Session: Add error messages

[pulseview.git] / pv / session.cpp

diff --git a/pv/session.cpp b/pv/session.cpp
index c18575ad415559a8e66fa0fae7a6b65774a53c59..a9bb554efd08a34e14b3375955b0ee6679ae31ea 100644 (file)
--- a/pv/session.cpp
+++ b/pv/session.cpp
@@ -352,8 +352,7 @@ void Session::select_device(shared_ptr<devices::Device> device)
                else
                        set_default_device();
        } catch (const QString &e) {
-               main_bar_->session_error(tr("Failed to Select Device"),
-                       tr("Failed to Select Device"));
+               main_bar_->session_error(tr("Failed to select device"), e);
        }
 }
 
@@ -401,6 +400,7 @@ void Session::set_device(shared_ptr<devices::Device> device)
                device_->open();
        } catch (const QString &e) {
                device_.reset();
+               main_bar_->session_error(tr("Failed to open device"), e);
        }
 
        if (device_) {
@@ -426,7 +426,7 @@ void Session::set_default_device()
        // Try and find the demo device and select that by default
        const auto iter = find_if(devices.begin(), devices.end(),
                [] (const shared_ptr<devices::HardwareDevice> &d) {
-                       return d->hardware_device()->driver()->name() == "demo";        });
+                       return d->hardware_device()->driver()->name() == "demo"; });
        set_device((iter == devices.end()) ? devices.front() : *iter);
 }
 
@@ -567,6 +567,8 @@ void Session::start_capture(function<void (const QString)> error_handler)
        for (const shared_ptr<data::SignalData> d : all_signal_data_)
                d->clear();
 
+       trigger_list_.clear();
+
        // Revert name back to default name (e.g. "Session 1") for real devices
        // as the (possibly saved) data is gone. File devices keep their name.
        shared_ptr<devices::HardwareDevice> hw_device =
@@ -689,6 +691,17 @@ uint32_t Session::get_segment_count() const
        return value;
 }
 
+vector<util::Timestamp> Session::get_triggers(uint32_t segment_id) const
+{
+       vector<util::Timestamp> result;
+
+       for (pair<uint32_t, util::Timestamp> entry : trigger_list_)
+               if (entry.first == segment_id)
+                       result.push_back(entry.second);
+
+       return result;
+}
+
 const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const
 {
        return signalbases_;
@@ -917,6 +930,7 @@ void Session::sample_thread_proc(function<void (const QString)> error_handler)
                cur_analog_segments_.clear();
        }
        highest_segment_id_ = -1;
+       frame_began_ = false;
 
        try {
                device_->start();
@@ -1066,7 +1080,13 @@ void Session::feed_in_trigger()
                }
        }
 
-       trigger_event(sample_count / get_samplerate());
+       // If no frame began then this is a trigger for a new segment
+       const uint32_t segment_id =
+               (frame_began_) ? highest_segment_id_ : (highest_segment_id_ + 1);
+
+       util::Timestamp timestamp = sample_count / get_samplerate();
+       trigger_list_.emplace_back(segment_id, timestamp);
+       trigger_event(segment_id, timestamp);
 }
 
 void Session::feed_in_frame_begin()
@@ -1094,8 +1114,7 @@ void Session::feed_in_frame_end()
                cur_analog_segments_.clear();
        }
 
-       if (frame_began_)
-               frame_began_ = false;
+       frame_began_ = false;
 
        signal_segment_completed();
 }