From bdd685c63e3294f84698c80665b9e2d5a0f13407 Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Tue, 21 May 2019 21:18:49 +0200
Subject: [PATCH] TestSource: debug message for QTimer

---
 .../testsource/testsourcethread.cpp           | 23 ++++++++++++++++++-
 .../testsource/testsourcethread.h             |  5 ++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/plugins/samplesource/testsource/testsourcethread.cpp b/plugins/samplesource/testsource/testsourcethread.cpp
index e16c4a85c..1df45e022 100644
--- a/plugins/samplesource/testsource/testsourcethread.cpp
+++ b/plugins/samplesource/testsource/testsourcethread.cpp
@@ -63,7 +63,8 @@ TestSourceThread::TestSourceThread(SampleSinkFifo* sampleFifo, QObject* parent)
 	m_fcPosShift(0),
     m_throttlems(TESTSOURCE_THROTTLE_MS),
     m_throttleToggle(false),
-    m_mutex(QMutex::Recursive)
+    m_mutex(QMutex::Recursive),
+    m_histoCounter(0)
 {
     connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
 }
@@ -74,6 +75,7 @@ TestSourceThread::~TestSourceThread()
 
 void TestSourceThread::startWork()
 {
+    //m_timer.setTimerType(Qt::PreciseTimer);
     connect(&m_timer, SIGNAL(timeout()), this, SLOT(tick()));
     m_timer.start(50);
 	m_startWaitMutex.lock();
@@ -392,6 +394,25 @@ void TestSourceThread::tick()
     {
         qint64 throttlems = m_elapsedTimer.restart();
 
+        std::map<int,int>::iterator it;
+        it = m_timerHistogram.find(throttlems);
+
+        if (it == m_timerHistogram.end()) {
+            m_timerHistogram[throttlems] = 1;
+        } else {
+            it->second++;
+        }
+
+        if (m_histoCounter < 49) {
+            m_histoCounter++;
+        } else {
+            qDebug("TestSourceThread::tick: -----------");
+            for (std::map<int,int>::iterator it = m_timerHistogram.begin(); it != m_timerHistogram.end(); ++it) {
+                qDebug("TestSourceThread::tick: %d: %d", it->first, it->second);
+            }
+            m_histoCounter = 0;
+        }
+
         if ((throttlems > 45) && (throttlems < 55) && (throttlems != m_throttlems))
         {
             QMutexLocker mutexLocker(&m_mutex);
diff --git a/plugins/samplesource/testsource/testsourcethread.h b/plugins/samplesource/testsource/testsourcethread.h
index 309a08dc6..110013fbe 100644
--- a/plugins/samplesource/testsource/testsourcethread.h
+++ b/plugins/samplesource/testsource/testsourcethread.h
@@ -18,6 +18,8 @@
 #ifndef _TESTSOURCE_TESTSOURCETHREAD_H_
 #define _TESTSOURCE_TESTSOURCETHREAD_H_
 
+#include <map>
+
 #include <QThread>
 #include <QMutex>
 #include <QWaitCondition>
@@ -133,6 +135,9 @@ private:
     Decimators<qint32, qint16, SDR_RX_SAMP_SZ, 12> m_decimators_12;
     Decimators<qint32, qint16, SDR_RX_SAMP_SZ, 16> m_decimators_16;
 
+    std::map<int, int> m_timerHistogram;
+    uint32_t m_histoCounter;
+
 	void startWork();
 	void stopWork();
 	void run();