# SbFifo.h

    00001 #ifndef COIN_SBFIFO_H
    00002 #define COIN_SBFIFO_H
    00003
    00004 /**************************************************************************\
    00005  *
    00006  *  This file is part of the Coin 3D visualization library.
    00007  *  Copyright (C) 1998-2003 by Systems in Motion.  All rights reserved.
    00008  *
    00009  *  This library is free software; you can redistribute it and/or
    00010  *  modify it under the terms of the GNU General Public License
    00011  *  ("GPL") version 2 as published by the Free Software Foundation.
    00012  *  See the file LICENSE.GPL at the root directory of this source
    00013  *  distribution for additional information about the GNU GPL.
    00014  *
    00015  *  For using Coin with software that can not be combined with the GNU
    00016  *  GPL, and for taking advantage of the additional benefits of our
    00017  *  support services, please contact Systems in Motion about acquiring
    00018  *  a Coin Professional Edition License.
    00019  *
    00020  *  See <URL:http://www.coin3d.org> for  more information.
    00021  *
    00022  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
    00023  *  <URL:http://www.sim.no>.
    00024  *
    00025 \**************************************************************************/
    00026
    00027 #include <Inventor/C/threads/fifo.h>
    00028
    00029 class SbFifo {
    00030 public:
    00031   SbFifo(void) { this->fifo = cc_fifo_new(); }
    00032   ~SbFifo(void) { cc_fifo_delete(this->fifo); }
    00033
    00034   void assign(void * ptr, uint32_t type)
    00035     { cc_fifo_assign(this->fifo, ptr, type); }
    00036   void retrieve(void *& ptr, uint32_t &type)
    00037     { cc_fifo_retrieve(this->fifo, &ptr, &type); }
    00038   SbBool tryRetrieve(void *& ptr, uint32_t & type)
    00039     { return cc_fifo_try_retrieve(this->fifo, &ptr, &type); }
    00040
    00041   unsigned int size(void) const { return cc_fifo_size(this->fifo); }
    00042
    00043   void lock(void) const { cc_fifo_lock(this->fifo); }
    00044   void unlock(void) const { cc_fifo_unlock(this->fifo); }
    00045
    00046   // lock/unlock only needed around the following operations:
    00047   SbBool peek(void *& item, uint32_t & type) const
    00048     { return cc_fifo_peek(this->fifo, &item, &type); }
    00049   SbBool contains(void * item) const
    00050     { return cc_fifo_contains(this->fifo, item); }
    00051   SbBool reclaim(void * item)
    00052     { return cc_fifo_reclaim(this->fifo, item); }
    00053
    00054 private:
    00055   cc_fifo * fifo;
    00056 };
    00057
    00058 #endif // !COIN_SBFIFO_H