detectors/slsDetectorPackage
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changed API for setting network parameter to remove memory leak, fixed lock issues in streaming print outs to gui

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This commit is contained in:
Dhanya Maliakal
2017-06-19 14:19:30 +02:00
parent 47e5504203
commit 2ec1e08081
3 changed files with 36 additions and 25 deletions
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13
slsDetectorGui/include/qDebugStream.h
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@ -17,6 +17,7 @@
#include <QString>
#include <QCustomEvent>
#include <iostream>
#include <streambuf>
#include <string>
@ -47,6 +48,7 @@ class qDebugStream : public basic_streambuf<char> {
public:
qDebugStream(ostream &stream, QWidget* w) : m_stream(stream), log_window(w) {
mutex = PTHREAD_MUTEX_INITIALIZER;
m_old_buf = stream.rdbuf();
stream.rdbuf(this);
}
@ -55,8 +57,11 @@ public:
~qDebugStream(){
// output anything that is left
if (!m_string.empty())
if (!m_string.empty()) {
pthread_mutex_lock(&mutex);
QApplication::postEvent(log_window, new qStreamEvent(m_string.c_str()));
pthread_mutex_unlock(&mutex);
}
m_stream.rdbuf(m_old_buf);
}
@ -65,8 +70,10 @@ public:
protected:
virtual int_type overflow(int_type v){
if (v == '\n'){
pthread_mutex_lock(&mutex);
QApplication::postEvent(log_window, new qStreamEvent(m_string.c_str()));
m_string.erase(m_string.begin(), m_string.end());
pthread_mutex_unlock(&mutex);
}
else
m_string += v;
@ -76,7 +83,9 @@ protected:
//-------------------------------------------------------------------------------------------------------------------------------------------------
virtual streamsize xsputn(const char *p, streamsize n) {
pthread_mutex_lock(&mutex);
m_string.append(p, p + n);
//changed from uint because of 64 bit
int pos = 0;
@ -88,12 +97,14 @@ protected:
m_string.erase(m_string.begin(), m_string.begin() + pos + 1);
}
}
pthread_mutex_unlock(&mutex);
return n;
}
//-------------------------------------------------------------------------------------------------------------------------------------------------
private:
pthread_mutex_t mutex;
ostream &m_stream;
streambuf *m_old_buf;
string m_string;