Add option to Preferences to flush file loggers when a signal is triggered

ApplicationExeCode/RiaMain.cpp

@@ -18,6 +18,7 @@
 
 #include "RiaArgumentParser.h"
 #include "RiaMainTools.h"
+#include "RiaPreferences.h"
 
 #ifdef ENABLE_GRPC
 #include "RiaGrpcConsoleApplication.h"
@@ -39,6 +40,10 @@
 #include <unistd.h>
 #endif
 
+#include <signal.h>
+
+void manageSegFailure( int signalCode );
+
 RiaApplication* createApplication( int& argc, char* argv[] )
 {
     for ( int i = 1; i < argc; ++i )
@@ -109,6 +114,17 @@ int main( int argc, char* argv[] )
     QLocale::setDefault( QLocale( QLocale::English, QLocale::UnitedStates ) );
     setlocale( LC_NUMERIC, "C" );
 
+    // Set up signal handlers
+    if ( RiaPreferences::current()->loggerTrapSignalAndFlush() )
+    {
+        signal( SIGINT, manageSegFailure );
+        signal( SIGILL, manageSegFailure );
+        signal( SIGFPE, manageSegFailure );
+        signal( SIGSEGV, manageSegFailure );
+        signal( SIGTERM, manageSegFailure );
+        signal( SIGABRT, manageSegFailure );
+    }
+
     // Handle the command line arguments.
     // Todo: Move to a one-shot timer, delaying the execution until we are inside the event loop.
     // The complete handling of the resulting ApplicationStatus must be moved along.

ApplicationExeCode/RiaMainTools.cpp

@@ -17,6 +17,8 @@
 /////////////////////////////////////////////////////////////////////////////////
 
 #include "RiaMainTools.h"
+#include "RiaFileLogger.h"
+#include "RiaLogging.h"
 #include "RiaRegressionTestRunner.h"
 #include "RiaSocketCommand.h"
 
@@ -25,6 +27,32 @@
 #include "cafPdmDefaultObjectFactory.h"
 #include "cafPdmUiFieldEditorHandle.h"
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void manageSegFailure( int signalCode )
+{
+    // Executing function here is not safe, but works as expected on Windows. Behavior on Linux is undefined, but will
+    // work in some cases.
+    // https://github.com/gabime/spdlog/issues/1607
+
+    auto loggers = RiaLogging::loggerInstances();
+
+    QString str = QString( "Segmentation fault. Signal code: %1" ).arg( signalCode );
+
+    for ( auto logger : loggers )
+    {
+        if ( auto fileLogger = dynamic_cast<RiaFileLogger*>( logger ) )
+        {
+            fileLogger->error( str.toStdString().data() );
+
+            fileLogger->flush();
+        }
+    }
+
+    exit( 1 );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------

ApplicationLibCode/Application/RiaPreferences.cpp

@@ -137,6 +137,7 @@ RiaPreferences::RiaPreferences()
     m_loggerFilename.uiCapability()->setUiEditorTypeName( caf::PdmUiCheckBoxAndTextEditor::uiEditorTypeName() );
 
     CAF_PDM_InitField( &m_loggerFlushInterval, "loggerFlushInterval", 500, "Logging Flush Interval [ms]" );
+    CAF_PDM_InitField( &m_loggerTrapSignalAndFlush, "loggerTrapSignalAndFlush", false, "Trap SIGNAL and Flush File Logs" );
 
     CAF_PDM_InitField( &ssihubAddress, "ssihubAddress", QString( "http://" ), "SSIHUB Address" );
     ssihubAddress.uiCapability()->setUiLabelPosition( caf::PdmUiItemInfo::TOP );
@@ -478,6 +479,8 @@ void RiaPreferences::defineUiOrdering( QString uiConfigName, caf::PdmUiOrdering&
         caf::PdmUiGroup* loggingGroup = uiOrdering.addNewGroup( "Logging" );
         loggingGroup->add( &m_loggerFilename );
         loggingGroup->add( &m_loggerFlushInterval );
+        loggingGroup->add( &m_loggerTrapSignalAndFlush );
+        m_loggerTrapSignalAndFlush.uiCapability()->setUiReadOnly( !m_loggerFilename().first );
         m_loggerFlushInterval.uiCapability()->setUiReadOnly( !m_loggerFilename().first );
     }
     else if ( RiaApplication::enableDevelopmentFeatures() && uiConfigName == RiaPreferences::tabNameSystem() )
@@ -971,6 +974,14 @@ int RiaPreferences::loggerFlushInterval() const
     return m_loggerFlushInterval();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+bool RiaPreferences::loggerTrapSignalAndFlush() const
+{
+    return m_loggerTrapSignalAndFlush();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------

ApplicationLibCode/Application/RiaPreferences.h

@@ -119,6 +119,7 @@ public:
 
     QString loggerFilename() const;
     int     loggerFlushInterval() const;
+    bool    loggerTrapSignalAndFlush() const;
 
     RiaPreferencesGeoMech* geoMechPreferences() const;
     RiaPreferencesSummary* summaryPreferences() const;
@@ -209,6 +210,7 @@ private:
     // Logging
     caf::PdmField<std::pair<bool, QString>> m_loggerFilename;
     caf::PdmField<int>                      m_loggerFlushInterval;
+    caf::PdmField<bool>                     m_loggerTrapSignalAndFlush;
 
     // Surface Import
     caf::PdmField<double> m_surfaceImportResamplingDistance;

ApplicationLibCode/Application/Tools/RiaFileLogger.cpp

@@ -83,6 +83,14 @@ public:
         if ( m_spdlogger ) m_spdlogger->warn( message );
     }
 
+    //--------------------------------------------------------------------------------------------------
+    ///
+    //--------------------------------------------------------------------------------------------------
+    void flush()
+    {
+        if ( m_spdlogger ) m_spdlogger->flush();
+    }
+
 private:
     std::shared_ptr<spdlog::logger> m_spdlogger;
 };
@@ -150,3 +158,11 @@ void RiaFileLogger::debug( const char* message )
 {
     m_impl->debug( message );
 }
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RiaFileLogger::flush()
+{
+    if ( m_impl ) m_impl->flush();
+}

ApplicationLibCode/Application/Tools/RiaFileLogger.h

@@ -37,6 +37,8 @@ public:
     void info( const char* message ) override;
     void debug( const char* message ) override;
 
+    void flush();
+
 private:
     int m_logLevel;