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      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 #include "device/serial/async_waiter.h"
      6 
      7 namespace device {
      8 
      9 AsyncWaiter::AsyncWaiter(mojo::Handle handle,
     10                          MojoHandleSignals signals,
     11                          const Callback& callback)
     12     : waiter_(mojo::Environment::GetDefaultAsyncWaiter()),
     13       id_(0),
     14       callback_(callback) {
     15   id_ = waiter_->AsyncWait(handle.value(),
     16                            signals,
     17                            MOJO_DEADLINE_INDEFINITE,
     18                            &AsyncWaiter::WaitComplete,
     19                            this);
     20 }
     21 
     22 AsyncWaiter::~AsyncWaiter() {
     23   if (id_)
     24     waiter_->CancelWait(id_);
     25 }
     26 
     27 // static
     28 void AsyncWaiter::WaitComplete(void* waiter, MojoResult result) {
     29   static_cast<AsyncWaiter*>(waiter)->WaitCompleteInternal(result);
     30 }
     31 
     32 void AsyncWaiter::WaitCompleteInternal(MojoResult result) {
     33   id_ = 0;
     34   callback_.Run(result);
     35 }
     36 
     37 }  // namespace device
     38