#include <packet_headergenerator_bb_impl.h>
Public Member Functions | |
| packet_headergenerator_bb_impl (const packet_header_default::sptr &header_formatter, const std::string &len_tag_key) | |
| ~packet_headergenerator_bb_impl () | |
| void | remove_length_tags (const std::vector< std::vector< gr_tag_t > > &tags) |
| int | calculate_output_stream_length (const gr_vector_int &ninput_items) |
| Calculate the number of output items. More... | |
| int | work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) |
| Just like gr_block::general_work, but makes sure the input is valid. More... | |
Additional Inherited Members | |
 Public Types inherited from gr::digital::packet_headergenerator_bb | |
| typedef boost::shared_ptr < packet_headergenerator_bb > | sptr |
| Static Public Member Functions inherited from gr::digital::packet_headergenerator_bb | |
| static sptr | make (const packet_header_default::sptr &header_formatter, const std::string &len_tag_key="packet_len") |
| static sptr | make (long header_len, const std::string &len_tag_key="packet_len") |
| Protected Types inherited from gr_basic_block | |
| enum | vcolor { WHITE, GREY, BLACK } |
| Protected Member Functions inherited from gr_tagged_stream_block | |
| gr_tagged_stream_block (void) | |
| gr_tagged_stream_block (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature, const std::string &length_tag_key) | |
| virtual void | parse_length_tags (const std::vector< std::vector< gr_tag_t > > &tags, gr_vector_int &n_input_items_reqd) |
| Parse all tags on the first sample of a PDU, return the number of items per input and prune the length tags. More... | |
| virtual void | update_length_tags (int n_produced, int n_ports) |
| Set the new length tags on the output stream. More... | |
| Protected Attributes inherited from gr_tagged_stream_block | |
| std::string | d_length_tag_key_str |
Constructor & Destructor Documentation
| gr::digital::packet_headergenerator_bb_impl::packet_headergenerator_bb_impl | ( | const packet_header_default::sptr & | header_formatter, |
| const std::string & | len_tag_key | ||
| ) |
| gr::digital::packet_headergenerator_bb_impl::~packet_headergenerator_bb_impl | ( | ) |
Member Function Documentation
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inlinevirtual |
Calculate the number of output items.
This is basically the inverse function to forecast(): Given a number of input items, it returns the maximum number of output items.
You most likely need to override this function, unless your block is a sync block or integer interpolator/decimator.
Reimplemented from gr_tagged_stream_block.
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inline |
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virtual |
Just like gr_block::general_work, but makes sure the input is valid.
The user must override work to define the signal processing code. Check the documentation for general_work() to see what happens here.
Like gr_sync_block, this calls consume() for you (it consumes ninput_items[i] items from the i-th port).
A note on tag propagation: The PDU length tags are handled by other functions, but all other tags are handled just as in any other gr_block. So, most likely, you either set the tag propagation policy to TPP_DONT and handle the tag propagation manually, or you propagate tags through the scheduler and don't do anything here.
- Parameters
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noutput_items The size of the writable output buffer ninput_items The exact size of the items on every input for this particular PDU. These will be consumed if a length tag key is provided! input_items See gr_block output_items See gr_block
Implements gr_tagged_stream_block.
The documentation for this class was generated from the following file:
