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added optional getopt options to signal generator

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This commit is contained in:
Steffen Vogel 2016-02-07 03:17:45 +01:00
parent 106d230a24
commit 79aa626d50
2 changed files with 83 additions and 35 deletions
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96
src/signal.c
View file

@ -30,28 +30,38 @@ enum SIGNAL_TYPE {
TYPE_MIXED
};
void usage(char *name)
{
printf("Usage: %s SIGNAL [OPTIONS]\n", name);
printf(" SIGNAL is on of: 'mixed', 'random', 'sine', 'triangle', 'square', 'ramp'\n");
printf(" -v NUM specifies how many values a message should contain\n");
printf(" -r HZ how many messages per second\n");
printf(" -f HZ the frequency of the signal\n");
printf(" -a FLT the amplitude\n");
printf(" -d FLT the standard deviation for 'random' signals\n");
printf(" -l NUM only send LIMIT messages and stop\n\n");
print_copyright();
}
int main(int argc, char *argv[])
{
if (argc < 4 || argc > 5) {
printf("Usage: %s SIGNAL VALUES RATE [LIMIT]\n", argv[0]);
printf(" SIGNAL is on of: mixed random sine triangle square ramp\n");
printf(" VALUES is the number of values a message contains\n");
printf(" RATE how many messages per second\n");
printf(" LIMIT only send LIMIT messages\n\n");
/* Some default values */
double rate = 10;
double freq = 1;
double ampl = 1;
double stddev = 0.02;
int type = TYPE_MIXED;
int values = 1;
int limit = -1;
print_copyright();
int counter = 0;
if (argc < 2) {
usage(argv[0]);
exit(EXIT_FAILURE);
}
double rate = atof(argv[3]);
int type = TYPE_MIXED;
int values = atoi(argv[2]);
int limit = argc >= 5 ? atoi(argv[4]) : -1;
int counter = 0;
struct msg *m = msg_create(values);
/* Parse signal type */
if (!strcmp(argv[1], "random"))
type = TYPE_RANDOM;
@ -65,10 +75,47 @@ int main(int argc, char *argv[])
type = TYPE_RAMP;
else if (!strcmp(argv[1], "mixed"))
type = TYPE_MIXED;
/* Parse optional command line arguments */
char c, *endptr;
while ((c = getopt(argc-1, argv+1, "hv:r:f:l:a:d:")) != -1) {
switch (c) {
case 'l':
limit = strtoul(optarg, &endptr, 10);
goto check;
case 'v':
values = strtoul(optarg, &endptr, 10);
goto check;
case 'r':
rate = strtof(optarg, &endptr);
goto check;
case 'f':
freq = strtof(optarg, &endptr);
goto check;
case 'a':
ampl = strtof(optarg, &endptr);
goto check;
case 'd':
stddev = strtof(optarg, &endptr);
goto check;
case 'h':
case '?':
usage(argv[0]);
}
continue;
check: if (optarg == endptr)
error("Failed to parse parse option argument '-%c %s'", c, optarg);
}
/* Allocate memory for message buffer */
struct msg *m = msg_create(values);
/* Print header */
fprintf(stderr, "# %-20s\t\t%s\n", "sec.nsec(seq)", "data[]");
printf("# S2SS signal params: type=%s, values=%u, rate=%f, limit=%u, amplitude=%f, freq=%f\n",
argv[1], values, rate, limit, ampl, freq);
printf("# %-20s\t\t%s\n", "sec.nsec(seq)", "data[]");
/* Setup timer */
int tfd = timerfd_create_rate(rate);
@ -77,7 +124,7 @@ int main(int argc, char *argv[])
struct timespec start = time_now();
while (counter < limit || argc < 5) {
while (limit < 0 || counter < limit) {
struct timespec now = time_now();
double running = time_delta(&start, &now);
@ -86,16 +133,13 @@ int main(int argc, char *argv[])
m->sequence = counter;
for (int i = 0; i < m->values; i++) {
int rtype = (type != TYPE_MIXED) ? type : i % 4;
double ampl = i+1;
double freq = i+1;
int rtype = (type != TYPE_MIXED) ? type : i % 4;
switch (rtype) {
case TYPE_RANDOM: m->data[i].f += box_muller(0, 0.02); break;
case TYPE_SINE: m->data[i].f = ampl * sin(running * freq * M_PI); break;
case TYPE_RANDOM: m->data[i].f += box_muller(0, stddev); break;
case TYPE_SINE: m->data[i].f = ampl * sin(running * freq * 2 * M_PI); break;
case TYPE_TRIANGLE: m->data[i].f = ampl * (fabs(fmod(running * freq, 1) - .5) - 0.25) * 4; break;
case TYPE_SQUARE: m->data[i].f = ampl * ( (fmod(running * freq, 1) < .5) ? -1 : 1); break;
case TYPE_RAMP: m->data[i].f = counter; /** @todo send as integer? */ break;
case TYPE_RAMP: m->data[i].f = fmod(counter, rate / freq); /** @todo send as integer? */ break;
}
}

22
src/test.c
View file

@ -53,18 +53,22 @@ void quit()
running = 0;
}
void usage(char *name)
{
printf("Usage: %s CONFIG TEST NODE [ARGS]\n", name);
printf(" CONFIG path to a configuration file\n");
printf(" TEST the name of the test to execute: 'rtt'\n");
printf(" NODE name of the node which shoud be used\n\n");
print_copyright();
}
int main(int argc, char *argv[])
{
config_t config;
if (argc < 4) {
printf("Usage: %s CONFIG TEST NODE [ARGS]\n", argv[0]);
printf(" CONFIG path to a configuration file\n");
printf(" TEST the name of the test to execute: 'rtt'\n");
printf(" NODE name of the node which shoud be used\n\n");
print_copyright();
usage(argv[0]);
exit(EXIT_FAILURE);
}
@ -121,8 +125,8 @@ int main(int argc, char *argv[])
}
continue;
check:
if (optarg == endptr)
check: if (optarg == endptr)
error("Failed to parse parse option argument '-%c %s'", c, optarg);
}