[project @ 2001-08-20 14:44:05 by simonmar]

This StablePtr test is old, most of the features it uses are
deprecated and have been replaced by newer mechanisms (eg. foreign
export) which is tested elsewhere.

ghc/tests/io/Makefile

-TOP = ..
-include $(TOP)/mk/boilerplate.mk
-
-SUBDIRS = should_run
-
-include $(TOP)/mk/target.mk
-

ghc/tests/io/stable001/Main.hs

--- This is a rather exciting experiment in using the new call
--- makeStablePtr# and performIO. It doesn't do much but it took an
--- incredible effort to get it to do it.
-
-import Stable
-import GlaExts
-import CString
-
--- module Main(main) where
-
-main =	makeStablePtr test	>>= \ stablePtr ->
-	((_casm_GC_ ``SaveAllStgRegs(); test1(%0); RestoreAllStgRegs();'' stablePtr)
-						:: PrimIO ())
-				>>= \ _ ->
-	return ()
-
-test :: IO Int
-test =
-	let f x = sum [1..x]
-	    f :: Int -> Int
-	in 
-	_ccall_ printf
-	      (packString "The stable pointer has just been used to print this number %d\n") (f 100)
-				>>= \ _ ->
-	return 5
-

ghc/tests/io/stable001/Main.lhs

-\begin{code}
-module Main(main) where
-
---import PreludeGlaST
---old:import GHCio(stThen)
---old:import PreludeGlaMisc
-
-main =	makeStablePtr test	>>= \ stablePtr ->
-	((_casm_GC_ ``SaveAllStgRegs(); test1(%0); RestoreAllStgRegs();'' stablePtr)
-						:: PrimIO ())
-				>>= \ _ ->
-	return ()
-
-test :: IO Int
-test =
-	let f x = sum [1..x]
-	    f :: Int -> Int
-	in 
-	_ccall_ printf
-	      "The stable pointer has just been used to print this number %d\n" (f 100)
-				>>= \ _ ->
-	return 5
-\end{code}
-
-This is a rather exciting experiment in using the new call
-@makeStablePtr#@ and @performIO@. It doesn't do much but it took an
-incredible effort to get it to do it.
-
-\begin{code}[C-code]
-#define NULL_REG_MAP
-#include "stgdefs.h"
-
-int
-test1( stableIOPtr )
-  StgStablePtr stableIOPtr;
-{
-  int i;
-  int result;
-
-  printf("Using stable pointer %x\n", stableIOPtr);
-
-  for( i = 0; i != 10; i = i + 1 ) {
-    printf( "Calling stable pointer for %dth time\n", i );
-    performIO( stableIOPtr );
-    printf( "Returned after stable pointer\n" );
-  }
-
-  return 1;
-}
-\end{code}

ghc/tests/io/stable001/Makefile

-TOP = ../..
-include $(TOP)/mk/boilerplate.mk
-SRC_HC_OPTS += -fglasgow-exts
-include $(TOP)/mk/should_run.mk
-
-SRC_HC_OPTS += -dcore-lint
-
-.PRECIOUS: %.o %.bin
-include $(TOP)/mk/target.mk
-

ghc/tests/io/stable001/cbits.c

-#define NULL_REG_MAP
-#include "../../../includes/Stg.h"
-
-int
-test1( stableIOPtr )
-  StgStablePtr stableIOPtr;
-{
-  int i;
-  int result;
-
-  printf("Using stable pointer %x\n", stableIOPtr);
-
-  for( i = 0; i != 10; i = i + 1 ) {
-    printf( "Calling stable pointer for %dth time\n", i );
-    performIO( stableIOPtr );
-    printf( "Returned after stable pointer\n" );
-  }
-
-  return 1;
-}

ghc/tests/io/stable001/registers.h

-#define UpdateStgRegs _SaveStgRegs()
-#define ReloadStgRegs _RestoreStgRegs()