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Core: dynamically resize weight table

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Replace the fixed-size weightsystem table by a dynamically
relocated table. Reuse the table-macros used in other parts
of the code.

The table stores weightsystem entries, not pointers to
weightsystems. Thus, ownership of the description string is
taken when adding a weightsystem. An extra function adds
a cloned weightsystem at the end of the table.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-06-26 17:21:03 +02:00 • committed by Dirk Hohndel
parent efdb3503ea
commit a5e7f4253a
25 changed files with 182 additions and 154 deletions
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19
core/equipment.h
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@ -39,12 +39,25 @@ typedef struct
const char *description; /* "integrated", "belt", "ankle" */
} weightsystem_t;
/* Table of weightsystems. Attention: this stores weightsystems,
* *not* pointers * to weightsystems. This has two crucial
* consequences:
* 1) Pointers to weightsystems are not stable. They may be
* invalidated if the table is reallocated.
* 2) add_to_weightsystem_table(), etc. takes ownership of the
* weightsystem. Notably of the description string */
struct weightsystem_table {
int nr, allocated;
weightsystem_t *weightsystems;
};
#define MAX_CYLINDERS (20)
#define MAX_WEIGHTSYSTEMS (6)
#define MAX_TANK_INFO (100)
#define MAX_WS_INFO (100)
extern int cylinderuse_from_text(const char *text);
extern void copy_weights(const struct weightsystem_table *s, struct weightsystem_table *d);
extern void add_cloned_weightsystem(struct weightsystem_table *t, weightsystem_t ws);
extern void add_cylinder_description(const cylinder_type_t *);
extern void add_weightsystem_description(const weightsystem_t *);
extern bool same_weightsystem(weightsystem_t w1, weightsystem_t w2);
@ -60,6 +73,10 @@ extern int find_best_gasmix_match(struct gasmix mix, const cylinder_t array[]);
extern void dump_cylinders(struct dive *dive, bool verbose);
#endif
/* Weightsystem table functions */
extern void clear_weightsystem_table(struct weightsystem_table *);
extern void add_to_weightsystem_table(struct weightsystem_table *, int idx, weightsystem_t ws);
void get_gas_string(struct gasmix gasmix, char *text, int len);
const char *gasname(struct gasmix gasmix);