From: Jon Burgess <redacted>
Date: Sat, 13 Oct 2018 21:26:25 +0000 (+0100)
Subject: Expose length of valid data in segment chunk
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=50e56db003055e96c5a12e675889e4afad07b65c

Expose length of valid data in segment chunk
---

diff --git a/pv/data/segment.cpp b/pv/data/segment.cpp
index 6ea17ff6..ef555292 100644
--- a/pv/data/segment.cpp
+++ b/pv/data/segment.cpp
@@ -289,5 +289,13 @@ uint8_t* Segment::get_iterator_value(SegmentDataIterator* it)
 	return (it->chunk + it->chunk_offs);
 }
 
+uint64_t Segment::get_iterator_valid_length(SegmentDataIterator* it)
+{
+	assert(it->sample_index <= (sample_count_ - 1));
+
+	return ((chunk_size_ - it->chunk_offs) / unit_size_);
+}
+
+
 } // namespace data
 } // namespace pv
diff --git a/pv/data/segment.hpp b/pv/data/segment.hpp
index 4c6c36af..f5a00c95 100644
--- a/pv/data/segment.hpp
+++ b/pv/data/segment.hpp
@@ -90,6 +90,7 @@ protected:
 	void continue_sample_iteration(SegmentDataIterator* it, uint64_t increase);
 	void end_sample_iteration(SegmentDataIterator* it);
 	uint8_t* get_iterator_value(SegmentDataIterator* it);
+	uint64_t get_iterator_valid_length(SegmentDataIterator* it);
 
 	uint32_t segment_id_;
 	mutable recursive_mutex mutex_;