/*

 * ngtcp2

 *

 * Copyright (c) 2022 ngtcp2 contributors

 *

 * Permission is hereby granted, free of charge, to any person obtaining

 * a copy of this software and associated documentation files (the

 * "Software"), to deal in the Software without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sublicense, and/or sell copies of the Software, and to

 * permit persons to whom the Software is furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice shall be

 * included in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE

 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */

#include "ngtcp2_opl.h"

void ngtcp2_opl_init(ngtcp2_opl *opl) { opl->head = NULL; }

void ngtcp2_opl_push(ngtcp2_opl *opl, ngtcp2_opl_entry *ent) {

  ent->next = opl->head;

  opl->head = ent;

}

ngtcp2_opl_entry *ngtcp2_opl_pop(ngtcp2_opl *opl) {

  ngtcp2_opl_entry *ent = opl->head;

  if (!ent) {

    return NULL;

  }

  opl->head = ent->next;

  return ent;

}

void ngtcp2_opl_clear(ngtcp2_opl *opl) { opl->head = NULL; }