archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-28 15:24:43 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8284161: Implementation of Virtual Threads (Preview)

Browse source 
Co-authored-by: Ron Pressler <rpressler@openjdk.org>
Co-authored-by: Alan Bateman <alanb@openjdk.org>
Co-authored-by: Erik Österlund <eosterlund@openjdk.org>
Co-authored-by: Andrew Haley <aph@openjdk.org>
Co-authored-by: Rickard Bäckman <rbackman@openjdk.org>
Co-authored-by: Markus Grönlund <mgronlun@openjdk.org>
Co-authored-by: Leonid Mesnik <lmesnik@openjdk.org>
Co-authored-by: Serguei Spitsyn <sspitsyn@openjdk.org>
Co-authored-by: Chris Plummer <cjplummer@openjdk.org>
Co-authored-by: Coleen Phillimore <coleenp@openjdk.org>
Co-authored-by: Robbin Ehn <rehn@openjdk.org>
Co-authored-by: Stefan Karlsson <stefank@openjdk.org>
Co-authored-by: Thomas Schatzl <tschatzl@openjdk.org>
Co-authored-by: Sergey Kuksenko <skuksenko@openjdk.org>
Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, egahlin, mseledtsov, coffeys, darcy
This commit is contained in:
Alan Bateman 2022-05-07 08:06:16 +00:00
parent 5212535a27
commit 9583e3657e
1133 changed files with 95935 additions and 8335 deletions
Download patch file Download diff file Expand all files Collapse all files

44
src/java.base/macosx/classes/sun/nio/ch/DefaultPollerProvider.java Normal file
View file

@ -0,0 +1,44 @@
/*
* Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.nio.ch;
import java.io.IOException;
/**
* Default PollerProvider for macOS.
*/
class DefaultPollerProvider extends PollerProvider {
DefaultPollerProvider() { }
@Override
Poller readPoller() throws IOException {
return new KQueuePoller(true);
}
@Override
Poller writePoller() throws IOException {
return new KQueuePoller(false);
}
}

9
src/java.base/macosx/classes/sun/nio/ch/KQueue.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -47,6 +47,9 @@ class KQueue {
* void *udata; // opaque user data identifier
* };
*/
static {
IOUtil.load();
}
private static final int SIZEOF_KQUEUEEVENT = keventSize();
private static final int OFFSET_IDENT = identOffset();
private static final int OFFSET_FILTER = filterOffset();
@ -114,8 +117,4 @@ class KQueue {
static native int poll(int kqfd, long pollAddress, int nevents, long timeout)
throws IOException;
static {
IOUtil.load();
}
}

76
src/java.base/macosx/classes/sun/nio/ch/KQueuePoller.java Normal file
View file

@ -0,0 +1,76 @@
/*
* Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.nio.ch;
import java.io.IOException;
import static sun.nio.ch.KQueue.*;
/**
* Poller implementation based on the kqueue facility.
*/
class KQueuePoller extends Poller {
private static final int MAX_EVENTS_TO_POLL = 512;
private final int kqfd;
private final int filter;
private final long address;
KQueuePoller(boolean read) throws IOException {
super(read);
this.kqfd = KQueue.create();
this.filter = (read) ? EVFILT_READ : EVFILT_WRITE;
this.address = KQueue.allocatePollArray(MAX_EVENTS_TO_POLL);
}
@Override
int fdVal() {
return kqfd;
}
@Override
void implRegister(int fdVal) throws IOException {
int err = KQueue.register(kqfd, fdVal, filter, (EV_ADD|EV_ONESHOT));
if (err != 0)
throw new IOException("kevent failed: " + err);
}
@Override
void implDeregister(int fdVal) {
KQueue.register(kqfd, fdVal, filter, EV_DELETE);
}
@Override
int poll(int timeout) throws IOException {
int n = KQueue.poll(kqfd, address, MAX_EVENTS_TO_POLL, timeout);
int i = 0;
while (i < n) {
long keventAddress = KQueue.getEvent(address, i);
int fdVal = KQueue.getDescriptor(keventAddress);
polled(fdVal);
i++;
}
return n;
}
}

10
src/java.base/macosx/classes/sun/nio/ch/KQueueSelectorImpl.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -36,6 +36,7 @@ import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import jdk.internal.misc.Blocker;
import static sun.nio.ch.KQueue.EVFILT_READ;
import static sun.nio.ch.KQueue.EVFILT_WRITE;
@ -119,7 +120,12 @@ class KQueueSelectorImpl extends SelectorImpl {
do {
long startTime = timedPoll ? System.nanoTime() : 0;
numEntries = KQueue.poll(kqfd, pollArrayAddress, MAX_KEVENTS, to);
long comp = Blocker.begin(blocking);
try {
numEntries = KQueue.poll(kqfd, pollArrayAddress, MAX_KEVENTS, to);
} finally {
Blocker.end(comp);
}
if (numEntries == IOStatus.INTERRUPTED && timedPoll) {
// timed poll interrupted so need to adjust timeout
long adjust = System.nanoTime() - startTime;