Rename frag_adder_size

This patch renames following variables and functions:

- frag_adder_size -> frag_backend_metadata_size
- set_fragment_adder_size() -> set_fragment_backend_metadata_size()
- get_fragment_adder_size() -> get_fragment_backend_metadata_size()

2 files changed, 5 insertions, 4 deletions

diff --git a/include/erasurecode/erasurecode.h b/include/erasurecode/erasurecode.h
index 7f78b55..4604c2a 100644
--- a/include/erasurecode/erasurecode.h
+++ b/include/erasurecode/erasurecode.h
@@ -247,7 +247,7 @@ fragment_metadata
 {
     uint32_t    idx;                /* 4 */
     uint32_t    size;               /* 4 */
-    uint32_t    frag_adder_size;    /* 4 */
+    uint32_t    frag_backend_metadata_size;    /* 4 */
     uint64_t    orig_data_size;     /* 8 */
     uint8_t     chksum_type;        /* 1 */
     uint32_t    chksum[LIBERASURECODE_MAX_CHECKSUM_LEN]; /* 32 */
@@ -336,7 +336,8 @@ int liberasurecode_get_minimum_encode_size(int desc);
  *        from liberasurecode_instance_create()
  * @param data_len - original data length in bytes
  *
- * @return fragment size - sizeof(fragment_header) + size + frag_adder_size
+ * @return fragment size - sizeof(fragment_header) + size
+ *                         + frag_backend_metadata_size
  */
 int liberasurecode_get_fragment_size(int desc, int data_len);
 
diff --git a/include/erasurecode/erasurecode_helpers.h b/include/erasurecode/erasurecode_helpers.h
index f7eefd7..33b26bd 100644
--- a/include/erasurecode/erasurecode_helpers.h
+++ b/include/erasurecode/erasurecode_helpers.h
@@ -135,8 +135,8 @@ int set_fragment_idx(char *buf, int idx);
 int get_fragment_idx(char *buf);
 int set_fragment_payload_size(char *buf, int size);
 int get_fragment_payload_size(char *buf);
-int set_fragment_adder_size(char *buf, int size);
-int get_fragment_adder_size(char *buf);
+int set_fragment_backend_metadata_size(char *buf, int size);
+int get_fragment_backend_metadata_size(char *buf);
 int get_fragment_buffer_size(char *buf);
 int set_orig_data_size(char *buf, int orig_data_size);
 int get_orig_data_size(char *buf);