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Annotation of embedaddon/quagga/lib/vector.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Generic vector interface header.
        !             3:  * Copyright (C) 1997, 98 Kunihiro Ishiguro
        !             4:  *
        !             5:  * This file is part of GNU Zebra.
        !             6:  *
        !             7:  * GNU Zebra is free software; you can redistribute it and/or modify it
        !             8:  * under the terms of the GNU General Public License as published by the
        !             9:  * Free Software Foundation; either version 2, or (at your option) any
        !            10:  * later version.
        !            11:  *
        !            12:  * GNU Zebra is distributed in the hope that it will be useful, but
        !            13:  * WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            15:  * General Public License for more details.
        !            16:  *
        !            17:  * You should have received a copy of the GNU General Public License
        !            18:  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
        !            19:  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
        !            20:  * 02111-1307, USA.  
        !            21:  */
        !            22: 
        !            23: #ifndef _ZEBRA_VECTOR_H
        !            24: #define _ZEBRA_VECTOR_H
        !            25: 
        !            26: /* struct for vector */
        !            27: struct _vector 
        !            28: {
        !            29:   unsigned int active;         /* number of active slots */
        !            30:   unsigned int alloced;                /* number of allocated slot */
        !            31:   void **index;                        /* index to data */
        !            32: };
        !            33: typedef struct _vector *vector;
        !            34: 
        !            35: #define VECTOR_MIN_SIZE 1
        !            36: 
        !            37: /* (Sometimes) usefull macros.  This macro convert index expression to
        !            38:  array expression. */
        !            39: /* Reference slot at given index, caller must ensure slot is active */
        !            40: #define vector_slot(V,I)  ((V)->index[(I)])
        !            41: /* Number of active slots. 
        !            42:  * Note that this differs from vector_count() as it the count returned
        !            43:  * will include any empty slots
        !            44:  */
        !            45: #define vector_active(V) ((V)->active)
        !            46: 
        !            47: /* Prototypes. */
        !            48: extern vector vector_init (unsigned int size);
        !            49: extern void vector_ensure (vector v, unsigned int num);
        !            50: extern int vector_empty_slot (vector v);
        !            51: extern int vector_set (vector v, void *val);
        !            52: extern int vector_set_index (vector v, unsigned int i, void *val);
        !            53: extern void vector_unset (vector v, unsigned int i);
        !            54: extern unsigned int vector_count (vector v);
        !            55: extern void vector_only_wrapper_free (vector v);
        !            56: extern void vector_only_index_free (void *index);
        !            57: extern void vector_free (vector v);
        !            58: extern vector vector_copy (vector v);
        !            59: 
        !            60: extern void *vector_lookup (vector, unsigned int);
        !            61: extern void *vector_lookup_ensure (vector, unsigned int);
        !            62: 
        !            63: #endif /* _ZEBRA_VECTOR_H */