/* -*- c++ -*- */
/*
* Copyright 2004,2007,2009,2010,2013,2017 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_GR_RUNTIME_BLOCK_H
#define INCLUDED_GR_RUNTIME_BLOCK_H
#include <memory>
#include <gnuradio/api.h>
#include <gnuradio/basic_block.h>
#include <gnuradio/buffer_type.h>
#include <gnuradio/config.h>
#include <gnuradio/logger.h>
#include <gnuradio/tags.h>
#ifdef GR_MPLIB_MPIR
#include <mpirxx.h>
#else
#include <gmpxx.h>
#endif
namespace gr {
/*!
* \brief The abstract base class for all 'terminal' processing blocks.
* \ingroup base_blk
*
* A signal processing flow is constructed by creating a tree of
* hierarchical blocks, which at any level may also contain terminal
* nodes that actually implement signal processing functions. This
* is the base class for all such leaf nodes.
*
* Blocks have a set of input streams and output streams. The
* input_signature and output_signature define the number of input
* streams and output streams respectively, and the type of the data
* items in each stream.
*
* Blocks report the number of items consumed on each input in
* general_work(), using consume() or consume_each().
*
* If the same number of items is produced on each output, the block
* returns that number from general_work(). Otherwise, the block
* calls produce() for each output, then returns
* WORK_CALLED_PRODUCE. The input and output rates are not required
* to be related.
*
* User derived blocks override two methods, forecast and
* general_work, to implement their signal processing
* behavior. forecast is called by the system scheduler to determine
* how many items are required on each input stream in order to
* produce a given number of output items.
*
* general_work is called to perform the signal processing in the
* block. It reads the input items and writes the output items.
*/
class GR_RUNTIME_API block : public basic_block
{
public:
//! Magic return values from general_work
enum work_return_t { WORK_CALLED_PRODUCE = -2, WORK_DONE = -1 };
/*!
* \brief enum to represent different tag propagation policies.
*/
enum tag_propagation_policy_t {
TPP_DONT = 0, /*!< Scheduler doesn't propagate tags from in- to output. The block
itself is free to insert tags as it wants. */
TPP_ALL_TO_ALL = 1, /*!< Propagate tags from all in- to all outputs. The scheduler
takes care of that. */
TPP_ONE_TO_ONE = 2, /*!< Propagate tags from n. input to n. output. Requires same
number of in- and outputs */
TPP_CUSTOM = 3 /*!< Like TPP_DONT, but signals the block it should implement
application-specific forwarding behaviour. */
};
~block() override;
/*!
* Assume block computes y_i = f(x_i, x_i-1, x_i-2, x_i-3...)
* History is the number of x_i's that are examined to produce one y_i.
* This comes in handy for FIR filters, where we use history to
* ensure that our input contains the appropriate "history" for the
* filter. History should be equal to the number of filter taps. First
* history samples (when there are no previous samples) are
* initialized with zeroes.
*/
unsigned history() const;
void set_history(unsigned history);
/*!
* Declares the block's delay in samples. Since the delay of
* blocks like filters is derived from the taps and not the block
* itself, we cannot automatically calculate this value and so
* leave it as a user-defined property. It defaults to 0 is not
* set.
*
* This does not actively set the delay; it just tells the
* scheduler what the delay is.
*
* This delay is mostly used to adjust the placement of the tags
* and is not currently used for any signal processing. When a tag
* is passed through a block with internal delay, its location
* should be moved based on the delay of the block. This interface
* allows us to tell the scheduler this value.
*
* \param which The buffer on which to set the delay.
* \param delay The sample delay of the data stream.
*/
void declare_sample_delay(int which, unsigned delay);
/*!
* Convenience wrapper to gr::block::declare_delay(int which, unsigned delay)
* to set all ports to the same delay.
*/
void declare_sample_delay(unsigned delay);
/*!
* Gets the delay of the block. Since the delay of blocks like
* filters is derived from the taps and not the block itself, we
* cannot automatically calculate this value and so leave it as a
* user-defined property. It defaults to 0 is not set.
*
* \param which Which port from which to get the sample delay.
*/
unsigned sample_delay(int which) const;
/*!
* \brief Return true if this block has a fixed input to output rate.
*
* If true, then fixed_rate_in_to_out and fixed_rate_out_to_in may be called.
*/
bool fixed_rate() const { return d_fixed_rate; }
// ----------------------------------------------------------------
// override these to define your behavior
// ----------------------------------------------------------------
/*!
* \brief Estimate input requirements given output request
*
* \param noutput_items number of output items to produce
* \param ninput_items_required number of input items required on each input stream
*
* Given a request to product \p noutput_items, estimate the
* number of data items required on each input stream. The
* estimate doesn't have to be exact, but should be close.
*/
virtual void forecast(int noutput_items, gr_vector_int& ninput_items_required);
/*!
* \brief compute output items from input items
*
* \param noutput_items number of output items to write on each output stream
* \param ninput_items number of input items available on each input stream
* \param input_items vector of pointers to the input items, one entry per input
* stream
* \param 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 WORK_CALLED_PRODUCE or WORK_DONE. It is OK to return a
* value less than noutput_items.
*
* WORK_CALLED_PRODUCE is used where not all outputs produce the
* same number of items. general_work must call produce() for each
* output to indicate the number of items actually produced.
*
* WORK_DONE indicates that no more data will be produced by this block.
*
* general_work must call consume or consume_each to indicate how
* many items were consumed on each input stream.
*/
virtual int general_work(int noutput_items,
gr_vector_int& ninput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items);
/*!
* \brief Called to enable drivers, etc for i/o devices.
*
* This allows a block to enable an associated driver to begin
* transferring data just before we start to execute the scheduler.
* The end result is that this reduces latency in the pipeline
* when dealing with audio devices, usrps, etc.
*/
virtual bool start();
/*!
* \brief Called to disable drivers, etc for i/o devices.
*/
virtual bool stop();
// ----------------------------------------------------------------
/*!
* \brief Constrain the noutput_items argument passed to forecast and general_work
*
* set_output_multiple causes the scheduler to ensure that the
* noutput_items argument passed to forecast and general_work will
* be an integer multiple of \param multiple The default value of
* output multiple is 1.
*/
void set_output_multiple(int multiple);
int output_multiple() const { return d_output_multiple; }
bool output_multiple_set() const { return d_output_multiple_set; }
/*!
* \brief Constrains buffers to work on a set item alignment (for SIMD)
*
* set_alignment_multiple causes the scheduler to ensure that the
* noutput_items argument passed to forecast and general_work will
* be an integer multiple of \param multiple The default value is
* 1.
*
* This control is similar to the output_multiple setting, except
* that if the number of items passed to the block is less than
* the output_multiple, this value is ignored and the block can
* produce like normal. The d_unaligned value is set to the number
* of items the block is off by. In the next call to general_work,
* the noutput_items is set to d_unaligned or less until
* d_unaligned==0. The buffers are now aligned again and the
* aligned calls can be performed again.
*/
void set_alignment(int multiple);
int alignment() const { return d_output_multiple; }
void set_unaligned(int na);
int unaligned() const { return d_unaligned; }
void set_is_unaligned(bool u);
bool is_unaligned() const { return d_is_unaligned; }
/*!
* \brief Tell the scheduler \p how_many_items of input stream \p
* which_input were consumed.
*
* This function should be used in general_work() to tell the scheduler the
* number of input items processed. Calling consume() multiple times in the
* same general_work() call is safe. Every invocation of consume() updates
* the values returned by nitems_read().
*/
void consume(int which_input, int how_many_items);
/*!
* \brief Tell the scheduler \p how_many_items were consumed on
* each input stream.
*
* Also see notes on consume().
*/
void consume_each(int how_many_items);
/*!
* \brief Tell the scheduler \p how_many_items were produced on
* output stream \p which_output.
*
* This function should be used in general_work() to tell the scheduler the
* number of output items produced. If produce() is called in
* general_work(), general_work() must return \p WORK_CALLED_PRODUCE.
* Calling produce() multiple times in the same general_work() call is safe.
* Every invocation of produce() updates the values returned by
* nitems_written().
*/
void produce(int which_output, int how_many_items);
/*!
* \brief Set the approximate output rate / input rate
*
* Provide a hint to the buffer allocator and scheduler.
* The default relative_rate is 1.0
*
* decimators have relative_rates < 1.0
* interpolators have relative_rates > 1.0
*/
void set_relative_rate(double relative_rate);
/*!
* \brief Set the approximate output rate / input rate
* using its reciprocal
*
* This is a convenience function to avoid
* numerical problems with tag propagation that calling
* set_relative_rate(1.0/relative_rate) might introduce.
*/
void set_inverse_relative_rate(double inverse_relative_rate);
/*!
* \brief Set the approximate output rate / input rate as an integer ratio
*
* Provide a hint to the buffer allocator and scheduler.
* The default relative_rate is interpolation / decimation = 1 / 1
*
* decimators have relative_rates < 1.0
* interpolators have relative_rates > 1.0
*/
void set_relative_rate(uint64_t interpolation, uint64_t decimation);
/*!
* \brief return the approximate output rate / input rate
*/
double relative_rate() const { return d_relative_rate; }
/*!
* \brief return the numerator, or interpolation rate, of the
* approximate output rate / input rate
*/
uint64_t relative_rate_i() const
{
return (uint64_t)d_mp_relative_rate.get_num().get_ui();
}
/*!
* \brief return the denominator, or decimation rate, of the
* approximate output rate / input rate
*/
uint64_t relative_rate_d() const
{
return (uint64_t)d_mp_relative_rate.get_den().get_ui();
}
/*!
* \brief return a reference to the multiple precision rational
* representation of the approximate output rate / input rate
*/
mpq_class& mp_relative_rate() { return d_mp_relative_rate; }
/*
* The following two methods provide special case info to the
* scheduler in the event that a block has a fixed input to output
* ratio. sync_block, sync_decimator and
* sync_interpolator override these. If you're fixed rate,
* subclass one of those.
*/
/*!
* \brief Given ninput samples, return number of output samples that will be produced.
* N.B. this is only defined if fixed_rate returns true.
* Generally speaking, you don't need to override this.
*/
virtual int fixed_rate_ninput_to_noutput(int ninput);
/*!
* \brief Given noutput samples, return number of input samples required to produce
* noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking,
* you don't need to override this.
*/
virtual int fixed_rate_noutput_to_ninput(int noutput);
/*!
* \brief Return the number of items read on input stream which_input
*/
uint64_t nitems_read(unsigned int which_input);
/*!
* \brief Return the number of items written on output stream which_output
*/
uint64_t nitems_written(unsigned int which_output);
/*!
* \brief Asks for the policy used by the scheduler to moved tags downstream.
*/
tag_propagation_policy_t tag_propagation_policy();
/*!
* \brief Set the policy by the scheduler to determine how tags are moved downstream.
*/
void set_tag_propagation_policy(tag_propagation_policy_t p);
/*!
* \brief Return the minimum number of output items this block can
* produce during a call to work.
*
* Should be 0 for most blocks. Useful if we're dealing with
* packets and the block produces one packet per call to work.
*/
int min_noutput_items() const { return d_min_noutput_items; }
/*!
* \brief Set the minimum number of output items this block can
* produce during a call to work.
*
* \param m the minimum noutput_items this block can produce.
*/
void set_min_noutput_items(int m) { d_min_noutput_items = m; }
/*!
* \brief Return the maximum number of output items this block will
* handle during a call to work.
*/
int max_noutput_items();
/*!
* \brief Set the maximum number of output items this block will
* handle during a call to work.
*
* \param m the maximum noutput_items this block will handle.
*/
void set_max_noutput_items(int m);
/*!
* \brief Clear the switch for using the max_noutput_items value of this block.
*
* When is_set_max_noutput_items() returns 'true', the scheduler
* will use the value returned by max_noutput_items() to limit the
* size of the number of items possible for this block's work
* function. If is_set_max_notput_items() returns 'false', then
* the scheduler ignores the internal value and uses the value set
* globally in the top_block.
*
* Use this value to clear the 'is_set' flag so the scheduler will
* ignore this. Use the set_max_noutput_items(m) call to both set
* a new value for max_noutput_items and to re-enable its use in
* the scheduler.
*/
void unset_max_noutput_items();
/*!
* \brief Ask the block if the flag is or is not set to use the
* internal value of max_noutput_items during a call to work.
*/
bool is_set_max_noutput_items();
/*
* Used to expand the vectors that hold the min/max buffer sizes.
*
* Specifically, when -1 is used, the vectors are just initialized
* with 1 value; this is used by the flat_flowgraph to expand when
* required to add a new value for new ports on these blocks.
*/
void expand_minmax_buffer(int port);
/*!
* \brief Returns max buffer size on output port \p i.
*/
long max_output_buffer(size_t i);
/*!
* \brief Request limit on max buffer size on all output ports.
*
* \details
* This is an advanced feature. Calling this can affect some
* fundamental assumptions about the system behavior and
* performance.
*
* The actual buffer size is determined by a number of other
* factors from the block and system. This function only provides
* a requested maximum. The buffers will always be a multiple of
* the system page size, which may be larger than the value asked
* for here.
*
* \param max_output_buffer the requested maximum output size in items.
*/
void set_max_output_buffer(long max_output_buffer);
/*!
* \brief Request limit on max buffer size on output port \p port.
*
* \details
* This is an advanced feature. Calling this can affect some
* fundamental assumptions about the system behavior and
* performance.
*
* The actual buffer size is determined by a number of other
* factors from the block and system. This function only provides
* a requested maximum. The buffers will always be a multiple of
* the system page size, which may be larger than the value asked
* for here.
*
* \param port the output port the request applies to.
* \param max_output_buffer the requested maximum output size in items.
*/
void set_max_output_buffer(int port, long max_output_buffer);
/*!
* \brief Returns min buffer size on output port \p i.
*/
long min_output_buffer(size_t i);
/*!
* \brief Request limit on the minimum buffer size on all output
* ports.
*
* \details
* This is an advanced feature. Calling this can affect some
* fundamental assumptions about the system behavior and
* performance.
*
* The actual buffer size is determined by a number of other
* factors from the block and system. This function only provides
* a requested minimum. The buffers will always be a multiple of
* the system page size, which may be larger than the value asked
* for here.
*
* \param min_output_buffer the requested minimum output size in items.
*/
void set_min_output_buffer(long min_output_buffer);
/*!
* \brief Request limit on min buffer size on output port \p port.
*
* \details
* This is an advanced feature. Calling this can affect some
* fundamental assumptions about the system behavior and
* performance.
*
* The actual buffer size is determined by a number of other
* factors from the block and system. This function only provides
* a requested minimum. The buffers will always be a multiple of
* the system page size, which may be larger than the value asked
* for here.
*
* \param port the output port the request applies to.
* \param min_output_buffer the requested minimum output size in items.
*/
void set_min_output_buffer(int port, long min_output_buffer);
/*!
* \brief DEPRECATED Configure the timer set when input is blocked \p port.
*
* \details
* This is an advanced/experimental feature and might be removed in a future
* version. Calling this can affect some fundamental assumptions about the
* system behavior and
* performance.
*
* In the TPB scheduler, when a block has no work to do because there
* is no data at it inputs, it sets a timer and tries again after a
* period of time. The default is 250 ms, but this can be configured
* differently per block when necessary
*
* \param timer_value_ms the timer value in milliseconds
*/
void set_blkd_input_timer_value(unsigned int timer_value_ms);
/*!
* \brief DEPRECATED Returns timer value set when input is blocked
*/
unsigned int blkd_input_timer_value();
/*!
* \brief Allocate the block_detail and necessary output buffers for this
* block.
*/
void allocate_detail(int ninputs,
int noutputs,
const std::vector<int>& downstream_max_nitems_vec,
const std::vector<uint64_t>& downstream_lcm_nitems_vec,
const std::vector<uint32_t>& downstream_max_out_mult_vec);
// --------------- Custom buffer-related functions -------------
/*!
* \brief Replace the block's buffer with a new one owned by the block_owner
* parameter
*
* \details
* This function is used to replace the buffer on the specified output port
* of the block with a new buffer that is "owned" by the specified block. This
* function will only be called if a downstream block is using a custom buffer
* that is incompatible with the default buffer type created by this block.
*
*/
buffer_sptr replace_buffer(size_t src_port, size_t dst_port, block_sptr block_owner);
// --------------- Performance counter functions -------------
/*!
* \brief Gets instantaneous noutput_items performance counter.
*/
float pc_noutput_items();
/*!
* \brief Gets average noutput_items performance counter.
*/
float pc_noutput_items_avg();
/*!
* \brief Gets variance of noutput_items performance counter.
*/
float pc_noutput_items_var();
/*!
* \brief Gets instantaneous num items produced performance counter.
*/
float pc_nproduced();
/*!
* \brief Gets average num items produced performance counter.
*/
float pc_nproduced_avg();
/*!
* \brief Gets variance of num items produced performance counter.
*/
float pc_nproduced_var();
/*!
* \brief Gets instantaneous fullness of \p which input buffer.
*/
float pc_input_buffers_full(int which);
/*!
* \brief Gets average fullness of \p which input buffer.
*/
float pc_input_buffers_full_avg(int which);
/*!
* \brief Gets variance of fullness of \p which input buffer.
*/
float pc_input_buffers_full_var(int which);
/*!
* \brief Gets instantaneous fullness of all input buffers.
*/
std::vector<float> pc_input_buffers_full();
/*!
* \brief Gets average fullness of all input buffers.
*/
std::vector<float> pc_input_buffers_full_avg();
/*!
* \brief Gets variance of fullness of all input buffers.
*/
std::vector<float> pc_input_buffers_full_var();
/*!
* \brief Gets instantaneous fullness of \p which output buffer.
*/
float pc_output_buffers_full(int which);
/*!
* \brief Gets average fullness of \p which output buffer.
*/
float pc_output_buffers_full_avg(int which);
/*!
* \brief Gets variance of fullness of \p which output buffer.
*/
float pc_output_buffers_full_var(int which);
/*!
* \brief Gets instantaneous fullness of all output buffers.
*/
std::vector<float> pc_output_buffers_full();
/*!
* \brief Gets average fullness of all output buffers.
*/
std::vector<float> pc_output_buffers_full_avg();
/*!
* \brief Gets variance of fullness of all output buffers.
*/
std::vector<float> pc_output_buffers_full_var();
/*!
* \brief Gets instantaneous clock cycles spent in work.
*/
float pc_work_time();
/*!
* \brief Gets average clock cycles spent in work.
*/
float pc_work_time_avg();
/*!
* \brief Gets average clock cycles spent in work.
*/
float pc_work_time_var();
/*!
* \brief Gets total clock cycles spent in work.
*/
float pc_work_time_total();
/*!
* \brief Gets average throughput.
*/
float pc_throughput_avg();
/*!
* \brief Resets the performance counters
*/
void reset_perf_counters();
/*!
* \brief Sets up export of perf. counters to ControlPort. Only
* called by the scheduler.
*/
void setup_pc_rpc();
/*!
* \brief Checks if this block is already exporting perf. counters
* to ControlPort.
*/
bool is_pc_rpc_set() const { return d_pc_rpc_set; }
/*!
* \brief If the block calls this in its constructor, it's
* perf. counters will not be exported.
*/
void no_pc_rpc() { d_pc_rpc_set = true; }
// ----------------------------------------------------------------------------
// Functions to handle thread affinity
/*!
* \brief Set the thread's affinity to processor core \p n.
*
* \param mask a vector of ints of the core numbers available to this block.
*/
void set_processor_affinity(const std::vector<int>& mask) override;
/*!
* \brief Remove processor affinity to a specific core.
*/
void unset_processor_affinity() override;
/*!
* \brief Get the current processor affinity.
*/
std::vector<int> processor_affinity() override { return d_affinity; }
/*!
* \brief Get the current thread priority in use
*/
int active_thread_priority();
/*!
* \brief Get the current thread priority stored
*/
int thread_priority();
/*!
* \brief Set the current thread priority
*/
int set_thread_priority(int priority);
bool update_rate() const;
// ----------------------------------------------------------------------------
/*!
* \brief the system message handler
*/
void system_handler(pmt::pmt_t msg);
/*!
* \brief Set the logger's output level.
*
* Sets the level of the logger. This takes a string that is
* translated to the standard levels and can be (case insensitive):
*
* \li off , notset
* \li debug
* \li info
* \li notice
* \li warn
* \li error
* \li crit
* \li alert
* \li fatal
* \li emerg
*/
void set_log_level(const std::string& level) override;
/*!
* \brief Get the logger's output level
*/
std::string log_level() override;
/*!
* \brief returns true when execution has completed due to a message connection
*/
bool finished();
private:
int d_output_multiple;
bool d_output_multiple_set;
int d_unaligned;
bool d_is_unaligned;
double d_relative_rate; // approx output_rate / input_rate
mpq_class d_mp_relative_rate;
block_detail_sptr d_detail; // implementation details
unsigned d_history;
unsigned d_attr_delay; // the block's sample delay
bool d_fixed_rate;
bool d_max_noutput_items_set; // if d_max_noutput_items is valid
int d_max_noutput_items; // value of max_noutput_items for this block
int d_min_noutput_items;
tag_propagation_policy_t
d_tag_propagation_policy; // policy for moving tags downstream
std::vector<int> d_affinity; // thread affinity proc. mask
int d_priority; // thread priority level
bool d_pc_rpc_set;
bool d_update_rate; // should sched update rel rate?
bool d_finished; // true if msg ports think we are finished
protected:
block(void) {} // allows pure virtual interface sub-classes
block(const std::string& name,
gr::io_signature::sptr input_signature,
gr::io_signature::sptr output_signature);
void set_fixed_rate(bool fixed_rate) { d_fixed_rate = fixed_rate; }
/*!
* \brief Adds a new tag onto the given output buffer.
*
* \param which_output an integer of which output stream to attach the tag
* \param abs_offset a uint64 number of the absolute item number
* assicated with the tag. Can get from nitems_written.
* \param key the tag key as a PMT symbol
* \param value any PMT holding any value for the given key
* \param srcid optional source ID specifier; defaults to PMT_F
*/
inline void add_item_tag(unsigned int which_output,
uint64_t abs_offset,
const pmt::pmt_t& key,
const pmt::pmt_t& value,
const pmt::pmt_t& srcid = pmt::PMT_F)
{
tag_t tag;
tag.offset = abs_offset;
tag.key = key;
tag.value = value;
tag.srcid = srcid;
this->add_item_tag(which_output, tag);
}
/*!
* \brief Adds a new tag onto the given output buffer.
*
* \param which_output an integer of which output stream to attach the tag
* \param tag the tag object to add
*/
void add_item_tag(unsigned int which_output, const tag_t& tag);
/*!
* \brief DEPRECATED. Will be removed in 3.8.
*
* \param which_input an integer of which input stream to remove the tag from
* \param abs_offset a uint64 number of the absolute item number
* assicated with the tag. Can get from nitems_written.
* \param key the tag key as a PMT symbol
* \param value any PMT holding any value for the given key
* \param srcid optional source ID specifier; defaults to PMT_F
*
* If no such tag is found, does nothing.
*/
inline void remove_item_tag(unsigned int which_input,
uint64_t abs_offset,
const pmt::pmt_t& key,
const pmt::pmt_t& value,
const pmt::pmt_t& srcid = pmt::PMT_F)
{
tag_t tag;
tag.offset = abs_offset;
tag.key = key;
tag.value = value;
tag.srcid = srcid;
this->remove_item_tag(which_input, tag);
}
/*!
* \brief DEPRECATED. Will be removed in 3.8.
*
* \param which_input an integer of which input stream to remove the tag from
* \param tag the tag object to remove
*/
void remove_item_tag(unsigned int which_input, const tag_t& tag);
/*!
* \brief Given a [start,end), returns a vector of all tags in the range.
*
* Range of counts is from start to end-1.
*
* Tags are tuples of:
* (item count, source id, key, value)
*
* \param v a vector reference to return tags into
* \param which_input an integer of which input stream to pull from
* \param abs_start a uint64 count of the start of the range of interest
* \param abs_end a uint64 count of the end of the range of interest
*/
void get_tags_in_range(std::vector<tag_t>& v,
unsigned int which_input,
uint64_t abs_start,
uint64_t abs_end);
/*!
* \brief Given a [start,end), returns a vector of all tags in the
* range with a given key.
*
* Range of counts is from start to end-1.
*
* Tags are tuples of:
* (item count, source id, key, value)
*
* \param v a vector reference to return tags into
* \param which_input an integer of which input stream to pull from
* \param abs_start a uint64 count of the start of the range of interest
* \param abs_end a uint64 count of the end of the range of interest
* \param key a PMT symbol key to filter only tags of this key
*/
void get_tags_in_range(std::vector<tag_t>& v,
unsigned int which_input,
uint64_t abs_start,
uint64_t abs_end,
const pmt::pmt_t& key);
/*!
* \brief Gets all tags within the relative window of the current call to work.
*
* \details
*
* This opperates much like get_tags_in_range but allows us to
* work within the current window of items. Item range is
* therefore within the possible range of 0 to
* ninput_items[whic_input].
*
* Range of items counts from \p rel_start to \p rel_end-1 within
* current window.
*
* Tags are tuples of:
* (item count, source id, key, value)
*
* \param v a vector reference to return tags into
* \param which_input an integer of which input stream to pull from
* \param rel_start a uint64 count of the start of the range of interest
* \param rel_end a uint64 count of the end of the range of interest
*/
void get_tags_in_window(std::vector<tag_t>& v,
unsigned int which_input,
uint64_t rel_start,
uint64_t rel_end);
/*!
* \brief Operates like gr::block::get_tags_in_window with the
* ability to only return tags with the specified \p key.
*
* \details
*
* \param v a vector reference to return tags into
* \param which_input an integer of which input stream to pull from
* \param rel_start a uint64 count of the start of the range of interest
* \param rel_end a uint64 count of the end of the range of interest
* \param key a PMT symbol key to filter only tags of this key
*/
void get_tags_in_window(std::vector<tag_t>& v,
unsigned int which_input,
uint64_t rel_start,
uint64_t rel_end,
const pmt::pmt_t& key);
void enable_update_rate(bool en);
/*!
* \brief Allocate a buffer for the given output port of this block. Note
* that the downstream max number of items must be passed in to this
* function for consideration.
*/
buffer_sptr allocate_buffer(size_t port,
int downstream_max_nitems,
uint64_t downstream_lcm_nitems,
uint32_t downstream_max_out_mult);
std::vector<long> d_max_output_buffer;
std::vector<long> d_min_output_buffer;
unsigned int d_blkd_input_timer_value = 250;
/*! Used by block's setters and work functions to make
* setting/resetting of parameters thread-safe.
*
* Used by calling gr::thread::scoped_lock l(d_setlock);
*/
gr::thread::mutex d_setlock;
// These are really only for internal use, but leaving them public avoids
// having to work up an ever-varying list of friend GR_RUNTIME_APIs
/*! PMT Symbol for "hey, we're done here"
*/
const pmt::pmt_t d_pmt_done;
/*! PMT Symbol of the system port, `pmt::mp("system")`
*/
const pmt::pmt_t d_system_port;
public:
block_detail_sptr detail() const { return d_detail; }
void set_detail(block_detail_sptr detail) { d_detail = detail; }
/*! \brief Tell msg neighbors we are finished
*/
void notify_msg_neighbors();
/*! \brief Make sure we don't think we are finished
*/
void clear_finished() { d_finished = false; }
std::string identifier() const;
};
typedef std::vector<block_sptr> block_vector_t;
typedef std::vector<block_sptr>::iterator block_viter_t;
inline block_sptr cast_to_block_sptr(basic_block_sptr p)
{
return std::dynamic_pointer_cast<block, basic_block>(p);
}
GR_RUNTIME_API std::ostream& operator<<(std::ostream& os, const block* m);
} /* namespace gr */
#endif /* INCLUDED_GR_RUNTIME_BLOCK_H */