| /* |
| * Copyright (c) 2011, 2013, 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. |
| */ |
| |
| #import <AppKit/AppKit.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; |
| static jobject appkitThreadGroup = NULL; |
| static NSString* JavaRunLoopMode = @"javaRunLoopMode"; |
| static NSArray<NSString*> *javaModes = nil; |
| |
| static inline void attachCurrentThread(void** env) { |
| if ([NSThread isMainThread]) { |
| JavaVMAttachArgs args; |
| args.version = JNI_VERSION_1_4; |
| args.name = "AppKit Thread"; |
| args.group = appkitThreadGroup; |
| (*jvm)->AttachCurrentThreadAsDaemon(jvm, env, &args); |
| } else { |
| (*jvm)->AttachCurrentThreadAsDaemon(jvm, env, NULL); |
| } |
| } |
| |
| @implementation ThreadUtilities |
| |
| + (void)initialize { |
| /* All the standard modes plus ours */ |
| javaModes = [[NSArray alloc] initWithObjects:NSDefaultRunLoopMode, |
| NSModalPanelRunLoopMode, |
| NSEventTrackingRunLoopMode, |
| JavaRunLoopMode, |
| nil]; |
| } |
| |
| + (JNIEnv*)getJNIEnv { |
| AWT_ASSERT_APPKIT_THREAD; |
| if (appKitEnv == NULL) { |
| attachCurrentThread((void **)&appKitEnv); |
| } |
| return appKitEnv; |
| } |
| |
| + (JNIEnv*)getJNIEnvUncached { |
| JNIEnv *env = NULL; |
| attachCurrentThread((void **)&env); |
| return env; |
| } |
| |
| + (void)detachCurrentThread { |
| (*jvm)->DetachCurrentThread(jvm); |
| } |
| |
| + (void)setAppkitThreadGroup:(jobject)group { |
| appkitThreadGroup = group; |
| } |
| |
| /* This is needed because we can't directly pass a block to |
| * performSelectorOnMainThreadWaiting .. since it expects a selector |
| */ |
| + (void)invokeBlock:(void (^)())block { |
| block(); |
| } |
| |
| /* |
| * When running a block where either we don't wait, or it needs to run on another thread |
| * we need to copy it from stack to heap, use the copy in the call and release after use. |
| * Do this only when we must because it could be expensive. |
| * Note : if waiting cross-thread, possibly the stack allocated copy is accessible ? |
| */ |
| + (void)invokeBlockCopy:(void (^)(void))blockCopy { |
| blockCopy(); |
| Block_release(blockCopy); |
| } |
| |
| + (void)performOnMainThreadWaiting:(BOOL)wait block:(void (^)())block { |
| if ([NSThread isMainThread] && wait == YES) { |
| block(); |
| } else { |
| if (wait == YES) { |
| [self performOnMainThread:@selector(invokeBlock:) on:self withObject:block waitUntilDone:YES]; |
| } else { |
| void (^blockCopy)(void) = Block_copy(block); |
| [self performOnMainThread:@selector(invokeBlockCopy:) on:self withObject:blockCopy waitUntilDone:NO]; |
| } |
| } |
| } |
| |
| + (void)performOnMainThread:(SEL)aSelector on:(id)target withObject:(id)arg waitUntilDone:(BOOL)wait { |
| if ([NSThread isMainThread] && wait == YES) { |
| [target performSelector:aSelector withObject:arg]; |
| } else { |
| [target performSelectorOnMainThread:aSelector withObject:arg waitUntilDone:wait modes:javaModes]; |
| } |
| } |
| |
| + (NSString*)javaRunLoopMode { |
| return JavaRunLoopMode; |
| } |
| |
| @end |
| |
| |
| void OSXAPP_SetJavaVM(JavaVM *vm) |
| { |
| jvm = vm; |
| } |
| |