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core: add a function to test for sensors of a given cylinder

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We want to prevent the user from accidentally deleting a
cylinder with sensor readings. Therefore, we need such a
function.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-09-02 18:39:17 +02:00 • committed by Dirk Hohndel
parent 5eda1c0e39
commit 28fe6a7b38
3 changed files with 15 additions and 1 deletions
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14
core/dive.c
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@ -3481,3 +3481,17 @@ struct gasmix get_gasmix_at_time(const struct dive *d, const struct divecomputer
struct gasmix gasmix = gasmix_air;
return get_gasmix(d, dc, time.seconds, &ev, gasmix);
}
/* Does that cylinder have any pressure readings? */
extern bool cylinder_with_sensor_sample(const struct dive *dive, int cylinder_id)
{
for (const struct divecomputer *dc = &dive->dc; dc; dc = dc->next) {
for (int i = 0; i < dc->samples; ++i) {
for (int j = 0; j < MAX_SENSORS; ++j) {
if (dc->sample[i].sensor[j] == cylinder_id)
return true;
}
}
}
return false;
}

1
core/dive.h
View file

@ -198,6 +198,7 @@ extern int get_cylinder_index(const struct dive *dive, const struct event *ev);
extern struct gasmix get_gasmix_from_event(const struct dive *, const struct event *ev);
extern int nr_cylinders(const struct dive *dive);
extern int nr_weightsystems(const struct dive *dive);
extern bool cylinder_with_sensor_sample(const struct dive *dive, int cylinder_id);
/* UI related protopypes */

1
core/divecomputer.c
View file

@ -548,4 +548,3 @@ void free_dc(struct divecomputer *dc)
free_dc_contents(dc);
free(dc);
}