/* -----------------------------------------------------------------------------
- * $Id: RtsStartup.c,v 1.4 1999/01/22 10:58:43 simonm Exp $
+ * $Id: RtsStartup.c,v 1.15 1999/07/02 09:31:54 simonmar Exp $
+ *
+ * (c) The GHC Team, 1998-1999
*
* Main function for a standalone Haskell program.
*
#include "RtsUtils.h"
#include "RtsFlags.h"
#include "Storage.h" /* initStorage, exitStorage */
-#include "StablePtr.h" /* initStablePtrTable */
+#include "StablePriv.h" /* initStablePtrTable */
#include "Schedule.h" /* initScheduler */
#include "Stats.h" /* initStats */
#include "Weak.h"
*/
struct RTS_FLAGS RtsFlags;
-extern void startupHaskell(int argc, char *argv[])
+static int rts_has_started_up = 0;
+
+void
+startupHaskell(int argc, char *argv[])
{
+#ifdef ENABLE_WIN32_DLL_SUPPORT
+ int i;
+#endif
+
+ /* To avoid repeated initialisations of the RTS */
+ if (rts_has_started_up)
+ return;
+ else
+ rts_has_started_up=1;
+
#if defined(PAR)
int nPEs = 0; /* Number of PEs */
#endif
prog_argc = argc;
prog_argv = argv;
-#if defined(PAR)
+#ifdef PAR
/* Initialise the parallel system -- before initHeap! */
initParallelSystem();
/* And start GranSim profiling if required: omitted for now
#if 0
initUserSignals();
#endif
+
+ /* When the RTS and Prelude live in separate DLLs,
+ we need to patch up the char- and int-like tables
+ that the RTS keep after both DLLs have been loaded,
+ filling in the tables with references to where the
+ static info tables have been loaded inside the running
+ process.
+ */
+#ifdef ENABLE_WIN32_DLL_SUPPORT
+ for(i=0;i<=255;i++)
+ (CHARLIKE_closure[i]).header.info = (const StgInfoTable*)&Czh_static_info;
+ for(i=0;i<=32;i++)
+ (INTLIKE_closure[i]).header.info = (const StgInfoTable*)&Izh_static_info;
+
+#endif
/* Record initialization times */
end_init();
}
void
shutdownHaskell(void)
{
- /* Finalise any remaining weak pointers */
- finaliseWeakPointersNow();
+ if (!rts_has_started_up)
+ return;
+
+ /* Finalize any remaining weak pointers */
+ finalizeWeakPointersNow();
#if defined(GRAN)
#error FixMe.
if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
#endif
- /*
- This fflush is important, because: if "main" just returns,
- then we will end up in pre-supplied exit code that will close
- streams and flush buffers. In particular we have seen: it
- will close fd 0 (stdin), then flush fd 1 (stdout), then <who
- cares>...
-
- But if you're playing with sockets, that "close fd 0" might
- suggest to the daemon that all is over, only to be presented
- with more stuff on "fd 1" at the flush.
-
- The fflush avoids this sad possibility.
- */
- fflush(stdout);
+ rts_has_started_up=0;
}