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GAP 4 Package IO

Bindings for low level C library I/O routines

Version 4.2

January 2012

Max Neunhöffer
Email: neunhoef@mcs.st-and.ac.uk
Homepage: http://www-groups.mcs.st-and.ac.uk/~neunhoef
Address:
School of Mathematics and Statistics Mathematical Institute University of St Andrews North Haugh St Andrews, Fife KY16 9SS Scotland, UK

Copyright

© 2005-2012 by Max Neunhöffer

This package may be distributed under the terms and conditions of the GNU Public License Version 3 or later.

Contents

2 Installation of the IO-package

2.1 Static linking

2.2 Recompiling the documentation

3 Functions directly available from the C library

3.1 Differences in arguments - an overview

3.2 The low-level functions in detail

  3.2-1 IO_accept
  3.2-2 IO_bind
  3.2-3 IO_chdir
  3.2-4 IO_chmod
  3.2-5 IO_chown
  3.2-6 IO_close
  3.2-7 IO_closedir
  3.2-8 IO_connect
  3.2-9 IO_creat
  3.2-10 IO_dup
  3.2-11 IO_dup2
  3.2-12 IO_execv
  3.2-13 IO_execve
  3.2-14 IO_execvp
  3.2-15 IO_exit
  3.2-16 IO_fchmod
  3.2-17 IO_fchown
  3.2-18 IO_fcntl
  3.2-19 IO_fork
  3.2-20 IO_fstat
  3.2-21 IO_gethostbyname
  3.2-22 IO_gethostname
  3.2-23 IO_getpid
  3.2-24 IO_getppid
  3.2-25 IO_getsockname
  3.2-26 IO_getsockopt
  3.2-27 IO_gettimeofday
  3.2-28 IO_gmtime
  3.2-29 IO_kill
  3.2-30 IO_lchown
  3.2-31 IO_link
  3.2-32 IO_listen
  3.2-33 IO_localtime
  3.2-34 IO_lseek
  3.2-35 IO_lstat
  3.2-36 IO_mkdir
  3.2-37 IO_mkfifo
  3.2-38 IO_mknod
  3.2-39 IO_open
  3.2-40 IO_opendir
  3.2-41 IO_pipe
  3.2-42 IO_read
  3.2-43 IO_readdir
  3.2-44 IO_readlink
  3.2-45 IO_recv
  3.2-46 IO_recvfrom
  3.2-47 IO_rename
  3.2-48 IO_rewinddir
  3.2-49 IO_rmdir
  3.2-50 IO_seekdir
  3.2-51 IO_select
  3.2-52 IO_send
  3.2-53 IO_sendto
  3.2-54 IO_setsockopt
  3.2-55 IO_socket
  3.2-56 IO_stat
  3.2-57 IO_symlink
  3.2-58 IO_telldir
  3.2-59 IO_unlink
  3.2-60 IO_WaitPid
  3.2-61 IO_write

3.3 Further C level functions

  3.3-1 IO_make_sockaddr_in
  3.3-2 IO_environ
  3.3-3 IO_InstallSIGCHLDHandler
  3.3-4 IO_RestoreSIGCHLDHandler

4 High level functions for buffered I/O

4.1 Types and the creation of File objects

  4.1-1 IsFile
  4.1-2 IO_WrapFD
  4.1-3 IO_File

4.2 Reading and writing

  4.2-1 IO_ReadUntilEOF
  4.2-2 IO_ReadBlock
  4.2-3 IO_ReadLine
  4.2-4 IO_ReadLines
  4.2-5 IO_HasData
  4.2-6 IO_Read
  4.2-7 IO_Write
  4.2-8 IO_WriteLine
  4.2-9 IO_WriteLines
  4.2-10 IO_Flush
  4.2-11 IO_WriteFlush
  4.2-12 IO_ReadyForWrite
  4.2-13 IO_WriteNonBlocking
  4.2-14 IO_ReadyForFlush
  4.2-15 IO_FlushNonBlocking
  4.2-16 IO_Close

4.3 Other functions

  4.3-1 IO_GetFD
  4.3-2 IO_GetWBuf
  4.3-3 IO_Select
  4.3-4 IO_ListDir
  4.3-5 ChangeCurrentDirectory
  4.3-6 IO_MakeIPAddressPort
  4.3-7 IO_Environment
  4.3-8 IO_MakeEnvList

4.4 Inter process communication

  4.4-1 IO_FindExecutable
  4.4-2 IO_CloseAllFDs
  4.4-3 IO_Popen
  4.4-4 IO_Popen2
  4.4-5 IO_Popen3
  4.4-6 IO_StartPipeline
  4.4-7 IO_StringFilterFile
  4.4-8 IO_FileFilterString
  4.4-9 IO_FilteredFile
  4.4-10 IO_SendStringBackground
  4.4-11 IO_PipeThrough
  4.4-12 IO_PipeThroughWithError

5 Object serialisation (Pickling)

5.1 Result objects

  5.1-1 IO_Error
  5.1-2 IO_Nothing
  5.1-3 IO_OK

5.2 Pickling and unpickling

  5.2-1 IO_Pickle
  5.2-2 IO_Unpickle
  5.2-3 IO_ClearPickleCache

5.3 Extending the pickling framework

6 Really random sources

6.1 The functions

6.1-1 RandomSource

7 A client side implementation of the HTTP protocol

7.1 Functions for client side HTTP

  7.1-1 OpenHTTPConnection
  7.1-2 HTTPRequest
  7.1-3 HTTPTimeoutForSelect
  7.1-4 CloseHTTPConnection
  7.1-5 SingleHTTPRequest
  7.1-6 CheckForUpdates
  7.1-7 ReadWeb

9 I/O multiplexing

9.1 Introduction

9.2 The operations for IOHub objects

  9.2-1 IOHub
  9.2-2 NewConnection
  9.2-3 CloseConnection
  9.2-4 AttachServingSocket
  9.2-5 ShutdownServingSocket
  9.2-6 Shutdown
  9.2-7 AcceptNewConnection
  9.2-8 SubmitOutput
  9.2-9 GetInput
  9.2-10 NewTCPConnection
  9.2-11 OutputQueue
  9.2-12 InputQueue
  9.2-13 DoIO

10 Examples of usage

10.1 Writing and reading a file

10.2 Using filtering programs to read and write files

10.3 Using filters when reading or writing files sequentially

10.4 Accessing a web page

10.5 (Un-)Pickling

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