gr_skiphead Class Reference

skips the first N items, from then on copies items to the outputUseful for building test cases and sources which have metadata or junk at the start More...

#include <gr_skiphead.h>

Inheritance diagram for gr_skiphead:

List of all members.

Public Member Functions
int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	compute output items from input items
Friends
GR_CORE_API gr_skiphead_sptr	gr_make_skiphead (size_t itemsize, uint64_t nitems_to_skip)

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Detailed Description

skips the first N items, from then on copies items to the output

Useful for building test cases and sources which have metadata or junk at the start

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Member Function Documentation

int gr_skiphead::general_work	(	int	noutput_items,
		gr_vector_int &	ninput_items,
		gr_vector_const_void_star &	input_items,
		gr_vector_void_star &	output_items
	)		[virtual]

compute output items from input items

Parameters:

noutput_items	number of output items to write on each output stream
ninput_items	number of input items available on each input stream
input_items	vector of pointers to the input items, one entry per input stream
output_items	vector of pointers to the output items, one entry per output stream

Returns:

number of items actually written to each output stream, or -1 on EOF. It is OK to return a value less than noutput_items. -1 <= return value <= noutput_items

general_work must call consume or consume_each to indicate how many items were consumed on each input stream.

Implements gr_block.

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Friends And Related Function Documentation

GR_CORE_API gr_skiphead_sptr gr_make_skiphead	(	size_t	itemsize,
		uint64_t	nitems_to_skip
	)		[friend]

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

• gr_skiphead.h