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add tx delay to packet pad

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This commit is contained in:
Bastian Bloessl
2013-12-06 12:53:11 +01:00
parent 5870cae968
commit 9c36b42e85
5 changed files with 54 additions and 9 deletions
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lib/packet_pad_impl.cc
+23 -4
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@@ -18,19 +18,24 @@
#include <gnuradio/io_signature.h>
#include <iostream>
#include <sys/time.h>
#include <uhd/types/time_spec.hpp>
using namespace gr::foo;
#define dout d_debug && std::cout
packet_pad_impl::packet_pad_impl(bool debug, unsigned int pad_front, unsigned int pad_tail) : block("packet_pad",
packet_pad_impl::packet_pad_impl(bool debug, bool delay, double delay_sec,
unsigned int pad_front, unsigned int pad_tail) : block("packet_pad",
gr::io_signature::make(1, 1, sizeof(gr_complex)),
gr::io_signature::make(1, 1, sizeof(gr_complex))),
d_debug(debug),
d_pad_front(pad_front),
d_pad_tail(pad_tail),
d_pad(0),
d_eob(false) {
d_eob(false),
d_delay(delay),
d_delay_sec(delay_sec) {
set_relative_rate(1);
set_tag_propagation_policy(block::TPP_DONT);
@@ -47,6 +52,20 @@ packet_pad_impl::add_sob(uint64_t item) {
static const pmt::pmt_t value = pmt::PMT_T;
static const pmt::pmt_t srcid = pmt::string_to_symbol(alias());
add_item_tag(0, item, sob_key, value, srcid);
if(d_delay) {
static const pmt::pmt_t time_key = pmt::string_to_symbol("tx_time");
struct timeval t;
gettimeofday(&t, NULL);
uhd::time_spec_t now = uhd::time_spec_t(t.tv_sec + t.tv_usec / 1000000.0)
+ uhd::time_spec_t(d_delay_sec);
const pmt::pmt_t time_value = pmt::make_tuple(
pmt::from_uint64(now.get_full_secs()),
pmt::from_double(now.get_frac_secs())
);
add_item_tag(0, item, time_key, time_value, srcid);
}
}
void
@@ -159,6 +178,6 @@ packet_pad_impl::forecast (int noutput_items, gr_vector_int &ninput_items_requir
}
packet_pad::sptr
packet_pad::make(bool debug, unsigned int pad_front, unsigned int pad_tail) {
return gnuradio::get_initial_sptr(new packet_pad_impl(debug, pad_front, pad_tail));
packet_pad::make(bool debug, bool delay, double delay_sec, unsigned int pad_front, unsigned int pad_tail) {
return gnuradio::get_initial_sptr(new packet_pad_impl(debug, delay, delay_sec, pad_front, pad_tail));
}