Open Lighting Architecture: include/ola/io/OutputStream.h Source File

| Open Lighting Architecture 0.10.9

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OutputStream.h
1/*
2 * This library is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2.1 of the License, or (at your option) any later version.
6 *
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with this library; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15 *
16 * OutputStream.h
17 * A class that you can write structured data to.
18 * Copyright (C) 2012 Simon Newton
19 */
20
21#ifndef INCLUDE_OLA_IO_OUTPUTSTREAM_H_
22#define INCLUDE_OLA_IO_OUTPUTSTREAM_H_
23
24#include <stdint.h>
25#include <ola/io/OutputBuffer.h>
26
27namespace ola {
28namespace io {
29
34 class OutputStreamInterface {
35 public:
36 virtual ~OutputStreamInterface() {}
37
38 // Append some data to this OutputQueue
39 virtual void Write(const uint8_t *data, unsigned int length) = 0;
40
41 virtual OutputStreamInterface& operator<<(uint8_t) = 0;
42 virtual OutputStreamInterface& operator<<(uint16_t) = 0;
43 virtual OutputStreamInterface& operator<<(uint32_t) = 0;
44 virtual OutputStreamInterface& operator<<(int8_t) = 0;
45 virtual OutputStreamInterface& operator<<(int16_t) = 0;
46 virtual OutputStreamInterface& operator<<(int32_t) = 0;
47};
48
49
53 class OutputStream: public OutputStreamInterface {
54 public:
55 // Ownership of the OutputBuffer is not transferred.
56 explicit OutputStream(OutputBufferInterface *buffer)
57 : m_buffer(buffer) {
58 }
59 virtual ~OutputStream() {}
60
61 // Append some data directly to this OutputBuffer
62 void Write(const uint8_t *data, unsigned int length) {
63 m_buffer->Write(data, length);
64 }
65
66 OutputStream& operator<<(uint8_t val) { return Write(val); }
67 OutputStream& operator<<(uint16_t val) { return Write(val); }
68 OutputStream& operator<<(uint32_t val) { return Write(val); }
69 OutputStream& operator<<(int8_t val) { return Write(val); }
70 OutputStream& operator<<(int16_t val) { return Write(val); }
71 OutputStream& operator<<(int32_t val) { return Write(val); }
72
73 private:
74 OutputBufferInterface *m_buffer;
75
76 template<typename T>
77 OutputStream& Write(const T &val) {
78 m_buffer->Write(reinterpret_cast<const uint8_t*>(&val),
79 static_cast<unsigned int>(sizeof(val)));
80 return *this;
81 }
82
83 OutputStream(const OutputStream&);
84 OutputStream& operator=(const OutputStream&);
85};
86} // namespace io
87} // namespace ola
88#endif // INCLUDE_OLA_IO_OUTPUTSTREAM_H_
ola::io::OutputStreamInterface
Definition OutputStream.h:34
ola::io
Classes for general I/O and event handling.
Definition Descriptor.cpp:49
ola
The namespace containing all OLA symbols.
Definition Credentials.cpp:44