//
// Written by Curtis Olson, started May 1997.
//
-// Copyright (C) 1997 - 2002 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1997 - 2002 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#if defined(__linux__) && defined(__i386__)
# include <fpu_control.h>
-# include <signal.h>
#endif
+#include <errno.h>
+#include <signal.h>
#include <stdlib.h>
+#include <stdio.h>
#include <simgear/compiler.h>
#include <simgear/structure/exception.hxx>
#ifdef HAVE_WINDOWS_H
# include <windows.h>
# include <float.h>
+# include <pthread.h>
#endif
#include "fg_os.hxx"
# include <console.h> // -dw- for command line dialog
#endif
+char *homedir = ::getenv( "HOME" );
+char *hostname = ::getenv( "HOSTNAME" );
+bool free_hostname = false;
+
// foreward declaration.
void fgExitCleanup();
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow) {
+ logbuf::has_no_console();
main( __argc, __argv );
}
#endif
#if defined( sgi )
#include <sys/fpu.h>
+#include <sys/sysmp.h>
+#include <unistd.h>
/*
- set the special "flush zero" bit (FS, bit 24) in the Control Status
- Register of the FPU of R4k and beyond so that the result of any
- underflowing operation will be clamped to zero, and no exception of
- any kind will be generated on the CPU. This has no effect on an
- R3000.
-
- the FS bit is inherited by processes fork()ed out of this one,
- but it is not inherited across an exec(). so anytime you exec()
- a process, you must re-set the FS bit in that process.
- */
+ * set the special "flush zero" bit (FS, bit 24) in the Control Status
+ * Register of the FPU of R4k and beyond so that the result of any
+ * underflowing operation will be clamped to zero, and no exception of
+ * any kind will be generated on the CPU. This has no effect on an
+ * R3000.
+ */
void flush_fpe(void)
{
union fpc_csr f;
}
#endif
+static void fg_terminate() {
+ cerr << endl <<
+ "Uncaught Exception: you should see a meaningful error message\n"
+ "here, but your GLUT (or SDL) library was apparently compiled\n"
+ "and/or linked without exception support. Please complain to\n"
+ "its provider!"
+ << endl << endl;
+ abort();
+}
+
int _bootstrap_OSInit;
// Main entry point; catch any exceptions that have made it this far.
int main ( int argc, char **argv ) {
+#ifdef PTW32_STATIC_LIB
+ // Initialise static pthread win32 lib
+ pthread_win32_process_attach_np ();
+#endif
_bootstrap_OSInit = 0;
- // Enable floating-point exceptions for Linux/x86
#if defined(__linux__) && defined(__i386__)
+ // Enable floating-point exceptions for Linux/x86
initFPE();
+#elif defined(__FreeBSD__)
+ // Ignore floating-point exceptions on FreeBSD
+ signal(SIGFPE, SIG_IGN);
#endif
+ signal(SIGPIPE, SIG_IGN);
#if defined(sgi)
flush_fpe();
+
+ // Bind all non-rendering threads to CPU1
+ // This will reduce the jitter caused by them to an absolute minimum,
+ // but it will only work with superuser authority.
+ if ( geteuid() == 0 )
+ {
+ sysmp(MP_CLOCK, 0); // bind the timer only to CPU0
+ sysmp(MP_ISOLATE, 1 ); // Isolate CPU1
+ sysmp(MP_NONPREEMPTIVE, 1 ); // disable process time slicing on CPU1
+ }
#endif
// Enable floating-point exceptions for Windows
// FIXME: add other, more specific
// exceptions.
try {
+ std::set_terminate(fg_terminate);
atexit(fgExitCleanup);
fgMainInit(argc, argv);
- } catch (sg_throwable &t) {
+ } catch (const sg_throwable &t) {
// We must use cerr rather than
// logging, since logging may be
// disabled.
- cerr << "Fatal error: " << t.getFormattedMessage()
- << "\n (received from " << t.getOrigin() << ')' << endl;
- exit(1);
+ cerr << "Fatal error: " << t.getFormattedMessage() << endl;
+ if (!t.getOrigin().empty())
+ cerr << " (received from " << t.getOrigin() << ')' << endl;
+
+ } catch (const string &s) {
+ cerr << "Fatal error: " << s << endl;
+
+ } catch (const char *s) {
+ cerr << "Fatal error: " << s << endl;
+
+ } catch (...) {
+ cerr << "Unknown exception in the main loop. Aborting..." << endl;
+ if (errno)
+ perror("Possible cause");
}
return 0;
if (_bootstrap_OSInit != 0)
fgSetMouseCursor(MOUSE_CURSOR_POINTER);
- if (globals)
- delete globals;
+ delete globals;
+
+ if (free_hostname && hostname != NULL)
+ free(hostname);
}