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smtk-import - Add helper funcs to manage tank info

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Framed in a full rework of the cylinders info import management, this
funcs will be used in next patches.

Functions merge_cylinder_type(), merge_cylinder_mix() and
merge_cylinder_info(), have been shamelessly copied from dive.c as they
have been removed by 162767aa dated 2017-03-11 just when I was going to
use them.

Macros MERGE_MAX() and MERGE_MIN() have just been copied from dive.c,
but they could be moved to dive.h so they could be used elsewhere if
needed.

Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
This commit is contained in:
Salvador Cuñat 2017-03-16 16:41:50 +01:00 • committed by Dirk Hohndel
parent 2cef8395b5
commit 36658d87f3
1 changed files with 89 additions and 0 deletions
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89
smtk-import/smartrak.c
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@ -417,6 +417,95 @@ static void smtk_build_tank_info(MdbHandle *mdb, struct dive *dive, int tanknum,
mdb_free_tabledef(table);
}
/*
* Under some circustances we can get the same tank from DC and from
* the smartrak DB. Will use this utility to check and clean .
*/
bool is_same_cylinder(cylinder_t *cyl_a, cylinder_t *cyl_b)
{
// different gasmixes (non zero)
if (gasmix_distance(&cyl_a->gasmix, &cyl_b->gasmix) != 0 &&
cyl_a->gasmix.o2.permille != 0 &&
cyl_b->gasmix.o2.permille != 0)
// different start pressures (possible error 0.1 bar)
if (!abs(cyl_a->start.mbar - cyl_b->start.mbar) <= 100)
return false;
// different end pressures (possible error 0.1 bar)
if (!abs(cyl_a->end.mbar - cyl_b->end.mbar) <= 100)
return false;
// different names (none of them null)
if (!same_string(cyl_a->type.description, "---") &&
!same_string(cyl_b->type.description, "---") &&
!same_string(cyl_a->type.description, cyl_b->type.description))
return false;
// Cylinders are most probably the same
return true;
}
/*
* Next three functions were removed from dive.c just when I was going to use them
* for this import (see 16276faa). Will tweak them a bit and will use for our needs
* Macros are copied from dive.c
*/
#define MERGE_MAX(res, a, b, n) res->n = MAX(a->n, b->n)
#define MERGE_MIN(res, a, b, n) res->n = (a->n) ? (b->n) ? MIN(a->n, b->n) : (a->n) : (b->n)
static void merge_cylinder_type(cylinder_type_t *src, cylinder_type_t *dst)
{
if (!dst->size.mliter)
dst->size.mliter = src->size.mliter;
if (!dst->workingpressure.mbar)
dst->workingpressure.mbar = src->workingpressure.mbar;
if (!dst->description || same_string(dst->description, "---")) {
dst->description = src->description;
src->description = NULL;
}
}
static void merge_cylinder_mix(struct gasmix *src, struct gasmix *dst)
{
if (!dst->o2.permille)
*dst = *src;
}
static void merge_cylinder_info(cylinder_t *src, cylinder_t *dst)
{
merge_cylinder_type(&src->type, &dst->type);
merge_cylinder_mix(&src->gasmix, &dst->gasmix);
MERGE_MAX(dst, dst, src, start.mbar);
MERGE_MIN(dst, dst, src, end.mbar);
if (!dst->cylinder_use)
dst->cylinder_use = src->cylinder_use;
}
/*
* Remove unused tanks and merge cylinders if there are signs that
* they might be duplicated. Higher numbers are more prone to be unused,
* so will make the clean reverse order.
* When a used cylinder is found, check against previous one; if they are
* both the same, merge and delete the higher number (as lower numbers are
* most probably returned by libdivecomputer raw data parse.
*/
static int smtk_clean_cylinders(struct dive *d)
{
int i = tanks - 1;
cylinder_t *cyl, *base = &d->cylinder[0];
cyl = base + tanks - 1;
while (cyl != base) {
if (same_string(cyl->type.description, "---") && cyl->start.mbar == 0 && cyl->end.mbar == 0)
remove_cylinder(d, i);
else
if (is_same_cylinder(cyl, cyl - 1)) {
merge_cylinder_info(cyl, cyl - 1);
remove_cylinder(d, i);
}
cyl--;
i--;
}
}
/*
* Parses a relation table and fills a list with the relations for a dive idx.
* Returns the number of relations found for a given dive idx.