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 #if !defined(HEADLESS) && !defined(MACOSX) 38 #include <X11/Xlib.h> 39 #include <X11/Xutil.h> 40 typedef char Boolean; 41 #endif /* !HEADLESS && !MACOSX */ 42 43 44 /* The JVM instance: defined in awt_MToolkit.c */ 45 extern JavaVM *jvm; 46 47 extern jclass tkClass; 48 extern jmethodID awtLockMID; 49 extern jmethodID awtUnlockMID; 50 extern jmethodID awtWaitMID; 51 extern jmethodID awtNotifyMID; 52 extern jmethodID awtNotifyAllMID; 53 extern jboolean awtLockInited; 54 55 /* Perform sanity and consistency checks on AWT locking */ 56 #ifdef DEBUG 57 #define DEBUG_AWT_LOCK 58 #endif 59 60 /* 61 * The following locking primitives should be defined 62 * 63 #define AWT_LOCK() 64 #define AWT_NOFLUSH_UNLOCK() 65 #define AWT_WAIT(tm) 66 #define AWT_NOTIFY() 67 #define AWT_NOTIFY_ALL() 68 */ 69 70 /* 71 * Convenience macros based on AWT_NOFLUSH_UNLOCK 72 */ 73 extern void awt_output_flush(); 74 #define AWT_UNLOCK() AWT_FLUSH_UNLOCK() 75 #define AWT_FLUSH_UNLOCK() do { \ 76 awt_output_flush(); \ 77 AWT_NOFLUSH_UNLOCK(); \ 78 } while (0) 79 80 #define AWT_UNLOCK_CHECK_EXCEPTION(env) \ 81 do { \ 82 AWT_UNLOCK(); \ 83 JNU_CHECK_EXCEPTION(env); \ 84 } while (0) 85 86 #define AWT_LOCK_IMPL() \ 87 do { \ 88 (*env)->CallStaticVoidMethod(env, tkClass, awtLockMID); \ 89 if ((*env)->ExceptionCheck(env)) { \ 90 (*env)->ExceptionClear(env); \ 91 } \ 92 } while(0) 93 94 #define AWT_NOFLUSH_UNLOCK_IMPL() \ 95 do { \ 96 jthrowable pendingException; \ 97 if ((pendingException = (*env)->ExceptionOccurred(env)) != NULL) { \ 98 (*env)->ExceptionClear(env); \ 99 } \ 100 (*env)->CallStaticVoidMethod(env, tkClass, awtUnlockMID); \ 101 if ((*env)->ExceptionCheck(env)) { \ 102 (*env)->ExceptionClear(env); \ 103 } \ 104 if (pendingException) { \ 105 (*env)->Throw(env, pendingException); \ 106 } \ 107 } while (0) 108 #define AWT_WAIT_IMPL(tm) \ 109 (*env)->CallStaticVoidMethod(env, tkClass, awtWaitMID, (jlong)(tm)) 110 #define AWT_NOTIFY_IMPL() \ 111 (*env)->CallStaticVoidMethod(env, tkClass, awtNotifyMID) 112 #define AWT_NOTIFY_ALL_IMPL() \ 113 (*env)->CallStaticVoidMethod(env, tkClass, awtNotifyAllMID) 114 115 /* 116 * Unfortunately AWT_LOCK debugging does not work with XAWT due to mixed 117 * Java/C use of AWT lock. 118 */ 119 #define AWT_LOCK() AWT_LOCK_IMPL() 120 #define AWT_NOFLUSH_UNLOCK() AWT_NOFLUSH_UNLOCK_IMPL() 121 #define AWT_WAIT(tm) AWT_WAIT_IMPL(tm) 122 #define AWT_NOTIFY() AWT_NOTIFY_IMPL() 123 #define AWT_NOTIFY_ALL() AWT_NOTIFY_ALL_IMPL() 124 125 #if !defined(HEADLESS) && !defined(MACOSX) 126 extern Display *awt_display; /* awt_GraphicsEnv.c */ 127 extern Boolean awt_ModLockIsShiftLock; /* XToolkit.c */ 128 #endif /* !HEADLESS && !MACOSX */ 129 130 #endif /* ! _AWT_ */ 131