data structure that gets new lines for many threads More...

Public Member Functions
	mapped_file (char const *file, size_t file_size, unsigned chunk_index, unsigned chunk_cnt)
	Initializes mmaped file with the specific chunk - so that every thread could use different part of the file. More...

	mapped_file (char const *file, size_t file_size)
	Initializes mmaped file. More...

std::string	get_line ()
	Gets line from the m_current file. Eof and End Of Chunk aren't checked here. More...

bool	eof () const
	is m_currently at the end of file

bool	end_of_chunk () const
	is m_currently at the end of requested part of the file

template<typename Functor >
void	for_each_line (Functor f)
	Computes functor on every line of the file. It takes care of the chunks and end of file. More...

Detailed Description

data structure that gets new lines for many threads

Definition at line 43 of file mapped_file.hpp.

Constructor & Destructor Documentation

paal::data_structures::mapped_file::mapped_file	(	char const *	file,
		size_t	file_size,
		unsigned	chunk_index,
		unsigned	chunk_cnt
	)

inline

Initializes mmaped file with the specific chunk - so that every thread could use different part of the file.

Parameters

file	mmap file pointer
file_size	size of the mmaped file
chunk_index	m_current chunk index
chunk_cnt	number of the chunks (usually equal the number of the threads)

Definition at line 62 of file mapped_file.hpp.

paal::data_structures::mapped_file::mapped_file	(	char const *	file,
		size_t	file_size
	)

inline

Initializes mmaped file.

Parameters

file	- mmap file pointer
file_size	- size of the mmaped file

Definition at line 79 of file mapped_file.hpp.

template<typename Functor >

void paal::data_structures::mapped_file::for_each_line ( Functor f )

inline

Computes functor on every line of the file. It takes care of the chunks and end of file.

Template Parameters

Functor

Parameters

f	- Functor that should be computed

Definition at line 121 of file mapped_file.hpp.

std::string paal::data_structures::mapped_file::get_line ( )

inline

Gets line from the m_current file. Eof and End Of Chunk aren't checked here.

Definition at line 91 of file mapped_file.hpp.

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