From d9d8ab1594dd83d25708dc0d20dfd8e068f1c2e3 Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Thu, 25 Jul 2002 18:37:00 +0000
Subject: [PATCH] [project @ 2002-07-25 18:36:59 by sof] Expose
 printAllThreads() in non-DEBUG builds; of some use when
 debugging ConcHask code and want a dump of the current
 state of the system's threads.

Not provided via a library, so to use, do

 foreign import call unsafe printAllThreads :: IO ()
---
 ghc/rts/Schedule.c |   19 ++++++++++++-------
 ghc/rts/Schedule.h |   12 +++++++-----
 2 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/ghc/rts/Schedule.c b/ghc/rts/Schedule.c
index da57bec..2e2bbec 100644
--- a/ghc/rts/Schedule.c
+++ b/ghc/rts/Schedule.c
@@ -1,5 +1,5 @@
 /* ---------------------------------------------------------------------------
- * $Id: Schedule.c,v 1.150 2002/07/19 18:45:21 sof Exp $
+ * $Id: Schedule.c,v 1.151 2002/07/25 18:36:59 sof Exp $
  *
  * (c) The GHC Team, 1998-2000
  *
@@ -84,6 +84,7 @@
 #include "StgRun.h"
 #include "StgStartup.h"
 #include "Hooks.h"
+#define COMPILING_SCHEDULER
 #include "Schedule.h"
 #include "StgMiscClosures.h"
 #include "Storage.h"
@@ -3549,11 +3550,12 @@ detectBlackHoles( void )
 //@subsection Debugging Routines
 
 /* -----------------------------------------------------------------------------
-   Debugging: why is a thread blocked
+ * Debugging: why is a thread blocked
+ * [Also provides useful information when debugging threaded programs
+ *  at the Haskell source code level, so enable outside of DEBUG. --sof 7/02]
    -------------------------------------------------------------------------- */
 
-#ifdef DEBUG
-
+static
 void
 printThreadBlockage(StgTSO *tso)
 {
@@ -3601,6 +3603,7 @@ printThreadBlockage(StgTSO *tso)
   }
 }
 
+static
 void
 printThreadStatus(StgTSO *tso)
 {
@@ -3627,15 +3630,15 @@ printAllThreads(void)
   ullong_format_string(TIME_ON_PROC(CurrentProc), 
 		       time_string, rtsFalse/*no commas!*/);
 
-  sched_belch("all threads at [%s]:", time_string);
+  fprintf(stderr, "all threads at [%s]:\n", time_string);
 # elif defined(PAR)
   char time_string[TIME_STR_LEN], node_str[NODE_STR_LEN];
   ullong_format_string(CURRENT_TIME,
 		       time_string, rtsFalse/*no commas!*/);
 
-  sched_belch("all threads at [%s]:", time_string);
+  fprintf(stderr,"all threads at [%s]:\n", time_string);
 # else
-  sched_belch("all threads:");
+  fprintf(stderr,"all threads:\n");
 # endif
 
   for (t = all_threads; t != END_TSO_QUEUE; t = t->global_link) {
@@ -3647,6 +3650,8 @@ printAllThreads(void)
   }
 }
     
+#ifdef DEBUG
+
 /* 
    Print a whole blocking queue attached to node (debugging only).
 */
diff --git a/ghc/rts/Schedule.h b/ghc/rts/Schedule.h
index 0ddf00f..7722802 100644
--- a/ghc/rts/Schedule.h
+++ b/ghc/rts/Schedule.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Schedule.h,v 1.34 2002/06/19 20:45:15 sof Exp $
+ * $Id: Schedule.h,v 1.35 2002/07/25 18:37:00 sof Exp $
  *
  * (c) The GHC Team 1998-1999
  *
@@ -183,14 +183,16 @@ typedef struct StgMainThread_ {
  */
 extern StgMainThread *main_threads;
 
+void printAllThreads(void);
+#ifdef COMPILING_SCHEDULER
+static void printThreadBlockage(StgTSO *tso);
+static void printThreadStatus(StgTSO *tso);
+#endif
 /* debugging only 
  */
 #ifdef DEBUG
-void printThreadBlockage(StgTSO *tso);
-void printThreadStatus(StgTSO *tso);
-void printAllThreads(void);
-#endif
 void print_bq (StgClosure *node);
+#endif
 #if defined(PAR)
 void print_bqe (StgBlockingQueueElement *bqe);
 #endif
-- 
1.7.10.4