1 /* $Id: rsisamc.c,v 1.18 2004-08-20 14:44:46 heikki Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
32 static void *r_create(RSET ct, const struct rset_control *sel, void *parms);
33 static RSFD r_open (RSET ct, int flag);
34 static void r_close (RSFD rfd);
35 static void r_delete (RSET ct);
36 static void r_rewind (RSFD rfd);
37 static int r_read (RSFD rfd, void *buf);
38 static int r_write (RSFD rfd, const void *buf);
40 static const struct rset_control control =
54 const struct rset_control *rset_kind_isamc = &control;
58 struct rset_pp_info *next;
59 struct rset_isamc_info *info;
64 struct rset_isamc_info {
68 int (*cmp)(const void *p1, const void *p2);
69 struct rset_pp_info *ispt_list;
72 static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
74 rset_isamc_parms *pt = (rset_isamc_parms *) parms;
75 struct rset_isamc_info *info;
77 ct->flags |= RSET_FLAG_VOLATILE;
78 info = (struct rset_isamc_info *) xmalloc (sizeof(*info));
81 info->key_size = pt->key_size;
83 info->ispt_list = NULL;
87 RSFD r_open (RSET ct, int flag)
89 struct rset_isamc_info *info = (struct rset_isamc_info *) ct->buf;
90 struct rset_pp_info *ptinfo;
92 logf (LOG_DEBUG, "risamc_open");
93 if (flag & RSETF_WRITE)
95 logf (LOG_FATAL, "ISAMC set type is read-only");
98 ptinfo = (struct rset_pp_info *) xmalloc (sizeof(*ptinfo));
99 ptinfo->next = info->ispt_list;
100 info->ispt_list = ptinfo;
101 ptinfo->pt = isc_pp_open (info->is, info->pos);
103 ptinfo->buf = xmalloc (info->key_size);
107 static void r_close (RSFD rfd)
109 struct rset_isamc_info *info = ((struct rset_pp_info*) rfd)->info;
110 struct rset_pp_info **ptinfop;
112 for (ptinfop = &info->ispt_list; *ptinfop; ptinfop = &(*ptinfop)->next)
115 xfree ((*ptinfop)->buf);
116 isc_pp_close ((*ptinfop)->pt);
117 *ptinfop = (*ptinfop)->next;
121 logf (LOG_FATAL, "r_close but no rfd match!");
125 static void r_delete (RSET ct)
127 struct rset_isamc_info *info = (struct rset_isamc_info *) ct->buf;
129 logf (LOG_DEBUG, "rsisamc_delete");
130 assert (info->ispt_list == NULL);
134 static void r_rewind (RSFD rfd)
136 logf (LOG_DEBUG, "rsisamc_rewind");
140 static int r_read (RSFD rfd, void *buf)
142 struct rset_pp_info *pinfo = (struct rset_pp_info *) rfd;
144 r = isc_pp_read(pinfo->pt, buf);
147 if (*pinfo->countp == 0 || (*pinfo->info->cmp)(buf, pinfo->buf) > 1)
149 memcpy (pinfo->buf, buf, pinfo->info->key_size);
156 static int r_write (RSFD rfd, const void *buf)
158 logf (LOG_FATAL, "ISAMC set type is read-only");