[tor-commits] [tor/master] Document configuration type definition functions for routerset_t

[asn@xxxxxxxxxxxxxx]

commit f0c1f96adcc049c49f7784645a5b197c8b3e44af
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Wed Aug 28 12:23:36 2019 -0400

    Document configuration type definition functions for routerset_t
    
    These functions are all used to implement the ROUTERSET_type_defn
    object, which maps strings to and from routerset_t configuration
    variables for the configuration module.
---
 src/feature/nodelist/routerset.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/src/feature/nodelist/routerset.c b/src/feature/nodelist/routerset.c
index 12965ad0d..0b8916780 100644
--- a/src/feature/nodelist/routerset.c
+++ b/src/feature/nodelist/routerset.c
@@ -466,6 +466,13 @@ routerset_free_(routerset_t *routerset)
   tor_free(routerset);
 }
 
+/**
+ * config helper: parse a routerset-typed variable.
+ *
+ * Takes as input as a single line in <b>line</b>; writes its results into a
+ * routerset_t** passed as <b>target</b>.  On success return 0; on failure
+ * return -1 and store an error message into *<b>errmsg</b>.
+ **/
 static int
 routerset_kv_parse(void *target, const config_line_t *line, char **errmsg,
                   const void *params)
@@ -488,6 +495,12 @@ routerset_kv_parse(void *target, const config_line_t *line, char **errmsg,
   }
 }
 
+/**
+ * config helper: encode a routerset-typed variable.
+ *
+ * Return a newly allocated string containing the value of the
+ * routerset_t** passed as <b>value</b>.
+ */
 static char *
 routerset_encode(const void *value, const void *params)
 {
@@ -496,6 +509,11 @@ routerset_encode(const void *value, const void *params)
   return routerset_to_string(*p);
 }
 
+/**
+ * config helper: free and clear a routerset-typed variable.
+ *
+ * Clear the routerset_t** passed as <b>value</b>.
+ */
 static void
 routerset_clear(void *value, const void *params)
 {
@@ -504,6 +522,13 @@ routerset_clear(void *value, const void *params)
   routerset_free(*p); // sets *p to NULL.
 }
 
+/**
+ * config helper: copy a routerset-typed variable.
+ *
+ * Takes it input from a routerset_t** in <b>src</b>; writes its output to a
+ * routerset_t** in <b>dest</b>.  Returns 0 on success, -1 on (impossible)
+ * failure.
+ **/
 static int
 routerset_copy(void *dest, const void *src, const void *params)
 {
@@ -518,6 +543,9 @@ routerset_copy(void *dest, const void *src, const void *params)
   return 0;
 }
 
+/**
+ * Function table to implement a routerset_t-based configuration type.
+ **/
 static const var_type_fns_t routerset_type_fns = {
   .kv_parse = routerset_kv_parse,
   .encode = routerset_encode,
@@ -525,6 +553,15 @@ static const var_type_fns_t routerset_type_fns = {
   .copy = routerset_copy
 };
 
+/**
+ * Definition of a routerset_t-based configuration type.
+ *
+ * Values are mapped to and from strings using the format defined in
+ * routerset_parse(): nicknames, IP address patterns, and fingerprints--with
+ * optional space, separated by commas.
+ *
+ * Empty sets are represented as NULL.
+ **/
 const var_type_def_t ROUTERSET_type_defn = {
   .name = "RouterList",
   .fns = &routerset_type_fns



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