1 /* 2 * Copyright (c) 1995, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * Common AWT definitions 28 */ 29 30 #ifndef _AWT_ 31 #define _AWT_ 32 33 #include "jvm.h" 34 #include "jni_util.h" 35 #include "debug_util.h" 36 37 #ifndef HEADLESS 38 #include <X11/Intrinsic.h> 39 #endif /* !HEADLESS */ 40 41 42 /* The JVM instance: defined in awt_MToolkit.c */ 43 extern JavaVM *jvm; 44 45 extern jclass tkClass; 46 extern jmethodID awtLockMID; 47 extern jmethodID awtUnlockMID; 48 extern jmethodID awtWaitMID; 49 extern jmethodID awtNotifyMID; 50 extern jmethodID awtNotifyAllMID; 51 extern jboolean awtLockInited; 52 53 /* Perform sanity and consistency checks on AWT locking */ 54 #ifdef DEBUG 55 #define DEBUG_AWT_LOCK 56 #endif 57 58 /* 59 * The following locking primitives should be defined 60 * 61 #define AWT_LOCK() 62 #define AWT_NOFLUSH_UNLOCK() 63 #define AWT_WAIT(tm) 64 #define AWT_NOTIFY() 65 #define AWT_NOTIFY_ALL() 66 */ 67 68 /* 69 * Convenience macros based on AWT_NOFLUSH_UNLOCK 70 */ 71 extern void awt_output_flush(); 72 #define AWT_UNLOCK() AWT_FLUSH_UNLOCK() 73 #define AWT_FLUSH_UNLOCK() do { \ 74 awt_output_flush(); \ 75 AWT_NOFLUSH_UNLOCK(); \ 76 } while (0) 77 78 #define AWT_LOCK_IMPL() \ 79 (*env)->CallStaticVoidMethod(env, tkClass, awtLockMID) 80 81 #define AWT_NOFLUSH_UNLOCK_IMPL() \ 82 do { \ 83 jthrowable pendingException; \ 84 if ((pendingException = (*env)->ExceptionOccurred(env)) != NULL) { \ 85 (*env)->ExceptionClear(env); \ 86 } \ 87 (*env)->CallStaticVoidMethod(env, tkClass, awtUnlockMID); \ 88 if (pendingException) { \ 89 if ((*env)->ExceptionCheck(env)) { \ 90 (*env)->ExceptionDescribe(env); \ 91 (*env)->ExceptionClear(env); \ 92 } \ 93 (*env)->Throw(env, pendingException); \ 94 } \ 95 } while (0) 96 #define AWT_WAIT_IMPL(tm) \ 97 (*env)->CallStaticVoidMethod(env, tkClass, awtWaitMID, (jlong)(tm)) 98 #define AWT_NOTIFY_IMPL() \ 99 (*env)->CallStaticVoidMethod(env, tkClass, awtNotifyMID) 100 #define AWT_NOTIFY_ALL_IMPL() \ 101 (*env)->CallStaticVoidMethod(env, tkClass, awtNotifyAllMID) 102 103 /* 104 * Unfortunately AWT_LOCK debugging does not work with XAWT due to mixed 105 * Java/C use of AWT lock. 106 */ 107 #define AWT_LOCK() AWT_LOCK_IMPL() 108 #define AWT_NOFLUSH_UNLOCK() AWT_NOFLUSH_UNLOCK_IMPL() 109 #define AWT_WAIT(tm) AWT_WAIT_IMPL(tm) 110 #define AWT_NOTIFY() AWT_NOTIFY_IMPL() 111 #define AWT_NOTIFY_ALL() AWT_NOTIFY_ALL_IMPL() 112 113 #ifndef HEADLESS 114 extern Display *awt_display; /* awt_GraphicsEnv.c */ 115 extern Boolean awt_ModLockIsShiftLock; /* XToolkit.c */ 116 #endif /* !HEADLESS */ 117 118 #endif /* ! _AWT_ */