context metadata cleanup

src/common/context.c

@@ -254,3 +254,13 @@ void printConfig(FILE *outFile) {
     }
   }
 }
+
+void freeContextMetadata(void) {
+  struct context_metadata *s;
+  while (ctx.metaMap != NULL) {
+    s = ctx.metaMap;
+    HASH_DEL(ctx.metaMap, s);  // NOLINT
+    free(s);
+  }
+  HASH_CLEAR(hh, ctx.metaMap);
+}

src/common/context.h

@@ -93,6 +93,15 @@ void createContextMetadata(const char *name, const char *printName,
                            context_source_t source, context_type_t type,
                            void *value, int isFlag);
 
+/*!
+ * Free all context metadata allocated during initContext()
+ *
+ * Iterates through ctx.metaMap hash table and frees all allocated
+ * context_metadata structures.  Should be called during program
+ * cleanup.
+ */
+void freeContextMetadata(void);
+
 void updateIntContext(const char *name, int value, context_source_t source);
 
 void updateCharContext(const char *name, const char *value,

src/sipnet/sipnet.c

@@ -1974,4 +1974,6 @@ void cleanupModel() {
     freeEventList();
     closeEventOutFile();
   }
+
+  freeContextMetadata();
 }