plugins types FEATURE add value sorting callback

Unused for now.
Refs #1547

Author: michalvasko

src/plugins_types.h

@@ -472,6 +472,17 @@ typedef LY_ERR (*lyplg_type_validate_clb)(const struct ly_ctx *ctx, const struct
  */
 typedef LY_ERR (*lyplg_type_compare_clb)(const struct lyd_value *val1, const struct lyd_value *val2);
 
+/**
+ * @brief Unused callback for sorting values.
+ *
+ * @param[in] val1 First value to compare.
+ * @param[in] val2 Second value to compare.
+ * @return -1 if val1 < val2,
+ * @return 0 if val1 == val2,
+ * @return 1 if val1 > val2.
+ */
+typedef int (*lyplg_type_sort_clb)(const struct lyd_value *val1, const struct lyd_value *val2);
+
 /**
  * @brief Callback for getting the value of the data stored in @p value.
  *
@@ -530,6 +541,7 @@ struct lyplg_type {
     lyplg_type_store_clb store;         /**< store and canonize the value in the type-specific way */
     lyplg_type_validate_clb validate;   /**< optional, validate the value in the type-specific way in data */
     lyplg_type_compare_clb compare;     /**< comparison callback to compare 2 values of the same type */
+    lyplg_type_sort_clb sort;           /**< unused comparison callback for sorting values */
     lyplg_type_print_clb print;         /**< printer callback to get string representing the value */
     lyplg_type_dup_clb duplicate;       /**< data duplication callback */
     lyplg_type_free_clb free;           /**< optional function to free the type-spceific way stored value */

src/plugins_types/binary.c

@@ -393,6 +393,7 @@ const struct lyplg_type_record plugins_binary[] = {
         .plugin.store = lyplg_type_store_binary,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_binary,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_binary,
         .plugin.duplicate = lyplg_type_dup_binary,
         .plugin.free = lyplg_type_free_binary,

src/plugins_types/bits.c

@@ -501,6 +501,7 @@ const struct lyplg_type_record plugins_bits[] = {
         .plugin.store = lyplg_type_store_bits,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_bits,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_bits,
         .plugin.duplicate = lyplg_type_dup_bits,
         .plugin.free = lyplg_type_free_bits

src/plugins_types/boolean.c

@@ -157,6 +157,7 @@ const struct lyplg_type_record plugins_boolean[] = {
         .plugin.store = lyplg_type_store_boolean,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_boolean,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_boolean,
         .plugin.duplicate = lyplg_type_dup_simple,
         .plugin.free = lyplg_type_free_simple

src/plugins_types/date_and_time.c

@@ -418,6 +418,7 @@ const struct lyplg_type_record plugins_date_and_time[] = {
         .plugin.store = lyplg_type_store_date_and_time,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_date_and_time,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_date_and_time,
         .plugin.duplicate = lyplg_type_dup_date_and_time,
         .plugin.free = lyplg_type_free_date_and_time

src/plugins_types/decimal64.c

@@ -212,6 +212,7 @@ const struct lyplg_type_record plugins_decimal64[] = {
         .plugin.store = lyplg_type_store_decimal64,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_decimal64,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_decimal64,
         .plugin.duplicate = lyplg_type_dup_simple,
         .plugin.free = lyplg_type_free_simple

src/plugins_types/empty.c

@@ -94,6 +94,7 @@ const struct lyplg_type_record plugins_empty[] = {
         .plugin.store = lyplg_type_store_empty,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_simple,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_simple,
         .plugin.duplicate = lyplg_type_dup_simple,
         .plugin.free = lyplg_type_free_simple

src/plugins_types/enumeration.c

@@ -155,6 +155,7 @@ const struct lyplg_type_record plugins_enumeration[] = {
         .plugin.store = lyplg_type_store_enum,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_simple,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_enum,
         .plugin.duplicate = lyplg_type_dup_simple,
         .plugin.free = lyplg_type_free_simple

src/plugins_types/identityref.c

@@ -310,6 +310,7 @@ const struct lyplg_type_record plugins_identityref[] = {
         .plugin.store = lyplg_type_store_identityref,
         .plugin.validate = NULL,
         .plugin.compare = lyplg_type_compare_identityref,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_identityref,
         .plugin.duplicate = lyplg_type_dup_simple,
         .plugin.free = lyplg_type_free_simple

src/plugins_types/instanceid.c

@@ -360,6 +360,7 @@ const struct lyplg_type_record plugins_instanceid[] = {
         .plugin.store = lyplg_type_store_instanceid,
         .plugin.validate = lyplg_type_validate_instanceid,
         .plugin.compare = lyplg_type_compare_instanceid,
+        .plugin.sort = NULL,
         .plugin.print = lyplg_type_print_instanceid,
         .plugin.duplicate = lyplg_type_dup_instanceid,
         .plugin.free = lyplg_type_free_instanceid