]> sigrok.org Git - pulseview.git/blobdiff - pv/session.cpp
Session: Fix include order
[pulseview.git] / pv / session.cpp
index d6fef9a7eee143e0de1f3f877654f6e117066719..b18d27ff9e8065f796b8434c21808a5568130737 100644 (file)
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#ifdef ENABLE_DECODE
-#include <libsigrokdecode/libsigrokdecode.h>
+#ifdef _WIN32
+// Windows: Avoid boost/thread namespace pollution (which includes windows.h).
+#define NOGDI
+#define NORESOURCE
 #endif
+#include <boost/thread/locks.hpp>
+#include <boost/thread/shared_mutex.hpp>
 
-#include "session.hpp"
+#include <cassert>
+#include <mutex>
+#include <stdexcept>
+
+#include <sys/stat.h>
 
+#include "session.hpp"
 #include "devicemanager.hpp"
 
 #include "data/analog.hpp"
 #include "data/decoderstack.hpp"
 #include "data/logic.hpp"
 #include "data/logicsegment.hpp"
+#include "data/signalbase.hpp"
 #include "data/decode/decoder.hpp"
 
 #include "devices/hardwaredevice.hpp"
 #include "devices/sessionfile.hpp"
 
+#include "toolbars/mainbar.hpp"
+
 #include "view/analogsignal.hpp"
 #include "view/decodetrace.hpp"
 #include "view/logicsignal.hpp"
-
-#include <cassert>
-#include <mutex>
-#include <stdexcept>
-
-#include <sys/stat.h>
-
-#include <QDebug>
+#include "view/signal.hpp"
+#include "view/view.hpp"
 
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
+#ifdef ENABLE_DECODE
+#include <libsigrokdecode/libsigrokdecode.h>
+#endif
+
 using boost::shared_lock;
 using boost::shared_mutex;
 using boost::unique_lock;
@@ -85,8 +95,9 @@ using Glib::VariantBase;
 using Glib::Variant;
 
 namespace pv {
-Session::Session(DeviceManager &device_manager) :
+Session::Session(DeviceManager &device_manager, QString name) :
        device_manager_(device_manager),
+       name_(name),
        capture_state_(Stopped),
        cur_samplerate_(0)
 {
@@ -120,6 +131,101 @@ shared_ptr<devices::Device> Session::device() const
        return device_;
 }
 
+QString Session::name() const
+{
+       return name_;
+}
+
+void Session::set_name(QString name)
+{
+       if (default_name_.isEmpty())
+               default_name_ = name;
+
+       name_ = name;
+
+       name_changed();
+}
+
+std::shared_ptr<pv::view::View> Session::main_view() const
+{
+       return main_view_;
+}
+
+void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar)
+{
+       main_bar_ = main_bar;
+}
+
+shared_ptr<pv::toolbars::MainBar> Session::main_bar() const
+{
+       return main_bar_;
+}
+
+void Session::save_settings(QSettings &settings) const
+{
+       map<string, string> dev_info;
+       list<string> key_list;
+
+       if (device_) {
+               settings.beginGroup("Device");
+               key_list.push_back("vendor");
+               key_list.push_back("model");
+               key_list.push_back("version");
+               key_list.push_back("serial_num");
+               key_list.push_back("connection_id");
+
+               dev_info = device_manager_.get_device_info(device_);
+
+               for (string key : key_list) {
+                       if (dev_info.count(key))
+                               settings.setValue(QString::fromUtf8(key.c_str()),
+                                               QString::fromUtf8(dev_info.at(key).c_str()));
+                       else
+                               settings.remove(QString::fromUtf8(key.c_str()));
+               }
+
+               // TODO Save channel settings and decoders
+
+               settings.endGroup();
+       }
+}
+
+void Session::restore_settings(QSettings &settings)
+{
+       map<string, string> dev_info;
+       list<string> key_list;
+       shared_ptr<devices::HardwareDevice> device;
+
+       // Re-select last used device if possible but only if it's not demo
+       settings.beginGroup("Device");
+       key_list.push_back("vendor");
+       key_list.push_back("model");
+       key_list.push_back("version");
+       key_list.push_back("serial_num");
+       key_list.push_back("connection_id");
+
+       for (string key : key_list) {
+               const QString k = QString::fromStdString(key);
+               if (!settings.contains(k))
+                       continue;
+
+               const string value = settings.value(k).toString().toStdString();
+               if (!value.empty())
+                       dev_info.insert(std::make_pair(key, value));
+       }
+
+       if (dev_info.count("model") > 0)
+               device = device_manager_.find_device_from_info(dev_info);
+
+       if (device) {
+               set_device(device);
+
+               // TODO Restore channel settings and decoders
+       }
+
+       settings.endGroup();
+}
+
 void Session::set_device(shared_ptr<devices::Device> device)
 {
        assert(device);
@@ -127,16 +233,53 @@ void Session::set_device(shared_ptr<devices::Device> device)
        // Ensure we are not capturing before setting the device
        stop_capture();
 
+       if (device_)
+               device_->close();
+
+       device_.reset();
+
+       // Revert name back to default name (e.g. "Untitled-1") as the data is gone
+       name_ = default_name_;
+       name_changed();
+
+       // Remove all stored data
+       for (std::shared_ptr<pv::view::View> view : views_) {
+               view->clear_signals();
+#ifdef ENABLE_DECODE
+               view->clear_decode_traces();
+#endif
+       }
+       for (const shared_ptr<data::SignalData> d : all_signal_data_)
+               d->clear();
+       all_signal_data_.clear();
+       signalbases_.clear();
+       cur_logic_segment_.reset();
+
+       for (auto entry : cur_analog_segments_) {
+               shared_ptr<sigrok::Channel>(entry.first).reset();
+               shared_ptr<data::AnalogSegment>(entry.second).reset();
+       }
+
+       logic_data_.reset();
+
+       signals_changed();
+
        device_ = std::move(device);
-       device_->create();
+
+       try {
+               device_->open();
+       } catch (const QString &e) {
+               device_.reset();
+               device_selected();
+               throw;
+       }
+
        device_->session()->add_datafeed_callback([=]
                (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) {
                        data_feed_in(device, packet);
                });
-       update_signals();
-
-       decode_traces_.clear();
 
+       update_signals();
        device_selected();
 }
 
@@ -164,10 +307,14 @@ Session::capture_state Session::get_capture_state() const
 
 void Session::start_capture(function<void (const QString)> error_handler)
 {
+       if (!device_) {
+               error_handler(tr("No active device set, can't start acquisition."));
+               return;
+       }
+
        stop_capture();
 
        // Check that at least one channel is enabled
-       assert(device_);
        const shared_ptr<sigrok::Device> sr_dev = device_->device();
        if (sr_dev) {
                const auto channels = sr_dev->channels();
@@ -179,10 +326,17 @@ void Session::start_capture(function<void (const QString)> error_handler)
                }
        }
 
+       // Clear signal data
+       for (const shared_ptr<data::SignalData> d : all_signal_data_)
+               d->clear();
+
+       // Revert name back to default name (e.g. "Untitled-1") as the data is gone
+       name_ = default_name_;
+       name_changed();
+
        // Begin the session
        sampling_thread_ = std::thread(
-               &Session::sample_thread_proc, this, device_,
-                       error_handler);
+               &Session::sample_thread_proc, this, error_handler);
 }
 
 void Session::stop_capture()
@@ -195,59 +349,82 @@ void Session::stop_capture()
                sampling_thread_.join();
 }
 
-set< shared_ptr<data::SignalData> > Session::get_data() const
+void Session::register_view(std::shared_ptr<pv::view::View> view)
 {
-       shared_lock<shared_mutex> lock(signals_mutex_);
-       set< shared_ptr<data::SignalData> > data;
-       for (const shared_ptr<view::Signal> sig : signals_) {
-               assert(sig);
-               data.insert(sig->data());
+       if (views_.empty()) {
+               main_view_ = view;
        }
 
-       return data;
+       views_.insert(view);
 }
 
-boost::shared_mutex& Session::signals_mutex() const
+void Session::deregister_view(std::shared_ptr<pv::view::View> view)
 {
-       return signals_mutex_;
+       views_.erase(view);
+
+       if (views_.empty()) {
+               main_view_.reset();
+
+               // Without a view there can be no main bar
+               main_bar_.reset();
+       }
+}
+
+bool Session::has_view(std::shared_ptr<pv::view::View> view)
+{
+       return views_.find(view) != views_.end();
+}
+
+double Session::get_samplerate() const
+{
+       double samplerate = 0.0;
+
+       for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) {
+               assert(d);
+               const vector< shared_ptr<pv::data::Segment> > segments =
+                       d->segments();
+               for (const shared_ptr<pv::data::Segment> &s : segments)
+                       samplerate = std::max(samplerate, s->samplerate());
+       }
+       // If there is no sample rate given we use samples as unit
+       if (samplerate == 0.0)
+               samplerate = 1.0;
+
+       return samplerate;
 }
 
-const unordered_set< shared_ptr<view::Signal> >& Session::signals() const
+const std::unordered_set< std::shared_ptr<data::SignalBase> >
+       Session::signalbases() const
 {
-       return signals_;
+       return signalbases_;
 }
 
 #ifdef ENABLE_DECODE
 bool Session::add_decoder(srd_decoder *const dec)
 {
-       map<const srd_channel*, shared_ptr<view::LogicSignal> > channels;
+       map<const srd_channel*, shared_ptr<data::SignalBase> > channels;
        shared_ptr<data::DecoderStack> decoder_stack;
 
-       try
-       {
-               lock_guard<boost::shared_mutex> lock(signals_mutex_);
-
+       try {
                // Create the decoder
                decoder_stack = shared_ptr<data::DecoderStack>(
                        new data::DecoderStack(*this, dec));
 
                // Make a list of all the channels
                std::vector<const srd_channel*> all_channels;
-               for(const GSList *i = dec->channels; i; i = i->next)
+               for (const GSList *i = dec->channels; i; i = i->next)
                        all_channels.push_back((const srd_channel*)i->data);
-               for(const GSList *i = dec->opt_channels; i; i = i->next)
+               for (const GSList *i = dec->opt_channels; i; i = i->next)
                        all_channels.push_back((const srd_channel*)i->data);
 
                // Auto select the initial channels
                for (const srd_channel *pdch : all_channels)
-                       for (shared_ptr<view::Signal> s : signals_)
-                       {
-                               shared_ptr<view::LogicSignal> l =
-                                       dynamic_pointer_cast<view::LogicSignal>(s);
-                               if (l && QString::fromUtf8(pdch->name).
-                                       toLower().contains(
-                                       l->name().toLower()))
-                                       channels[pdch] = l;
+                       for (shared_ptr<data::SignalBase> b : signalbases_) {
+                               if (b->type() == ChannelType::LOGIC) {
+                                       if (QString::fromUtf8(pdch->name).toLower().
+                                               contains(b->name().toLower()))
+                                               channels[pdch] = b;
+                               }
                        }
 
                assert(decoder_stack);
@@ -256,13 +433,14 @@ bool Session::add_decoder(srd_decoder *const dec)
                decoder_stack->stack().front()->set_channels(channels);
 
                // Create the decode signal
-               shared_ptr<view::DecodeTrace> d(
-                       new view::DecodeTrace(*this, decoder_stack,
-                               decode_traces_.size()));
-               decode_traces_.push_back(d);
-       }
-       catch(std::runtime_error e)
-       {
+               shared_ptr<data::SignalBase> signalbase =
+                       shared_ptr<data::SignalBase>(new data::SignalBase(nullptr));
+
+               signalbase->set_decoder_stack(decoder_stack);
+
+               for (std::shared_ptr<pv::view::View> view : views_)
+                       view->add_decode_trace(signalbase);
+       } catch (std::runtime_error e) {
                return false;
        }
 
@@ -274,43 +452,53 @@ bool Session::add_decoder(srd_decoder *const dec)
        return true;
 }
 
-vector< shared_ptr<view::DecodeTrace> > Session::get_decode_signals() const
-{
-       shared_lock<shared_mutex> lock(signals_mutex_);
-       return decode_traces_;
-}
-
-void Session::remove_decode_signal(view::DecodeTrace *signal)
+void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase)
 {
-       for (auto i = decode_traces_.begin(); i != decode_traces_.end(); i++)
-               if ((*i).get() == signal)
-               {
-                       decode_traces_.erase(i);
-                       signals_changed();
-                       return;
-               }
+       for (std::shared_ptr<pv::view::View> view : views_)
+               view->remove_decode_trace(signalbase);
 }
 #endif
 
 void Session::set_capture_state(capture_state state)
 {
-       lock_guard<mutex> lock(sampling_mutex_);
-       const bool changed = capture_state_ != state;
-       capture_state_ = state;
-       if(changed)
+       bool changed;
+
+       {
+               lock_guard<mutex> lock(sampling_mutex_);
+               changed = capture_state_ != state;
+               capture_state_ = state;
+       }
+
+       if (changed)
                capture_state_changed(state);
 }
 
 void Session::update_signals()
 {
-       assert(device_);
+       if (!device_) {
+               signalbases_.clear();
+               logic_data_.reset();
+               for (std::shared_ptr<pv::view::View> view : views_) {
+                       view->clear_signals();
+#ifdef ENABLE_DECODE
+                       view->clear_decode_traces();
+#endif
+               }
+               return;
+       }
 
        lock_guard<recursive_mutex> lock(data_mutex_);
 
        const shared_ptr<sigrok::Device> sr_dev = device_->device();
        if (!sr_dev) {
-               signals_.clear();
+               signalbases_.clear();
                logic_data_.reset();
+               for (std::shared_ptr<pv::view::View> view : views_) {
+                       view->clear_signals();
+#ifdef ENABLE_DECODE
+                       view->clear_decode_traces();
+#endif
+               }
                return;
        }
 
@@ -335,47 +523,64 @@ void Session::update_signals()
                }
        }
 
-       // Make the Signals list
-       {
-               unique_lock<shared_mutex> lock(signals_mutex_);
-
-               unordered_set< shared_ptr<view::Signal> > prev_sigs(signals_);
-               signals_.clear();
+       // Make the signals list
+       for (std::shared_ptr<pv::view::View> view : views_) {
+               unordered_set< shared_ptr<view::Signal> > prev_sigs(view->signals());
+               view->clear_signals();
 
                for (auto channel : sr_dev->channels()) {
+                       shared_ptr<data::SignalBase> signalbase;
                        shared_ptr<view::Signal> signal;
 
                        // Find the channel in the old signals
                        const auto iter = std::find_if(
                                prev_sigs.cbegin(), prev_sigs.cend(),
                                [&](const shared_ptr<view::Signal> &s) {
-                                       return s->channel() == channel;
+                                       return s->base()->channel() == channel;
                                });
                        if (iter != prev_sigs.end()) {
                                // Copy the signal from the old set to the new
                                signal = *iter;
-                               auto logic_signal = dynamic_pointer_cast<
-                                       view::LogicSignal>(signal);
-                               if (logic_signal)
-                                       logic_signal->set_logic_data(
-                                               logic_data_);
                        } else {
-                               // Create a new signal
+                               // Find the signalbase for this channel if possible
+                               signalbase.reset();
+                               for (const shared_ptr<data::SignalBase> b : signalbases_)
+                                       if (b->channel() == channel)
+                                               signalbase = b;
+
                                switch(channel->type()->id()) {
                                case SR_CHANNEL_LOGIC:
+                                       if (!signalbase) {
+                                               signalbase = shared_ptr<data::SignalBase>(
+                                                       new data::SignalBase(channel));
+                                               signalbases_.insert(signalbase);
+
+                                               all_signal_data_.insert(logic_data_);
+                                               signalbase->set_data(logic_data_);
+                                       }
+
                                        signal = shared_ptr<view::Signal>(
                                                new view::LogicSignal(*this,
-                                                       device_, channel,
-                                                       logic_data_));
+                                                       device_, signalbase));
+                                       view->add_signal(signal);
                                        break;
 
                                case SR_CHANNEL_ANALOG:
                                {
-                                       shared_ptr<data::Analog> data(
-                                               new data::Analog());
+                                       if (!signalbase) {
+                                               signalbase = shared_ptr<data::SignalBase>(
+                                                       new data::SignalBase(channel));
+                                               signalbases_.insert(signalbase);
+
+                                               shared_ptr<data::Analog> data(new data::Analog());
+                                               all_signal_data_.insert(data);
+                                               signalbase->set_data(data);
+                                       }
+
                                        signal = shared_ptr<view::Signal>(
                                                new view::AnalogSignal(
-                                                       *this, channel, data));
+                                                       *this, signalbase));
+                                       view->add_signal(signal);
                                        break;
                                }
 
@@ -384,38 +589,37 @@ void Session::update_signals()
                                        break;
                                }
                        }
-
-                       assert(signal);
-                       signals_.insert(signal);
                }
        }
 
        signals_changed();
 }
 
-shared_ptr<view::Signal> Session::signal_from_channel(
-       shared_ptr<Channel> channel) const
+shared_ptr<data::SignalBase> Session::signalbase_from_channel(
+       shared_ptr<sigrok::Channel> channel) const
 {
-       lock_guard<boost::shared_mutex> lock(signals_mutex_);
-       for (shared_ptr<view::Signal> sig : signals_) {
+       for (shared_ptr<data::SignalBase> sig : signalbases_) {
                assert(sig);
                if (sig->channel() == channel)
                        return sig;
        }
-       return shared_ptr<view::Signal>();
+       return shared_ptr<data::SignalBase>();
 }
 
-void Session::sample_thread_proc(shared_ptr<devices::Device> device,
-       function<void (const QString)> error_handler)
+void Session::sample_thread_proc(function<void (const QString)> error_handler)
 {
-       assert(device);
        assert(error_handler);
 
+       if (!device_)
+               return;
+
        cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
 
+       out_of_memory_ = false;
+
        try {
                device_->start();
-       } catch(Error e) {
+       } catch (Error e) {
                error_handler(e.what());
                return;
        }
@@ -427,11 +631,13 @@ void Session::sample_thread_proc(shared_ptr<devices::Device> device,
        set_capture_state(Stopped);
 
        // Confirm that SR_DF_END was received
-       if (cur_logic_segment_)
-       {
+       if (cur_logic_segment_) {
                qDebug("SR_DF_END was not received.");
                assert(0);
        }
+
+       if (out_of_memory_)
+               error_handler(tr("Out of memory, acquisition stopped."));
 }
 
 void Session::feed_in_header()
@@ -444,6 +650,11 @@ void Session::feed_in_meta(shared_ptr<Meta> meta)
        for (auto entry : meta->config()) {
                switch (entry.first->id()) {
                case SR_CONF_SAMPLERATE:
+                       // We can't rely on the header to always contain the sample rate,
+                       // so in case it's supplied via a meta packet, we use it.
+                       if (!cur_samplerate_)
+                               cur_samplerate_ = g_variant_get_uint64(entry.second.gobj());
+
                        /// @todo handle samplerate changes
                        break;
                default:
@@ -455,6 +666,29 @@ void Session::feed_in_meta(shared_ptr<Meta> meta)
        signals_changed();
 }
 
+void Session::feed_in_trigger()
+{
+       // The channel containing most samples should be most accurate
+       uint64_t sample_count = 0;
+
+       {
+               for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) {
+                       assert(d);
+                       uint64_t temp_count = 0;
+
+                       const vector< shared_ptr<pv::data::Segment> > segments =
+                               d->segments();
+                       for (const shared_ptr<pv::data::Segment> &s : segments)
+                               temp_count += s->get_sample_count();
+
+                       if (temp_count > sample_count)
+                               sample_count = temp_count;
+               }
+       }
+
+       trigger_event(sample_count / get_samplerate());
+}
+
 void Session::feed_in_frame_begin()
 {
        if (cur_logic_segment_ || !cur_analog_segments_.empty())
@@ -465,27 +699,23 @@ void Session::feed_in_logic(shared_ptr<Logic> logic)
 {
        lock_guard<recursive_mutex> lock(data_mutex_);
 
-       if (!logic_data_)
-       {
+       const size_t sample_count = logic->data_length() / logic->unit_size();
+
+       if (!logic_data_) {
                // The only reason logic_data_ would not have been created is
                // if it was not possible to determine the signals when the
                // device was created.
                update_signals();
        }
 
-       if (!cur_logic_segment_)
-       {
+       if (!cur_logic_segment_) {
                // This could be the first packet after a trigger
                set_capture_state(Running);
 
-               // Get sample limit.
-               const uint64_t sample_limit = device_->read_config<uint64_t>(
-                       ConfigKey::LIMIT_SAMPLES);
-
                // Create a new data segment
                cur_logic_segment_ = shared_ptr<data::LogicSegment>(
                        new data::LogicSegment(
-                               logic, cur_samplerate_, sample_limit));
+                               logic, cur_samplerate_, sample_count));
                logic_data_->push_segment(cur_logic_segment_);
 
                // @todo Putting this here means that only listeners querying
@@ -493,9 +723,7 @@ void Session::feed_in_logic(shared_ptr<Logic> logic)
                // frame_began is DecoderStack, but in future we need to signal
                // this after both analog and logic sweeps have begun.
                frame_began();
-       }
-       else
-       {
+       } else {
                // Append to the existing data segment
                cur_logic_segment_->append_payload(logic);
        }
@@ -510,11 +738,13 @@ void Session::feed_in_analog(shared_ptr<Analog> analog)
        const vector<shared_ptr<Channel>> channels = analog->channels();
        const unsigned int channel_count = channels.size();
        const size_t sample_count = analog->num_samples() / channel_count;
-       const float *data = analog->data_pointer();
+       const float *data = static_cast<const float *>(analog->data_pointer());
        bool sweep_beginning = false;
 
-       for (auto channel : channels)
-       {
+       if (signalbases_.empty())
+               update_signals();
+
+       for (auto channel : channels) {
                shared_ptr<data::AnalogSegment> segment;
 
                // Try to get the segment of the channel
@@ -522,39 +752,23 @@ void Session::feed_in_analog(shared_ptr<Analog> analog)
                        iterator iter = cur_analog_segments_.find(channel);
                if (iter != cur_analog_segments_.end())
                        segment = (*iter).second;
-               else
-               {
-                       // If no segment was found, this means we havn't
+               else {
+                       // If no segment was found, this means we haven't
                        // created one yet. i.e. this is the first packet
                        // in the sweep containing this segment.
                        sweep_beginning = true;
 
-                       // Get sample limit.
-                       uint64_t sample_limit;
-                       try {
-                               assert(device_);
-                               const std::shared_ptr<sigrok::Device> device =
-                                       device_->device();
-                               assert(device);
-                               sample_limit = VariantBase::cast_dynamic<Variant<guint64>>(
-                                       device->config_get(ConfigKey::LIMIT_SAMPLES)).get();
-                       } catch (Error) {
-                               sample_limit = 0;
-                       }
-
                        // Create a segment, keep it in the maps of channels
                        segment = shared_ptr<data::AnalogSegment>(
                                new data::AnalogSegment(
-                                       cur_samplerate_, sample_limit));
+                                       cur_samplerate_, sample_count));
                        cur_analog_segments_[channel] = segment;
 
-                       // Find the annalog data associated with the channel
-                       shared_ptr<view::AnalogSignal> sig =
-                               dynamic_pointer_cast<view::AnalogSignal>(
-                                       signal_from_channel(channel));
-                       assert(sig);
+                       // Find the analog data associated with the channel
+                       shared_ptr<data::SignalBase> base = signalbase_from_channel(channel);
+                       assert(base);
 
-                       shared_ptr<data::Analog> data(sig->analog_data());
+                       shared_ptr<data::Analog> data(base->analog_data());
                        assert(data);
 
                        // Push the segment into the analog data.
@@ -594,16 +808,30 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
                feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload()));
                break;
 
+       case SR_DF_TRIGGER:
+               feed_in_trigger();
+               break;
+
        case SR_DF_FRAME_BEGIN:
                feed_in_frame_begin();
                break;
 
        case SR_DF_LOGIC:
-               feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
+               try {
+                       feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
+               } catch (std::bad_alloc) {
+                       out_of_memory_ = true;
+                       device_->stop();
+               }
                break;
 
        case SR_DF_ANALOG:
-               feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload()));
+               try {
+                       feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload()));
+               } catch (std::bad_alloc) {
+                       out_of_memory_ = true;
+                       device_->stop();
+               }
                break;
 
        case SR_DF_END: