jruby/src/org/jruby/RubyProcess.java at parallel_boot · MSNexploder/jruby · GitHub

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**** BEGIN LICENSE BLOCK *****

* Version: EPL 1.0/GPL 2.0/LGPL 2.1

* The contents of this file are subject to the Eclipse Public

* License Version 1.0 (the "License"); you may not use this file

* except in compliance with the License. You may obtain a copy of

* the License at http://www.eclipse.org/legal/epl-v10.html

* Software distributed under the License is distributed on an "AS

* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or

* implied. See the License for the specific language governing

* rights and limitations under the License.

* Alternatively, the contents of this file may be used under the terms of

* either of the GNU General Public License Version 2 or later (the "GPL"),

* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the EPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the EPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

package org.jruby;

import jnr.ffi.*;

import jnr.constants.platform.Signal;

import jnr.constants.platform.Sysconf;

import jnr.posix.Times;

import org.jruby.anno.JRubyClass;

import org.jruby.anno.JRubyMethod;

import org.jruby.anno.JRubyModule;

import jnr.posix.POSIX;

import org.jruby.platform.Platform;

import org.jruby.runtime.Arity;

import org.jruby.runtime.Block;

import org.jruby.runtime.BlockCallback;

import org.jruby.runtime.CallBlock;

import org.jruby.runtime.ObjectAllocator;

import org.jruby.runtime.ThreadContext;

import static org.jruby.runtime.Visibility.*;

import org.jruby.runtime.builtin.IRubyObject;

import org.jruby.util.ShellLauncher;

import static org.jruby.CompatVersion.*;

import static org.jruby.runtime.Helpers.invokedynamic;

import static org.jruby.runtime.invokedynamic.MethodNames.OP_EQUAL;

/**

@JRubyModule(name="Process")

public class RubyProcess {

public static RubyModule createProcessModule(Ruby runtime) {

RubyModule process = runtime.defineModule("Process");

runtime.setProcess(process);

// TODO: NOT_ALLOCATABLE_ALLOCATOR is probably ok here. Confirm. JRUBY-415

RubyClass process_status = process.defineClassUnder("Status", runtime.getObject(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);

runtime.setProcStatus(process_status);

RubyModule process_uid = process.defineModuleUnder("UID");

runtime.setProcUID(process_uid);

RubyModule process_gid = process.defineModuleUnder("GID");

runtime.setProcGID(process_gid);

RubyModule process_sys = process.defineModuleUnder("Sys");

runtime.setProcSys(process_sys);

process.defineAnnotatedMethods(RubyProcess.class);

process_status.defineAnnotatedMethods(RubyStatus.class);

process_uid.defineAnnotatedMethods(UserID.class);

process_gid.defineAnnotatedMethods(GroupID.class);

process_sys.defineAnnotatedMethods(Sys.class);

runtime.loadConstantSet(process, jnr.constants.platform.PRIO.class);

runtime.loadConstantSet(process, jnr.constants.platform.RLIM.class);

runtime.loadConstantSet(process, jnr.constants.platform.RLIMIT.class);

process.defineConstant("WNOHANG", runtime.newFixnum(1));

process.defineConstant("WUNTRACED", runtime.newFixnum(2));

return process;

}

@JRubyClass(name="Process::Status")

public static class RubyStatus extends RubyObject {

private final long status;

private final long pid;

private static final long EXIT_SUCCESS = 0L;

public RubyStatus(Ruby runtime, RubyClass metaClass, long status, long pid) {

super(runtime, metaClass);

this.status = status;

this.pid = pid;

}

public static RubyStatus newProcessStatus(Ruby runtime, long status, long pid) {

return new RubyStatus(runtime, runtime.getProcStatus(), status, pid);

}

// Bunch of methods still not implemented

@JRubyMethod(name = "to_int")

public IRubyObject not_implemented() {

String error = "Process::Status#to_int not implemented";

throw getRuntime().newNotImplementedError(error);

}

@JRubyMethod(name = "stopped?")

public IRubyObject not_implemented0() {

String error = "Process::Status#stopped? not implemented";

throw getRuntime().newNotImplementedError(error);

}

@JRubyMethod(name = {"&"})

public IRubyObject not_implemented1(IRubyObject arg) {

String error = "Process::Status#& not implemented";

throw getRuntime().newNotImplementedError(error);

}

@JRubyMethod

public IRubyObject exitstatus() {

return getRuntime().newFixnum(status);

}

@JRubyMethod(name = {"exited?"})

public IRubyObject exited() {

return RubyBoolean.newBoolean(getRuntime(), (status == 0));

}

@JRubyMethod(name = {"signaled?"})

public IRubyObject signaled() {

return RubyBoolean.newBoolean(getRuntime(), (status > 0));

}

@JRubyMethod(name = {"termsig"})

public IRubyObject termsig() {

return RubyFixnum.newFixnum(getRuntime(), status & 0x7f);

}

@JRubyMethod(name = {"stopsig"})

public IRubyObject stopsig() {

return RubyFixnum.newFixnum(getRuntime(), status);

}

@Deprecated

public IRubyObject op_rshift(IRubyObject other) {

return op_rshift(getRuntime(), other);

}

@JRubyMethod(name = ">>")

public IRubyObject op_rshift(ThreadContext context, IRubyObject other) {

return op_rshift(context.runtime, other);

}

public IRubyObject op_rshift(Ruby runtime, IRubyObject other) {

long shiftValue = other.convertToInteger().getLongValue();

return runtime.newFixnum(status >> shiftValue);

}

@Override

@JRubyMethod(name = "==")

public IRubyObject op_equal(ThreadContext context, IRubyObject other) {

return invokedynamic(context, other, OP_EQUAL, this.to_i(context.runtime));

}

@Deprecated

public IRubyObject to_i() {

return to_i(getRuntime());

}

@JRubyMethod

public IRubyObject to_i(ThreadContext context) {

return to_i(context.runtime);

}

public IRubyObject to_i(Ruby runtime) {

return runtime.newFixnum(shiftedValue());

}

@Override

public IRubyObject to_s() {

return to_s(getRuntime());

}

@JRubyMethod

public IRubyObject to_s(ThreadContext context) {

return to_s(context.runtime);

}

public IRubyObject to_s(Ruby runtime) {

return runtime.newString(String.valueOf(shiftedValue()));

}

@Override

public IRubyObject inspect() {

return inspect(getRuntime());

}

@JRubyMethod

public IRubyObject inspect(ThreadContext context) {

return inspect(context.runtime);

}

public IRubyObject inspect(Ruby runtime) {

return runtime.newString("#<Process::Status: pid=" + pid + ",exited(" + String.valueOf(status) + ")>");

}

@JRubyMethod(name = "success?")

public IRubyObject success_p(ThreadContext context) {

return context.runtime.newBoolean(status == EXIT_SUCCESS);

}

@JRubyMethod(name = "coredump?")

public IRubyObject coredump_p(ThreadContext context) {

// Temporarily return false until a backend can be implemented

// to copy the CRuby behavior (checking WCOREDUMP)

return context.runtime.getFalse();

}

@JRubyMethod

public IRubyObject pid(ThreadContext context) {

return context.runtime.newFixnum(pid);

}

private long shiftedValue() {

return status << 8;

}

@JRubyModule(name="Process::UID")

public static class UserID {

@JRubyMethod(name = "change_privilege", module = true)

public static IRubyObject change_privilege(IRubyObject self, IRubyObject arg) {

throw self.getRuntime().newNotImplementedError("Process::UID::change_privilege not implemented yet");

}

@Deprecated

public static IRubyObject eid(IRubyObject self) {

return euid(self.getRuntime());

}

@JRubyMethod(name = "eid", module = true)

public static IRubyObject eid(ThreadContext context, IRubyObject self) {

return euid(context.runtime);

}

@Deprecated

public static IRubyObject eid(IRubyObject self, IRubyObject arg) {

return eid(self.getRuntime(), arg);

}

@JRubyMethod(name = "eid=", module = true)

public static IRubyObject eid(ThreadContext context, IRubyObject self, IRubyObject arg) {

return eid(context.runtime, arg);

}

public static IRubyObject eid(Ruby runtime, IRubyObject arg) {

return euid_set(runtime, arg);

}

@JRubyMethod(name = "grant_privilege", module = true)

public static IRubyObject grant_privilege(IRubyObject self, IRubyObject arg) {

throw self.getRuntime().newNotImplementedError("Process::UID::grant_privilege not implemented yet");

}

@JRubyMethod(name = "re_exchange", module = true)

public static IRubyObject re_exchange(ThreadContext context, IRubyObject self) {

return switch_rb(context, self, Block.NULL_BLOCK);

}

@JRubyMethod(name = "re_exchangeable?", module = true)

public static IRubyObject re_exchangeable_p(IRubyObject self) {

throw self.getRuntime().newNotImplementedError("Process::UID::re_exchangeable? not implemented yet");

}

@Deprecated

public static IRubyObject rid(IRubyObject self) {

return rid(self.getRuntime());

}

@JRubyMethod(name = "rid", module = true)

public static IRubyObject rid(ThreadContext context, IRubyObject self) {

return rid(context.runtime);

}

public static IRubyObject rid(Ruby runtime) {

return uid(runtime);

}

@JRubyMethod(name = "sid_available?", module = true)

public static IRubyObject sid_available_p(IRubyObject self) {

throw self.getRuntime().newNotImplementedError("Process::UID::sid_available not implemented yet");

}

@JRubyMethod(name = "switch", module = true, visibility = PRIVATE)

public static IRubyObject switch_rb(ThreadContext context, IRubyObject self, Block block) {

Ruby runtime = context.runtime;

int uid = checkErrno(runtime, runtime.getPosix().getuid());

int euid = checkErrno(runtime, runtime.getPosix().geteuid());

if (block.isGiven()) {

try {

checkErrno(runtime, runtime.getPosix().seteuid(uid));

checkErrno(runtime, runtime.getPosix().setuid(euid));

return block.yield(context, runtime.getNil());

} finally {

checkErrno(runtime, runtime.getPosix().seteuid(euid));

checkErrno(runtime, runtime.getPosix().setuid(uid));

}

} else {

checkErrno(runtime, runtime.getPosix().seteuid(uid));

checkErrno(runtime, runtime.getPosix().setuid(euid));

return RubyFixnum.zero(runtime);

}

@JRubyModule(name="Process::GID")

public static class GroupID {

@JRubyMethod(name = "change_privilege", module = true)

public static IRubyObject change_privilege(IRubyObject self, IRubyObject arg) {

throw self.getRuntime().newNotImplementedError("Process::GID::change_privilege not implemented yet");

}

@Deprecated

public static IRubyObject eid(IRubyObject self) {

return eid(self.getRuntime());

}

@JRubyMethod(name = "eid", module = true)

public static IRubyObject eid(ThreadContext context, IRubyObject self) {

return eid(context.runtime);

}

public static IRubyObject eid(Ruby runtime) {

return egid(runtime);

}

@Deprecated

public static IRubyObject eid(IRubyObject self, IRubyObject arg) {

return eid(self.getRuntime(), arg);

}

@JRubyMethod(name = "eid=", module = true)

public static IRubyObject eid(ThreadContext context, IRubyObject self, IRubyObject arg) {

return eid(context.runtime, arg);

}

public static IRubyObject eid(Ruby runtime, IRubyObject arg) {

return RubyProcess.egid_set(runtime, arg);

}

@JRubyMethod(name = "grant_privilege", module = true)

public static IRubyObject grant_privilege(IRubyObject self, IRubyObject arg) {

throw self.getRuntime().newNotImplementedError("Process::GID::grant_privilege not implemented yet");

}

@JRubyMethod(name = "re_exchange", module = true)

public static IRubyObject re_exchange(ThreadContext context, IRubyObject self) {

return switch_rb(context, self, Block.NULL_BLOCK);

}

@JRubyMethod(name = "re_exchangeable?", module = true)

public static IRubyObject re_exchangeable_p(IRubyObject self) {

throw self.getRuntime().newNotImplementedError("Process::GID::re_exchangeable? not implemented yet");

}

@Deprecated

public static IRubyObject rid(IRubyObject self) {

return rid(self.getRuntime());

}

@JRubyMethod(name = "rid", module = true)

public static IRubyObject rid(ThreadContext context, IRubyObject self) {

return rid(context.runtime);

}

public static IRubyObject rid(Ruby runtime) {

return gid(runtime);

}

@JRubyMethod(name = "sid_available?", module = true)

public static IRubyObject sid_available_p(IRubyObject self) {

throw self.getRuntime().newNotImplementedError("Process::GID::sid_available not implemented yet");

}

@JRubyMethod(name = "switch", module = true, visibility = PRIVATE)

public static IRubyObject switch_rb(ThreadContext context, IRubyObject self, Block block) {

Ruby runtime = context.runtime;

int gid = checkErrno(runtime, runtime.getPosix().getgid());

int egid = checkErrno(runtime, runtime.getPosix().getegid());

if (block.isGiven()) {

try {

checkErrno(runtime, runtime.getPosix().setegid(gid));

checkErrno(runtime, runtime.getPosix().setgid(egid));

return block.yield(context, runtime.getNil());

} finally {

checkErrno(runtime, runtime.getPosix().setegid(egid));

checkErrno(runtime, runtime.getPosix().setgid(gid));

}

} else {

checkErrno(runtime, runtime.getPosix().setegid(gid));

checkErrno(runtime, runtime.getPosix().setgid(egid));

return RubyFixnum.zero(runtime);

}

@JRubyModule(name="Process::Sys")

public static class Sys {

@Deprecated

public static IRubyObject getegid(IRubyObject self) {

return egid(self.getRuntime());

}

@JRubyMethod(name = "getegid", module = true, visibility = PRIVATE)

public static IRubyObject getegid(ThreadContext context, IRubyObject self) {

return egid(context.runtime);

}

@Deprecated

public static IRubyObject geteuid(IRubyObject self) {

return euid(self.getRuntime());

}

@JRubyMethod(name = "geteuid", module = true, visibility = PRIVATE)

public static IRubyObject geteuid(ThreadContext context, IRubyObject self) {

return euid(context.runtime);

}

@Deprecated

public static IRubyObject getgid(IRubyObject self) {

return gid(self.getRuntime());

}

@JRubyMethod(name = "getgid", module = true, visibility = PRIVATE)

public static IRubyObject getgid(ThreadContext context, IRubyObject self) {

return gid(context.runtime);

}

@Deprecated

public static IRubyObject getuid(IRubyObject self) {

return uid(self.getRuntime());

}

@JRubyMethod(name = "getuid", module = true, visibility = PRIVATE)

public static IRubyObject getuid(ThreadContext context, IRubyObject self) {

return uid(context.runtime);

}

@Deprecated

public static IRubyObject setegid(IRubyObject recv, IRubyObject arg) {

return egid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "setegid", module = true, visibility = PRIVATE)

public static IRubyObject setegid(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return egid_set(context.runtime, arg);

}

@Deprecated

public static IRubyObject seteuid(IRubyObject recv, IRubyObject arg) {

return euid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "seteuid", module = true, visibility = PRIVATE)

public static IRubyObject seteuid(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return euid_set(context.runtime, arg);

}

@Deprecated

public static IRubyObject setgid(IRubyObject recv, IRubyObject arg) {

return gid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "setgid", module = true, visibility = PRIVATE)

public static IRubyObject setgid(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return gid_set(context.runtime, arg);

}

@Deprecated

public static IRubyObject setuid(IRubyObject recv, IRubyObject arg) {

return uid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "setuid", module = true, visibility = PRIVATE)

public static IRubyObject setuid(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return uid_set(context.runtime, arg);

}

@JRubyMethod(name = "abort", optional = 1, module = true, visibility = PRIVATE)

public static IRubyObject abort(ThreadContext context, IRubyObject recv, IRubyObject[] args) {

return RubyKernel.abort(context, recv, args);

}

@JRubyMethod(name = "exit!", optional = 1, module = true, visibility = PRIVATE)

public static IRubyObject exit_bang(IRubyObject recv, IRubyObject[] args) {

return RubyKernel.exit_bang(recv, args);

}

@JRubyMethod(name = "groups", module = true, visibility = PRIVATE)

public static IRubyObject groups(IRubyObject recv) {

throw recv.getRuntime().newNotImplementedError("Process#groups not yet implemented");

}

@JRubyMethod(name = "setrlimit", rest = true, module = true, visibility = PRIVATE)

public static IRubyObject setrlimit(IRubyObject recv, IRubyObject[] args) {

throw recv.getRuntime().newNotImplementedError("Process#setrlimit not yet implemented");

}

@Deprecated

public static IRubyObject getpgrp(IRubyObject recv) {

return getpgrp(recv.getRuntime());

}

@JRubyMethod(name = "getpgrp", module = true, visibility = PRIVATE)

public static IRubyObject getpgrp(ThreadContext context, IRubyObject recv) {

return getpgrp(context.runtime);

}

public static IRubyObject getpgrp(Ruby runtime) {

return runtime.newFixnum(runtime.getPosix().getpgrp());

}

@JRubyMethod(name = "groups=", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject groups_set(IRubyObject recv, IRubyObject arg) {

throw recv.getRuntime().newNotImplementedError("Process#groups not yet implemented");

}

@Deprecated

public static IRubyObject waitpid(IRubyObject recv, IRubyObject[] args) {

return waitpid(recv.getRuntime(), args);

}

@JRubyMethod(name = "waitpid", rest = true, module = true, visibility = PRIVATE)

public static IRubyObject waitpid(ThreadContext context, IRubyObject recv, IRubyObject[] args) {

return waitpid(context.runtime, args);

}

public static IRubyObject waitpid(Ruby runtime, IRubyObject[] args) {

int pid = -1;

int flags = 0;

if (args.length > 0) {

pid = (int)args[0].convertToInteger().getLongValue();

}

if (args.length > 1) {

flags = (int)args[1].convertToInteger().getLongValue();

}

int[] status = new int[1];

runtime.getPosix().errno(0);

pid = runtime.getPosix().waitpid(pid, status, flags);

raiseErrnoIfSet(runtime, ECHILD);

runtime.getCurrentContext().setLastExitStatus(RubyProcess.RubyStatus.newProcessStatus(runtime, (status[0] >> 8) & 0xff, pid));

return runtime.newFixnum(pid);

}

private interface NonNativeErrno {

public int handle(Ruby runtime, int result);

}

private static final NonNativeErrno ECHILD = new NonNativeErrno() {

public int handle(Ruby runtime, int result) {

throw runtime.newErrnoECHILDError();

}

};

@Deprecated

public static IRubyObject wait(IRubyObject recv, IRubyObject[] args) {

return wait(recv.getRuntime(), args);

}

@JRubyMethod(name = "wait", rest = true, module = true, visibility = PRIVATE)

public static IRubyObject wait(ThreadContext context, IRubyObject recv, IRubyObject[] args) {

return wait(context.runtime, args);

}

public static IRubyObject wait(Ruby runtime, IRubyObject[] args) {

if (args.length > 0) {

return waitpid(runtime, args);

}

int[] status = new int[1];

runtime.getPosix().errno(0);

int pid = runtime.getPosix().wait(status);

raiseErrnoIfSet(runtime, ECHILD);

runtime.getCurrentContext().setLastExitStatus(RubyProcess.RubyStatus.newProcessStatus(runtime, (status[0] >> 8) & 0xff, pid));

return runtime.newFixnum(pid);

}

@Deprecated

public static IRubyObject waitall(IRubyObject recv) {

return waitall(recv.getRuntime());

}

@JRubyMethod(name = "waitall", module = true, visibility = PRIVATE)

public static IRubyObject waitall(ThreadContext context, IRubyObject recv) {

return waitall(context.runtime);

}

public static IRubyObject waitall(Ruby runtime) {

POSIX posix = runtime.getPosix();

RubyArray results = runtime.newArray();

int[] status = new int[1];

int result = posix.wait(status);

while (result != -1) {

results.append(runtime.newArray(runtime.newFixnum(result), RubyProcess.RubyStatus.newProcessStatus(runtime, (status[0] >> 8) & 0xff, result)));

result = posix.wait(status);

}

return results;

}

@Deprecated

public static IRubyObject setsid(IRubyObject recv) {

return setsid(recv.getRuntime());

}

@JRubyMethod(name = "setsid", module = true, visibility = PRIVATE)

public static IRubyObject setsid(ThreadContext context, IRubyObject recv) {

return setsid(context.runtime);

}

public static IRubyObject setsid(Ruby runtime) {

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().setsid()));

}

@Deprecated

public static IRubyObject setpgrp(IRubyObject recv) {

return setpgrp(recv.getRuntime());

}

@JRubyMethod(name = "setpgrp", module = true, visibility = PRIVATE)

public static IRubyObject setpgrp(ThreadContext context, IRubyObject recv) {

return setpgrp(context.runtime);

}

public static IRubyObject setpgrp(Ruby runtime) {

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().setpgid(0, 0)));

}

@Deprecated

public static IRubyObject egid_set(IRubyObject recv, IRubyObject arg) {

return egid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "egid=", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject egid_set(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return egid_set(context.runtime, arg);

}

public static IRubyObject egid_set(Ruby runtime, IRubyObject arg) {

checkErrno(runtime, runtime.getPosix().setegid((int)arg.convertToInteger().getLongValue()));

return RubyFixnum.zero(runtime);

}

@Deprecated

public static IRubyObject euid(IRubyObject recv) {

return euid(recv.getRuntime());

}

@JRubyMethod(name = "euid", module = true, visibility = PRIVATE)

public static IRubyObject euid(ThreadContext context, IRubyObject recv) {

return euid(context.runtime);

}

public static IRubyObject euid(Ruby runtime) {

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().geteuid()));

}

@Deprecated

public static IRubyObject uid_set(IRubyObject recv, IRubyObject arg) {

return uid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "uid=", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject uid_set(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return uid_set(context.runtime, arg);

}

public static IRubyObject uid_set(Ruby runtime, IRubyObject arg) {

checkErrno(runtime, runtime.getPosix().setuid((int)arg.convertToInteger().getLongValue()));

return RubyFixnum.zero(runtime);

}

@Deprecated

public static IRubyObject gid(IRubyObject recv) {

return gid(recv.getRuntime());

}

@JRubyMethod(name = "gid", module = true, visibility = PRIVATE)

public static IRubyObject gid(ThreadContext context, IRubyObject recv) {

return gid(context.runtime);

}

public static IRubyObject gid(Ruby runtime) {

if (Platform.IS_WINDOWS) {

// MRI behavior on Windows

return RubyFixnum.zero(runtime);

}

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().getgid()));

}

@JRubyMethod(name = "maxgroups", module = true, visibility = PRIVATE)

public static IRubyObject maxgroups(IRubyObject recv) {

throw recv.getRuntime().newNotImplementedError("Process#maxgroups not yet implemented");

}

@Deprecated

public static IRubyObject getpriority(IRubyObject recv, IRubyObject arg1, IRubyObject arg2) {

return getpriority(recv.getRuntime(), arg1, arg2);

}

@JRubyMethod(name = "getpriority", required = 2, module = true, visibility = PRIVATE)

public static IRubyObject getpriority(ThreadContext context, IRubyObject recv, IRubyObject arg1, IRubyObject arg2) {

return getpriority(context.runtime, arg1, arg2);

}

public static IRubyObject getpriority(Ruby runtime, IRubyObject arg1, IRubyObject arg2) {

int which = (int)arg1.convertToInteger().getLongValue();

int who = (int)arg2.convertToInteger().getLongValue();

int result = checkErrno(runtime, runtime.getPosix().getpriority(which, who));

return runtime.newFixnum(result);

}

@Deprecated

public static IRubyObject uid(IRubyObject recv) {

return uid(recv.getRuntime());

}

@JRubyMethod(name = "uid", module = true, visibility = PRIVATE)

public static IRubyObject uid(ThreadContext context, IRubyObject recv) {

return uid(context.runtime);

}

public static IRubyObject uid(Ruby runtime) {

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().getuid()));

}

@Deprecated

public static IRubyObject waitpid2(IRubyObject recv, IRubyObject[] args) {

return waitpid2(recv.getRuntime(), args);

}

@JRubyMethod(name = "waitpid2", rest = true, module = true, visibility = PRIVATE)

public static IRubyObject waitpid2(ThreadContext context, IRubyObject recv, IRubyObject[] args) {

return waitpid2(context.runtime, args);

}

public static IRubyObject waitpid2(Ruby runtime, IRubyObject[] args) {

int pid = -1;

int flags = 0;

if (args.length > 0) {

pid = (int)args[0].convertToInteger().getLongValue();

}

if (args.length > 1) {

flags = (int)args[1].convertToInteger().getLongValue();

}

int[] status = new int[1];

pid = checkErrno(runtime, runtime.getPosix().waitpid(pid, status, flags), ECHILD);

return runtime.newArray(runtime.newFixnum(pid), RubyProcess.RubyStatus.newProcessStatus(runtime, (status[0] >> 8) & 0xff, pid));

}

@JRubyMethod(name = "initgroups", required = 2, module = true, visibility = PRIVATE)

public static IRubyObject initgroups(IRubyObject recv, IRubyObject arg1, IRubyObject arg2) {

throw recv.getRuntime().newNotImplementedError("Process#initgroups not yet implemented");

}

@JRubyMethod(name = "maxgroups=", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject maxgroups_set(IRubyObject recv, IRubyObject arg) {

throw recv.getRuntime().newNotImplementedError("Process#maxgroups_set not yet implemented");

}

@Deprecated

public static IRubyObject ppid(IRubyObject recv) {

return ppid(recv.getRuntime());

}

@JRubyMethod(name = "ppid", module = true, visibility = PRIVATE)

public static IRubyObject ppid(ThreadContext context, IRubyObject recv) {

return ppid(context.runtime);

}

public static IRubyObject ppid(Ruby runtime) {

int result = checkErrno(runtime, runtime.getPosix().getppid());

return runtime.newFixnum(result);

}

@Deprecated

public static IRubyObject gid_set(IRubyObject recv, IRubyObject arg) {

return gid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "gid=", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject gid_set(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return gid_set(context.runtime, arg);

}

public static IRubyObject gid_set(Ruby runtime, IRubyObject arg) {

int result = checkErrno(runtime, runtime.getPosix().setgid((int)arg.convertToInteger().getLongValue()));

return runtime.newFixnum(result);

}

@Deprecated

public static IRubyObject wait2(IRubyObject recv, IRubyObject[] args) {

return waitpid2(recv.getRuntime(), args);

}

@JRubyMethod(name = "wait2", rest = true, module = true, visibility = PRIVATE)

public static IRubyObject wait2(ThreadContext context, IRubyObject recv, IRubyObject[] args) {

return waitpid2(context.runtime, args);

}

@Deprecated

public static IRubyObject euid_set(IRubyObject recv, IRubyObject arg) {

return euid_set(recv.getRuntime(), arg);

}

@JRubyMethod(name = "euid=", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject euid_set(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return euid_set(context.runtime, arg);

}

public static IRubyObject euid_set(Ruby runtime, IRubyObject arg) {

checkErrno(runtime, runtime.getPosix().seteuid((int)arg.convertToInteger().getLongValue()));

return RubyFixnum.zero(runtime);

}

@Deprecated

public static IRubyObject setpriority(IRubyObject recv, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3) {

return setpriority(recv.getRuntime(), arg1, arg2, arg3);

}

@JRubyMethod(name = "setpriority", required = 3, module = true, visibility = PRIVATE)

public static IRubyObject setpriority(ThreadContext context, IRubyObject recv, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3) {

return setpriority(context.runtime, arg1, arg2, arg3);

}

public static IRubyObject setpriority(Ruby runtime, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3) {

int which = (int)arg1.convertToInteger().getLongValue();

int who = (int)arg2.convertToInteger().getLongValue();

int prio = (int)arg3.convertToInteger().getLongValue();

runtime.getPosix().errno(0);

int result = checkErrno(runtime, runtime.getPosix().setpriority(which, who, prio));

return runtime.newFixnum(result);

}

@Deprecated

public static IRubyObject setpgid(IRubyObject recv, IRubyObject arg1, IRubyObject arg2) {

return setpgid(recv.getRuntime(), arg1, arg2);

}

@JRubyMethod(name = "setpgid", required = 2, module = true, visibility = PRIVATE)

public static IRubyObject setpgid(ThreadContext context, IRubyObject recv, IRubyObject arg1, IRubyObject arg2) {

return setpgid(context.runtime, arg1, arg2);

}

public static IRubyObject setpgid(Ruby runtime, IRubyObject arg1, IRubyObject arg2) {

int pid = (int)arg1.convertToInteger().getLongValue();

int gid = (int)arg2.convertToInteger().getLongValue();

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().setpgid(pid, gid)));

}

@Deprecated

public static IRubyObject getpgid(IRubyObject recv, IRubyObject arg) {

return getpgid(recv.getRuntime(), arg);

}

@JRubyMethod(name = "getpgid", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject getpgid(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return getpgid(context.runtime, arg);

}

public static IRubyObject getpgid(Ruby runtime, IRubyObject arg) {

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().getpgid((int)arg.convertToInteger().getLongValue())));

}

@Deprecated

public static IRubyObject getrlimit(IRubyObject recv, IRubyObject arg) {

return getrlimit(recv.getRuntime(), arg);

}

@JRubyMethod(name = "getrlimit", required = 1, module = true, visibility = PRIVATE)

public static IRubyObject getrlimit(ThreadContext context, IRubyObject recv, IRubyObject arg) {

return getrlimit(context.runtime, arg);

}

public static IRubyObject getrlimit(Ruby runtime, IRubyObject arg) {

throw runtime.newNotImplementedError("Process#getrlimit not yet implemented");

}

@Deprecated

public static IRubyObject egid(IRubyObject recv) {

return egid(recv.getRuntime());

}

@JRubyMethod(name = "egid", module = true, visibility = PRIVATE)

public static IRubyObject egid(ThreadContext context, IRubyObject recv) {

return egid(context.runtime);

}

public static IRubyObject egid(Ruby runtime) {

if (Platform.IS_WINDOWS) {

// MRI behavior on Windows

return RubyFixnum.zero(runtime);

}

return runtime.newFixnum(checkErrno(runtime, runtime.getPosix().getegid()));

}

private static int parseSignalString(Ruby runtime, String value) {

boolean negative = value.startsWith("-");

// Gets rid of the - if there is one present.

if (negative) value = value.substring(1);

// We need the SIG for sure.

String signalName = value.startsWith("SIG") ? value : "SIG" + value;

try {

int signalValue = Signal.valueOf(signalName).intValue();

return negative ? -signalValue : signalValue;

} catch (IllegalArgumentException ex) {

throw runtime.newArgumentError("unsupported name `" + signalName + "'");

}

public static interface Kernel32 {

jnr.ffi.Pointer OpenProcess(int dwDesiredAccess, int bInheritHandle, int dwProcessId);

int CloseHandle(jnr.ffi.Pointer handle);

int GetLastError();

int GetExitCodeProcess(jnr.ffi.Pointer hProcess, jnr.ffi.Pointer pointerToExitCodeDword);

int TerminateProcess(jnr.ffi.Pointer hProcess, int uExitCode);

}

private static class Kernel32Holder {

static Kernel32 kernel32Instance = Library.loadLibrary("kernel32", Kernel32.class); // instantiated lazily

}

static Kernel32 kernel32() {

return Kernel32Holder.kernel32Instance;

}

@Deprecated

public static IRubyObject kill(IRubyObject recv, IRubyObject[] args) {

return kill(recv.getRuntime(), args);

}

@JRubyMethod(name = "kill", rest = true, module = true, visibility = PRIVATE)

public static IRubyObject kill(ThreadContext context, IRubyObject recv, IRubyObject[] args) {

return kill(context.runtime, args);

}

public static IRubyObject kill(Ruby runtime, IRubyObject[] args) {

if (args.length < 2) {

throw runtime.newArgumentError("wrong number of arguments -- kill(sig, pid...)");

}

int signal;

if (args[0] instanceof RubyFixnum) {

signal = (int) ((RubyFixnum) args[0]).getLongValue();

} else if (args[0] instanceof RubySymbol) {

signal = parseSignalString(runtime, args[0].toString());

} else if (args[0] instanceof RubyString) {

signal = parseSignalString(runtime, args[0].toString());

} else {

signal = parseSignalString(runtime, args[0].checkStringType().toString());

}

boolean processGroupKill = signal < 0;

if (processGroupKill) {

if (Platform.IS_WINDOWS) {

throw runtime.newErrnoEINVALError("group signals not implemented in windows");

}

signal = -signal;

}

if (Platform.IS_WINDOWS) {

int PROCESS_QUERY_INFORMATION = 0x0400;

int ERROR_INVALID_PARAMETER = 0x57;

int PROCESS_TERMINATE = 0x0001;

int STILL_ACTIVE = 259;

jnr.ffi.Pointer status = Memory.allocate(Library.getRuntime(kernel32()), 4);

for (int i = 1; i < args.length; i++) {

int pid = RubyNumeric.num2int(args[i]);

if (signal == 0) {

jnr.ffi.Pointer ptr = kernel32().OpenProcess(PROCESS_QUERY_INFORMATION, 0, pid);

if(ptr != null && ptr.address() != -1) {

try {

if(kernel32().GetExitCodeProcess(ptr, status) == 0) {

throw runtime.newErrnoEPERMError("unable to call GetExitCodeProcess " + pid);

} else {

if(status.getInt(0) != STILL_ACTIVE) {

throw runtime.newErrnoEPERMError("Process exists but is not alive anymore " + pid);

}

} finally {

kernel32().CloseHandle(ptr);

}

} else {

if (kernel32().GetLastError() == ERROR_INVALID_PARAMETER) {

throw runtime.newErrnoESRCHError();

} else {

throw runtime.newErrnoEPERMError("Process does not exist " + pid);

}

} else if (signal == 9) { //SIGKILL

jnr.ffi.Pointer ptr = kernel32().OpenProcess(PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION, 0, pid);

if(ptr != null && ptr.address() != -1) {

try {

if(kernel32().GetExitCodeProcess(ptr, status) == 0) {

throw runtime.newErrnoEPERMError("unable to call GetExitCodeProcess " + pid); // todo better error messages

} else {

if (status.getInt(0) == STILL_ACTIVE) {

if (kernel32().TerminateProcess(ptr, 0) == 0) {

throw runtime.newErrnoEPERMError("unable to call TerminateProcess " + pid);

}

// success

}

} finally {

kernel32().CloseHandle(ptr);

}

} else {

if (kernel32().GetLastError() == ERROR_INVALID_PARAMETER) {

throw runtime.newErrnoESRCHError();

} else {

throw runtime.newErrnoEPERMError("Process does not exist " + pid);

}

} else {

throw runtime.newNotImplementedError("this signal not yet implemented in windows");

}

} else {

POSIX posix = runtime.getPosix();

for (int i = 1; i < args.length; i++) {

int pid = RubyNumeric.num2int(args[i]);

// FIXME: It may be possible to killpg on systems which support it. POSIX library

// needs to tell whether a particular method works or not

if (pid == 0) pid = runtime.getPosix().getpid();

checkErrno(runtime, posix.kill(processGroupKill ? -pid : pid, signal));

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jruby/src/org/jruby/RubyProcess.java at parallel_boot · MSNexploder/jruby · GitHub

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