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signal: use pools

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This commit is contained in:
Steffen Vogel 2017-09-03 10:52:00 +02:00
parent 44c4e9d52f
commit 602a8f51eb
2 changed files with 21 additions and 14 deletions
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12
lib/nodes/signal.c
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@ -99,7 +99,6 @@ int signal_parse(struct node *n, json_t *cfg)
int signal_parse_cli(struct node *n, int argc, char *argv[])
{
int ret;
char *type;
struct signal *s = n->_vd;
@ -158,11 +157,12 @@ check: if (optarg == endptr)
type = argv[optind];
ret = signal_lookup_type(type);
if (ret == -1)
s->type = signal_lookup_type(type);
if (s->type == -1)
error("Invalid signal type: %s", type);
s->type = ret;
/* We know the expected number of values. */
n->samplelen = s->values;
return 0;
}
@ -240,13 +240,13 @@ int signal_read(struct node *n, struct sample *smps[], unsigned cnt)
t->length = n->samplelen;
for (int i = 0; i < MIN(s->values, t->capacity); i++) {
int rtype = (s->type != SIGNAL_TYPE_MIXED) ? s->type : i % 5;
int rtype = (s->type != SIGNAL_TYPE_MIXED) ? s->type : i % 7;
switch (rtype) {
case SIGNAL_TYPE_CONSTANT: t->data[i].f = s->offset + s->amplitude; break;
case SIGNAL_TYPE_SINE: t->data[i].f = s->offset + s->amplitude * sin(running * s->frequency * 2 * M_PI); break;
case SIGNAL_TYPE_TRIANGLE: t->data[i].f = s->offset + s->amplitude * (fabs(fmod(running * s->frequency, 1) - .5) - 0.25) * 4; break;
case SIGNAL_TYPE_SQUARE: t->data[i].f = s->offset + s->amplitude * ( (fmod(running * s->frequency, 1) < .5) ? -1 : 1); break;
case SIGNAL_TYPE_RAMP: t->data[i].f = s->offset + s->amplitude * fmod(running, s->frequency); break;
case SIGNAL_TYPE_RAMP: t->data[i].f = s->offset + s->amplitude * fmod(running, s->frequency); break;
case SIGNAL_TYPE_COUNTER: t->data[i].f = s->offset + s->amplitude * s->counter; break;
case SIGNAL_TYPE_RANDOM:
s->last[i] += box_muller(0, s->stddev);

23
src/signal.c
View file

@ -33,6 +33,7 @@
#include <villas/io/villas.h>
#include <villas/timing.h>
#include <villas/node.h>
#include <villas/pool.h>
#include <villas/plugin.h>
#include <villas/nodes/signal.h>
@ -40,6 +41,7 @@
struct node n;
struct log l;
struct io io;
struct pool q;
struct sample *t;
@ -53,6 +55,8 @@ void usage()
printf(" triangle\n");
printf(" square\n");
printf(" ramp\n");
printf(" constants\n");
printf(" counter\n");
printf("\n");
printf(" OPTIONS is one or more of the following options:\n");
printf(" -d LVL set debug level\n");
@ -89,12 +93,14 @@ static void quit(int signal, siginfo_t *sinfo, void *ctx)
if (ret)
error("Failed to destroy output");
ret = pool_destroy(&q);
if (ret)
error("Failed to destroy pool");
ret = log_stop(&l);
if (ret)
error("Failed to stop log");
free(t);
info(CLR_GRN("Goodbye!"));
exit(EXIT_SUCCESS);
}
@ -146,20 +152,21 @@ int main(int argc, char *argv[])
if (ret)
error("Failed to verify node configuration");
/* Allocate memory for message buffer */
struct signal *s = n._vd;
t = alloc(SAMPLE_LEN(s->values));
t->capacity = s->values;
ret = pool_init(&q, 1, SAMPLE_LEN(n.samplelen), &memtype_heap);
if (ret)
error("Failed to initialize pool");
ret = node_start(&n);
if (ret)
serror("Failed to start node");
for (;;) {
sample_alloc(&q, &t, 1);
node_read(&n, &t, 1);
io_print(&io, &t, 1);
sample_put(t);
}
return 0;