X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=System%2FCPUTime.hsc;h=b9678a3d50d98070defc67996e43ae0cc400a99e;hb=bf49462cfddfa22110a922d0417a5fc887fcf992;hp=a227b24b94513b0662281cc6d449a3e3e38e44b1;hpb=8dc47e1c982ae32f799e55266203b260f77aef43;p=ghc-base.git

diff --git a/System/CPUTime.hsc b/System/CPUTime.hsc
index a227b24..b9678a3 100644
--- a/System/CPUTime.hsc
+++ b/System/CPUTime.hsc
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- 
+-- |
 -- Module      :  System.CPUTime
 -- Copyright   :  (c) The University of Glasgow 2001
 -- License     :  BSD-style (see the file libraries/core/LICENSE)
@@ -8,8 +8,6 @@
 -- Stability   :  provisional
 -- Portability :  portable
 --
--- $Id: CPUTime.hsc,v 1.6 2002/02/11 12:29:13 simonmar Exp $
---
 -- The standard CPUTime library.
 --
 -----------------------------------------------------------------------------
@@ -22,22 +20,25 @@ module System.CPUTime
 
 import Prelude
 
+import Data.Ratio
+
+#ifdef __HUGS__
+import Hugs.Time ( getCPUTime, clockTicks )
+#endif
+
+#ifdef __GLASGOW_HASKELL__
 import Foreign
 import Foreign.C
 
-import Data.Ratio
-
 #include "HsBase.h"
+#endif
 
+#ifdef __GLASGOW_HASKELL__
 -- -----------------------------------------------------------------------------
--- Computation `getCPUTime' returns the number of picoseconds CPU time
+-- |Computation 'getCPUTime' returns the number of picoseconds CPU time
 -- used by the current program.  The precision of this result is
 -- implementation-dependent.
 
--- The `cpuTimePrecision' constant is the smallest measurable difference
--- in CPU time that the implementation can record, and is given as an
--- integral number of picoseconds.
-
 getCPUTime :: IO Integer
 getCPUTime = do
 
@@ -65,7 +66,7 @@ getCPUTime = do
 		* 1000000)
 
 type CRUsage = ()
-foreign import unsafe getrusage :: CInt -> Ptr CRUsage -> IO CInt
+foreign import ccall unsafe getrusage :: CInt -> Ptr CRUsage -> IO CInt
 #else
 # if defined(HAVE_TIMES)
     allocaBytes (#const sizeof(struct tms)) $ \ p_tms -> do
@@ -76,7 +77,7 @@ foreign import unsafe getrusage :: CInt -> Ptr CRUsage -> IO CInt
 			`div` fromIntegral clockTicks)
 
 type CTms = ()
-foreign import unsafe times :: Ptr CTms -> IO CClock
+foreign import ccall unsafe times :: Ptr CTms -> IO CClock
 # else
     ioException (IOError Nothing UnsupportedOperation 
 			 "getCPUTime"
@@ -108,19 +109,26 @@ foreign import unsafe times :: Ptr CTms -> IO CClock
 type FILETIME = ()
 type HANDLE = ()
 -- need proper Haskell names (initial lower-case character)
-foreign import "GetCurrentProcess" unsafe getCurrentProcess :: IO (Ptr HANDLE)
-foreign import "GetProcessTimes" unsafe getProcessTimes :: Ptr HANDLE -> Ptr FILETIME -> Ptr FILETIME -> Ptr FILETIME -> Ptr FILETIME -> IO CInt
+foreign import ccall unsafe "GetCurrentProcess" getCurrentProcess :: IO (Ptr HANDLE)
+foreign import ccall unsafe "GetProcessTimes" getProcessTimes :: Ptr HANDLE -> Ptr FILETIME -> Ptr FILETIME -> Ptr FILETIME -> Ptr FILETIME -> IO CInt
 
 #endif /* not _WIN32 */
+#endif /* __GLASGOW_HASKELL__ */
+
+-- |The 'cpuTimePrecision' constant is the smallest measurable difference
+-- in CPU time that the implementation can record, and is given as an
+-- integral number of picoseconds.
 
 cpuTimePrecision :: Integer
 cpuTimePrecision = round ((1000000000000::Integer) % fromIntegral (clockTicks))
 
+#ifdef __GLASGOW_HASKELL__
 clockTicks :: Int
 clockTicks =
 #if defined(CLK_TCK)
     (#const CLK_TCK)
 #else
     unsafePerformIO (sysconf (#const _SC_CLK_TCK) >>= return . fromIntegral)
-foreign import unsafe sysconf :: CInt -> IO CLong
+foreign import ccall unsafe sysconf :: CInt -> IO CLong
 #endif
+#endif /* __GLASGOW_HASKELL__ */