Package jnr.posix

Examples of jnr.posix.POSIX

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    @JRubyMethod(name = {"unlink", "delete"})
    public IRubyObject unlink(ThreadContext context) {
        if (openFile.getPath() == null) return context.nil;
       
        Ruby runtime = context.runtime;
        POSIX posix = runtime.getPosix();

        if (posix.isNative()) {
            try {
                RubyFile.unlink(context, this);
            } catch (RaiseException re) {
                RubyException excp = re.getException();
                if (!(excp instanceof RubySystemCallError)) throw re;
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    @JRubyMethod(optional=1, module = true)
    public static IRubyObject getpwuid(IRubyObject recv, IRubyObject[] args) {
        Ruby runtime = recv.getRuntime();
        POSIX posix = runtime.getPosix();
        try {
            int uid = args.length == 0 ? posix.getuid() : RubyNumeric.fix2int(args[0]);
            Passwd pwd = posix.getpwuid(uid);
            if(pwd == null) {
                if (Platform.IS_WINDOWS) {  // MRI behavior
                    return recv.getRuntime().getNil();
                }
                throw runtime.newArgumentError("can't find user for " + uid);
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    }

    @JRubyMethod(module = true)
    public static IRubyObject passwd(IRubyObject recv, Block block) {
        Ruby runtime = recv.getRuntime();
        POSIX posix = runtime.getPosix();
        try {
            // call getpwent to fail early if unsupported
            posix.getpwent();
            if(block.isGiven()) {
                ThreadContext context = runtime.getCurrentContext();
               
                if (!iteratingPasswd.compareAndSet(false, true)) {
                    throw runtime.newRuntimeError("parallel passwd iteration");
                }
               
                posix.setpwent();
                try {
                    Passwd pw;
                    while((pw = posix.getpwent()) != null) {
                        block.yield(context, setupPasswd(runtime, pw));
                    }
                } finally {
                    posix.endpwent();
                    iteratingPasswd.set(false);
                }
            }

            Passwd pw = posix.getpwent();
            if (pw != null) {
                return setupPasswd(runtime, pw);
            } else {
                return runtime.getNil();
            }
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    }

    @JRubyMethod(optional=1, module = true)
    public static IRubyObject getgrgid(IRubyObject recv, IRubyObject[] args) {
        Ruby runtime = recv.getRuntime();
        POSIX posix = runtime.getPosix();

        try {
            int gid = args.length == 0 ? posix.getgid() : RubyNumeric.fix2int(args[0]);
            Group gr = posix.getgrgid(gid);
            if(gr == null) {
                if (Platform.IS_WINDOWS) {  // MRI behavior
                    return runtime.getNil();
                }
                throw runtime.newArgumentError("can't find group for " + gid);
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    }

    @JRubyMethod(module = true)
    public static IRubyObject group(IRubyObject recv, Block block) {
        Ruby runtime = recv.getRuntime();
        POSIX posix = runtime.getPosix();

        try {
            // try to read grent to fail fast
            posix.getgrent();
        } catch (Exception e) {
            if (runtime.getDebug().isTrue()) {
                runtime.getWarnings().warn(ID.NOT_IMPLEMENTED, "Etc.group is not supported by JRuby on this platform");
            }
        }

        if (block.isGiven()) {
            Boolean blocking = (Boolean)recv.getInternalVariables().getInternalVariable("group_blocking");
            if (blocking != null && blocking) {
                throw runtime.newRuntimeError("parallel group iteration");
            }
            try {
                recv.getInternalVariables().setInternalVariable("group_blocking", true);

                ThreadContext context = runtime.getCurrentContext();

                posix.setgrent();
                Group gr;
                while((gr = posix.getgrent()) != null) {
                    block.yield(context, setupGroup(runtime, gr));
                }
            } finally {
                posix.endgrent();
                recv.getInternalVariables().setInternalVariable("group_blocking", false);
            }
        } else {
            Group gr = posix.getgrent();
            if (gr != null) {
                return setupGroup(runtime, gr);
            } else {
                return runtime.getNil();
            }
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    }

    @JRubyMethod(rest = true, meta = true)
    public static IRubyObject unlink(ThreadContext context, IRubyObject recv, IRubyObject[] args) {
        Ruby runtime = context.runtime;
        POSIX posix = runtime.getPosix();

        if (!posix.isNative()) return delete(context, recv, args);

        for (int i = 0; i < args.length; i++) {
            RubyString filename = get_path(context, args[i]);
            JRubyFile lToDelete = JRubyFile.create(runtime.getCurrentDirectory(), filename.getUnicodeValue());

            boolean isSymlink = RubyFileTest.symlink_p(recv, filename).isTrue();
            // Broken symlinks considered by exists() as non-existing,
            // so we need to check for symlinks explicitly.
            if (!lToDelete.exists() && !isSymlink) {
                throw runtime.newErrnoENOENTError(filename.getUnicodeValue());
            }

            if (lToDelete.isDirectory() && !isSymlink) {
                throw runtime.newErrnoEPERMError(filename.getUnicodeValue());
            }

            if (posix.unlink(lToDelete.getAbsolutePath()) < 0) {
                throw runtime.newErrnoFromInt(posix.errno());
            }
        }

        return runtime.newFixnum(args.length);
    }
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// ----- Ruby Class Methods ----------------------------------------------------

    private static List<ByteList> dirGlobs(ThreadContext context, String cwd, IRubyObject[] args, int flags) {
        List<ByteList> dirs = new ArrayList<ByteList>();

        POSIX posix = context.runtime.getPosix();
        for (int i = 0; i < args.length; i++) {
            dirs.addAll(Dir.push_glob(posix, cwd, globArgumentAsByteList(context, args[i]), flags));
        }

        return dirs;
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            IRubyObject keyAsStr = normalizeEnvString(Helpers.invoke(context, key, "to_str"));
            IRubyObject valueAsStr = value.isNil() ? getRuntime().getNil() :
                    normalizeEnvString(Helpers.invoke(context, value, "to_str"));

            if (updateRealENV) {
                POSIX posix = getRuntime().getPosix();
                String keyAsJava = keyAsStr.asJavaString();
                // libc (un)setenv is not reentrant, so we need to synchronize across the entire JVM (JRUBY-5933)
                if (valueAsStr == getRuntime().getNil()) {
                    synchronized (Object.class) { posix.unsetenv(keyAsJava); }
                } else {
                    synchronized (Object.class) { posix.setenv(keyAsJava, valueAsStr.asJavaString(), 1); }
                }
            }

            return super.op_aset(context, keyAsStr, valueAsStr);
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    @Test
    public void testGetPid() throws Exception
    {
        int pid_from_jmx = Integer.parseInt(ManagementFactory.getRuntimeMXBean().getName().split("@")[0]);

        POSIX posix = POSIXFactory.getPOSIX(new DefaultPOSIXHandler(), true);
        int pid = posix.getpid();
        assertThat(pid, equalTo(pid_from_jmx));
    }
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Related Classes of jnr.posix.POSIX

  • io.nodyn.process.ProcessWrap
  • jnr.posix.util.DefaultPOSIXHandlerTest
  • org.jruby.ext.etc.RubyEtc
  • org.jruby.ext.tempfile.Tempfile
  • org.jruby.RubyDir
  • org.jruby.RubyFile
  • org.jruby.RubyGlobal$StringOnlyRubyHash
  • org.jruby.RubyProcess
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