/
NullPort.hpp
56 lines (44 loc) · 1.12 KB
/
NullPort.hpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
// Copyright 2016 Rob Riggs <rob@mobilinkd.com>
// All rights reserved.
#ifndef MOBILINKD__TNC__NULL_PORT_HPP_
#define MOBILINKD__TNC__NULL_PORT_HPP_
#include "PortInterface.hpp"
#include <atomic>
namespace mobilinkd { namespace tnc {
/**
* This interface defines the semi-asynchronous interface used for reading
* and writing
*/
struct NullPort : PortInterface
{
virtual ~NullPort() {}
virtual bool open()
{
if (open_) return open_;
open_ = true;
return open_;
}
virtual bool isOpen() const { return open_; }
virtual void close() {
open_ = false;
}
virtual osMessageQId queue() const { return 0; }
virtual bool write(const uint8_t*, uint32_t, uint8_t, uint32_t)
{
return true;
}
virtual bool write(const uint8_t*, uint32_t, uint32_t)
{
return true;
}
virtual bool write(hdlc::IoFrame* frame, uint32_t = osWaitForever)
{
hdlc::release(frame);
return true;
}
void init() {}
std::atomic<bool> open_{false};
};
NullPort* getNullPort();
}} // mobilinkd::tnc
#endif // MOBILINKD__TNC__NULL_PORT_HPP_