[project @ 2003-08-20 15:54:45 by panne]

[ghc-base.git] / System / CPUTime.hsc

diff --git a/System/CPUTime.hsc b/System/CPUTime.hsc
index 25098fe..b9678a3 100644 (file)
--- 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 1.7 2002/04/24 16:03:39 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
 
@@ -112,10 +113,16 @@ foreign import ccall unsafe "GetCurrentProcess" getCurrentProcess :: IO (Ptr HAN
 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)
@@ -124,3 +131,4 @@ clockTicks =
     unsafePerformIO (sysconf (#const _SC_CLK_TCK) >>= return . fromIntegral)
 foreign import ccall unsafe sysconf :: CInt -> IO CLong
 #endif
+#endif /* __GLASGOW_HASKELL__ */