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.
5 #ifndef MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_
6 #define MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_
8 #include "mojo/public/cpp/system/macros.h"
10 struct MojoAsyncWaiter;
15 // Other parts of the Mojo C++ APIs use the *static* methods of this class.
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.
22 // Other implementations may not have this requirement.
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);
32 static const MojoAsyncWaiter* GetDefaultAsyncWaiter();
33 static const MojoLogger* GetDefaultLogger();
35 // These instantiate and destroy an environment-specific run loop for the
36 // current thread, allowing |GetDefaultAsyncWaiter()| to be used. (The run
37 // loop itself should be accessible via thread-local storage, using methods
38 // specific to the run loop implementation.) Creating and destroying nested
39 // run loops is not supported.
40 static void InstantiateDefaultRunLoop();
41 static void DestroyDefaultRunLoop();
44 MOJO_DISALLOW_COPY_AND_ASSIGN(Environment);
49 #endif // MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_