X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=pv%2Fdata%2Flogicsegment.hpp;h=2b67c0edb81ddad6165597499bf4d704d185a483;hb=04b0467582d8dfa989bb38fe18bfb1be20cea456;hp=67959b31ec17e402bca93466249355fd60cc5ea4;hpb=0df28cd5a727c5e4ff2c46e3258b76936bc0c33d;p=pulseview.git

diff --git a/pv/data/logicsegment.hpp b/pv/data/logicsegment.hpp
index 67959b31..2b67c0ed 100644
--- a/pv/data/logicsegment.hpp
+++ b/pv/data/logicsegment.hpp
@@ -22,11 +22,11 @@
 
 #include "segment.hpp"
 
-#include <utility>
 #include <vector>
 
 #include <QObject>
 
+using std::enable_shared_from_this;
 using std::pair;
 using std::shared_ptr;
 using std::vector;
@@ -48,7 +48,7 @@ namespace data {
 
 class Logic;
 
-class LogicSegment : public Segment
+class LogicSegment : public Segment, public enable_shared_from_this<Segment>
 {
 	Q_OBJECT
 
@@ -75,9 +75,29 @@ public:
 
 	virtual ~LogicSegment();
 
+	/**
+	 * Using enable_shared_from_this prevents the normal use of shared_ptr
+	 * instances by users of LogicSegment instances. Instead, shared_ptrs may
+	 * only be created by the instance itself.
+	 * See https://en.cppreference.com/w/cpp/memory/enable_shared_from_this
+	 */
+	shared_ptr<const LogicSegment> get_shared_ptr() const;
+
 	void append_payload(shared_ptr<sigrok::Logic> logic);
 	void append_payload(void *data, uint64_t data_size);
 
+	/**
+	 * Appends sample data for a single channel where each byte
+	 * represents one sample - if it's 0 the state is low, if 1 high.
+	 * Other values are not permitted.
+	 * Assumes that all channels are having samples added and in the
+	 * order of 0..n, not n..0.
+	 * Also assumes the the number of samples added for each channel
+	 * is constant for every invokation for 0..n. The number of samples
+	 * hence may only change when index is 0.
+	 */
+	void append_subsignal_payload(unsigned int index, void *data, uint64_t data_size);
+
 	void get_samples(int64_t start_sample, int64_t end_sample, uint8_t* dest) const;
 
 	/**