acquisition: drive a DataSource from the registry; --source and --source-opt

src/acquisition.hpp

@@ -8,21 +8,22 @@
 #include "model.hpp"
 #include "trigger.hpp"
 
-#include <udps_client.h>
+#include "source/data_source.hpp"
 
 #include <atomic>
 #include <chrono>
 #include <cstdint>
 #include <limits>
+#include <memory>
 #include <thread>
 #include <vector>
 
 namespace udpscope {
 
-/// Owns the UDPStreamer client and the producer thread that feeds the model's
+/// Owns the data source and the producer thread that feeds the model's
 /// acquisition buffer. Everything it touches from the thread is serialised on
 /// `ScopeModel::mutex()`, so a UI-side structural change cannot race a frame.
-class Acquisition {
+class Acquisition : private SourceSink {
  public:
   Acquisition(ScopeModel& model, const Config& cfg);
   ~Acquisition();
@@ -62,22 +63,19 @@ class Acquisition {
   /// read by a packet whose engine was still disarmed, and then dropped.
   void request_force() noexcept { force_want_.store(true, std::memory_order_release); }
 
+  /// The source this acquisition drives, for the UI's capability panels: it may only call
+  /// `post()` on it. Null until `start()`.
+  DataSource* source() noexcept { return source_.get(); }
+
   /// The capture, for the popover's row and the probe. Counters and errors are read
   /// cross-thread through PacketCapture's own published fields.
   const PacketCapture& capture() const noexcept { return capture_; }
 
  private:
   void run();
-  void on_config(const udps_signal_t* signals, std::uint32_t count, std::uint8_t publish_mode);
-  void on_data(const udps_frame_t* frame);
-  void on_event(int event, const char* detail);
-
-  static void config_trampoline(const udps_signal_t* signals, std::uint32_t count,
-                                std::uint8_t publish_mode, void* user);
-  static void data_trampoline(const udps_frame_t* frame, void* user);
-  static void event_trampoline(udps_event_t event, const char* detail, void* user);
-  static void datagram_trampoline(const std::uint8_t* bytes, std::size_t len,
-                                  double recv_time, void* user);
+  void on_config(const std::vector<SignalInfo>& signals, std::uint8_t publish_mode) override;
+  void on_data(const Frame& frame) override;
+  void on_event(SourceEvent event, const char* detail) override;
   /// Drops the producer state that is per *connection*: the counter mark, the time
   /// anchors and the clock choice. A reconnect re-sends the CONFIG and the stream may
   /// have restarted its numbering; carrying the old session's marks across makes the
@@ -89,9 +87,9 @@ class Acquisition {
   void on_datagram(const std::uint8_t* bytes, std::size_t len, double recv_time);
 
   /// Fills `stamps_` with this frame's base-tick timestamps, in stream seconds,
-  /// and returns how many were written (`frame->num_samples` unless the frame is
+  /// and returns how many were written (`frame.num_samples` unless the frame is
   /// malformed).
-  std::uint32_t build_stamps(const udps_frame_t* frame, int time_signal,
+  std::uint32_t build_stamps(const Frame& frame, int time_signal,
                              bool counter_gap_refused);
 
   /// Pushes NaN for the `missing` packets' worth of samples that were never delivered,
@@ -104,7 +102,7 @@ class Acquisition {
   /// Writes a late frame's values into the NaN-filled holes their counter addresses,
   /// amending the value ring directly (producer path) and queuing pyramid amends for
   /// `ChannelBuffer::acquire()` to apply on the consumer thread.
-  void backfill_from(const udps_frame_t* frame, const Partition& part,
+  void backfill_from(const Frame& frame, const Partition& part,
                      const std::vector<ChannelInfo>& channels, BufferStore& store, u64 g);
 
   /// Keeps the wire's own cadence up to date from the arrival times, in the modes where
@@ -118,7 +116,7 @@ class Acquisition {
 
   ScopeModel& model_;
   Config cfg_;
-  udps_client* client_ = nullptr;
+  std::unique_ptr<DataSource> source_;
   std::thread thread_;
   std::atomic<bool> running_{false};
   std::atomic<bool> paused_{false};