From 5388e15c26d47322d2708008748b811af19c89a7 Mon Sep 17 00:00:00 2001
From: Konstantin LEONTEV <kleontev@ubuntu2004-01.nnov.opencascade.com>
Date: Fri, 7 Oct 2022 14:09:44 +0300
Subject: [PATCH] dynamic_log_messages: Added initial libSALOMELog files.

---
 src/SALOMELocalTrace/libSALOMELog.cxx | 70 +++++++++++++++++++++++++++
 src/SALOMELocalTrace/libSALOMELog.hxx | 37 ++++++++++++++
 2 files changed, 107 insertions(+)
 create mode 100644 src/SALOMELocalTrace/libSALOMELog.cxx
 create mode 100644 src/SALOMELocalTrace/libSALOMELog.hxx

diff --git a/src/SALOMELocalTrace/libSALOMELog.cxx b/src/SALOMELocalTrace/libSALOMELog.cxx
new file mode 100644
index 000000000..05bc4848b
--- /dev/null
+++ b/src/SALOMELocalTrace/libSALOMELog.cxx
@@ -0,0 +1,70 @@
+// Copyright (C) 2007-2022  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//  Author : Konstantin Leontev (OpenCascade)
+//  Module : KERNEL
+//  $Header$
+// Cf. C++ Users Journal, June 2004, Tracing Application Execution, Tomer Abramson
+//
+
+#include <cstdlib>
+
+namespace SALOME
+{
+
+// ============================================================================
+/*!
+ *  Called by any log message macros to decide about log output in Release and
+ *  Debug mode dynamically rely on SALOME_VERBOSE environment variable.
+ *  Checks SALOME_VERBOSE only on the very first call and returns cached result
+ *  for all followed calls.
+ *  Returns true if SALOME_VERBOSE is positioned and not empty and if its
+ *  numeric value greater than 0.
+ */
+// ============================================================================
+
+  bool VerbosityActivated()
+  {
+    auto isEnvVarSet = []() -> bool
+    {
+      const char* envVar = std::getenv("SALOME_VERBOSE");
+
+      if (envVar && (envVar[0] != '\0'))
+      {
+        try
+        {
+          const long long numValue = std::stoll(envVar);
+          return numValue > 0;
+        }
+        catch(const std::exception& e)
+        {
+          std::cerr << e.what() << '\n';
+        }
+      }
+
+      return false;
+    };
+
+    static const bool isActivated = isEnvVarSet();
+    return isActivated;
+  }
+}
diff --git a/src/SALOMELocalTrace/libSALOMELog.hxx b/src/SALOMELocalTrace/libSALOMELog.hxx
new file mode 100644
index 000000000..f5d5dc671
--- /dev/null
+++ b/src/SALOMELocalTrace/libSALOMELog.hxx
@@ -0,0 +1,37 @@
+// Copyright (C) 2007-2022  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//  File   : libSALOMELog.hxx
+//  Author : Konstantin Leontev (OpenCascade)
+//  Module : KERNEL
+//  $Header$
+//
+#ifndef _LIBSALOMELOG_HXX_
+#define _LIBSALOMELOG_HXX_
+
+
+namespace SALOME
+{
+  bool VerbosityActivated();
+}
+
+#endif
-- 
2.39.2