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Annotation of embedaddon/quagga/lib/vector.h, revision 1.1.1.1

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 */