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Added simple tx/rx statistics command (ctrl-t s)

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To display the total number of bytes transmitted/received simply perform the
'ctrl-t s' command sequence.

This feature can be useful when eg. trying to detect non-printable
characters.
This commit is contained in:
Martin Lund 2016-05-17 16:08:19 +02:00
parent 0687d7ff7b
commit a8103b8983
3 changed files with 17 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/include/tio/tty.h
View file

@ -22,9 +22,10 @@
#ifndef TTY_H
#define TTY_H
#define KEY_CTRL_T 0x14
#define KEY_Q 0x71
#define KEY_S 0x73
#define KEY_T 0x74
#define KEY_CTRL_T 0x14
void configure_stdout(void);
void restore_stdout(void);

13
src/tty.c
View file

@ -40,6 +40,7 @@
#include "tio/error.h"
static struct termios new_stdout, old_stdout, old_tio;
static long rx_total = 0, tx_total = 0;
static bool connected = false;
static bool tainted = false;
static int fd;
@ -244,6 +245,9 @@ int connect_tty(void)
/* Input from tty device ready */
if (read(fd, &input_char, 1) > 0)
{
/* Update receive statistics */
rx_total++;
/* Print received tty character to stdout */
putchar(input_char);
fflush(stdout);
@ -253,6 +257,7 @@ int connect_tty(void)
log_write(input_char);
tainted = true;
} else
{
/* Error reading - device is likely unplugged */
@ -289,6 +294,11 @@ int connect_tty(void)
/* Send ctrl-t key code upon ctrl-t t sequence */
output_char = KEY_CTRL_T;
break;
case KEY_S:
/* Show tx/rx statistics upon ctrl-t s sequence */
color_printf("[tio %s] Sent %ld bytes, received %ld bytes", current_time(), tx_total, rx_total);
forward = false;
break;
default:
/* Ignore unknown ctrl-t escaped keys */
forward = false;
@ -306,6 +316,9 @@ int connect_tty(void)
/* Write to log */
if (option.log)
log_write(output_char);
/* Update transmit statistics */
tx_total++;
}
/* Save previous key */