1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Knowledge Ventures * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Research 26 * 27 * hash table library 28 */ 29 30 #include "hashlib.h" 31 32 /* 33 * apply walker to each active bucket in the table 34 */ 35 36 int 37 hashwalk(Hash_table_t* tab, int flags, register int (*walker)(const char*, char*, void*), void* handle) 38 { 39 register Hash_bucket_t* b; 40 register int v; 41 Hash_position_t* pos; 42 43 if (!(pos = hashscan(tab, flags))) 44 return(-1); 45 v = 0; 46 while (b = hashnext(pos)) 47 if ((v = (*walker)(hashname(b), (tab->flags & HASH_VALUE) ? b->value : (char*)b, handle)) < 0) 48 break; 49 hashdone(pos); 50 return(v); 51 } 52