From 30e4b27516a1426c0c4492fb7ae771cfcaf41ee8 Mon Sep 17 00:00:00 2001
From: sparky8512 <76499194+sparky8512@users.noreply.github.com>
Date: Sun, 14 Feb 2021 13:47:24 -0800
Subject: [PATCH] Fix handling of 0 history samples range

This can happen when polling the history buffer very frequently (<= 1 second).
---
 starlink_grpc.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/starlink_grpc.py b/starlink_grpc.py
index d019aa7..78aeb3f 100644
--- a/starlink_grpc.py
+++ b/starlink_grpc.py
@@ -765,6 +765,9 @@ def _compute_sample_range(history, parse_samples, start=None, verbose=False):
     if start is None or start < current - parse_samples:
         start = current - parse_samples
 
+    if start == current:
+        return range(0), 0, current
+
     # This is ring buffer offset, so both index to oldest data sample and
     # index to next data sample after the newest one.
     end_offset = current % samples