Do some basic sanity testing on the libdivecomputer gasmix data

It's quite often obvious crap for the "doesn't exist" or "plain air" case.

So if it's reporting 100% O2, we just ignore it.  Sure, it could be
right, but for the dives I have I know it's just libdivecomputer being
wrong.

Same goes for obvious crap like 255% Helium.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-09-12 13:31:43 -07:00
parent 42f627b8b1
commit 4e7161efd6

View file

@ -124,6 +124,7 @@ static int parse_gasmixes(struct dive *dive, parser_t *parser, int ngases)
for (i = 0; i < ngases; i++) {
int rc;
gasmix_t gasmix = {0};
int o2, he;
rc = parser_get_field(parser, FIELD_TYPE_GASMIX, i, &gasmix);
if (rc != PARSER_STATUS_SUCCESS && rc != PARSER_STATUS_UNSUPPORTED)
@ -132,8 +133,17 @@ static int parse_gasmixes(struct dive *dive, parser_t *parser, int ngases)
if (i >= MAX_CYLINDERS)
continue;
dive->cylinder[i].gasmix.o2.permille = gasmix.oxygen * 1000 + 0.5;
dive->cylinder[i].gasmix.he.permille = gasmix.helium * 1000 + 0.5;
o2 = gasmix.oxygen * 1000 + 0.5;
he = gasmix.helium * 1000 + 0.5;
/* Ignore bogus data - libdivecomputer does some crazy stuff */
if (o2 < 210 || o2 >= 1000)
o2 = 0;
if (he < 0 || he >= 800 || o2+he >= 1000)
he = 0;
dive->cylinder[i].gasmix.o2.permille = o2;
dive->cylinder[i].gasmix.he.permille = he;
}
return PARSER_STATUS_SUCCESS;
}