gem-graph-server/src/centers.c

54 lines
2.3 KiB
C

//=-------------------------------------------------------------------------=//
// Centers management module //
// //
// Copyright © 2021 The Gem-graph Project //
// //
// This file is part of gem-graph. //
// //
// This program is free software: you can redistribute it and/or modify //
// it under the terms of the GNU Affero 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 Affero General Public License for more details. //
// //
// You should have received a copy of the GNU Affero General Public License //
// along with this program. If not, see <https://www.gnu.org/licenses/>. //
//=-------------------------------------------------------------------------=//
#include "../include/base.h"
/* -------------------------------------------------------------------------- */
Center_t *CenterAdd(Center_t *anyCenter, Center_t *newCenter)
{
if (!newCenter) return NULL;
if (anyCenter->next) {
anyCenter->next->prev = newCenter;
}
newCenter->next = anyCenter->next;
anyCenter->next = newCenter;
newCenter->prev = anyCenter;
return newCenter;
}
void CenterRemove(Center_t *oldCenter)
{
register Center_t *prev;
register Center_t *next;
//printLog("Removing center %p\n", oldCenter);
if (!oldCenter) return;
prev = oldCenter->prev;
next = oldCenter->next;
if (prev) prev->next = oldCenter->next;
if (next) next->prev = oldCenter->prev;
}