1 //
2 // Copyright (C) 2012 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 
17 #ifndef SHILL_NET_IO_HANDLER_H_
18 #define SHILL_NET_IO_HANDLER_H_
19 
20 #include <string>
21 
22 #include <base/callback.h>
23 
24 #include "shill/net/shill_export.h"
25 
26 namespace shill {
27 
28 struct SHILL_EXPORT InputData {
InputDataInputData29   InputData() : buf(nullptr), len(0) {}
InputDataInputData30   InputData(unsigned char* in_buf, size_t in_len) : buf(in_buf), len(in_len) {}
31 
32   unsigned char* buf;
33   size_t len;
34 };
35 
36 class SHILL_EXPORT IOHandler {
37  public:
38   enum ReadyMode {
39     kModeInput,
40     kModeOutput
41   };
42 
43   typedef base::Callback<void(const std::string&)> ErrorCallback;
44   typedef base::Callback<void(InputData*)> InputCallback;
45   typedef base::Callback<void(int)> ReadyCallback;
46 
47   // Data buffer size in bytes.
48   static const int kDataBufferSize = 4096;
49 
IOHandler()50   IOHandler() {}
~IOHandler()51   virtual ~IOHandler() {}
52 
Start()53   virtual void Start() {}
Stop()54   virtual void Stop() {}
55 };
56 
57 }  // namespace shill
58 
59 #endif  // SHILL_NET_IO_HANDLER_H_
60