Silence annoying GEANT4 warnings and banners during operation.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/mute.cc b/src/mute.cc
new file mode 100644
index 0000000..e13814f
--- /dev/null
+++ b/src/mute.cc
@@ -0,0 +1,41 @@
+#include <geant4/G4ios.hh>
+
+class discard_streambuf : public std::streambuf {
+public:
+  discard_streambuf() { };
+  
+  virtual int_type overflow(int_type c) {
+    // Do nothing with this character
+    return c;
+  };
+};
+
+discard_streambuf discard;
+std::streambuf *g4cout_orig = G4cout.rdbuf();
+std::streambuf *g4cerr_orig = G4cerr.rdbuf();
+
+void mute_g4mute() {
+  G4cout.rdbuf(&discard);
+  G4cerr.rdbuf(&discard);
+}
+
+void mute_g4unmute() {
+  G4cout.rdbuf(g4cout_orig);
+  G4cerr.rdbuf(g4cerr_orig);
+}
+
+
+#include <boost/python.hpp>
+
+using namespace boost::python;
+
+void export_mute()
+{
+  def("g4mute", mute_g4mute, default_call_policies(), "Silence all GEANT4 output");
+  def("g4unmute", mute_g4unmute, default_call_policies(), "Re-enable GEANT4 output after calling ``g4mute()``.");
+}
+
+BOOST_PYTHON_MODULE(mute)
+{
+  export_mute();
+}