added firstkey(), nextkey(), reorganize() methods

This commit is contained in:
Guido van Rossum 1995-03-16 16:07:34 +00:00
parent 13c503e93b
commit fbd30e9159
1 changed files with 64 additions and 0 deletions

View File

@ -209,9 +209,73 @@ dbm_has_key(dp, args)
return newintobject((long) gdbm_exists(dp->di_dbm, key));
}
static object *
dbm_firstkey(dp, args)
register dbmobject *dp;
object *args;
{
register object *v;
datum key;
if (!getnoarg(args))
return NULL;
key = gdbm_firstkey(dp->di_dbm);
if (key.dptr) {
v = newsizedstringobject(key.dptr, key.dsize);
free(key.dptr);
return v;
} else {
INCREF(None);
return None;
}
}
static object *
dbm_nextkey(dp, args)
register dbmobject *dp;
object *args;
{
register object *v;
datum key, nextkey;
if (!getargs(args, "s#", &key.dptr, &key.dsize))
return NULL;
nextkey = gdbm_nextkey(dp->di_dbm, key);
if (nextkey.dptr) {
v = newsizedstringobject(nextkey.dptr, nextkey.dsize);
free(nextkey.dptr);
return v;
} else {
INCREF(None);
return None;
}
}
static object *
dbm_reorganize(dp, args)
register dbmobject *dp;
object *args;
{
if (!getnoarg(args))
return NULL;
errno = 0;
if (gdbm_reorganize(dp->di_dbm) < 0) {
if (errno != 0)
err_errno(DbmError);
else
err_setstr(DbmError, (char *) gdbm_strerror(gdbm_errno));
return NULL;
}
INCREF(None);
return None;
}
static struct methodlist dbm_methods[] = {
{"keys", (method)dbm_keys},
{"has_key", (method)dbm_has_key},
{"firstkey", (method)dbm_firstkey},
{"nextkey", (method)dbm_nextkey},
{"reorganize", (method)dbm_reorganize},
{NULL, NULL} /* sentinel */
};