view jdk/src/macosx/native/sun/osxapp/ThreadUtilities.m @ 15985:b9e25a486549

8006634: Unify LWCToolkit.invokeAndWait() and sun.awt.datatransfer.ToolkitThreadBlockedHandler Summary: Changed the logic for the nested event loops and deleted deadlock detection Reviewed-by: art, denis
author pchelko
date Mon, 25 Feb 2013 10:17:25 +0000
parents 3638f33225ec
children 6dadb192ad81
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 * 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.
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 * questions.

#import <AppKit/AppKit.h>
#import <JavaNativeFoundation/JavaNativeFoundation.h>
#import <objc/message.h>

#import "ThreadUtilities.h"

// The following must be named "jvm", as there are extern references to it in AWT
JavaVM *jvm = NULL;
static JNIEnv *appKitEnv = NULL;

@implementation ThreadUtilities

+ (JNIEnv*)getJNIEnv {
    if (appKitEnv == NULL) {
        (*jvm)->AttachCurrentThreadAsDaemon(jvm, (void **)&appKitEnv, NULL);
    return appKitEnv;

+ (JNIEnv*)getJNIEnvUncached {
    JNIEnv *env = NULL;
    (*jvm)->AttachCurrentThreadAsDaemon(jvm, (void **)&env, nil);
    return env;

+ (void)performOnMainThreadWaiting:(BOOL)wait block:(void (^)())block {
    if ([NSThread isMainThread] && wait == YES) {
    } else { 
        [JNFRunLoop performOnMainThreadWaiting:wait withBlock:block]; 

+ (void)performOnMainThread:(SEL)aSelector on:(id)target withObject:(id)arg waitUntilDone:(BOOL)wait {
    if ([NSThread isMainThread] && wait == YES) {
        [target performSelector:aSelector withObject:arg];
    } else {
        [JNFRunLoop performOnMainThread:aSelector on:target withObject:arg waitUntilDone:wait];


void OSXAPP_SetJavaVM(JavaVM *vm)
    jvm = vm;