universalservice/uns.c

40 lines
1.1 KiB
C

/* Copyright (C) 2024 Peter McGoron
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "uns.h"
void uns_root_add(struct uns_gc *gc, struct uns_ctr *root)
{
root->prev = NULL;
root->next = gc->roots;
gc->roots = root;
}
void uns_root_remove(struct uns_gc *gc, struct uns_ctr *root)
{
if (root->prev) {
root->prev->next = root->next;
}
if (root->next) {
root->next->prev = root->prev;
}
if (gc->roots == root)
gc->roots = root->next;
root->prev = root->next = NULL;
}