58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1994-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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* Copyright (C) 1991-3 Stephen Crane
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*
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* Empire is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* queue.c: queue manipulation routines
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*
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* Known contributors to this file:
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*
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*/
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#include <config.h>
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#include <stddef.h>
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#include "lwpint.h"
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struct lwpProc *
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lwpGetFirst(struct lwpQueue *q)
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{
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struct lwpProc *head;
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if ((head = q->head) && !(q->head = head->next))
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q->tail = NULL;
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return head;
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}
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void
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lwpAddTail(struct lwpQueue *q, struct lwpProc *p)
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{
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if (!q->tail)
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q->head = p;
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else
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q->tail->next = p;
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q->tail = p;
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p->next = NULL;
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}
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