From eda56fd465e5a577e75e02bb78d18793144ddf0d Mon Sep 17 00:00:00 2001
From: "matthias.ringwald"
 <matthias.ringwald@1a0a8af8-31b5-11de-8e0c-53a27eea117e>
Date: Fri, 5 Aug 2011 20:40:47 +0000
Subject: [PATCH] added spd_get_filtered_size to get sum of attributes matching
 attribute list

---
 include/btstack/sdp_util.h |  3 ++-
 src/sdp_util.c             | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/include/btstack/sdp_util.h b/include/btstack/sdp_util.h
index f1d14c68b..f22db24a1 100644
--- a/include/btstack/sdp_util.h
+++ b/include/btstack/sdp_util.h
@@ -125,8 +125,9 @@ int de_get_data_size(uint8_t * header);
 // MARK: SDP
 int sdp_append_attributes_in_attributeIDList(uint8_t *record, uint8_t *attributeIDList, uint16_t startIndex, uint16_t maxBytes, uint8_t *buffer);
 uint8_t * sdp_get_attribute_value_for_attribute_id(uint8_t * record, uint16_t attributeID);
-    uint8_t sdp_set_attribute_value_for_attribute_id(uint8_t * record, uint16_t attributeID, uint32_t value);
+uint8_t sdp_set_attribute_value_for_attribute_id(uint8_t * record, uint16_t attributeID, uint32_t value);
 int sdp_record_matches_service_search_pattern(uint8_t *record, uint8_t *serviceSearchPattern);
+int spd_get_filtered_size(uint8_t *record, uint8_t *attributeIDList);
 
 #if defined __cplusplus
 }
diff --git a/src/sdp_util.c b/src/sdp_util.c
index 15e680350..e6a36fcdd 100644
--- a/src/sdp_util.c
+++ b/src/sdp_util.c
@@ -348,6 +348,28 @@ int sdp_append_attributes_in_attributeIDList(uint8_t *record, uint8_t *attribute
     return -1;
 }
 
+// MARK: Get sum of attributes matching attribute list
+struct sdp_context_get_filtered_size {
+    uint8_t *attributeIDList;
+    uint16_t size;
+};
+
+static int sdp_traversal_get_filtered_size(uint16_t attributeID, uint8_t * attributeValue, de_type_t type, de_size_t size, void *my_context){
+    struct sdp_context_get_filtered_size * context = (struct sdp_context_get_filtered_size *) my_context;
+    if (sdp_attribute_list_constains_id(context->attributeIDList, attributeID)) {
+        context->size += size;
+    }
+    return 0;
+}
+
+int spd_get_filtered_size(uint8_t *record, uint8_t *attributeIDList){
+    struct sdp_context_get_filtered_size context;
+    context.size = 0;
+    context.attributeIDList = attributeIDList;
+    sdp_attribute_list_traverse_sequence(record, sdp_traversal_get_filtered_size, &context);
+    return context.size;
+}
+
 // MARK: Get AttributeValue for AttributeID
 // find attribute (ELEMENT) by ID
 struct sdp_context_attribute_by_id {