From a700befec984d1e2d4d75cbafac2705d856a6cba Mon Sep 17 00:00:00 2001
From: Martin Pulec <martin.pulec@cesnet.cz>
Date: Thu, 31 Oct 2019 09:22:48 +0100
Subject: [PATCH] Module: function to get path

---
 src/module.c | 27 +++++++++++++++++++++++++++
 src/module.h |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/src/module.c b/src/module.c
index f230e4ace..7378d2fa5 100644
--- a/src/module.c
+++ b/src/module.c
@@ -325,3 +325,30 @@ void dump_tree(struct module *node, int indent) {
         }
 }
 
+/**
+ * Gets textual representation of path from root to module.
+ *
+ * Currently only simple paths are created (class names only)
+ */
+bool module_get_path_str(struct module *mod, char *buf, size_t buflen) {
+        assert(buflen > 0);
+        buf[0] = '\0';
+
+        while (mod) {
+                const char *cur_name = module_class_name(mod->cls);
+                if (sizeof(buf) + 1 + sizeof(cur_name) >= buflen) {
+                        return false;
+                }
+                if (strlen(buf) > 0) {
+                        memmove(buf + strlen(cur_name) + 1, buf, strlen(buf) + 1);
+                        buf[strlen(cur_name)] = '.';
+                } else {
+                        buf[strlen(cur_name)] = '\0';
+                }
+                memcpy(buf, cur_name, strlen(cur_name));
+                mod = mod->parent;
+        }
+
+        return true;
+}
+
diff --git a/src/module.h b/src/module.h
index 55ca9394f..41fee5ade 100644
--- a/src/module.h
+++ b/src/module.h
@@ -146,6 +146,8 @@ void module_register(struct module *module_data, struct module *parent);
 void module_done(struct module *module_data);
 const char *module_class_name(enum module_class cls);
 void append_message_path(char *buf, int buflen, enum module_class modules[]);
+bool module_get_path_str(struct module *mod, char *buf, size_t buflen);
+
 /**
  * @retval NULL if not found
  * @retval non-NULL pointer to the module