|  | // Copyright 2018 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. | 
|  |  | 
|  | #ifndef BASE_MESSAGE_LOOP_MESSAGE_PUMP_FOR_IO_H_ | 
|  | #define BASE_MESSAGE_LOOP_MESSAGE_PUMP_FOR_IO_H_ | 
|  |  | 
|  | // This header is a forwarding header to coalesce the various platform specific | 
|  | // types representing MessagePumpForIO. | 
|  |  | 
|  | #include "build_config.h" | 
|  |  | 
|  | #if defined(OS_WIN) | 
|  | #include "base/message_loop/message_pump_win.h" | 
|  | #elif defined(OS_IOS) | 
|  | #include "base/message_loop/message_pump_io_ios.h" | 
|  | #elif defined(OS_NACL_SFI) | 
|  | #include "base/message_loop/message_pump_default.h" | 
|  | #elif defined(OS_FUCHSIA) | 
|  | #include "base/message_loop/message_pump_fuchsia.h" | 
|  | #elif defined(OS_POSIX) | 
|  | #include "base/message_loop/message_pump_libevent.h" | 
|  | #endif | 
|  |  | 
|  | namespace base { | 
|  |  | 
|  | #if defined(OS_WIN) | 
|  | // Windows defines it as-is. | 
|  | using MessagePumpForIO = MessagePumpForIO; | 
|  | #elif defined(OS_IOS) | 
|  | using MessagePumpForIO = MessagePumpIOSForIO; | 
|  | #elif defined(OS_NACL_SFI) | 
|  | using MessagePumpForIO = MessagePumpDefault; | 
|  | #elif defined(OS_FUCHSIA) | 
|  | using MessagePumpForIO = MessagePumpFuchsia; | 
|  | #elif defined(OS_POSIX) | 
|  | using MessagePumpForIO = MessagePumpLibevent; | 
|  | #else | 
|  | #error Platform does not define MessagePumpForIO | 
|  | #endif | 
|  |  | 
|  | }  // namespace base | 
|  |  | 
|  | #endif  // BASE_MESSAGE_LOOP_MESSAGE_PUMP_FOR_IO_H_ |