* - consistency checks
*/
/*
- * This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
+ * This file is
+ * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+ *
+ * It is part of adns, which is
+ * Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
+ * Copyright (C) 1999-2000 Tony Finch <dot@dotat.at>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include "internal.h"
-void adns_checkconsistency(adns_state ads) { adns__consistency(ads,cc_user); }
+void adns_checkconsistency(adns_state ads, adns_query qu) {
+ adns__consistency(ads,qu,cc_user);
+}
#define DLIST_CHECK(list, nodevar, part, body) \
if ((list).head) { \
} \
}
+#define DLIST_ASSERTON(node, nodevar, list, part) \
+ do { \
+ for ((nodevar)= (list).head; \
+ (nodevar) != (node); \
+ (nodevar)= (nodevar)->part next) { \
+ assert((nodevar)); \
+ } \
+ } while(0)
+
static void checkc_query_alloc(adns_state ads, adns_query qu) {
allocnode *an;
}
static void checkc_query(adns_state ads, adns_query qu) {
+ adns_query child;
+
assert(qu->udpnextserver < ads->nservers);
assert(!(qu->udpsent & (~0UL << ads->nservers)));
- assert(!(qu->tcpfailed & (~0UL << ads->nservers)));
- assert(qu->udpretries <= UDPMAXRETRIES);
assert(qu->search_pos <= ads->nsearchlist);
+ if (qu->parent) DLIST_ASSERTON(qu, child, qu->parent->children, siblings.);
+}
+
+static void checkc_notcpbuf(adns_state ads) {
+ assert(!ads->tcpsend.used);
+ assert(!ads->tcprecv.used);
+ assert(!ads->tcprecv_skip);
}
static void checkc_global(adns_state ads) {
switch (ads->tcpstate) {
case server_connecting:
assert(ads->tcpsocket >= 0);
- case server_disconnected: /* fall through */
- assert(!ads->tcprecv.used);
- assert(!ads->tcpsend.used);
+ checkc_notcpbuf(ads);
+ break;
+ case server_disconnected:
+ case server_broken:
+ assert(ads->tcpsocket == -1);
+ checkc_notcpbuf(ads);
break;
case server_ok:
assert(ads->tcpsocket >= 0);
+ assert(ads->tcprecv_skip <= ads->tcprecv.used);
break;
default:
assert(!"ads->tcpstate value");
assert(ads->searchlist || !ads->nsearchlist);
}
-static void checkc_queue_timew(adns_state ads) {
+static void checkc_queue_udpw(adns_state ads) {
adns_query qu;
- DLIST_CHECK(ads->timew, qu, , {
- switch (qu->state) {
- case query_tosend:
- assert(qu->udpsent);
- assert(!qu->tcpfailed);
- break;
- case query_tcpwait:
- assert(ads->tcpstate != server_ok);
- break;
- case query_tcpsent:
- break;
- default:
- assert(!"timew state");
- }
+ DLIST_CHECK(ads->udpw, qu, , {
+ assert(qu->state==query_tosend);
+ assert(qu->retries <= UDPMAXRETRIES);
+ assert(qu->udpsent);
assert(!qu->children.head && !qu->children.tail);
checkc_query(ads,qu);
checkc_query_alloc(ads,qu);
});
}
+static void checkc_queue_tcpw(adns_state ads) {
+ adns_query qu;
+
+ DLIST_CHECK(ads->tcpw, qu, , {
+ assert(qu->state==query_tcpw);
+ assert(!qu->children.head && !qu->children.tail);
+ assert(qu->retries <= ads->nservers+1);
+ checkc_query(ads,qu);
+ checkc_query_alloc(ads,qu);
+ });
+}
+
static void checkc_queue_childw(adns_state ads) {
adns_query parent, child;
DLIST_CHECK(ads->childw, parent, , {
- assert(parent->state == query_child);
+ assert(parent->state == query_childw);
assert(parent->children.head);
DLIST_CHECK(parent->children, child, siblings., {
assert(child->parent == parent);
assert(qu->state == query_done);
assert(!qu->children.head && !qu->children.tail);
assert(!qu->parent);
+ assert(!qu->allocations.head && !qu->allocations.tail);
checkc_query(ads,qu);
});
}
-void adns__consistency(adns_state ads, consistency_checks cc) {
+void adns__consistency(adns_state ads, adns_query qu, consistency_checks cc) {
+ adns_query search;
+
switch (cc) {
case cc_user:
break;
}
checkc_global(ads);
- checkc_queue_timew(ads);
+ checkc_queue_udpw(ads);
+ checkc_queue_tcpw(ads);
checkc_queue_childw(ads);
checkc_queue_output(ads);
+
+ if (qu) {
+ switch (qu->state) {
+ case query_tosend:
+ DLIST_ASSERTON(qu, search, ads->udpw, );
+ break;
+ case query_tcpw:
+ DLIST_ASSERTON(qu, search, ads->tcpw, );
+ break;
+ case query_childw:
+ DLIST_ASSERTON(qu, search, ads->childw, );
+ break;
+ case query_done:
+ DLIST_ASSERTON(qu, search, ads->output, );
+ break;
+ default:
+ assert(!"specific query state");
+ }
+ }
}