logicsegment.cpp: Constify a few variables.

diff --git a/pv/data/logicsegment.cpp b/pv/data/logicsegment.cpp
index 5d6faf8f8fe1a5333f8130cfcb17725db99a07ab..1bbd8d7cf0e7c40255ce13ae21d7211cafc550d6 100644 (file)
--- a/pv/data/logicsegment.cpp
+++ b/pv/data/logicsegment.cpp
@@ -153,8 +153,8 @@ void LogicSegment::append_payload(void *data, uint64_t data_size)
 
        lock_guard<recursive_mutex> lock(mutex_);
 
-       uint64_t prev_sample_count = sample_count_;
-       uint64_t sample_count = data_size / unit_size_;
+       const uint64_t prev_sample_count = sample_count_;
+       const uint64_t sample_count = data_size / unit_size_;
 
        append_samples(data, sample_count);
 
@@ -237,8 +237,8 @@ void LogicSegment::append_payload_to_mipmap()
        dest_ptr = (uint8_t*)m0.data + prev_length * unit_size_;
 
        // Iterate through the samples to populate the first level mipmap
-       uint64_t start_sample = prev_length * MipMapScaleFactor;
-       uint64_t end_sample = m0.length * MipMapScaleFactor;
+       const uint64_t start_sample = prev_length * MipMapScaleFactor;
+       const uint64_t end_sample = m0.length * MipMapScaleFactor;
 
        it = begin_raw_sample_iteration(start_sample);
        for (uint64_t i = start_sample; i < end_sample;) {
@@ -303,9 +303,8 @@ uint64_t LogicSegment::get_unpacked_sample(uint64_t index) const
        uint8_t data[8];
 
        get_raw_samples(index, 1, data);
-       uint64_t sample = unpack_sample(data);
 
-       return sample;
+       return unpack_sample(data);
 }
 
 void LogicSegment::get_subsampled_edges(