From 816eb840fd86000b12525ff28d128fe643a15a73 Mon Sep 17 00:00:00 2001
From: Jon Szymaniak <jon.szymaniak@gmail.com>
Date: Tue, 24 Mar 2015 11:52:45 -0400
Subject: analog: Wrapped squelch blocks' setter methods with lock
The setter methods of squelch_base and its children have been updated to
hold d_setlock to avoid races.
For example, updating the CTCSS frequency parameter requires
updates to three separate fft::goertzel objects, which are used during
the general_work().
---
gr-analog/lib/pwr_squelch_cc_impl.cc | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'gr-analog/lib/pwr_squelch_cc_impl.cc')
diff --git a/gr-analog/lib/pwr_squelch_cc_impl.cc b/gr-analog/lib/pwr_squelch_cc_impl.cc
index 1a414ed464..62b9cff5c6 100644
--- a/gr-analog/lib/pwr_squelch_cc_impl.cc
+++ b/gr-analog/lib/pwr_squelch_cc_impl.cc
@@ -69,5 +69,19 @@ namespace gr {
d_pwr = d_iir.filter(in.real()*in.real()+in.imag()*in.imag());
}
+ void
+ pwr_squelch_cc_impl::set_threshold(double db)
+ {
+ gr::thread::scoped_lock l(d_setlock);
+ d_threshold = std::pow(10.0, db/10);
+ }
+
+ void
+ pwr_squelch_cc_impl::set_alpha(double alpha)
+ {
+ gr::thread::scoped_lock l(d_setlock);
+ d_iir.set_taps(alpha);
+ }
+
} /* namespace analog */
} /* namespace gr */
--
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