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57 lines
1.6 KiB
57 lines
1.6 KiB
/*
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The mediastreamer library aims at providing modular media processing and I/O
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for linphone, but also for any telephony application.
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Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "msqueue.h"
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#include <string.h>
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MSQueue * ms_queue_new()
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{
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MSQueue *q=g_malloc(sizeof(MSQueue));
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memset(q,0,sizeof(MSQueue));
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return q;
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}
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MSMessage *ms_queue_get(MSQueue *q)
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{
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MSMessage *b=q->last;
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if (b==NULL) return NULL;
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q->last=b->prev;
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if (b->prev==NULL) q->first=NULL; /* it was the only element of the queue*/
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q->size--;
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b->next=b->prev=NULL;
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return(b);
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}
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void ms_queue_put(MSQueue *q, MSMessage *m)
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{
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MSMessage *mtmp=q->first;
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g_return_if_fail(m!=NULL);
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q->first=m;
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m->next=mtmp;
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if (mtmp!=NULL)
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{
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mtmp->prev=m;
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}
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else q->last=m; /* it was the first element of the q */
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q->size++;
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}
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