1// Copyright 2014 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#ifndef MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_ 6#define MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_ 7 8#include "mojo/public/cpp/system/macros.h" 9 10struct MojoAsyncWaiter; 11struct MojoLogger; 12 13namespace mojo { 14 15// Other parts of the Mojo C++ APIs use the *static* methods of this class. 16// 17// The "standalone" implementation of this class requires that this class (in 18// the lib/ subdirectory) be instantiated (and remain so) while using the Mojo 19// C++ APIs. I.e., the static methods depend on things set up by the constructor 20// and torn down by the destructor. 21// 22// Other implementations may not have this requirement. 23class Environment { 24 public: 25 Environment(); 26 // This constructor allows the standard implementations to be overridden (set 27 // a parameter to null to get the standard implementation). 28 Environment(const MojoAsyncWaiter* default_async_waiter, 29 const MojoLogger* default_logger); 30 ~Environment(); 31 32 static const MojoAsyncWaiter* GetDefaultAsyncWaiter(); 33 static const MojoLogger* GetDefaultLogger(); 34 35 private: 36 MOJO_DISALLOW_COPY_AND_ASSIGN(Environment); 37}; 38 39} // namespace mojo 40 41#endif // MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_ 42