const std::string go2("go 2");
-  CHECK_EQ(mp->WriteMessage(0,
-                            &go2[0],
-                            static_cast<uint32_t>(go2.size()),
-                            NULL,
+  CHECK_EQ(mp->WriteMessage(0, UserPointer<const void>(&go2[0]),
+                            static_cast<uint32_t>(go2.size()), NULL,
                             MOJO_WRITE_MESSAGE_FLAG_NONE),
            MOJO_RESULT_OK);
 
   // Now wait for our parent to send us a message.
   CHECK_EQ(WaitIfNecessary(mp, MOJO_HANDLE_SIGNAL_READABLE), MOJO_RESULT_OK);
 
   read_buffer = std::string(100, '\0');
   num_bytes = static_cast<uint32_t>(read_buffer.size());
   CHECK_EQ(mp->ReadMessage(0, UserPointer<void>(&read_buffer[0]),
                            MakeUserPointer(&num_bytes), NULL, NULL,
@@ skipping 44 matching lines @@
 
   // Send the shared buffer.
   const std::string go1("go 1");
   DispatcherTransport transport(
       test::DispatcherTryStartTransport(dispatcher.get()));
   ASSERT_TRUE(transport.is_valid());
 
   std::vector<DispatcherTransport> transports;
   transports.push_back(transport);
   EXPECT_EQ(MOJO_RESULT_OK,
-            mp->WriteMessage(0,
-                             &go1[0],
-                             static_cast<uint32_t>(go1.size()),
-                             &transports,
+            mp->WriteMessage(0, UserPointer<const void>(&go1[0]),
+                             static_cast<uint32_t>(go1.size()), &transports,
                              MOJO_WRITE_MESSAGE_FLAG_NONE));
   transport.End();
 
   EXPECT_TRUE(dispatcher->HasOneRef());
   dispatcher = NULL;
 
   // Wait for a message from the child.
   EXPECT_EQ(MOJO_RESULT_OK, WaitIfNecessary(mp, MOJO_HANDLE_SIGNAL_READABLE));
 
   std::string read_buffer(100, '\0');
@@ skipping 10 matching lines @@
   static const char kHello[] = "hello";
   EXPECT_EQ(0, memcmp(mapping->base(), kHello, sizeof(kHello)));
 
   // Now we'll write some stuff to the shared buffer.
   static const char kWorld[] = "world!!!";
   memcpy(mapping->base(), kWorld, sizeof(kWorld));
 
   // And send a message to signal that we've written stuff.
   const std::string go3("go 3");
   EXPECT_EQ(MOJO_RESULT_OK,
-            mp->WriteMessage(0,
-                             &go3[0],
-                             static_cast<uint32_t>(go3.size()),
-                             NULL,
+            mp->WriteMessage(0, UserPointer<const void>(&go3[0]),
+                             static_cast<uint32_t>(go3.size()), NULL,
                              MOJO_WRITE_MESSAGE_FLAG_NONE));
 
   // Wait for |mp| to become readable, which should fail.
   EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
             WaitIfNecessary(mp, MOJO_HANDLE_SIGNAL_READABLE));
 
   mp->Close(0);
 
   EXPECT_EQ(0, helper()->WaitForChildShutdown());
 }
@@ skipping 73 matching lines @@
       new PlatformHandleDispatcher(h.Pass()));
 
   const std::string hello("hello");
   DispatcherTransport transport(
       test::DispatcherTryStartTransport(dispatcher.get()));
   ASSERT_TRUE(transport.is_valid());
 
   std::vector<DispatcherTransport> transports;
   transports.push_back(transport);
   EXPECT_EQ(MOJO_RESULT_OK,
-            mp->WriteMessage(0,
-                             &hello[0],
-                             static_cast<uint32_t>(hello.size()),
-                             &transports,
+            mp->WriteMessage(0, UserPointer<const void>(&hello[0]),
+                             static_cast<uint32_t>(hello.size()), &transports,
                              MOJO_WRITE_MESSAGE_FLAG_NONE));
   transport.End();
 
   EXPECT_TRUE(dispatcher->HasOneRef());
   dispatcher = NULL;
 
   // Wait for it to become readable, which should fail.
   EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
             WaitIfNecessary(mp, MOJO_HANDLE_SIGNAL_READABLE));
 
   mp->Close(0);
 
   EXPECT_EQ(0, helper()->WaitForChildShutdown());
 }
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo