1 files changed, 11 insertions, 8 deletions
diff --git a/src/tbf.h b/src/tbf.h
index 9a9765c..f01ba61 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -61,20 +61,23 @@ enum { CHILD_LEFT, CHILD_RIGHT };
 #define FL_CHILD_LEFT  0x1
 #define FL_CHILD_RIGHT 0x2
 
-enum { NST_INCOMPLETE, NST_INIT };
+enum node_status { NST_INCOMPLETE, NST_INIT };
 
 struct node {
 	uint8_t key[SHA256_LEN];
 #ifdef DEBUG
 	char *keystr;
 #endif
-	struct node *parent;
-	struct node *child[2];
-	struct node *prev, *next;
-	pthread_cond_t notbusy;
-	int busy:1;
-	int status;
-	uint32_t ord;
+	struct node *parent;        /* Parent node */
+	struct node *child[2];      /* Left and right child nodes */
+	struct node *prev, *next;   /* More (prev) and less (next) recently
+				       updated nodes. */
+	pthread_cond_t notbusy;     /* Prevent simultaneous updates */
+	int busy:1;                 /* Node is in use if 1 */
+	enum node_status status;    /* Node status */
+	uint32_t ord;        /* Used when dumping nodes and computing tree
+				stats */
+	/* Actual TBF payload: */
 	uint64_t timestamp;  /* microseconds since epoch */
 	size_t tokens;       /* tokens available */
 };