/usr/include/ola/io/InputStream.h is in libola-dev 0.10.5.nojsmin-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* InputStream.h
* A interface & class to extract formatted data.
* Copyright (C) 2012 Simon Newton
*/
#ifndef INCLUDE_OLA_IO_INPUTSTREAM_H_
#define INCLUDE_OLA_IO_INPUTSTREAM_H_
#include <stdint.h>
#include <ola/io/InputBuffer.h>
#include <string>
namespace ola {
namespace io {
/**
* InputStreamInterface. Similar to istream.
*/
class InputStreamInterface {
public:
virtual ~InputStreamInterface() {}
/*
* Extract data from the Stream.
* Returns false if there was insufficient data to extract.
*/
virtual bool operator>>(int8_t &val) = 0;
virtual bool operator>>(uint8_t &val) = 0;
virtual bool operator>>(int16_t &val) = 0;
virtual bool operator>>(uint16_t &val) = 0;
virtual bool operator>>(int32_t &val) = 0;
virtual bool operator>>(uint32_t &val) = 0;
/*
* Append up to size bytes of data to the string.
* @returns the number of bytes read
*/
virtual unsigned int ReadString(std::string *output, unsigned int size) = 0;
};
/**
* InputStream.
* Extract formatted data from a InputBuffer.
*/
class InputStream: public InputStreamInterface {
public:
// Ownership of the InputBuffer is not transferred.
explicit InputStream(InputBufferInterface *buffer)
: m_buffer(buffer) {
}
virtual ~InputStream() {}
bool operator>>(int8_t &val) { return Extract(&val); }
bool operator>>(uint8_t &val) { return Extract(&val); }
bool operator>>(int16_t &val) { return Extract(&val); }
bool operator>>(uint16_t &val) { return Extract(&val); }
bool operator>>(int32_t &val) { return Extract(&val); }
bool operator>>(uint32_t &val) { return Extract(&val); }
unsigned int ReadString(std::string *output, unsigned int size) {
return m_buffer->Read(output, size);
}
private:
InputBufferInterface *m_buffer;
template <typename T>
bool Extract(T *val) {
unsigned int length = m_buffer->Read(reinterpret_cast<uint8_t*>(val),
sizeof(*val));
return length == sizeof(*val);
}
InputStream(const InputStream&);
InputStream& operator=(const InputStream&);
};
} // namespace io
} // namespace ola
#endif // INCLUDE_OLA_IO_INPUTSTREAM_H_
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