Copyright | Copyright (C) 2004-2011 John Goerzen |
---|---|
License | BSD3 |
Maintainer | John Goerzen <jgoerzen@complete.org> |
Stability | provisional |
Portability | portable |
Safe Haskell | None |
Language | Haskell98 |
System.IO.HVFS.InstanceHelpers
Description
Utilities for creating instances of the items defined in System.IO.HVFS.
Synopsis
- data SimpleStat = SimpleStat {
- isFile :: Bool
- fileSize :: FileOffset
- data MemoryVFS
- newMemoryVFS :: [MemoryNode] -> IO MemoryVFS
- newMemoryVFSRef :: IORef [MemoryNode] -> IO MemoryVFS
- type MemoryNode = (String, MemoryEntry)
- data MemoryEntry
- nice_slice :: String -> [String]
- getFullPath :: HVFS a => a -> String -> IO String
- getFullSlice :: HVFS a => a -> String -> IO [String]
HVFSStat objects
data SimpleStat #
A simple System.IO.HVFS.HVFSStat class that assumes that everything is either a file or a directory.
Constructors
SimpleStat | |
Fields
|
Instances
Eq SimpleStat # | |
Defined in System.IO.HVFS.InstanceHelpers | |
Show SimpleStat # | |
Defined in System.IO.HVFS.InstanceHelpers Methods showsPrec :: Int -> SimpleStat -> ShowS # show :: SimpleStat -> String # showList :: [SimpleStat] -> ShowS # | |
HVFSStat SimpleStat # | |
Defined in System.IO.HVFS.InstanceHelpers Methods vDeviceID :: SimpleStat -> DeviceID # vFileID :: SimpleStat -> FileID # vFileMode :: SimpleStat -> FileMode # vLinkCount :: SimpleStat -> LinkCount # vFileOwner :: SimpleStat -> UserID # vFileGroup :: SimpleStat -> GroupID # vSpecialDeviceID :: SimpleStat -> DeviceID # vFileSize :: SimpleStat -> FileOffset # vAccessTime :: SimpleStat -> EpochTime # vModificationTime :: SimpleStat -> EpochTime # vStatusChangeTime :: SimpleStat -> EpochTime # vIsBlockDevice :: SimpleStat -> Bool # vIsCharacterDevice :: SimpleStat -> Bool # vIsNamedPipe :: SimpleStat -> Bool # vIsRegularFile :: SimpleStat -> Bool # vIsDirectory :: SimpleStat -> Bool # vIsSymbolicLink :: SimpleStat -> Bool # vIsSocket :: SimpleStat -> Bool # |
HVFS objects & types
MemoryVFS
An in-memory read/write filesystem. Think of it as a dynamically resizable ramdisk written in Haskell.
Instances
newMemoryVFS :: [MemoryNode] -> IO MemoryVFS #
Create a new MemoryVFS
object from an existing tree.
An empty filesystem may be created by using []
for the parameter.
newMemoryVFSRef :: IORef [MemoryNode] -> IO MemoryVFS #
Create a new MemoryVFS
object using an IORef to an
existing tree.
type MemoryNode = (String, MemoryEntry) #
The basic node of a MemoryVFS
. The String corresponds to the filename,
and the entry to the contents.
data MemoryEntry #
The content of a file or directory in a MemoryVFS
.
Constructors
MemoryDirectory [MemoryNode] | |
MemoryFile String |
Instances
Eq MemoryEntry # | |
Defined in System.IO.HVFS.InstanceHelpers | |
Show MemoryEntry # | |
Defined in System.IO.HVFS.InstanceHelpers Methods showsPrec :: Int -> MemoryEntry -> ShowS # show :: MemoryEntry -> String # showList :: [MemoryEntry] -> ShowS # |
Utilities
nice_slice :: String -> [String] #
Similar to NameManip
but the first element
won't be /
.
nice_slice "/" -> [] nice_slice "/foo/bar" -> ["foo", "bar"]
getFullSlice :: HVFS a => a -> String -> IO [String] #
Gets the full path via getFullPath
, then splits it via nice_slice
.