System/Posix/Types.hs

   1 {-# OPTIONS_GHC -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 "HsBaseConfig.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_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 "CTypes.h"
 105
 106 #if defined(HTYPE_DEV_T)
 107 ARITHMETIC_TYPE(CDev,tyConCDev,"CDev",HTYPE_DEV_T)
 108 #endif
 109 #if defined(HTYPE_INO_T)
 110 INTEGRAL_TYPE(CIno,tyConCIno,"CIno",HTYPE_INO_T)
 111 #endif
 112 #if defined(HTYPE_MODE_T)
 113 INTEGRAL_TYPE(CMode,tyConCMode,"CMode",HTYPE_MODE_T)
 114 #endif
 115 #if defined(HTYPE_OFF_T)
 116 INTEGRAL_TYPE(COff,tyConCOff,"COff",HTYPE_OFF_T)
 117 #endif
 118 #if defined(HTYPE_PID_T)
 119 INTEGRAL_TYPE(CPid,tyConCPid,"CPid",HTYPE_PID_T)
 120 #endif
 121
 122 #if defined(HTYPE_SSIZE_T)
 123 INTEGRAL_TYPE(CSsize,tyConCSsize,"CSsize",HTYPE_SSIZE_T)
 124 #endif
 125
 126 #if defined(HTYPE_GID_T)
 127 INTEGRAL_TYPE(CGid,tyConCGid,"CGid",HTYPE_GID_T)
 128 #endif
 129 #if defined(HTYPE_NLINK_T)
 130 INTEGRAL_TYPE(CNlink,tyConCNlink,"CNlink",HTYPE_NLINK_T)
 131 #endif
 132
 133 #if defined(HTYPE_UID_T)
 134 INTEGRAL_TYPE(CUid,tyConCUid,"CUid",HTYPE_UID_T)
 135 #endif
 136 #if defined(HTYPE_CC_T)
 137 ARITHMETIC_TYPE(CCc,tyConCCc,"CCc",HTYPE_CC_T)
 138 #endif
 139 #if defined(HTYPE_SPEED_T)
 140 ARITHMETIC_TYPE(CSpeed,tyConCSpeed,"CSpeed",HTYPE_SPEED_T)
 141 #endif
 142 #if defined(HTYPE_TCFLAG_T)
 143 INTEGRAL_TYPE(CTcflag,tyConCTcflag,"CTcflag",HTYPE_TCFLAG_T)
 144 #endif
 145 #if defined(HTYPE_RLIM_T)
 146 INTEGRAL_TYPE(CRLim,tyConCRlim,"CRLim",HTYPE_RLIM_T)
 147 #endif
 148
 149 -- ToDo: blksize_t, clockid_t, blkcnt_t, fsblkcnt_t, fsfilcnt_t, id_t, key_t
 150 -- suseconds_t, timer_t, useconds_t
 151
 152 -- Make an Fd type rather than using CInt everywhere
 153 INTEGRAL_TYPE(Fd,tyConFd,"Fd",CInt)
 154
 155 -- nicer names, and backwards compatibility with POSIX library:
 156 #if defined(HTYPE_NLINK_T)
 157 type LinkCount      = CNlink
 158 #endif
 159 #if defined(HTYPE_UID_T)
 160 type UserID         = CUid
 161 #endif
 162 #if defined(HTYPE_GID_T)
 163 type GroupID        = CGid
 164 #endif
 165
 166 type ByteCount      = CSize
 167 type ClockTick      = CClock
 168 type EpochTime      = CTime
 169 type DeviceID       = CDev
 170 type FileID         = CIno
 171 type FileMode       = CMode
 172 type ProcessID      = CPid
 173 type FileOffset     = COff
 174 type ProcessGroupID = CPid
 175 type Limit          = CLong
 176