# include <config.h>
#endif
-#if defined(__linux__) && defined(__i386__)
+#ifdef HAVE_WINDOWS_H
+#include <windows.h>
+#endif
+
+#if defined(HAVE_FEENABLEEXCEPT)
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <fenv.h>
+#elif defined(__linux__) && defined(__i386__)
# include <fpu_control.h>
#endif
+#ifndef _WIN32
+# include <unistd.h> // for gethostname()
+#endif
+
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <simgear/compiler.h>
#include <simgear/structure/exception.hxx>
#include <simgear/debug/logstream.hxx>
+#include <simgear/math/SGMath.hxx>
+#include <cstring>
#include <iostream>
-SG_USING_STD(cerr);
-SG_USING_STD(endl);
+using std::cerr;
+using std::endl;
#include "main.hxx"
#include "globals.hxx"
+#include "fg_props.hxx"
+#include "fgviewer.hxx"
#include "fg_os.hxx"
-char *homedir = ::getenv( "HOME" );
-char *hostname = ::getenv( "HOSTNAME" );
+char *homedir = NULL;
+char *hostname = NULL;
bool free_hostname = false;
// foreward declaration.
void fgExitCleanup();
-#if defined(__linux__) && defined(__i386__)
+static bool fpeAbort = false;
+static void initFPE();
+
+#if defined(HAVE_FEENABLEEXCEPT)
+static void handleFPE(int);
+static void
+initFPE ()
+{
+ if (fpeAbort) {
+ int except = fegetexcept();
+ feenableexcept(except | FE_DIVBYZERO | FE_INVALID);
+ } else {
+ signal(SIGFPE, handleFPE);
+ }
+}
-static void handleFPE (int);
+static void handleFPE(int)
+{
+ feclearexcept(FE_ALL_EXCEPT);
+ signal(SIGFPE, handleFPE);
+}
+#elif defined(__linux__) && defined(__i386__)
+static void handleFPE(int);
static void
initFPE ()
{
initFPE();
SG_LOG(SG_GENERAL, SG_ALERT, "Floating point interrupt (SIGFPE)");
}
+#else
+static void initFPE()
+{
+}
#endif
#ifdef _MSC_VER
// Main entry point; catch any exceptions that have made it this far.
int main ( int argc, char **argv ) {
+#if _MSC_VER
+ // Don't show blocking "no disk in drive" error messages on Windows 7,
+ // silently return errors to application instead.
+ // See Microsoft MSDN #ms680621: "GUI apps should specify SEM_NOOPENFILEERRORBOX"
+ SetErrorMode(SEM_NOOPENFILEERRORBOX);
+
+ // Windows has no $HOME aka %HOME%, so we have to construct the full path.
+ // make sure it fits into the buffer. Max. path length is 255, but who knows
+ // what's in these environment variables?
+ char homepath[256] = "";
+ homepath[sizeof(homepath)-1] = 0;
+ strncpy( homepath, ::getenv("APPDATA"), sizeof(homepath)-1 );
+ strncat( homepath, "\\flightgear.org", sizeof(homepath)-strlen(homepath)-1 );
+
+ homedir = strdup(homepath);
+ hostname = ::getenv( "COMPUTERNAME" );
+#else
+ // Unix(alike) systems
+ char _hostname[256];
+ gethostname(_hostname, 256);
+ hostname = strdup(_hostname);
+ free_hostname = true;
+
+ homedir = ::getenv( "HOME" );
+
+ signal(SIGPIPE, SIG_IGN);
+#endif
#ifdef PTW32_STATIC_LIB
// Initialise static pthread win32 lib
#endif
_bootstrap_OSInit = 0;
-#if defined(__linux__) && defined(__i386__)
- // Enable floating-point exceptions for Linux/x86
- initFPE();
-#elif defined(__FreeBSD__)
+#if defined(__FreeBSD__)
// Ignore floating-point exceptions on FreeBSD
- signal(SIGFPE, SIG_IGN);
-#endif
-#ifndef _MSC_VER
- signal(SIGPIPE, SIG_IGN);
+ signal(SIGFPE, SIG_IGN);
+#else
+ // Maybe Enable floating-point exceptions on Linux
+ for (int i = 0; i < argc; ++i) {
+ if (!strcmp("--enable-fpe", argv[i])) {
+ fpeAbort = true;
+ break;
+ }
+ }
+ initFPE();
#endif
#if defined(sgi)
#if defined( HAVE_BC5PLUS )
_control87(MCW_EM, MCW_EM); /* defined in float.h */
#endif
+
+ bool fgviewer = false;
+ for (int i = 0; i < argc; ++i) {
+ if (!strcmp("--fgviewer", argv[i])) {
+ fgviewer = true;
+ break;
+ }
+ }
// FIXME: add other, more specific
// exceptions.
try {
std::set_terminate(fg_terminate);
atexit(fgExitCleanup);
- fgMainInit(argc, argv);
+ if (fgviewer)
+ fgviewerMain(argc, argv);
+ else
+ fgMainInit(argc, argv);
+
+
} catch (const sg_throwable &t) {
// We must use cerr rather than
// logging, since logging may be
// disabled.
cerr << "Fatal error: " << t.getFormattedMessage() << endl;
- if (!t.getOrigin().empty())
+ if (std::strlen(t.getOrigin()) != 0)
cerr << " (received from " << t.getOrigin() << ')' << endl;
} catch (const string &s) {