1 // Copyright 2014 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #pragma once
16 
17 namespace android {
18 namespace base {
19 
20 // A list of values indicating the state of ongoing asynchronous operations.
21 // This is returned by various methods of helper classes like AsyncReader
22 // or AsyncWriter to indicate to the caller what to do next.
23 //
24 // |kAsyncCompleted| means the operation completed properly.
25 // |kAsyncAgain| means the operation hasn't finished yet.
26 // |kAsyncError| indicates that an i/o error occured and was detected.
27 //
28 enum AsyncStatus {
29     kAsyncCompleted = 0,
30     kAsyncAgain,
31     kAsyncError
32 };
33 
34 }  // namespace base
35 }  // namespace android
36