https://github.com/florianl/sequitur

sequitur is something like a multiplexing software.
https://github.com/florianl/sequitur

Last synced: 2 months ago
JSON representation

sequitur is something like a multiplexing software.

• Host: GitHub
• URL: https://github.com/florianl/sequitur
• Owner: florianl
• License: other
• Created: 2014-11-28T19:22:27.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2017-05-21T08:30:32.000Z (about 8 years ago)
• Last Synced: 2025-02-08T21:12:52.917Z (4 months ago)
• Language: C
• Size: 13.7 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
sequitur

========

This is `sequitur`. `sequitur` is something like a multiplexing software.

It reads from `stdin` if option `-s` is missing. `module(s)` are loaded

dynamically and each is started in a separate thread. Each thread gets

the same data from `sequitur`.

`sequitur` benefits from the advantages of [tee()](http://man7.org/linux/man-pages/man2/tee.2.html). So there is no overhead

by multiplexing the data from `sequitur` to each `module`. Each `module` can

process the received data without affecting other `module(s)`.

If you run `sequitur` in quiet mode it will write the copied data each

`module` received to `/dev/null` instead of `stdout`.

Usage

-----

    $ ./sequitur

    missing module(s) to load

    $ ./sequitur -h

    ./sequitur [OPTIONS] module [module [module]]

       starts dynamically the given module(s)

       -V	print version and exit

       -h	prints this help and exit

       -s	source to use

         	if no file is given, the input is read from stdin

       -q	run in quiet mode

    $ echo "123" | ./sequitur ./exemplum.so ./exemplum2.so

    Hello World from 1

    Hello World from 2

    123

    [2] \x31

    [2] \x32

    [2] \x33

    [2] \x0a

    [1] 1

    [1] 2

    [1] 3

    [1]

Set `LD_LIBRARY_PATH` to a directory where the modules are. So you can

simply specify `exemplum.so` instead of `./exemplum.so` to load the modules.

License

-------

Copyright 2014 Florian Lehner 

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are

met:

    (1) Redistributions of source code must retain the above copyright

    notice, this list of conditions and the following disclaimer.

    (2) Redistributions in binary form must reproduce the above copyright

    notice, this list of conditions and the following disclaimer in

    the documentation and/or other materials provided with the

    distribution.

    (3)The name of the author may not be used to

    endorse or promote products derived from this software without

    specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR

IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGE.

Recommended Articles

--------------------

 * [sys_tee](https://lwn.net/Articles/179434/)

 * [Linux: Explaining splice() and tee()](https://web.archive.org/web/20130521163124/http://kerneltrap.org/node/6505)