https://github.com/objectionary/eo-sys

EO Objects Interacting with Operating System Level
https://github.com/objectionary/eo-sys

eolang java syscall

Last synced: 8 months ago
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EO Objects Interacting with Operating System Level

• Host: GitHub
• URL: https://github.com/objectionary/eo-sys
• Owner: objectionary
• License: mit
• Archived: true
• Created: 2022-07-22T14:01:08.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2024-08-14T09:04:13.000Z (over 1 year ago)
• Last Synced: 2025-03-16T00:27:30.854Z (10 months ago)
• Topics: eolang, java, syscall
• Language: Java
• Homepage:
• Size: 177 KB
• Stars: 5
• Watchers: 2
• Forks: 3
• Open Issues: 14
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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**This repository is deprecated! We've moved all EO objects from this repository

to [objectionary/eo](https://github.com/objectionary/eo).**

[EO](https://www.eolang.org) objects for interactions with operating system.

This is how you make a [`write`](https://man7.org/linux/man-pages/man2/write.2.html) 

[syscall](https://man7.org/linux/man-pages/man2/syscall.2.html) 

to print "Hello, world" to the console (here `1` is the handle of 

[stdout](https://en.wikipedia.org/wiki/Standard_streams)):

```

[] > app

  "Hello, world!" > msg

  QQ.sys.call > @

    "write"

    1

    msg

    msg.length

```

This is how you get the current process ID using

[`getpid`](https://man7.org/linux/man-pages/man2/getpid.2.html):

```

[] > app

  QQ.io.stdout > @

    QQ.txt.sprintf

      "Current PID is %d"

      QQ.sys.call

        "getpid"

```

This is how you detect what OS you are with:

```

[] > app

  QQ.io.stdout > @

    QQ.txt.sprintf

      "This is %s"

      switch.

        * 

          QQ.sys.uname.is-windows

          "Windows"

        * 

          QQ.sys.uname.is-unix

          "Unix"

        * 

          QQ.sys.uname.is-macos

          "MacOS"

        * 

          TRUE

          "something else"

```

## How to Contribute

Fork repository, make changes, send us a pull request.

We will review your changes and apply them to the `master` branch shortly,

provided they don't violate our quality standards. To avoid frustration,

before sending us your pull request please run full Maven build:

```bash

$ mvn clean install -Pqulice

```

You will need Maven 3.3+ and Java 8+.