stream::basic_runs_creator< Input_, Cmp_, BlockSize_, AllocStr_ > Class Template Reference

Forms sorted runs of data from a stream. More...

#include <sort_stream.h>

Inheritance diagram for stream::basic_runs_creator< Input_, Cmp_, BlockSize_, AllocStr_ >:

Collaboration diagram for stream::basic_runs_creator< Input_, Cmp_, BlockSize_, AllocStr_ >:

List of all members.

Public Types
typedef Cmp_	cmp_type
typedef Input_::value_type	value_type
typedef typed_block < BlockSize_, value_type >	block_type
typedef sort_helper::trigger_entry < block_type >	trigger_entry_type
typedef sorted_runs < trigger_entry_type >	sorted_runs_type
Public Member Functions
	basic_runs_creator (Input_ &i, Cmp_ c, unsigned_type memory_to_use)
	Create the object.
const sorted_runs_type &	result ()
	Returns the sorted runs object.
Protected Attributes
Input_ &	input
Cmp_	cmp

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Detailed Description

template<class Input_, class Cmp_, unsigned BlockSize_ = STXXL_DEFAULT_BLOCK_SIZE(typename Input_::value_type), class AllocStr_ = STXXL_DEFAULT_ALLOC_STRATEGY>
class stream::basic_runs_creator< Input_, Cmp_, BlockSize_, AllocStr_ >

Forms sorted runs of data from a stream.

Template Parameters:

Input_	type of the input stream
Cmp_	type of comparison object used for sorting the runs
BlockSize_	size of blocks used to store the runs (in bytes)
AllocStr_	functor that defines allocation strategy for the runs

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Constructor & Destructor Documentation

template<class Input_ , class Cmp_ , unsigned BlockSize_ = STXXL_DEFAULT_BLOCK_SIZE(typename Input_::value_type), class AllocStr_ = STXXL_DEFAULT_ALLOC_STRATEGY>

stream::basic_runs_creator< Input_, Cmp_, BlockSize_, AllocStr_ >::basic_runs_creator	(	Input_ &	i,
		Cmp_	c,
		unsigned_type	memory_to_use
	)		[inline]

Create the object.

Parameters:

i	input stream
c	comparator object
memory_to_use	memory amount that is allowed to used by the sorter in bytes

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Member Function Documentation

template<class Input_ , class Cmp_ , unsigned BlockSize_ = STXXL_DEFAULT_BLOCK_SIZE(typename Input_::value_type), class AllocStr_ = STXXL_DEFAULT_ALLOC_STRATEGY>

const sorted_runs_type& stream::basic_runs_creator< Input_, Cmp_, BlockSize_, AllocStr_ >::result

(

)

[inline]

Returns the sorted runs object.

Returns:

Sorted runs object. The result is computed lazily, i.e. on the first call

Remarks:

Returned object is intended to be used by runs_merger object as input

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

• sort_stream.h