osip_fifo.h

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/*
  The oSIP library implements the Session Initiation Protocol (SIP -rfc3261-)
  Copyright (C) 2001-2012 Aymeric MOIZARD amoizard@antisip.com
  
  This library 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 2.1 of the License, or (at your option) any later version.
  
  This library 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
  Lesser General Public License for more details.
  
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef _FIFO_H_
#define _FIFO_H_

#ifndef OSIP_MONOTHREAD
#include <osip2/osip_mt.h>
#endif
#include <osipparser2/osip_list.h>

#ifdef __cplusplus
extern "C" {
#endif


#ifndef DOXYGEN

  typedef enum { osip_ok, osip_empty } osip_fifo_state;

#endif

  typedef struct osip_fifo osip_fifo_t;

  struct osip_fifo {
#ifndef OSIP_MONOTHREAD
    struct osip_mutex *qislocked;          
    struct osip_sem *qisempty;             
#endif
    osip_list_t queue;                     
    int nb_elt;                            
    osip_fifo_state state;                 
  };

  void osip_fifo_init (osip_fifo_t * ff);
  void osip_fifo_free (osip_fifo_t * ff);
  int osip_fifo_insert (osip_fifo_t * ff, void *element);
  int osip_fifo_add (osip_fifo_t * ff, void *element);
  int osip_fifo_size (osip_fifo_t * ff);
#ifndef OSIP_MONOTHREAD

  void *osip_fifo_get (osip_fifo_t * ff);
#endif

  void *osip_fifo_tryget (osip_fifo_t * ff);


#ifdef __cplusplus
}
#endif
#endif