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added option to use shift hook also for sequence numbers

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This commit is contained in:
Steffen Vogel 2017-03-14 11:14:02 -03:00
parent 1a323d1fcd
commit 3af0f136d5
1 changed files with 39 additions and 24 deletions
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63
lib/hooks/shift.c
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@ -15,11 +15,16 @@
static int hook_shift(struct hook *h, int when, struct hook_info *k)
{
struct {
struct timespec offset;
union {
struct timespec ts; /**< For SHIFT_TS_* modes. */
int seq; /**< For SHIFT_SEQUENCE mode. */
} offset;
enum {
TS_ORIGIN,
TS_RECEIVED,
TS_SENT
SHIFT_TS_ORIGIN,
SHIFT_TS_RECEIVED,
SHIFT_TS_SENT,
SHIFT_SEQUENCE
} mode;
} *private = hook_storage(h, when, sizeof(*private), NULL, NULL);
@ -28,12 +33,9 @@ static int hook_shift(struct hook *h, int when, struct hook_info *k)
if (!h->parameter)
error("Missing parameter for hook: '%s'", plugin_name(h));
char *endptr;
double offset;
char *endptr, *off;
char *off;
char *cpy = strdup(h->parameter);
char *tok1 = strtok(cpy, ",");
char *tok2 = strtok(NULL, ",");
@ -41,25 +43,36 @@ static int hook_shift(struct hook *h, int when, struct hook_info *k)
off = tok2;
if (!strcmp(tok1, "origin"))
private->mode = TS_ORIGIN;
private->mode = SHIFT_TS_ORIGIN;
else if (!strcmp(tok1, "received"))
private->mode = TS_RECEIVED;
private->mode = SHIFT_TS_RECEIVED;
else if (!strcmp(tok1, "sent"))
private->mode = TS_SENT;
private->mode = SHIFT_TS_SENT;
else if (!strcmp(tok1, "sequence"))
private->mode = SHIFT_SEQUENCE;
else
error("Invalid mode parameter for hook '%s'", plugin_name(h));
}
else {
off = tok1;
private->mode = TS_ORIGIN;
private->mode = SHIFT_TS_ORIGIN; /* Default mode */
}
switch (private->mode) {
case SHIFT_TS_ORIGIN:
case SHIFT_TS_RECEIVED:
case SHIFT_TS_SENT:
private->offset.ts = time_from_double(strtod(off, &endptr));
break;
case SHIFT_SEQUENCE:
private->offset.seq = strtoul(off, &endptr, 10);
break;
}
offset = strtod(off, &endptr);
if (endptr == off)
error("Invalid offset parameter for hook '%s'", plugin_name(h));
private->offset = time_from_double(offset);
free(cpy);
@ -67,16 +80,18 @@ static int hook_shift(struct hook *h, int when, struct hook_info *k)
case HOOK_READ:
for (int i = 0; i < k->cnt; i++) {
struct timespec *ts = NULL;
struct sample *s = k->smps[i];
switch (private->mode) {
case TS_ORIGIN: ts = &k->smps[i]->ts.origin; break;
case TS_RECEIVED: ts = &k->smps[i]->ts.received; break;
case TS_SENT: ts = &k->smps[i]->ts.sent; break;
case SHIFT_TS_ORIGIN:
s->ts.origin = time_add(&s->ts.origin, &private->offset.ts); break;
case SHIFT_TS_RECEIVED:
s->ts.received = time_add(&s->ts.received, &private->offset.ts); break;
case SHIFT_TS_SENT:
s->ts.origin = time_add(&s->ts.sent, &private->offset.ts); break;
case SHIFT_SEQUENCE:
s->sequence += private->offset.seq; break;
}
if (ts)
*ts = time_add(ts, &private->offset);
}
return k->cnt;
@ -87,7 +102,7 @@ static int hook_shift(struct hook *h, int when, struct hook_info *k)
static struct plugin p = {
.name = "shift",
.description = "Shift the origin timestamp of samples",
.description = "Shift the origin timestamp or sequence number of samples",
.type = PLUGIN_TYPE_HOOK,
.hook = {
.priority = 99,