unix-2.3.0.0: POSIX functionality Contents Index

System.Posix.Directory Portability non-portable (requires POSIX) Stability provisional Maintainer libraries@haskell.org

Contents Creating and removing directories Reading directories The working dirctory

Description

POSIX directory support

Synopsis

createDirectory :: FilePath -> FileMode -> IO () data DirStream openDirStream :: FilePath -> IO DirStream readDirStream :: DirStream -> IO FilePath rewindDirStream :: DirStream -> IO () closeDirStream :: DirStream -> IO () data DirStreamOffset tellDirStream :: DirStream -> IO DirStreamOffset seekDirStream :: DirStream -> DirStreamOffset -> IO () getWorkingDirectory :: IO FilePath changeWorkingDirectory :: FilePath -> IO () changeWorkingDirectoryFd :: Fd -> IO ()

Creating and removing directories

createDirectory :: FilePath -> FileMode -> IO ()

createDirectory dir mode calls mkdir to create a new directory, dir, with permissions based on mode.

Reading directories

data DirStream

openDirStream :: FilePath -> IO DirStream

openDirStream dir calls opendir to obtain a directory stream for dir.

readDirStream :: DirStream -> IO FilePath

readDirStream dp calls readdir to obtain the next directory entry (struct dirent) for the open directory stream dp, and returns the d_name member of that structure.

rewindDirStream :: DirStream -> IO ()

rewindDirStream dp calls rewinddir to reposition the directory stream dp at the beginning of the directory.

closeDirStream :: DirStream -> IO ()

closeDirStream dp calls closedir to close the directory stream dp.

data DirStreamOffset

tellDirStream :: DirStream -> IO DirStreamOffset

seekDirStream :: DirStream -> DirStreamOffset -> IO ()

The working dirctory

getWorkingDirectory :: IO FilePath

getWorkingDirectory calls getcwd to obtain the name of the current working directory.

changeWorkingDirectory :: FilePath -> IO ()

changeWorkingDirectory dir calls chdir to change the current working directory to dir.

changeWorkingDirectoryFd :: Fd -> IO ()

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