From aac897f2337471637d9a47b38e1b7b35ab0359b5 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Sat, 14 Aug 2004 15:15:53 +0000
Subject: [PATCH] Added obj_find_anum() which is obj_find_aval() combined with
 atol() and a default value (this is a very common idiom at many places).

Added size_attr() which calculates size of a given attribute in the
current bucket format.
---
 lib/obj2buck.c | 13 +++++++++++++
 lib/object.c   |  8 ++++++++
 lib/object.h   |  3 +++
 3 files changed, 24 insertions(+)

diff --git a/lib/obj2buck.c b/lib/obj2buck.c
index 367764a5..6cd25896 100644
--- a/lib/obj2buck.c
+++ b/lib/obj2buck.c
@@ -42,6 +42,19 @@ attr_set_type(uns type)
     }
 }
 
+uns
+size_attr(uns len)
+{
+  ASSERT(len <= MAX_ATTR_SIZE);
+  if (use_v33)
+    {
+      len++;
+      return len + utf8_space(len);
+    }
+  else
+    return len + 2;
+}
+
 inline byte *
 put_attr(byte *ptr, uns type, byte *val, uns len)
 {
diff --git a/lib/object.c b/lib/object.c
index ab882c12..6a2a90c5 100644
--- a/lib/object.c
+++ b/lib/object.c
@@ -15,6 +15,7 @@
 
 #include <string.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 void
 obj_dump(struct odes *o)
@@ -117,6 +118,13 @@ obj_find_aval(struct odes *o, uns x)
   return a ? a->val : NULL;
 }
 
+uns
+obj_find_anum(struct odes *o, uns x, uns def)
+{
+  struct oattr *a = obj_find_attr(o, x);
+  return a ? (uns)atol(a->val) : def;
+}
+
 struct oattr *
 obj_set_attr(struct odes *o, uns x, byte *v)
 {
diff --git a/lib/object.h b/lib/object.h
index 01c47dfb..c889953b 100644
--- a/lib/object.h
+++ b/lib/object.h
@@ -34,6 +34,7 @@ struct oattr *obj_find_attr(struct odes *, uns);
 struct oattr *obj_find_attr_last(struct odes *, uns);
 uns obj_del_attr(struct odes *, struct oattr *);
 byte *obj_find_aval(struct odes *, uns);
+uns obj_find_anum(struct odes *, uns, uns);
 struct oattr *obj_set_attr(struct odes *, uns, byte *);
 struct oattr *obj_set_attr_num(struct odes *, uns, uns);
 struct oattr *obj_add_attr(struct odes *, uns, byte *);
@@ -65,6 +66,8 @@ int obj_read(struct fastbuf *, struct odes *);
 
 void attr_set_type(uns type);
 
+uns size_attr(uns len);
+
 byte *put_attr(byte *ptr, uns type, byte *val, uns len);
 byte *put_attr_str(byte *ptr, uns type, byte *val);
 byte *put_attr_vformat(byte *ptr, uns type, byte *mask, va_list va);
-- 
2.39.2