Extracted from Pike v7.8 release 866 at 2016-11-06.

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Stdio

Module Stdio

Constant PROP_SEND_FD: constant 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_REVERSE

constant 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_BIDIRECTIONAL: constant Stdio.PROP_BIDIRECTIONAL
Description: The file is bi-directional.
See also: Stdio.File()->pipe()

Constant PROP_BUFFERED: constant Stdio.PROP_BUFFERED
Description: The file is buffered (usually 4KB).
See also: Stdio.File()->pipe()

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

Constant PROP_NONBLOCK: constant Stdio.PROP_NONBLOCK
Description: The file supports nonblocking I/O.
See also: Stdio.File()->pipe()

Constant PROP_IPC: constant Stdio.PROP_IPC
Description: The file may be used for inter process communication.
See also: Stdio.File()->pipe()

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.

Constant __HAVE_OOB__: constant Stdio.__HAVE_OOB__
Description: Exists and has the value 1 if OOB operations are available.
Note: In Pike 7.5 and later OOB operations are always present.

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 DN_ACCESS: constant Stdio.DN_ACCESS
Description: Used in File.notify() to get a callback when files within a directory are accessed.

Constant DN_MODIFY: constant Stdio.DN_MODIFY
Description: Used in File.notify() to get a callback when files within a directory are modified.

Constant DN_CREATE: constant Stdio.DN_CREATE
Description: Used in File.notify() to get a callback when new files are created within a directory.

Constant DN_DELETE: constant Stdio.DN_DELETE
Description: Used in File.notify() to get a callback when files are deleted within a directory.

Constant DN_RENAME: constant Stdio.DN_RENAME
Description: Used in File.notify() to get a callback when files within a directory are renamed.

Constant DN_ATTRIB: constant Stdio.DN_ATTRIB
Description: Used in File.notify() to get a callback when attributes of files within a directory are changed.

Constant DN_MULTISHOT: constant Stdio.DN_MULTISHOT
Description: Used in File.notify() . If DN_MULTISHOT is used, signals will be sent for all notifications the program has registred for. Otherwise only the first event the program is listening for will be received and then the program must reregister for the events to receive futher events.

Inherit files: inherit files : files

Constant DATA_CHUNK_SIZE: constant Stdio.DATA_CHUNK_SIZE
Description: Size used in various places to divide incoming or outgoing data into chunks.

Constant TCSANOW

constant Stdio.TCSANOW

Description

Argument to Stdio.File()->tcsetattr() .

Change immediately.

Constant TCSADRAIN

constant Stdio.TCSADRAIN

Description

Argument to Stdio.File()->tcsetattr() .

Change after all output has been written.

Constant TCSAFLUSH

constant Stdio.TCSAFLUSH

Description

Argument to Stdio.File()->tcsetattr() .

Change after all output has been written, and empty the input buffers.

Variable stderr: FILE Stdio.stderr
Description: An instance of FILE("stderr"), the standard error stream. Use this when you want to output error messages.
See also: werror()

Variable stdout: FILE Stdio.stdout
Description: An instance of FILE("stdout"), the standatd output stream. Use this when you want to write anything to the standard output.
See also: write()

Variable stdin

FILE Stdio.stdin

Description

An instance of FILE("stdin"), the standard input stream. Use this when you want to read anything from the standard input. This example will read lines from standard input for as long as there are more lines to read. Each line will then be written to stdout together with the line number. We could use Stdio.stdout.write() instead of just write() , since they are the same function.

Example

int main()
  {
    int line;
    while(string s=Stdio.stdin.gets())
 	 write("%5d: %s\n", line++, s);
  }