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avoid excessive and expensive invocations of vec_rebuild_lookup_table() 

see
    https://sourceforge.net/p/ngspice/support-requests/20/
  reported by Marlize Schoeman in ticket #20
This commit is contained in:
rlar 2016-06-01 20:04:48 +02:00
parent 85a3146b13
commit c2f761b123
1 changed files with 12 additions and 2 deletions
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14
src/frontend/vectors.c
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@ -773,7 +773,12 @@ vec_new(struct dvec *d)
if (plot_cur == NULL) {
fprintf(cp_err, "vec_new: Internal Error: no cur plot\n");
}
plot_cur->pl_lookup_valid = FALSE;
if (plot_cur->pl_lookup_valid && d->v_name) {
char *lower_name = copy(d->v_name);
strtolower(lower_name);
nghash_insert(plot_cur->pl_lookup_table, lower_name, d);
tfree(lower_name);
}
if ((d->v_flags & VF_PERMANENT) && (plot_cur->pl_scale == NULL))
plot_cur->pl_scale = d;
if (!d->v_plot)
@ -837,7 +842,12 @@ vec_free_x(struct dvec *v)
/* Now we have to take this dvec out of the plot list. */
if (pl != NULL) {
pl->pl_lookup_valid = FALSE;
if (pl->pl_lookup_valid) {
char *lower_name = copy(v->v_name);
strtolower(lower_name);
nghash_deleteItem(pl->pl_lookup_table, lower_name, v);
tfree(lower_name);
}
if (pl->pl_dvecs == v) {
pl->pl_dvecs = v->v_next;
} else {