G4ios.cc

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// $Id: G4ios.cc 79149 2014-02-19 15:08:06Z gcosmo $
//
// 
// --------------------------------------------------------------
//      GEANT 4 class implementation file
//
// G4ios.cc
//
// History 1998 Nov. 3 Masayasu Nagamatu

#include "G4ios.hh"
#include "G4strstreambuf.hh"

#ifdef G4MULTITHREADED
  G4ThreadLocal G4strstreambuf *G4coutbuf_p = 0;
  G4ThreadLocal G4strstreambuf *G4cerrbuf_p = 0;
  G4ThreadLocal std::ostream *G4cout_p = 0;
  G4ThreadLocal std::ostream *G4cerr_p = 0;
  #define G4coutbuf (*G4coutbuf_p)
  #define G4cerrbuf (*G4cerrbuf_p)
  #define G4cout (*G4cout_p)
  #define G4cerr (*G4cerr_p)

  void G4iosInitialization()
  {
    if (G4coutbuf_p == 0) G4coutbuf_p = new G4strstreambuf;
    if (G4cerrbuf_p == 0) G4cerrbuf_p = new G4strstreambuf;
    if (G4cout_p == 0) G4cout_p = new std::ostream(G4coutbuf_p);
    if (G4cerr_p == 0) G4cerr_p = new std::ostream(G4cerrbuf_p);
  }

  void G4iosFinalization()
  {
      delete G4cout_p; G4cout_p = 0;
      delete G4cerr_p;  G4cerr_p = 0;
      delete G4coutbuf_p; G4coutbuf_p = 0;
      delete G4cerrbuf_p; G4cerrbuf_p = 0;
  }

  // These two functions are guaranteed to be called at load and
  // unload of the library containing this code.
  namespace
  {
#ifndef WIN32
    void setupG4ioSystem(void) __attribute__ ((constructor));
    void cleanupG4ioSystem(void) __attribute__((destructor));
#endif
    void setupG4ioSystem(void) { G4iosInitialization(); }
    void cleanupG4ioSystem(void) { G4iosFinalization(); }
  }

#else  // Sequential

  G4strstreambuf G4coutbuf;
  G4strstreambuf G4cerrbuf;
  std::ostream G4cout(&G4coutbuf);
  std::ostream G4cerr(&G4cerrbuf);

  void G4iosInitialization() {}
  void G4iosFinalization() {}

#endif