Module _Stdio

Inheritance graph

Description

Low-level I/O.

This is usually NOT the module you want. Try Stdio instead.

See also

Stdio

Constant NOTE_ATTRIB: constant int _Stdio.NOTE_ATTRIB
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for attribute changes on a file.
Note: Available on systems that use kqueue.

Constant NOTE_DELETE: constant int _Stdio.NOTE_DELETE
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for deletion of a file.
Note: Available on systems that use kqueue.

Constant NOTE_EXTEND: constant int _Stdio.NOTE_EXTEND
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for extension events on a file.
Note: Available on systems that use kqueue.

Constant NOTE_LINK: constant int _Stdio.NOTE_LINK
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for changes to a file's link count.
Note: Available on systems that use kqueue.

Constant NOTE_RENAME: constant int _Stdio.NOTE_RENAME
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for move or rename events on a file.
Note: Available on systems that use kqueue.

Constant NOTE_REVOKE: constant int _Stdio.NOTE_REVOKE
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for access revokation (unmount, etc).
Note: Available on systems that use kqueue.

Constant NOTE_WRITE: constant int _Stdio.NOTE_WRITE
Description: Used with Stdio.File()->set_fs_event_callback() to monitor for writes to a file.
Note: Available on systems that use kqueue.

Constant PROP_REVERSE

constant int _Stdio.PROP_REVERSE

Description

Request reversed operation.

Used as argument to Stdio.File()->pipe(), when PROP_BIDIRECTIONAL hasn't been specified, to request the direction of the resulting pipe to reversed.

See also

Stdio.File()->pipe()

Constant PROP_SEND_FD: constant int _Stdio.PROP_SEND_FD
Description: The Stdio.File object might support the Stdio.File()->send_fd() operation.
See also: Stdio.File()->pipe(), Stdio.File()->send_fd(), Stdio.File()->receive_fd()

Constant PROP_SHUTDOWN: constant int _Stdio.PROP_SHUTDOWN
Description: The file supports shutting down transmission in either direction.
See also: Stdio.File()->close(), Stdio.File()->pipe()

Constant PROP_TTY: constant int _Stdio.PROP_TTY
Description: The Stdio.File object supports tty operations.
Note: This constant is only present on platforms where pseudo tty (aka pty) operations are available, and may thus be used to detect whether such operations should be attempted.
See also: Stdio.File()->pipe()

Constant SO_KEEPALIVE: constant _Stdio.SO_KEEPALIVE
Description: Used in File.setsockopt() to control TCP/IP keep-alive packets.

Constant XATTR_CREATE: constant _Stdio.XATTR_CREATE
Description: Used by setxattr function and method to signify a pure create, which will fail if the attribute already exists.

Constant XATTR_REPLACE: constant _Stdio.XATTR_REPLACE
Description: Used by setxattr function and method to signify a replace, which will fail the the attribute does not already exists.

Constant __HAVE_CONCURRENT_CLOSE__: constant _Stdio.__HAVE_CONCURRENT_CLOSE__
Description: Support concurrent closing of files while other blocking operations (eg Stdio.File->read() or Stdio.File()->write()) are active in other threads. This is typically used to implement timeout recovery.
Note: Support for concurrent closing of files is present in Pike 8.0.1950, Pike 9.0.11 and later on most non-NT platforms.
See also: Stdio.File()->close()

Constant __HAVE_SEND_FD__: constant _Stdio.__HAVE_SEND_FD__
Description: Support for sending of file descriptors over Stdio.File()->pipe() objects with PROP_SEND_FD capability is supported.
See also: Stdio.File()->send_fd(), Stdio.File()->receive_fd(), Stdio.File()->read(), Stdio.File()->write(), Stdio.File()->pipe()

Constant __OOB__

constant _Stdio.__OOB__

Description

Implementation level of nonblocking I/O OOB support.

`0`	Nonblocking OOB support is not supported.
`1`	Nonblocking OOB works a little.
`2`	Nonblocking OOB almost works.
`3`	Nonblocking OOB works as intended.
`-1`	Unknown level of nonblocking OOB support.

This constant only exists when OOB operations are available, i.e. when __HAVE_OOB__ is 1.