hmatrix-mmap (empty) → 0.0.1

raw patch · 5 files changed

+82/−0 lines, 5 filesdep +basedep +hmatrixdep +mmapsetup-changed

Dependencies added: base, hmatrix, mmap

Files

• Data/Packed/Vector/MMap.hs +22/−0
• LICENSE +30/−0
• README +5/−0
• Setup.hs +2/−0
• hmatrix-mmap.cabal +23/−0

@@ -0,0 +1,22 @@+{-# LANGUAGE ScopedTypeVariables #-}+module Data.Packed.Vector.MMap (+  unsafeMMapVector+) where++import System.IO.MMap+import Foreign.Storable++import qualified Data.Packed.Development as I+import qualified Data.Packed.Vector as I+import Data.Int++-- | Map a file into memory ('ReadOnly' mode) as an immutable vector.+unsafeMMapVector :: forall a. Storable a => FilePath -- ^ Path of the file to map+                                         -> Maybe (Int64, Int) -- ^ 'Nothing' to map entire file into memory, otherwise 'Just (fileOffset, elementCount)'+                                         -> IO (I.Vector a)+unsafeMMapVector path range = +  do (foreignPtr, offset, size) <- mmapFileForeignPtr path ReadOnly $ +        case range of+          Nothing -> Nothing+          Just (start, length) -> Just (start, length * sizeOf (undefined :: a))+     return $ I.unsafeFromForeignPtr foreignPtr offset (size `div` sizeOf (undefined :: a))

@@ -0,0 +1,30 @@+Copyright (c) 2010, Daniel Peebles+Copyright (c) 2011, Alan Falloon+All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++- Redistributions of source code must retain the above copyright notice,+this list of conditions and the following disclaimer.+ +- Redistributions in binary form must reproduce the above copyright notice,+this list of conditions and the following disclaimer in the documentation+and/or other materials provided with the distribution.+ +- Neither name of the University nor the names of its contributors may be+used to endorse or promote products derived from this software without+specific prior written permission. ++THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY COURT OF THE UNIVERSITY OF+GLASGOW AND THE CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE+UNIVERSITY COURT OF THE UNIVERSITY OF GLASGOW OR THE CONTRIBUTORS BE LIABLE+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH+DAMAGE.

@@ -0,0 +1,5 @@+hmatrix-mmap: Load hmatrix Data.Packed.Vector.Vector values using mmap++This package is derived heavily from vector-mmap[1] by Daniel Peebles.++[1] http://hackage.haskell.org/package/vector-mmap

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,23 @@+Name:           hmatrix-mmap+Version:        0.0.1+License:        BSD3+License-File:   LICENSE+Author:         Daniel Peebles <pumpkingod@gmail.com>, Alan Falloon <alan.falloon@gmail.com>+Maintainer:     Alan Falloon <alan.falloon@gmail.com>+Copyright:      (c) Daniel Peebles 2010, (c) Alan Falloon 2011+Homepage:       http://github.com/alanfalloon/hmatrix-mmap+Category:       Data, Data Structures+Synopsis:       Memory map Vector from disk into memory efficiently+Description:+        Memory map Data.Packed.Vector.Vector from disk into memory efficiently.++Cabal-Version:  >= 1.2+Build-Type:     Simple++Extra-source-files: README++Library+  Exposed-Modules:+        Data.Packed.Vector.MMap++  Build-Depends: base >= 2 && < 5, mmap >= 0.5.4, hmatrix >= 0.10