forked from g4klx/MMDVMHost
-
Notifications
You must be signed in to change notification settings - Fork 0
/
DStarEcho.cpp
74 lines (59 loc) · 1.6 KB
/
DStarEcho.cpp
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
/*
* Copyright (C) 2015 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "DStarEcho.h"
CDStarEcho::CDStarEcho(unsigned int delay, unsigned int space) :
m_buffer(space),
m_timer(1000U, delay)
{
}
CDStarEcho::~CDStarEcho()
{
}
unsigned int CDStarEcho::readData(unsigned char* data)
{
if (!hasData())
return 0U;
unsigned char len;
m_buffer.getData(&len, 1U);
m_buffer.getData(data, len);
if (!hasData())
m_timer.stop();
return len;
}
bool CDStarEcho::writeData(const unsigned char* data, unsigned int length)
{
bool ret = m_buffer.hasSpace(length + 1U);
if (!ret)
return false;
unsigned char len = length;
m_buffer.addData(&len, 1U);
m_buffer.addData(data, length);
m_timer.start();
return true;
}
bool CDStarEcho::hasData()
{
if (m_timer.isRunning() && m_timer.hasExpired())
return m_buffer.hasData();
else
return false;
}
void CDStarEcho::clock(unsigned int ms)
{
m_timer.clock(ms);
}