stdex::base64_reader Class Reference

Converts from Base64 when reading from a stream. More...

#include <stdex/base64.hpp>

Inheritance diagram for stdex::base64_reader:

Public Member Functions
	base64_reader (stdex::stream::basic &source)
virtual size_t	read (_Out_writes_bytes_to_opt_(length, return) void *data, size_t length)
	Reads block of data from the stream.
Public Member Functions inherited from stdex::stream::converter
	converter (basic &source)
virtual size_t	write (_In_reads_bytes_opt_(length) const void *data, size_t length)
	Writes block of data to the stream.
virtual void	close ()
	Closes the stream.
virtual void	flush ()
	Persists volatile element data.
Public Member Functions inherited from stdex::stream::basic
	basic (state_t state=state_t::ok)
virtual void	skip (fsize_t amount)
	Skips given amount of bytes of data on the stream.
state_t	state () const
	Returns stream state after last operation.
bool	ok () const
	Returns true if the stream state is clean i.e. previous operation was successful.
virtual std::vector< uint8_t >	read_remainder (size_t max_length=SIZE_MAX)
	Reads and returns remainder of the stream.
uint8_t	read_byte ()
	Reads one byte of data.
void	write_byte (uint8_t byte, fsize_t amount=1)
	Writes a byte of data.
template<class T >
basic &	read_data (T &data)
	Reads one primitive data type.
template<class T >
basic &	write_data (const T data)
	Writes one primitive data type.
template<class T , class TR = std::char_traits<T>, class AX = std::allocator<T>>
size_t	readln (std::basic_string< T, TR, AX > &str)
	Reads stream to the end-of-line or end-of-file.
template<class T_from , class T_to , class TR = std::char_traits<T_to>, class AX = std::allocator<T_to>>
size_t	readln (std::basic_string< T_to, TR, AX > &str, charset_encoder< T_from, T_to > &encoder)
	Reads stream to the end-of-line or end-of-file.
template<class T , class TR = std::char_traits<T>, class AX = std::allocator<T>>
size_t	readln_and_attach (std::basic_string< T, TR, AX > &str)
	Reads stream to the end-of-line or end-of-file and append to str.
template<class T_from , class T_to , class TR = std::char_traits<T_to>, class AX = std::allocator<T_to>>
size_t	readln_and_attach (std::basic_string< T_to, TR, AX > &str, charset_encoder< T_from, T_to > &encoder)
	Reads stream to the end-of-line or end-of-file and append to str.
size_t	read_array (_Out_writes_bytes_(size *count) void *array, size_t size, size_t count)
	Reads an array of data from the stream.
size_t	write_array (_In_reads_bytes_opt_(size *count) const void *array, size_t size, size_t count)
	Writes an array of data to the stream.
template<class T_from , class T_to >
size_t	write_array (const T_from *str, charset_encoder< T_from, T_to > &encoder)
	Writes array of characters to the stream.
template<class T_from , class T_to >
size_t	write_array (_In_reads_or_z_opt_(num_chars) const T_from *str, size_t num_chars, charset_encoder< T_from, T_to > &encoder)
	Writes array of characters to the stream.
template<class T_from , class T_to , class TR = std::char_traits<T_from>, class AX = std::allocator<T_from>>
size_t	write_array (const std::basic_string< T_from, TR, AX > &str, charset_encoder< T_from, T_to > &encoder)
	Writes array of characters to the stream.
template<class T , class TR = std::char_traits<T>, class AX = std::allocator<T>>
basic &	read_str (std::basic_string< T, TR, AX > &data)
	Reads length-prefixed string from the stream.
template<class T >
basic &	write_str (const T *data)
	Writes string to the stream length-prefixed.
template<class T , class TR = std::char_traits<T>, class AX = std::allocator<T>>
basic &	write_str (const std::basic_string< T, TR, AX > &data)
	Writes string to the stream length-prefixed.
fsize_t	write_stream (basic &stream, fsize_t amount=fsize_max)
	Writes content of another stream.
void	write_charset (charset_id charset)
	Writes UTF8, UTF-16 or UTF-32 byte-order-mark.
size_t	write_sprintf (_Printf_format_string_params_(2) const char *format, locale_t locale,...)
	Writes formatted string to the stream.
size_t	write_sprintf (_Printf_format_string_params_(2) const wchar_t *format, locale_t locale,...)
	Writes formatted string to the stream.
size_t	write_vsprintf (_Printf_format_string_params_(2) const char *format, locale_t locale, va_list params)
	Writes formatted string to the stream.
size_t	write_vsprintf (_Printf_format_string_params_(2) const wchar_t *format, locale_t locale, va_list params)
	Writes formatted string to the stream.
basic &	operator>> (int8_t &data)
basic &	operator<< (const int8_t data)
basic &	operator>> (int16_t &data)
basic &	operator<< (const int16_t data)
basic &	operator>> (int32_t &data)
basic &	operator<< (const int32_t data)
basic &	operator>> (int64_t &data)
basic &	operator<< (const int64_t data)
basic &	operator>> (uint8_t &data)
basic &	operator<< (const uint8_t data)
basic &	operator>> (uint16_t &data)
basic &	operator<< (const uint16_t data)
basic &	operator>> (uint32_t &data)
basic &	operator<< (const uint32_t data)
basic &	operator>> (uint64_t &data)
basic &	operator<< (const uint64_t data)
basic &	operator>> (float &data)
basic &	operator<< (const float data)
basic &	operator>> (double &data)
basic &	operator<< (const double data)
basic &	operator>> (char &data)
basic &	operator<< (const char data)
template<class T , class TR = std::char_traits<T>, class AX = std::allocator<T>>
basic &	operator>> (std::basic_string< T, TR, AX > &data)
template<class T >
basic &	operator<< (const T *data)
template<class T , class TR = std::char_traits<T>, class AX = std::allocator<T>>
basic &	operator<< (const std::basic_string< T, TR, AX > &data)
template<class T , class AX = std::allocator<T>>
basic &	operator<< (const std::vector< T, AX > &data)
template<class T , class AX = std::allocator<T>>
basic &	operator>> (std::vector< T, AX > &data)
template<class KEY , class PR = std::less<KEY>, class AX = std::allocator<KEY>>
basic &	operator<< (const std::set< KEY, PR, AX > &data)
template<class KEY , class PR = std::less<KEY>, class AX = std::allocator<KEY>>
basic &	operator>> (std::set< KEY, PR, AX > &data)
template<class KEY , class PR = std::less<KEY>, class AX = std::allocator<KEY>>
basic &	operator<< (const std::multiset< KEY, PR, AX > &data)
template<class KEY , class PR = std::less<KEY>, class AX = std::allocator<KEY>>
basic &	operator>> (std::multiset< KEY, PR, AX > &data)

Protected Member Functions
void	decode ()
	Decodes one complete internal buffer of data.
Protected Member Functions inherited from stdex::base64_dec
template<class T , class AX >
size_t	decode (std::vector< T, AX > &out)
	Decodes one complete internal buffer of data.
	base64_dec () noexcept
	Constructs blank decoding session.
template<class T_to , class AX , class T_from >
void	decode (std::vector< T_to, AX > &out, bool &is_last, const T_from *data, size_t size)
	Decodes one block of information, and appends it to the output.
void	clear () noexcept
	Resets decoding session.
size_t	dec_size (size_t size) const noexcept
	Returns maximum decoded size.

Protected Attributes
char	m_temp [3]
	Temporary buffer.
size_t	m_temp_off
	Index of data start in m_temp
size_t	m_temp_len
	Number of bytes of data in m_temp
Protected Attributes inherited from stdex::stream::converter
basic *	m_source
Protected Attributes inherited from stdex::stream::basic
state_t	m_state
Protected Attributes inherited from stdex::base64_dec
uint8_t	m_buf [4]
	Internal buffer.
size_t	m_num
	Number of bytes used in m_buf

Detailed Description

Converts from Base64 when reading from a stream.

Member Function Documentation

read()

virtual size_t stdex::base64_reader::read ( _Out_writes_bytes_to_opt_(length, return) void * data, size_t length )

inlinevirtual

Reads block of data from the stream.

Parameters

[out]	data	Buffer to store read data
[in]	length	Byte limit of data to read

Returns

Number of bytes successfully read. On EOF, 0 is returned and stream state is set to state_t::eof. On error, 0 is returned and stream state is set to state_t::fail. On null reads (length == 0), 0 is returned and stream state is set to state_t::ok.

Reimplemented from stdex::stream::converter.

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The documentation for this class was generated from the following file:

• include/stdex/base64.hpp