Trivial refactor

Ref #28

src/fellow_log.c

@@ -2187,6 +2187,19 @@ logbuffer_alloc_some(const struct fellow_logbuffer *lbuf,
 	}
 }
 
+static void
+logbuffer_alloc(struct fellow_logbuffer *lbuf)
+{
+	CHECK_OBJ_NOTNULL(lbuf, FELLOW_LOGBUFFER_MAGIC);
+
+	if (lbuf->head.off == 0)
+		logbuffer_alloc_some(lbuf, &lbuf->head, 1);
+	if (lbuf->n > 0)
+		logbuffer_alloc_some(lbuf, lbuf->arr, lbuf->n);
+	if (lbuf->active.off == 0)
+		logbuffer_alloc_some(lbuf, &lbuf->active, 1);
+}
+
 static void
 logbuffer_ref(struct fellow_fd *ffd, const struct fellow_logbuffer *lbuf)
 {
@@ -2413,14 +2426,9 @@ logbuffer_flush(struct fellow_fd *ffd,
 	assert(lbuf->active.block != lbuf->head.block);
 
 	/* alloc blocks for all lofbuffer blocks */
-	if (cap(can, LBUF_CAN_FLUSH)) {
-		if (lbuf->head.off == 0)
-			logbuffer_alloc_some(lbuf, &lbuf->head, 1);
-		if (lbuf->n > 0)
-			logbuffer_alloc_some(lbuf, lbuf->arr, lbuf->n);
-		if (lbuf->active.off == 0)
-			logbuffer_alloc_some(lbuf, &lbuf->active, 1);
-	} else {
+	if (cap(can, LBUF_CAN_FLUSH))
+		logbuffer_alloc(lbuf);
+	else {
 		/* we transition to LBUF_MEM when logregion is full */
 		assert(cap(can, LBUF_CAN_LOGREG));
 		assert(lbuf->state == LBUF_LOGREG);