mojo/examples/sample_app/sample_app.cc

   1 // Copyright 2013 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 <stdio.h>
   6 #include <string>
   7
   8 #include "base/message_loop/message_loop.h"
   9 #include "mojo/common/bindings_support_impl.h"
  10 #include "mojo/examples/sample_app/hello_world_client_impl.h"
  11 #include "mojo/public/bindings/lib/bindings_support.h"
  12 #include "mojo/public/system/core.h"
  13 #include "mojo/public/system/macros.h"
  14
  15 #if defined(WIN32)
  16 #if !defined(CDECL)
  17 #define CDECL __cdecl
  18 #endif
  19 #define SAMPLE_APP_EXPORT __declspec(dllexport)
  20 #else
  21 #define CDECL
  22 #define SAMPLE_APP_EXPORT __attribute__((visibility("default")))
  23 #endif
  24
  25 namespace mojo {
  26 namespace examples {
  27
  28 void SayHello(mojo::Handle pipe) {
  29   // Send message out.
  30   HelloWorldClientImpl client(pipe);
  31   mojo::ScratchBuffer buf;
  32   const std::string kGreeting("hello, world!");
  33   mojo::String* greeting = mojo::String::NewCopyOf(&buf, kGreeting);
  34   client.service()->Greeting(greeting);
  35
  36   // Run loop to receieve Ack. The client will quit the loop.
  37   base::MessageLoop::current()->Run();
  38 }
  39
  40 }  // examples
  41 }  // mojo
  42
  43 extern "C" SAMPLE_APP_EXPORT MojoResult CDECL MojoMain(
  44     mojo::Handle pipe) {
  45   base::MessageLoop loop;
  46   // Set the global bindings support.
  47   mojo::common::BindingsSupportImpl bindings_support;
  48   mojo::BindingsSupport::Set(&bindings_support);
  49
  50   mojo::examples::SayHello(pipe);
  51
  52   mojo::BindingsSupport::Set(NULL);
  53   return MOJO_RESULT_OK;
  54 }