X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdata%2Fdecoderstack.cpp;h=2b07936840f49df3d76160f2b6250ed051278003;hp=2668df2937acb3e29035ab39ceffaf86953f1195;hb=efdec55aec1a137460fa362a381ed1904182bfed;hpb=2ad82c2e40b6865481733913a2c32735602f63c4

diff --git a/pv/data/decoderstack.cpp b/pv/data/decoderstack.cpp
index 2668df2..2b07936 100644
--- a/pv/data/decoderstack.cpp
+++ b/pv/data/decoderstack.cpp
@@ -14,8 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <libsigrokdecode/libsigrokdecode.h>
@@ -55,9 +54,9 @@ namespace data {
 const double DecoderStack::DecodeMargin = 1.0;
 const double DecoderStack::DecodeThreshold = 0.2;
 const int64_t DecoderStack::DecodeChunkLength = 4096;
-const unsigned int DecoderStack::DecodeNotifyPeriod = 65536;
+const unsigned int DecoderStack::DecodeNotifyPeriod = 1024;
 
-mutex DecoderStack::global_decode_mutex_;
+mutex DecoderStack::global_srd_mutex_;
 
 DecoderStack::DecoderStack(pv::Session &session,
 	const srd_decoder *const dec) :
@@ -191,9 +190,6 @@ void DecoderStack::clear()
 
 void DecoderStack::begin_decode()
 {
-	shared_ptr<pv::view::LogicSignal> logic_signal;
-	shared_ptr<pv::data::Logic> data;
-
 	if (decode_thread_.joinable()) {
 		interrupt_ = true;
 		input_cond_.notify_one();
@@ -241,11 +237,14 @@ void DecoderStack::begin_decode()
 
 	// We get the logic data of the first channel in the list.
 	// This works because we are currently assuming all
-	// LogicSignals have the same data/segment
+	// logic signals have the same data/segment
+	pv::data::SignalBase *signalbase;
+	pv::data::Logic *data = nullptr;
+
 	for (const shared_ptr<decode::Decoder> &dec : stack_)
 		if (dec && !dec->channels().empty() &&
-			((logic_signal = (*dec->channels().begin()).second)) &&
-			((data = logic_signal->logic_data())))
+			((signalbase = (*dec->channels().begin()).second.get())) &&
+			((data = signalbase->logic_data().get())))
 			break;
 
 	if (!data)
@@ -272,9 +271,9 @@ uint64_t DecoderStack::max_sample_count() const
 {
 	uint64_t max_sample_count = 0;
 
-	for (auto i = rows_.cbegin(); i != rows_.end(); i++)
+	for (const auto& row : rows_)
 		max_sample_count = max(max_sample_count,
-			(*i).second.get_max_sample());
+			row.second.get_max_sample());
 
 	return max_sample_count;
 }
@@ -282,11 +281,22 @@ uint64_t DecoderStack::max_sample_count() const
 optional<int64_t> DecoderStack::wait_for_data() const
 {
 	unique_lock<mutex> input_lock(input_mutex_);
+
+	// Do wait if we decoded all samples but we're still capturing
+	// Do not wait if we're done capturing
 	while (!interrupt_ && !frame_complete_ &&
-		samples_decoded_ >= sample_count_)
+		(samples_decoded_ >= sample_count_) &&
+		(session_.get_capture_state() != Session::Stopped)) {
+
 		input_cond_.wait(input_lock);
+	}
+
+	// Return value is valid if we're not aborting the decode,
 	return boost::make_optional(!interrupt_ &&
-		(samples_decoded_ < sample_count_ || !frame_complete_),
+		// and there's more work to do...
+		(samples_decoded_ < sample_count_ || !frame_complete_) &&
+		// and if the end of the data hasn't been reached yet
+		(!((samples_decoded_ >= sample_count_) && (session_.get_capture_state() == Session::Stopped))),
 		sample_count_);
 }
 
@@ -301,7 +311,6 @@ void DecoderStack::decode_data(
 
 	for (int64_t i = 0; !interrupt_ && i < sample_count;
 			i += chunk_sample_count) {
-		lock_guard<mutex> decode_lock(global_decode_mutex_);
 
 		const int64_t chunk_end = min(
 			i + chunk_sample_count, sample_count);
@@ -333,6 +342,9 @@ void DecoderStack::decode_proc()
 
 	assert(segment_);
 
+	// Prevent any other decode threads from accessing libsigrokdecode
+	lock_guard<mutex> srd_lock(global_srd_mutex_);
+
 	// Create the session
 	srd_session_new(&session);
 	assert(session);