view rvinterf/lowlevel/tchhide.c @ 899:a1065c17429c

rvinterf: implement TCH hiding mode and -v option for verbose
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 12 Dec 2022 22:15:25 +0000
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/*
 * One of several FreeCalypso extensions to RVTMUX is TCH bit access
 * logical channel, and we would like to handle it specially in rvinterf
 * because it's extremely chatty, sending a frame every 20 ms.  If we
 * were to output every TCH frame in our regular log, that log output
 * becomes useless as everything else is drowned out.  Therefore, we
 * implement a hiding mode by default: we only count how many TCH packets
 * were exchanged in between other messages of interest, and report these
 * counts.
 */

#include <stdio.h>

extern void (*output_hook)();

unsigned tch_rx_count, tch_tx_count;

static void
tch_report_hook()
{
	char msgbuf[80];

	output_hook = 0;
	if (tch_rx_count) {
		sprintf(msgbuf, "TCH: received %u packet%s", tch_rx_count,
			tch_rx_count != 1 ? "s" : "");
		output_line(msgbuf);
		tch_rx_count = 0;
	}
	if (tch_tx_count) {
		sprintf(msgbuf, "TCH: sent %u packet%s", tch_tx_count,
			tch_tx_count != 1 ? "s" : "");
		output_line(msgbuf);
		tch_tx_count = 0;
	}
}

void
tch_inc_count_rx()
{
	tch_rx_count++;
	output_hook = tch_report_hook;
}

void
tch_inc_count_tx()
{
	tch_tx_count++;
	output_hook = tch_report_hook;
}