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https://github.com/alsa-project/alsa-utils
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amidi: add timestamp option for dump
Added -T / --timestamp option (with parameter "realtime", "monotonic" or "raw") which prints a timestamp before each received message when using the --dump mode. Fixes: https://github.com/alsa-project/alsa-utils/pull/108 Signed-off-by: Folkert van Heusden <mail@vanheusden.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
folkert van heusden
Jaroslav Kysela
parent
dea51861a8
commit
9a8fcec5aa
1 changed files with 47 additions and 9 deletions
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@ -36,11 +36,13 @@
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#include <unistd.h>
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#include <fcntl.h>
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#include <alsa/asoundlib.h>
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#include <time.h>
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#include "aconfig.h"
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#include "version.h"
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#define NSEC_PER_SEC 1000000000L
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static int do_print_timestamp = 0;
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static int do_device_list, do_rawmidi_list;
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static char *port_name = "default";
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static char *send_file_name;
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@ -80,6 +82,10 @@ static void usage(void)
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"-r, --receive=file write received data into a file\n"
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"-S, --send-hex=\"...\" send hexadecimal bytes\n"
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"-d, --dump print received data as hexadecimal bytes\n"
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"-T, --timestamp=... adds a timestamp in front of each dumped message\n"
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" realtime\n"
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" monotonic\n"
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" raw\n"
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"-t, --timeout=seconds exits when no data has been received\n"
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" for the specified duration\n"
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"-a, --active-sensing include active sensing bytes\n"
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@ -356,7 +362,7 @@ static void parse_data(void)
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/*
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* prints MIDI commands, formatting them nicely
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*/
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static void print_byte(unsigned char byte)
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static void print_byte(unsigned char byte, struct timespec *ts)
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{
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static enum {
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STATE_UNKNOWN,
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@ -426,7 +432,18 @@ static void print_byte(unsigned char byte)
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if (running_status)
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fputs("\n ", stdout);
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}
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printf("%c%02X", newline ? '\n' : ' ', byte);
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if (newline) {
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printf("\n");
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/* Nanoseconds does not make a lot of sense for serial MIDI (the
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* 31250 bps one) but I'm not sure about MIDI over USB.
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*/
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if (do_print_timestamp)
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printf("%lld.%.9ld) ", (long long)ts->tv_sec, ts->tv_nsec);
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}
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printf("%02X", byte);
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}
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static void sig_handler(int dummy)
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@ -454,7 +471,7 @@ static void add_send_hex_data(const char *str)
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int main(int argc, char *argv[])
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{
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static const char short_options[] = "hVlLp:s:r:S::dt:aci:";
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static const char short_options[] = "hVlLp:s:r:S::dt:aci:T:";
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static const struct option long_options[] = {
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{"help", 0, NULL, 'h'},
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{"version", 0, NULL, 'V'},
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@ -465,6 +482,7 @@ int main(int argc, char *argv[])
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{"receive", 1, NULL, 'r'},
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{"send-hex", 2, NULL, 'S'},
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{"dump", 0, NULL, 'd'},
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{"timestamp", 1, NULL, 'T'},
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{"timeout", 1, NULL, 't'},
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{"active-sensing", 0, NULL, 'a'},
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{"clock", 0, NULL, 'c'},
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@ -475,6 +493,7 @@ int main(int argc, char *argv[])
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int ignore_active_sensing = 1;
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int ignore_clock = 1;
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int do_send_hex = 0;
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clockid_t cid = CLOCK_REALTIME;
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struct itimerspec itimerspec = { .it_interval = { 0, 0 } };
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while ((c = getopt_long(argc, argv, short_options,
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@ -509,6 +528,19 @@ int main(int argc, char *argv[])
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case 'd':
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dump = 1;
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break;
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case 'T':
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do_print_timestamp = 1;
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if (optarg == NULL)
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error("Clock type missing");
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else if (strcasecmp(optarg, "realtime") == 0)
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cid = CLOCK_REALTIME;
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else if (strcasecmp(optarg, "monotonic") == 0)
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cid = CLOCK_MONOTONIC;
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else if (strcasecmp(optarg, "raw") == 0)
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cid = CLOCK_MONOTONIC_RAW;
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else
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error("Clock type not known");
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break;
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case 't':
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if (optarg)
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timeout = atof(optarg);
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@ -611,6 +643,7 @@ int main(int argc, char *argv[])
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}
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if (inputp) {
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int need_timestamp = 0;
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int read = 0;
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int npfds;
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struct pollfd *pfds;
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@ -644,10 +677,12 @@ int main(int argc, char *argv[])
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goto _exit;
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}
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}
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for (;;) {
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unsigned char buf[256];
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int i, length;
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unsigned short revents;
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struct timespec ts;
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err = poll(pfds, npfds, -1);
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if (stop || (err < 0 && errno == EINTR))
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@ -657,6 +692,11 @@ int main(int argc, char *argv[])
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break;
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}
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if (clock_gettime(cid, &ts) < 0) {
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error("clock_getres (%d) failed: %s", cid, strerror(errno));
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break;
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}
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err = snd_rawmidi_poll_descriptors_revents(input, &pfds[1], npfds - 1, &revents);
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if (err < 0) {
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error("cannot get poll events: %s", snd_strerror(errno));
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@ -688,14 +728,12 @@ int main(int argc, char *argv[])
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continue;
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read += length;
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if (receive_file != -1) {
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ssize_t wlength = write(receive_file, buf, length);
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if (wlength != length)
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error("write error: %s", wlength < 0 ? strerror(errno) : "short");
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}
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if (receive_file != -1)
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write(receive_file, buf, length);
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if (dump) {
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for (i = 0; i < length; ++i)
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print_byte(buf[i]);
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print_byte(buf[i], &ts);
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fflush(stdout);
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}
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