objectionary/eo-sys

EO Objects Interacting with Operating System Level

EO objects for interactions with operating system.

This is how you make a write syscall to print "Hello, world" to the console (here 1 is the handle of stdout):

[] > app
  "Hello, world!" > msg
  QQ.sys.call > @
    "write"
    1
    msg
    msg.length

This is how you get the current process ID using getpid:

[] > 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:

$ mvn clean install -Pqulice

You will need Maven 3.3+ and Java 8+.

eo-sys's Issues

windows build is broken

In GitHub Actions

jar-with-dependencies

pom.xml:254-260: Turn on duplicate finder. For some...

The puzzle 71-a345f49f from #71 has to be resolved:

eo-sys/pom.xml

Lines 254 to 260 in 97b8c01

	@todo #71:30min Turn on duplicate finder. For some reason
	qulice fails on github actions with "Found duplicate (but
	equal) resources in [net.java.dev.jna:jna:5.13.0,
	org.eolang:eo-sys:1.0-SNAPSHOT] :
	com/sun/jna/darwin-x86-64/libjnidispatch.jnilib". See:
	https://github.com/objectionary/eo-sys/actions/runs/5532201228/jobs/10093939487.
	Need to figure it out and remove "exclude" line below

The puzzle was created by @maxonfjvipon on 12-Jul-23.

Estimate: 30 minutes, role: DEV.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.

one more release

We need to made a new release with this changes: #54
This should help with this issue: objectionary/eo#1898

Usage in another repository

@mximp I started this test in another repository and it failed:

+alias org.eolang.hamcrest.assert-that
+architect [email protected]
+home https://github.com/objectionary/eo
+junit
+package org.eolang.threads
+version 0.0.0

[] > get-time-of-day
  gt. > @
    QQ.sys.call
      "gettimeofday"
    0

and get

[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.012 s <<< FAILURE! - in EOorg.EOeolang.EOthreads.EOget_time_of_day_testTest
[ERROR] EOorg.EOeolang.EOthreads.EOget_time_of_day_testTest.testWorks  Time elapsed: 0.006 s  <<< ERROR!
org.eolang.ExFailure: Can't #copy() package object 'org.eolang.sys.call'
        at org.eolang.PhPackage.copy(PhPackage.java:108)

Is it possible to use it now in foreign repository?

sys.call

Get rid of weak typed atoms in the repository

In order to prohibit using weak typed atoms (/?, see objectionary/eo#1305) outside of org.eolang package we need to get rid of the weak typed atoms here

Dependency Dashboard

This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

Open

These updates have all been created already. Click a checkbox below to force a retry/rebase of any.

• Update slf4j monorepo to v2.0.13 (org.slf4j:slf4j-api, org.slf4j:jul-to-slf4j)
• Update dependency ch.qos.logback:logback-classic to v1.5.6
• Update dependency com.jcabi:parent to v0.68.0
• Update dependency com.qulice:qulice-maven-plugin to v0.23.0
• Update dependency org.apache.maven.plugins:maven-compiler-plugin to v3.13.0
• Update dependency org.eolang:eo-maven-plugin to v0.38.4
• Update dependency org.eolang:eo-runtime to v0.38.4
• Update junit5 monorepo to v5.10.3 (org.junit.jupiter:junit-jupiter-engine, org.junit.jupiter:junit-jupiter-api)
• Update actions/cache action to v4
• Click on this checkbox to rebase all open PRs at once

Detected dependencies

github-actions

.github/workflows/codecov.yml

• actions/checkout v4
• actions/setup-java v4
• actions/cache v3
• codecov/codecov-action v4
• ubuntu 22.04

.github/workflows/mvn.yml

• actions/checkout v4
• actions/setup-java v4
• actions/cache v3

.github/workflows/pdd.yml

• actions/checkout v4
• ubuntu 22.04

.github/workflows/xcop.yml

• actions/checkout v4
• ubuntu 22.04

maven

pom.xml

• com.jcabi:parent 0.66.0
• org.eolang:eo-runtime 0.32.0
• net.java.dev.jna:jna 5.14.0
• net.java.dev.jna:jna-platform 5.14.0
• org.junit.jupiter:junit-jupiter-api 5.9.3
• org.junit.jupiter:junit-jupiter-engine 5.9.3
• org.slf4j:jul-to-slf4j 2.0.9
• org.slf4j:slf4j-api 2.0.9
• ch.qos.logback:logback-classic 1.4.14
• net.java.dev.jna:jna 5.14.0
• net.java.dev.jna:jna-platform 5.14.0
• org.apache.maven.plugins:maven-compiler-plugin 3.8.1
• org.eolang:eo-maven-plugin 0.32.0
• com.qulice:qulice-maven-plugin 0.22.0

---

• Check this box to trigger a request for Renovate to run again on this repository

latest release tag is wrong

When I'm trying to get the version of the latest release of this project by https://api.github.com/repos/objectionary/eo-sys/releases/latest I've faced the wrong version. Right now latest tag shows us 0.0.5, but latest release version is 0.0.10

Release syntax changes in `eo-sys`

flatten the JAR to get rid of transitive deps

Any syscall should work with this object

At the moment, only a few syscalls are supported. An arbitrary syscall will lead to an error, because it may either return a pointer to a structure in memory, which we don't support, or may expect such a structure as an argument. Let's make this library more flexible. For example, this syscall should work out of the box:

int getfsstat(user_addr_t buf, int bufsize, int flags);

Like this:

ram 100 > buf
QQ.sys.call
  "getfsstat"
  buf
  100
  0

uname.eo:31-33: Current implementation of uname method...

The puzzle 10-68261936 from #10 has to be resolved:

eo-sys/src/main/eo/org/eolang/sys/uname.eo

Lines 31 to 33 in dfc684b

	# @todo #10:30min Current implementation of uname method uses java.
	# This object can be implementet by EO. But for now it is impossible
	# due to failed build on Windows.

The puzzle was created by @Graur on 15-Mar-23.

Estimate: 30 minutes, role: DEV.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.

Implement `gettimeofday` system call for Windows platform

#5 implements this for Unix-like platform.
Make implementation for Windows.

gettimeofday

Let's make a test that calls gettimeofday

Replace test meta from `+junit` to `+tests`

As per changes in objectionary/eo#1869 for all EO tests replace +junit with +tests.

get process ID on Windows