OpenZWave Library: Stream.h Source File

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Stream.h
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1//-----------------------------------------------------------------------------
2//
3// Stream.h
4//
5// Cross-platform circular buffer with signalling
6//
7// Copyright (c) 2010 Mal Lansell <mal@lansell.org>
8// All rights reserved.
9//
10// SOFTWARE NOTICE AND LICENSE
11//
12// This file is part of OpenZWave.
13//
14// OpenZWave is free software: you can redistribute it and/or modify
15// it under the terms of the GNU Lesser General Public License as published
16// by the Free Software Foundation, either version 3 of the License,
17// or (at your option) any later version.
18//
19// OpenZWave is distributed in the hope that it will be useful,
20// but WITHOUT ANY WARRANTY; without even the implied warranty of
21// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22// GNU Lesser General Public License for more details.
23//
24// You should have received a copy of the GNU Lesser General Public License
25// along with OpenZWave. If not, see <http://www.gnu.org/licenses/>.
26//
27//-----------------------------------------------------------------------------
28#ifndef _Stream_H
29#define _Stream_H
30
31#include "Defs.h"
32#include "platform/Wait.h"
33
34#include <string>
35
36namespace OpenZWave
37{
38 class Mutex;
39
43 class Stream: public Wait
44 {
45 friend class Wait;
46
47 public:
52 Stream( uint32 _bufferSize );
53
61 void SetSignalThreshold( uint32 _size );
62
63
73 bool Get( uint8* _buffer, uint32 _size );
74
84 bool Put( uint8* _buffer, uint32 _size );
85
91 uint32 GetDataSize()const{ return m_dataSize; }
92
98 void Purge();
99
100 protected:
107 void LogData( uint8* _buffer, uint32 _size, const string &_function );
108
112 virtual bool IsSignalled();
113
118 ~Stream();
119
120 private:
121 Stream( Stream const& ); // prevent copy
122 Stream& operator = ( Stream const& ); // prevent assignment
123
124 uint8* m_buffer;
125 uint32 m_bufferSize;
126 uint32 m_signalSize;
127 uint32 m_dataSize;
128 uint32 m_head;
129 uint32 m_tail;
130 Mutex* m_mutex;
131 };
132
133} // namespace OpenZWave
134
135#endif //_Event_H
136
Defs.h
uint32
unsigned int uint32
Definition Defs.h:95
uint8
unsigned char uint8
Definition Defs.h:89
Wait.h
OpenZWave::Mutex
Implements a platform-independent mutex–for serializing access to a shared resource.
Definition Mutex.h:41
OpenZWave::Stream
Platform-independent definition of a circular buffer.
Definition Stream.h:44
OpenZWave::Stream::LogData
void LogData(uint8 *_buffer, uint32 _size, const string &_function)
Definition Stream.cpp:208
OpenZWave::Stream::Get
bool Get(uint8 *_buffer, uint32 _size)
Definition Stream.cpp:91
OpenZWave::Stream::Put
bool Put(uint8 *_buffer, uint32 _size)
Definition Stream.cpp:133
OpenZWave::Stream::GetDataSize
uint32 GetDataSize() const
Definition Stream.h:91
OpenZWave::Stream::IsSignalled
virtual bool IsSignalled()
Definition Stream.cpp:197
OpenZWave::Stream::~Stream
~Stream()
Definition Stream.cpp:62
OpenZWave::Stream::Purge
void Purge()
Definition Stream.cpp:184
OpenZWave::Stream::SetSignalThreshold
void SetSignalThreshold(uint32 _size)
Definition Stream.cpp:74
OpenZWave::Wait
Platform-independent definition of Wait objects.
Definition Wait.h:43
OpenZWave
Definition Bitfield.h:35