From a4349b13df5d1bd72def65143970e5ffc4ce75f6 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Tue, 19 Jul 2022 16:02:38 +0200
Subject: [PATCH] samplefilt: add function to get maximum number of samples

---
 samplefilt.c           | 8 ++++++++
 samplefilt.h           | 1 +
 test/unit/samplefilt.c | 2 ++
 3 files changed, 11 insertions(+)

diff --git a/samplefilt.c b/samplefilt.c
index c3ee8b3..6b06130 100644
--- a/samplefilt.c
+++ b/samplefilt.c
@@ -162,6 +162,14 @@ SPF_GetNumberOfSamples(SPF_Instance filter)
 
 /* ================================================== */
 
+int
+SPF_GetMaxSamples(SPF_Instance filter)
+{
+  return filter->max_samples;
+}
+
+/* ================================================== */
+
 double
 SPF_GetAvgSampleDispersion(SPF_Instance filter)
 {
diff --git a/samplefilt.h b/samplefilt.h
index e55a776..8d72b85 100644
--- a/samplefilt.h
+++ b/samplefilt.h
@@ -39,6 +39,7 @@ extern void SPF_DestroyInstance(SPF_Instance filter);
 extern int SPF_AccumulateSample(SPF_Instance filter, NTP_Sample *sample);
 extern int SPF_GetLastSample(SPF_Instance filter, NTP_Sample *sample);
 extern int SPF_GetNumberOfSamples(SPF_Instance filter);
+extern int SPF_GetMaxSamples(SPF_Instance filter);
 extern double SPF_GetAvgSampleDispersion(SPF_Instance filter);
 extern void SPF_DropSamples(SPF_Instance filter);
 extern int SPF_GetFilteredSample(SPF_Instance filter, NTP_Sample *sample);
diff --git a/test/unit/samplefilt.c b/test/unit/samplefilt.c
index 22df125..19d2f70 100644
--- a/test/unit/samplefilt.c
+++ b/test/unit/samplefilt.c
@@ -45,6 +45,8 @@ test_unit(void)
 
     filter = SPF_CreateInstance(min_samples, max_samples, 2.0, combine_ratio);
 
+    TEST_CHECK(max_samples == SPF_GetMaxSamples(filter));
+
     for (j = 0, sum_count = 0, sum_err = 0.0; j < 100; j++) {
       DEBUG_LOG("iteration %d/%d", i, j);