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clarify "pos" in database.c

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the list of IDs is stored alphabetically so when accessing the database
with an ID one needs an indirection to get the correct record.
"pos" was not clear. "id_to_pos" is clearer.
This commit is contained in:
Cedric Roux
2016-05-04 10:48:12 +02:00
parent e54f87a00e
commit d4f5ab7745
1 changed files with 9 additions and 8 deletions
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common/utils/T/tracer/database.c
+9 -8
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@@ -28,7 +28,7 @@ typedef struct {
int isize;
group *g;
int gsize;
int *pos;
int *id_to_pos;
} database;
typedef struct {
@@ -326,10 +326,11 @@ void *parse_database(char *filename)
free(p.name.data);
free(p.value.data);
/* setup pos */
r->pos = malloc(sizeof(int) * r->isize); if (r->pos == NULL) abort();
/* setup id_to_pos */
r->id_to_pos = malloc(sizeof(int) * r->isize);
if (r->id_to_pos == NULL) abort();
for (i = 0; i < r->isize; i++)
r->pos[r->i[i].id] = i;
r->id_to_pos[r->i[i].id] = i;
return r;
}
@@ -420,7 +421,7 @@ void on_off(void *_d, char *item, int *a, int onoff)
char *event_name_from_id(void *_database, int id)
{
database *d = _database;
return d->i[d->pos[id]].name;
return d->i[d->id_to_pos[id]].name;
}
int event_id_from_name(void *_database, char *name)
@@ -442,9 +443,9 @@ database_event_format get_format(void *_database, int event_id)
abort();
}
ret.type = d->i[d->pos[event_id]].arg_type;
ret.name = d->i[d->pos[event_id]].arg_name;
ret.count = d->i[d->pos[event_id]].asize;
ret.type = d->i[d->id_to_pos[event_id]].arg_type;
ret.name = d->i[d->id_to_pos[event_id]].arg_name;
ret.count = d->i[d->id_to_pos[event_id]].asize;
return ret;
}