[project @ 2002-11-05 14:10:44 by simonpj]

[ghc-hetmet.git] / ghc / rts / RtsStartup.c

diff --git a/ghc/rts/RtsStartup.c b/ghc/rts/RtsStartup.c
index 438304a..2a288b7 100644 (file)
--- a/ghc/rts/RtsStartup.c
+++ b/ghc/rts/RtsStartup.c
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: RtsStartup.c,v 1.57 2001/11/26 16:54:22 simonmar Exp $
+ * $Id: RtsStartup.c,v 1.66 2002/08/16 13:29:06 simonmar Exp $
  *
  * (c) The GHC Team, 1998-2000
  *
@@ -25,6 +25,7 @@
 #include "Prelude.h"           /* fixupRTStoPreludeRefs */
 #include "HsFFI.h"
 #include "Linker.h"
+#include "ThreadLabels.h"
 
 #if defined(RTS_GTK_FRONTPANEL)
 #include "FrontPanel.h"
@@ -49,6 +50,8 @@
 # include "LLC.h"
 #endif
 
+#include <stdlib.h>
+
 /*
  * Flag Structure
  */
@@ -86,10 +89,15 @@ void
 startupHaskell(int argc, char *argv[], void (*init_root)(void))
 {
    /* To avoid repeated initialisations of the RTS */
-   if (rts_has_started_up)
-     return;
-   else
-     rts_has_started_up=1;
+  if (rts_has_started_up) {
+    /* RTS is up and running, so only run the per-module initialisation code */
+    if (init_root) {
+      initModules(init_root);
+    }
+    return;
+  } else {
+    rts_has_started_up=1;
+  }
 
     /* The very first thing we do is grab the start time...just in case we're
      * collecting timing statistics.
@@ -151,6 +159,9 @@ startupHaskell(int argc, char *argv[], void (*init_root)(void))
     /* initialise the stable pointer table */
     initStablePtrTable();
 
+    /* initialise thread label table (tso->char*) */
+    initThreadLabelTable();
+
 #if defined(PROFILING) || defined(DEBUG)
     initProfiling1();
 #endif
@@ -162,14 +173,8 @@ startupHaskell(int argc, char *argv[], void (*init_root)(void))
     initProfiling2();
 #endif
 
-    /* start the ticker */
-    install_vtalrm_handler();
-    initialize_virtual_timer(TICK_MILLISECS);
-
-    /* start our haskell execution tasks */
-#ifdef SMP
-    startTasks();
-#endif
+    /* start the virtual timer 'subsystem'. */
+    startVirtTimer(TICK_MILLISECS);
 
     /* Initialise the stats department */
     initStats();
@@ -221,7 +226,6 @@ startupHaskell(int argc, char *argv[], void (*init_root)(void))
  */
 #define INIT_STACK_BLOCKS  4
 F_ *init_stack = NULL;
-nat init_sp = 0;
 
 static void
 initModules ( void (*init_root)(void) )
@@ -232,9 +236,10 @@ initModules ( void (*init_root)(void) )
 #else
 #define cap MainCapability
 #endif
+    nat init_sp;
 
     init_sp = 0;
-    bd = allocGroup(4);
+    bd = allocGroup(INIT_STACK_BLOCKS);
     init_stack = (F_ *)bd->start;
     init_stack[init_sp++] = (F_)stg_init_ret;
     init_stack[init_sp++] = (F_)__stginit_Prelude;
@@ -273,10 +278,14 @@ shutdownHaskell(void)
 {
   if (!rts_has_started_up)
      return;
-
+  rts_has_started_up=0;
+  
   /* start timing the shutdown */
   stat_startExit();
 
+  /* stop all running tasks */
+  exitScheduler();
+
 #if !defined(GRAN)
   /* Finalize any remaining weak pointers */
   finalizeWeakPointersNow();
@@ -288,11 +297,8 @@ shutdownHaskell(void)
     end_gr_simulation();
 #endif
 
-  /* stop all running tasks */
-  exitScheduler();
-
   /* stop the ticker */
-  initialize_virtual_timer(0);
+  stopVirtTimer();
   
   /* reset the standard file descriptors to blocking mode */
   resetNonBlockingFd(0);
@@ -322,7 +328,7 @@ shutdownHaskell(void)
 #endif
 
 #if defined(PROFILING) 
-  report_ccs_profiling();
+  reportCCSProfiling();
 #endif
 
 #if defined(PROFILING) || defined(DEBUG)
@@ -339,8 +345,6 @@ shutdownHaskell(void)
 #if defined(TICKY_TICKY)
   if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
 #endif
-
-  rts_has_started_up=0;
 }
 
 /*