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db_file.cc
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/******************************************************************************
Copyright (c) 1995, 1996 Xerox Corporation. All rights reserved.
Portions of this code were written by Stephen White, aka ghond.
Use and copying of this software and preparation of derivative works based
upon this software are permitted. Any distribution of this software or
derivative works must comply with all applicable United States export
control laws. This software is made available AS IS, and Xerox Corporation
makes no warranty about the software, its performance or its conformity to
any specification. Any person obtaining a copy of this software is requested
to send their name and post office or electronic mail address to:
Pavel Curtis
Xerox PARC
3333 Coyote Hill Rd.
Palo Alto, CA 94304
*****************************************************************************/
/*****************************************************************************
* Routines for initializing, loading, dumping, and shutting down the database
*****************************************************************************/
#include "my-stat.h"
#include "my-unistd.h"
#include "my-stdio.h"
#include "my-stdlib.h"
#include "collection.h"
#include "config.h"
#include "db.h"
#include "db_io.h"
#include "db_private.h"
#include "list.h"
#include "log.h"
#include "options.h"
#include "server.h"
#include "storage.h"
#include "streams.h"
#include "str_intern.h"
#include "tasks.h"
#include "timers.h"
#include "utils.h"
#include "version.h"
static char *input_db_name, *dump_db_name;
static int dump_generation = 0;
static const char *header_format_string
= "** LambdaMOO Database, Format Version %u **\n";
DB_Version dbio_input_version;
/*********** Format version 4 support ***********/
/*
* This structure is compatible with the popular database format
* version 4.
*/
typedef struct Object4 {
Objid id;
Objid owner;
Objid location;
Objid contents;
Objid next;
Objid parent;
Objid child;
Objid sibling;
const char *name;
int flags;
Verbdef *verbdefs;
Proplist propdefs;
Pval *propval;
} Object4;
static Object4 **objects;
static int num_objects = 0;
static int max_objects = 0;
static void
dbv4_ensure_new_object(void)
{
if (max_objects == 0) {
max_objects = 100;
objects = (Object4 **)mymalloc(max_objects * sizeof(Object4 *), M_OBJECT_TABLE);
}
if (num_objects >= max_objects) {
int i;
Object4 **_new;
_new = (Object4 **)mymalloc(max_objects * 2 * sizeof(Object4 *), M_OBJECT_TABLE);
for (i = 0; i < max_objects; i++)
_new[i] = objects[i];
myfree(objects, M_OBJECT_TABLE);
objects = _new;
max_objects *= 2;
}
}
static Object4 *
dbv4_new_object(void)
{
Object4 *o;
dbv4_ensure_new_object();
o = objects[num_objects] = (Object4 *)mymalloc(sizeof(Object4), M_OBJECT);
o->id = num_objects;
num_objects++;
return o;
}
static void
dbv4_new_recycled_object(void)
{
dbv4_ensure_new_object();
objects[num_objects++] = 0;
}
static Object4 *
dbv4_find_object(Objid oid)
{
if (oid < 0 || oid >= num_objects)
return 0;
else
return objects[oid];
}
static int
dbv4_valid(Objid oid)
{
return dbv4_find_object(oid) != 0;
}
static Objid
dbv4_last_used_objid(void)
{
return num_objects - 1;
}
static int
dbv4_count_properties(Objid oid)
{
Object4 *o;
int nprops = 0;
for (o = dbv4_find_object(oid); o; o = dbv4_find_object(o->parent))
nprops += o->propdefs.cur_length;
return nprops;
}
/*
* The following functions work with both the version 4 database and
* the latest database version. If that changes they will need to be
* replaced.
*
* dbpriv_new_propdef
* dbpriv_build_prep_table
* db_verb_definer
* db_verb_names
* db_set_verb_program
* dbpriv_set_all_users
* db_all_users
* dbpriv_dbio_failed
* dbpriv_set_dbio_output
* dbpriv_set_dbio_input
*/
/*********** Verb and property I/O ***********/
static void
read_verbdef(Verbdef * v)
{
v->name = dbio_read_string_intern();
v->owner = dbio_read_objid();
v->perms = dbio_read_num();
v->prep = dbio_read_num();
v->next = 0;
v->program = 0;
}
static void
write_verbdef(Verbdef * v)
{
dbio_write_string(v->name);
dbio_write_objid(v->owner);
dbio_write_num(v->perms);
dbio_write_num(v->prep);
}
static Propdef
read_propdef()
{
const char *name = dbio_read_string_intern();
return dbpriv_new_propdef(name);
}
static void
write_propdef(Propdef * p)
{
dbio_write_string(p->name);
}
static void
read_propval(Pval * p)
{
p->var = dbio_read_var();
p->owner = dbio_read_objid();
p->perms = dbio_read_num();
}
static void
write_propval(Pval * p)
{
dbio_write_var(p->var);
dbio_write_objid(p->owner);
dbio_write_num(p->perms);
}
/*********** Object I/O ***********/
static int
v4_read_object(void)
{
Objid oid;
Object4 *o;
char s[20];
int i;
Verbdef *v, **prevv;
int nprops;
if (dbio_scanf("#%d", &oid) != 1 || oid != dbv4_last_used_objid() + 1)
return 0;
dbio_read_line(s, sizeof(s));
if (strcmp(s, " recycled\n") == 0) {
dbv4_new_recycled_object();
return 1;
} else if (strcmp(s, "\n") != 0)
return 0;
o = dbv4_new_object();
o->name = dbio_read_string_intern();
(void) dbio_read_string(); /* discard old handles string */
o->flags = dbio_read_num();
o->owner = dbio_read_objid();
o->location = dbio_read_objid();
o->contents = dbio_read_objid();
o->next = dbio_read_objid();
o->parent = dbio_read_objid();
o->child = dbio_read_objid();
o->sibling = dbio_read_objid();
o->verbdefs = 0;
prevv = &(o->verbdefs);
for (i = dbio_read_num(); i > 0; i--) {
v = (Verbdef *)mymalloc(sizeof(Verbdef), M_VERBDEF);
read_verbdef(v);
*prevv = v;
prevv = &(v->next);
}
o->propdefs.cur_length = 0;
o->propdefs.max_length = 0;
o->propdefs.l = 0;
if ((i = dbio_read_num()) != 0) {
o->propdefs.l = (Propdef *)mymalloc(i * sizeof(Propdef), M_PROPDEF);
o->propdefs.cur_length = i;
o->propdefs.max_length = i;
for (i = 0; i < o->propdefs.cur_length; i++) {
o->propdefs.l[i] = read_propdef();
#define CHECK_PROP_NAME(PROPERTY, property) !mystrcasecmp(o->propdefs.l[i].name, #property) ||
if (BUILTIN_PROPERTIES(CHECK_PROP_NAME) 0)
oklog("DB_WARNING: Property #%d.%s has a reserved name\n", o->id, o->propdefs.l[i].name);
#undef CHECK_PROP
}
}
nprops = dbio_read_num();
if (nprops)
o->propval = (Pval *)mymalloc(nprops * sizeof(Pval), M_PVAL);
else
o->propval = 0;
for (i = 0; i < nprops; i++) {
read_propval(o->propval + i);
}
return 1;
}
static int
ng_read_object(int anonymous)
{
Objid oid;
Object *o;
char s[20];
int i;
Verbdef *v, **prevv;
int nprops;
if (dbio_scanf("#%d", &oid) != 1)
return 0;
dbio_read_line(s, sizeof(s));
if (strcmp(s, " recycled\n") == 0) {
dbpriv_new_recycled_object();
return 1;
} else if (strcmp(s, "\n") != 0)
return 0;
/* At the point at which we're reading anonymous objects, we know
* we've already created all of the anonymous objects (they were
* created from references in tasks, other objects or the list
* of values pending finalization).
*/
if (anonymous) {
o = dbpriv_find_object(oid);
}
else {
o = dbpriv_new_object();
dbpriv_assign_nonce(o);
}
o->name = dbio_read_string_intern();
o->flags = dbio_read_num();
o->owner = dbio_read_objid();
o->location = dbio_read_var();
o->contents = dbio_read_var();
o->parents = dbio_read_var();
o->children = dbio_read_var();
o->verbdefs = 0;
prevv = &(o->verbdefs);
for (i = dbio_read_num(); i > 0; i--) {
v = (Verbdef *)mymalloc(sizeof(Verbdef), M_VERBDEF);
read_verbdef(v);
*prevv = v;
prevv = &(v->next);
}
o->propdefs.cur_length = 0;
o->propdefs.max_length = 0;
o->propdefs.l = 0;
if ((i = dbio_read_num()) != 0) {
o->propdefs.l = (Propdef *)mymalloc(i * sizeof(Propdef), M_PROPDEF);
o->propdefs.cur_length = i;
o->propdefs.max_length = i;
for (i = 0; i < o->propdefs.cur_length; i++) {
o->propdefs.l[i] = read_propdef();
#define CHECK_PROP_NAME(PROPERTY, property) !mystrcasecmp(o->propdefs.l[i].name, #property) ||
if (BUILTIN_PROPERTIES(CHECK_PROP_NAME) 0)
oklog("DB_WARNING: Property #%d.%s has a reserved name\n", o->id, o->propdefs.l[i].name);
#undef CHECK_PROP
}
}
o->nval = nprops = dbio_read_num();
if (nprops)
o->propval = (Pval *)mymalloc(nprops * sizeof(Pval), M_PVAL);
else
o->propval = 0;
for (i = 0; i < nprops; i++) {
read_propval(o->propval + i);
}
return 1;
}
static void
v4_write_object(Objid oid)
{
Object4 *o;
Verbdef *v;
int i;
int nverbdefs, nprops;
if (!dbv4_valid(oid)) {
dbio_printf("#%d recycled\n", oid);
return;
}
o = dbv4_find_object(oid);
dbio_printf("#%d\n", oid);
dbio_write_string(o->name);
dbio_write_string(""); /* placeholder for old handles string */
dbio_write_num(o->flags);
dbio_write_objid(o->owner);
dbio_write_objid(o->location);
dbio_write_objid(o->contents);
dbio_write_objid(o->next);
dbio_write_objid(o->parent);
dbio_write_objid(o->child);
dbio_write_objid(o->sibling);
for (v = o->verbdefs, nverbdefs = 0; v; v = v->next)
nverbdefs++;
dbio_write_num(nverbdefs);
for (v = o->verbdefs; v; v = v->next)
write_verbdef(v);
dbio_write_num(o->propdefs.cur_length);
for (i = 0; i < o->propdefs.cur_length; i++)
write_propdef(&o->propdefs.l[i]);
nprops = dbv4_count_properties(oid);
dbio_write_num(nprops);
for (i = 0; i < nprops; i++)
write_propval(o->propval + i);
}
static void
ng_write_object(Objid oid)
{
Object *o;
Verbdef *v;
int i;
int nverbdefs, nprops;
if (!valid(oid)) {
dbio_printf("#%d recycled\n", oid);
return;
}
o = dbpriv_find_object(oid);
dbio_printf("#%d\n", oid);
dbio_write_string(o->name);
dbio_write_num(o->flags);
dbio_write_objid(o->owner);
dbio_write_var(o->location);
dbio_write_var(o->contents);
dbio_write_var(o->parents);
dbio_write_var(o->children);
for (v = o->verbdefs, nverbdefs = 0; v; v = v->next)
nverbdefs++;
dbio_write_num(nverbdefs);
for (v = o->verbdefs; v; v = v->next)
write_verbdef(v);
dbio_write_num(o->propdefs.cur_length);
for (i = 0; i < o->propdefs.cur_length; i++)
write_propdef(&o->propdefs.l[i]);
nprops = o->nval;
dbio_write_num(nprops);
for (i = 0; i < nprops; i++)
write_propval(o->propval + i);
}
/*********** File-level Input ***********/
static int
v4_validate_hierarchies()
{
Objid oid, log_oid;
Objid size = dbv4_last_used_objid() + 1;
int broken = 0;
int fixed_nexts = 0;
oklog("VALIDATING the object hierarchies ...\n");
# define PROGRESS_INTERVAL 10000
# define MAYBE_LOG_PROGRESS \
{ \
if (oid == log_oid) { \
log_oid += PROGRESS_INTERVAL; \
oklog("VALIDATE: Done through #%d ...\n", oid); \
} \
}
oklog("VALIDATE: Phase 1: Check for invalid objects ...\n");
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object4 *o = dbv4_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
if (o->location == NOTHING && o->next != NOTHING) {
o->next = NOTHING;
fixed_nexts++;
}
# define CHECK(field, name) \
{ \
if (o->field != NOTHING \
&& !dbv4_find_object(o->field)) { \
errlog("VALIDATE: #%d.%s = #%d <invalid> ... fixed.\n", \
oid, name, o->field); \
o->field = NOTHING; \
} \
}
CHECK(parent, "parent");
CHECK(child, "child");
CHECK(sibling, "sibling");
CHECK(location, "location");
CHECK(contents, "contents");
CHECK(next, "next");
# undef CHECK
}
}
if (fixed_nexts != 0)
errlog("VALIDATE: Fixed %d should-be-null next pointer(s) ...\n",
fixed_nexts);
oklog("VALIDATE: Phase 2: Check for cycles ...\n");
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object4 *o = dbv4_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
# define CHECK(start, field, name) \
{ \
Objid oid2 = start; \
int count = 0; \
for (; oid2 != NOTHING \
; oid2 = dbv4_find_object(oid2)->field) { \
if (++count > size) { \
errlog("VALIDATE: Cycle in `%s' chain of #%d\n",\
name, oid); \
broken = 1; \
break; \
} \
} \
}
CHECK(o->parent, parent, "parent");
CHECK(o->child, sibling, "child");
CHECK(o->location, location, "location");
CHECK(o->contents, next, "contents");
# undef CHECK
}
}
if (broken) /* Can't continue if cycles found */
return 0;
oklog("VALIDATE: Phase 3: Check for inconsistencies ...\n");
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object4 *o = dbv4_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
# define CHECK(up, up_name, down, down_name, across) \
{ \
Objid up = o->up; \
Objid oid2; \
\
/* Is oid in its up's down list? */ \
if (up != NOTHING) { \
for (oid2 = dbv4_find_object(up)->down; \
oid2 != NOTHING; \
oid2 = dbv4_find_object(oid2)->across) { \
if (oid2 == oid) /* found it */ \
break; \
} \
if (oid2 == NOTHING) { /* didn't find it */ \
errlog("VALIDATE: #%d not in %s (#%d)'s %s list.\n", \
oid, up_name, up, down_name); \
broken = 1; \
} \
} \
}
CHECK(parent, "parent", child, "child", sibling);
CHECK(location, "location", contents, "contents", next);
# undef CHECK
# define CHECK(up, down, down_name, across) \
{ \
Objid oid2; \
\
for (oid2 = o->down; \
oid2 != NOTHING; \
oid2 = dbv4_find_object(oid2)->across) { \
if (dbv4_find_object(oid2)->up != oid) { \
errlog( \
"VALIDATE: #%d erroneously on #%d's %s list.\n", \
oid2, oid, down_name); \
broken = 1; \
} \
} \
}
CHECK(parent, child, "child", sibling);
CHECK(location, contents, "contents", next);
# undef CHECK
}
}
# undef PROGRESS_INTERVAL
# undef MAYBE_LOG_PROGRESS
oklog("VALIDATING the object hierarchies ... finished.\n");
return !broken;
}
static int
ng_validate_hierarchies()
{
Objid oid, log_oid;
Objid size = db_last_used_objid() + 1;
int i, c;
int broken = 0;
oklog("VALIDATING the object hierarchies ...\n");
# define PROGRESS_INTERVAL 10000
# define MAYBE_LOG_PROGRESS \
{ \
if (oid == log_oid) { \
log_oid += PROGRESS_INTERVAL; \
oklog("VALIDATE: Done through #%d ...\n", oid); \
} \
}
oklog("VALIDATE: Phase 1: Check for invalid objects ...\n");
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object *o = dbpriv_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
if (!is_obj_or_list_of_objs(o->parents)) {
errlog("VALIDATE: #%d.parents is not an object or list of objects.\n",
oid);
broken = 1;
}
if (!is_list_of_objs(o->children)) {
errlog("VALIDATE: #%d.children is not a list of objects.\n",
oid);
broken = 1;
}
if (!o->location.is_obj()) {
errlog("VALIDATE: #%d.location is not an object.\n",
oid);
broken = 1;
}
if (!is_list_of_objs(o->contents)) {
errlog("VALIDATE: #%d.contents is not a list of objects.\n",
oid);
broken = 1;
}
# define CHECK(field, name) \
{ \
if (TYPE_LIST == o->field.type) { \
Var tmp; \
FOR_EACH(tmp, o->field, i, c) { \
if (tmp.v.obj != NOTHING \
&& !dbpriv_find_object(tmp.v.obj)) { \
errlog("VALIDATE: #%d.%s = #%d <invalid> ... removed.\n", \
oid, name, tmp); \
o->field = setremove(o->field, tmp); \
} \
} \
} \
else { \
if (o->field.v.obj != NOTHING \
&& !dbpriv_find_object(o->field.v.obj)) { \
errlog("VALIDATE: #%d.%s = #%d <invalid> ... fixed.\n", \
oid, name, o->field.v.obj); \
o->field.v.obj = NOTHING; \
} \
} \
}
if (!broken) {
CHECK(parents, "parent");
CHECK(children, "child");
CHECK(location, "location");
CHECK(contents, "content");
}
# undef CHECK
}
}
if (broken) /* Can't continue if invalid objects found */
return 0;
oklog("VALIDATE: Phase 2: Check for cycles ...\n");
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object *o = dbpriv_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
# define CHECK(start, func, name) \
{ \
Var all = func(start, false); \
if (ismember(start, all, 1)) { \
errlog("VALIDATE: Cycle in %s chain of #%d.\n", \
name, oid); \
broken = 1; \
} \
free_var(all); \
}
CHECK(Var::new_obj(oid), db_ancestors, "parent");
CHECK(Var::new_obj(oid), db_all_locations, "location");
# undef CHECK
}
}
if (broken) /* Can't continue if cycles found */
return 0;
oklog("VALIDATE: Phase 3: Check for inconsistencies ...\n");
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object *o = dbpriv_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
# define CHECK(up, up_name, down, down_name) \
{ \
Var tmp, t1, t2, obj; \
obj.type = TYPE_OBJ; \
obj.v.obj = oid; \
t1 = enlist_var(var_ref(o->up)); \
FOR_EACH(tmp, t1, i, c) { \
if (tmp.v.obj != NOTHING) { \
Object *otmp = dbpriv_find_object(tmp.v.obj); \
t2 = enlist_var(var_ref(otmp->down)); \
if (ismember(obj, t2, 1)) { \
free_var(t2); \
continue; \
} \
else { \
errlog("VALIDATE: #%d not in it's %s's (#%d) %s.\n", \
oid, up_name, otmp->id, down_name); \
free_var(t2); \
broken = 1; \
break; \
} \
} \
} \
free_var(t1); \
}
CHECK(location, "location", contents, "contents");
CHECK(contents, "content", location, "location");
CHECK(parents, "parent", children, "children");
CHECK(children, "child", parents, "parents");
# undef CHECK
}
}
# undef PROGRESS_INTERVAL
# undef MAYBE_LOG_PROGRESS
oklog("VALIDATING the object hierarchies ... finished.\n");
return !broken;
}
static int
v4_upgrade_objects()
{
Objid oid, log_oid;
Objid size = dbv4_last_used_objid() + 1;
oklog("UPGRADING objects to new structure ...\n");
# define PROGRESS_INTERVAL 10000
# define MAYBE_LOG_PROGRESS \
{ \
if (oid == log_oid) { \
log_oid += PROGRESS_INTERVAL; \
oklog("UPGRADE: Done through #%d ...\n", oid); \
} \
}
for (oid = 0, log_oid = PROGRESS_INTERVAL; oid < size; oid++) {
Object4 *o = dbv4_find_object(oid);
MAYBE_LOG_PROGRESS;
if (o) {
Object *_new = dbpriv_new_object();
dbpriv_assign_nonce(_new);
_new->name = o->name;
_new->flags = o->flags;
_new->owner = o->owner;
Objid iter;
_new->parents = var_dup(Var::new_obj(o->parent));
_new->children = new_list(0);
for (iter = o->child; iter != NOTHING; iter = objects[iter]->sibling)
_new->children = listappend(_new->children, var_dup(Var::new_obj(iter)));
_new->location = var_dup(Var::new_obj(o->location));
_new->contents = new_list(0);
for (iter = o->contents; iter != NOTHING; iter = objects[iter]->next)
_new->contents = listappend(_new->contents, var_dup(Var::new_obj(iter)));
_new->propval = o->propval;
_new->nval = dbv4_count_properties(oid);
_new->verbdefs = o->verbdefs;
_new->propdefs = o->propdefs;
}
else {
dbpriv_new_recycled_object();
}
}
# undef PROGRESS_INTERVAL
# undef MAYBE_LOG_PROGRESS
for (oid = 0; oid < size; oid++) {
if (objects[oid]) {
myfree(objects[oid], M_OBJECT);
objects[oid] = 0;
}
}
num_objects = 0;
max_objects = 0;
myfree(objects, M_OBJECT_TABLE);
oklog("UPGRADING objects to new structure ... finished.\n");
return 1;
}
static const char *
fmt_verb_name(void *data)
{
db_verb_handle *h = (db_verb_handle *)data;
static Stream *s = 0;
if (!s)
s = new_stream(40);
unparse_value(s, db_verb_definer(*h));
stream_printf(s, ":%s", db_verb_names(*h));
return reset_stream(s);
}
static int
read_db_file(void)
{
Objid oid;
int nobjs, nprogs, nusers;
Var user_list;
int i, vnum, dummy;
db_verb_handle h;
Program *program;
if (dbio_scanf(header_format_string, &dbio_input_version) != 1)
dbio_input_version = DBV_Prehistory;
if (!check_db_version(dbio_input_version)) {
errlog("READ_DB_FILE: Unknown DB version number: %d\n",
dbio_input_version);
return 0;
}
/* I use a `dummy' variable here and elsewhere instead of the `*'
* assignment-suppression syntax of `scanf' because it allows more
* straightforward error checking; unfortunately, the standard
* says that suppressed assignments are not counted in determining
* the returned value of `scanf'...
*/
if (DBV_Anon > dbio_input_version) {
if (dbio_scanf("%d\n%d\n%d\n%d\n",
&nobjs, &nprogs, &dummy, &nusers) != 4) {
errlog("READ_DB_FILE: Bad header\n");
return 0;
}
}
else {
if (dbio_scanf("%d\n", &nusers) != 1) {
errlog("READ_DB_FILE: Bad number of users\n");
return 0;
}
}
user_list = new_list(nusers);
for (i = 1; i <= nusers; i++) {
user_list.v.list[i].type = TYPE_OBJ;
user_list.v.list[i].v.obj = dbio_read_objid();
}
dbpriv_set_all_users(user_list);
if (DBV_Anon <= dbio_input_version) {
oklog("LOADING: Reading values pending finalization ...\n");
if (!read_values_pending_finalization()) {
errlog("READ_DB_FILE: Can't read values pending finalization.\n");
return 0;
}
}
if (DBV_Anon <= dbio_input_version) {
oklog("LOADING: Reading forked and suspended tasks ...\n");
if (!read_task_queue()) {
errlog("READ_DB_FILE: Can't read task queue.\n");
return 0;
}
oklog("LOADING: Reading list of formerly active connections ...\n");
if (!read_active_connections()) {
errlog("DB_READ: Can't read active connections.\n");
return 0;
}
}
/* First, read the permanent objects. Then, read successive
* iterations of anonymous objects.
*/
if (DBV_Anon <= dbio_input_version) {
if (dbio_scanf("%d\n", &nobjs) != 1) {
errlog("READ_DB_FILE: Bad object count\n");
return 0;
}
}
oklog("LOADING: Reading %d objects ...\n", nobjs);
for (i = 1; i <= nobjs; i++) {
if (DBV_NextGen > dbio_input_version) {
if (!v4_read_object()) {
errlog("READ_DB_FILE: Bad object #%d.\n", i - 1);
return 0;
}
}
else {
if (!ng_read_object(0)) {
errlog("READ_DB_FILE: Bad object #%d.\n", i - 1);
return 0;
}
}
if (i % 10000 == 0 || i == nobjs)
oklog("LOADING: Done reading %d objects ...\n", i);
}
if (DBV_Anon <= dbio_input_version) {
while (1) {
if (dbio_scanf("%d\n", &nobjs) != 1) {
errlog("READ_DB_FILE: Bad object count header\n");
return 0;
}
if (!nobjs)
break;
oklog("LOADING: Reading %d objects ...\n", nobjs);
for (i = 1; i <= nobjs; i++) {
if (!ng_read_object(1)) {
errlog("READ_DB_FILE: Bad object #%d.\n", i - 1);
return 0;
}
if (i % 10000 == 0 || i == nobjs)
oklog("LOADING: Done reading %d objects ...\n", i);
}
}
}
if (DBV_NextGen > dbio_input_version) {
if (!v4_validate_hierarchies()) {
errlog("READ_DB_FILE: Errors in object hierarchies.\n");
return 0;
}
}
else {
if (!ng_validate_hierarchies()) {
errlog("READ_DB_FILE: Errors in object hierarchies.\n");
return 0;
}
}
if (DBV_NextGen > dbio_input_version) {
if (!v4_upgrade_objects()) {
errlog("READ_DB_FILE: Errors upgrading objects.\n");
return 0;
}
}