System/Posix/Types.hs

   1 {-# OPTIONS -fno-implicit-prelude #-}
   2 -----------------------------------------------------------------------------
   3 -- |
   4 -- Module      :  System.Posix.Types
   5 -- Copyright   :  (c) The University of Glasgow 2002
   6 -- License     :  BSD-style (see the file libraries/base/LICENSE)
   7 --
   8 -- Maintainer  :  libraries@haskell.org
   9 -- Stability   :  provisional
  10 -- Portability :  non-portable (requires POSIX)
  11 --
  12 -- POSIX data types: Haskell equivalents of the types defined by the
  13 -- @\<sys\/types.h>@ C header on a POSIX system.
  14 --
  15 -----------------------------------------------------------------------------
  16
  17 #include "ghcconfig.h"
  18
  19 module System.Posix.Types (
  20
  21   -- * POSIX data types
  22 #if defined(HTYPE_DEV_T)
  23   CDev,
  24 #endif
  25 #if defined(HTYPE_INO_T)
  26   CIno,
  27 #endif
  28 #if defined(HTYPE_MODE_T)
  29   CMode,
  30 #endif
  31 #if defined(HTYPE_OFF_T)
  32   COff,
  33 #endif
  34 #if defined(HTYPE_PID_T)
  35   CPid,
  36 #endif
  37 #if defined(HTYPE_SIZE_T) || defined(HTYPE_SSIZE_T)
  38   CSsize,
  39 #endif
  40
  41 #if defined(HTYPE_GID_T)
  42   CGid,
  43 #endif
  44 #if defined(HTYPE_NLINK_T)
  45   CNlink,
  46 #endif
  47 #if defined(HTYPE_UID_T)
  48   CUid,
  49 #endif
  50 #if defined(HTYPE_CC_T)
  51   CCc,
  52 #endif
  53 #if defined(HTYPE_SPEED_T)
  54   CSpeed,
  55 #endif
  56 #if defined(HTYPE_TCFLAG_T)
  57   CTcflag,
  58 #endif
  59 #if defined(HTYPE_RLIM_T)
  60   CRLim,
  61 #endif
  62
  63   Fd(..),
  64
  65 #if defined(HTYPE_NLINK_T)
  66   LinkCount,
  67 #endif
  68 #if defined(HTYPE_UID_T)
  69   UserID,
  70 #endif
  71 #if defined(HTYPE_GID_T)
  72   GroupID,
  73 #endif
  74
  75   ByteCount,
  76   ClockTick,
  77   EpochTime,
  78   FileOffset,
  79   ProcessID,
  80   ProcessGroupID,
  81   DeviceID,
  82   FileID,
  83   FileMode,
  84   Limit
  85  ) where
  86
  87 import Foreign
  88 import Foreign.C
  89 import Data.Typeable
  90 import Data.Bits
  91
  92 #ifdef __GLASGOW_HASKELL__
  93 import GHC.Base
  94 import GHC.Enum
  95 import GHC.Num
  96 import GHC.Real
  97 import GHC.Prim
  98 import GHC.Read
  99 import GHC.Show
 100 #else
 101 import Control.Monad
 102 #endif
 103
 104 #include "Typeable.h"
 105 #include "CTypes.h"
 106
 107 #if defined(HTYPE_DEV_T)
 108 ARITHMETIC_TYPE(CDev,tyConCDev,"CDev",HTYPE_DEV_T)
 109 #endif
 110 #if defined(HTYPE_INO_T)
 111 INTEGRAL_TYPE(CIno,tyConCIno,"CIno",HTYPE_INO_T)
 112 #endif
 113 #if defined(HTYPE_MODE_T)
 114 INTEGRAL_TYPE(CMode,tyConCMode,"CMode",HTYPE_MODE_T)
 115 #endif
 116 #if defined(HTYPE_OFF_T)
 117 INTEGRAL_TYPE(COff,tyConCOff,"COff",HTYPE_OFF_T)
 118 #endif
 119 #if defined(HTYPE_PID_T)
 120 INTEGRAL_TYPE(CPid,tyConCPid,"CPid",HTYPE_PID_T)
 121 #endif
 122
 123 #if defined(HTYPE_SIZE_T)
 124 INTEGRAL_TYPE(CSsize,tyConCSsize,"CSsize",HTYPE_SIZE_T)
 125 #endif
 126
 127 #if defined(HTYPE_SSIZE_T) && !defined(HTYPE_SIZE_T)
 128 INTEGRAL_TYPE(CSsize,tyConCSsize,"CSsize",HTYPE_SSIZE_T)
 129 #endif
 130
 131 #if defined(HTYPE_GID_T)
 132 INTEGRAL_TYPE(CGid,tyConCGid,"CGid",HTYPE_GID_T)
 133 #endif
 134 #if defined(HTYPE_NLINK_T)
 135 INTEGRAL_TYPE(CNlink,tyConCNlink,"CNlink",HTYPE_NLINK_T)
 136 #endif
 137
 138 #if defined(HTYPE_UID_T)
 139 INTEGRAL_TYPE(CUid,tyConCUid,"CUid",HTYPE_UID_T)
 140 #endif
 141 #if defined(HTYPE_CC_T)
 142 ARITHMETIC_TYPE(CCc,tyConCCc,"CCc",HTYPE_CC_T)
 143 #endif
 144 #if defined(HTYPE_SPEED_T)
 145 ARITHMETIC_TYPE(CSpeed,tyConCSpeed,"CSpeed",HTYPE_SPEED_T)
 146 #endif
 147 #if defined(HTYPE_TCFLAG_T)
 148 INTEGRAL_TYPE(CTcflag,tyConCTcflag,"CTcflag",HTYPE_TCFLAG_T)
 149 #endif
 150 #if defined(HTYPE_RLIM_T)
 151 INTEGRAL_TYPE(CRLim,tyConCRlim,"CRLim",HTYPE_RLIM_T)
 152 #endif
 153
 154 -- ToDo: blksize_t, clockid_t, blkcnt_t, fsblkcnt_t, fsfilcnt_t, id_t, key_t
 155 -- suseconds_t, timer_t, useconds_t
 156
 157 -- Make an Fd type rather than using CInt everywhere
 158 INTEGRAL_TYPE(Fd,tyConFd,"Fd",CInt)
 159
 160 -- nicer names, and backwards compatibility with POSIX library:
 161 #if defined(HTYPE_NLINK_T)
 162 type LinkCount      = CNlink
 163 #endif
 164 #if defined(HTYPE_UID_T)
 165 type UserID         = CUid
 166 #endif
 167 #if defined(HTYPE_GID_T)
 168 type GroupID        = CGid
 169 #endif
 170
 171 type ByteCount      = CSize
 172 type ClockTick      = CClock
 173 type EpochTime      = CTime
 174 type DeviceID       = CDev
 175 type FileID         = CIno
 176 type FileMode       = CMode
 177 type ProcessID      = CPid
 178 type FileOffset     = COff
 179 type ProcessGroupID = CPid
 180 type Limit          = CLong
 181