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Core: copy and free extra_data of dive computer structure

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On dive computer copy, the extra data (a list of key/value pairs)
was simply copied as a pointer. This worked because the list was
never freed nor modified. Copy and free the list on dive computer
copy and free, respectively.

This made it necessary to move the STRUCTURE_LIST_* macros up in
the dive.c file.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-10-16 07:41:48 +02:00 • committed by Dirk Hohndel
parent 763c3683e5
commit c61cf991e0
1 changed files with 64 additions and 52 deletions
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116
core/dive.c
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@ -473,57 +473,6 @@ struct dive *alloc_dive(void)
return dive;
}
static void free_dc(struct divecomputer *dc);
static void free_dc_contents(struct divecomputer *dc);
static void free_pic(struct picture *picture);
/* this is very different from the copy_divecomputer later in this file;
* this function actually makes full copies of the content */
static void copy_dc(const struct divecomputer *sdc, struct divecomputer *ddc)
{
*ddc = *sdc;
ddc->model = copy_string(sdc->model);
copy_samples(sdc, ddc);
copy_events(sdc, ddc);
}
static void dc_cylinder_renumber(struct dive *dive, struct divecomputer *dc, const int mapping[]);
/* copy dive computer list and renumber the cylinders
* space for the first divecomputer is provided by the
* caller, the remainder is allocated */
static void copy_dc_renumber(struct dive *d, const struct divecomputer *sdc, struct divecomputer *ddc, const int cylinders_map[])
{
for (;;) {
*ddc = *sdc;
ddc->model = copy_string(sdc->model);
copy_samples(sdc, ddc);
copy_events(sdc, ddc);
dc_cylinder_renumber(d, ddc, cylinders_map);
if (!sdc->next)
break;
sdc = sdc->next;
ddc->next = calloc(1, sizeof(struct divecomputer));
ddc = ddc->next;
}
ddc->next = NULL;
}
/* copy an element in a list of pictures */
static void copy_pl(struct picture *sp, struct picture *dp)
{
*dp = *sp;
dp->filename = copy_string(sp->filename);
}
/* copy an element in a list of tags */
static void copy_tl(struct tag_entry *st, struct tag_entry *dt)
{
dt->tag = malloc(sizeof(struct divetag));
dt->tag->name = copy_string(st->tag->name);
dt->tag->source = copy_string(st->tag->source);
}
/* Clear everything but the first element;
* this works for taglist, picturelist, even dive computers */
#define STRUCTURED_LIST_FREE(_type, _start, _free) \
@ -549,6 +498,62 @@ static void copy_tl(struct tag_entry *st, struct tag_entry *dt)
*_dptr = 0; \
}
static void free_dc(struct divecomputer *dc);
static void free_dc_contents(struct divecomputer *dc);
static void free_pic(struct picture *picture);
/* copy an element in a list of dive computer extra data */
static void copy_extra_data(struct extra_data *sed, struct extra_data *ded)
{
ded->key = copy_string(sed->key);
ded->value = copy_string(sed->value);
}
/* this is very different from the copy_divecomputer later in this file;
* this function actually makes full copies of the content */
static void copy_dc(const struct divecomputer *sdc, struct divecomputer *ddc)
{
*ddc = *sdc;
ddc->model = copy_string(sdc->model);
copy_samples(sdc, ddc);
copy_events(sdc, ddc);
STRUCTURED_LIST_COPY(struct extra_data, sdc->extra_data, ddc->extra_data, copy_extra_data);
}
static void dc_cylinder_renumber(struct dive *dive, struct divecomputer *dc, const int mapping[]);
/* copy dive computer list and renumber the cylinders
* space for the first divecomputer is provided by the
* caller, the remainder is allocated */
static void copy_dc_renumber(struct dive *d, const struct divecomputer *sdc, struct divecomputer *ddc, const int cylinders_map[])
{
for (;;) {
copy_dc(sdc, ddc);
dc_cylinder_renumber(d, ddc, cylinders_map);
if (!sdc->next)
break;
sdc = sdc->next;
ddc->next = calloc(1, sizeof(struct divecomputer));
ddc = ddc->next;
}
ddc->next = NULL;
}
/* copy an element in a list of pictures */
static void copy_pl(struct picture *sp, struct picture *dp)
{
*dp = *sp;
dp->filename = copy_string(sp->filename);
}
/* copy an element in a list of tags */
static void copy_tl(struct tag_entry *st, struct tag_entry *dt)
{
dt->tag = malloc(sizeof(struct divetag));
dt->tag->name = copy_string(st->tag->name);
dt->tag->source = copy_string(st->tag->source);
}
static void free_dive_structures(struct dive *d)
{
if (!d)
@ -2961,11 +2966,18 @@ void free_events(struct event *ev)
}
}
static void free_extra_data(struct extra_data *ed)
{
free((void *)ed->key);
free((void *)ed->value);
}
static void free_dc_contents(struct divecomputer *dc)
{
free(dc->sample);
free((void *)dc->model);
free_events(dc->events);
STRUCTURED_LIST_FREE(struct extra_data, dc->extra_data, free_extra_data);
}
static void free_dc(struct divecomputer *dc)
@ -3075,11 +3087,11 @@ static const struct divecomputer *find_matching_computer(const struct divecomput
return p;
}
static void copy_dive_computer(struct divecomputer *res, const struct divecomputer *a)
{
*res = *a;
res->model = copy_string(a->model);
STRUCTURED_LIST_COPY(struct extra_data, a->extra_data, res->extra_data, copy_extra_data);
res->samples = res->alloc_samples = 0;
res->sample = NULL;
res->events = NULL;