/*
* Copyright ( c ) 1995 , 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 .
*/
/*
* Common AWT definitions
*/
#ifndef _AWT_
#define _AWT_
#include "jvm.h"
#include "jni_util.h"
#include "debug_util.h"
#if !defined (HEADLESS) && !defined (MACOSX)
#include <X11/Xlib.h>
#include <X11/Xutil.h>
typedef char Boolean;
#endif /* !HEADLESS && !MACOSX */
/* The JVM instance: defined in awt_LoadLibrary.c */
extern JavaVM *jvm;
extern jclass tkClass;
extern jmethodID awtLockMID;
extern jmethodID awtUnlockMID;
extern jmethodID awtWaitMID;
extern jmethodID awtNotifyMID;
extern jmethodID awtNotifyAllMID;
extern jboolean awtLockInited;
/* Perform sanity and consistency checks on AWT locking */
#ifdef DEBUG
#define DEBUG_AWT_LOCK
#endif
/*
* The following locking primitives should be defined
*
# define AWT_LOCK ( )
# define AWT_NOFLUSH_UNLOCK ( )
# define AWT_WAIT ( tm )
# define AWT_NOTIFY ( )
# define AWT_NOTIFY_ALL ( )
*/
/*
* Convenience macros based on AWT_NOFLUSH_UNLOCK
*/
extern void awt_output_flush();
#define AWT_UNLOCK() AWT_FLUSH_UNLOCK()
#define AWT_FLUSH_UNLOCK() do { \
awt_output_flush(); \
AWT_NOFLUSH_UNLOCK(); \
} while (0 )
#define AWT_UNLOCK_CHECK_EXCEPTION(env) \
do { \
AWT_UNLOCK(); \
JNU_CHECK_EXCEPTION(env); \
} while (0 )
#define AWT_LOCK_IMPL() \
do { \
if ((*env)->ExceptionCheck(env)) { \
(*env)->ExceptionClear(env); \
} \
(*env)->CallStaticVoidMethod(env, tkClass, awtLockMID); \
if ((*env)->ExceptionCheck(env)) { \
(*env)->ExceptionClear(env); \
} \
} while (0 )
#define AWT_NOFLUSH_UNLOCK_IMPL() \
do { \
jthrowable pendingException; \
if ((pendingException = (*env)->ExceptionOccurred(env)) != NULL) { \
(*env)->ExceptionClear(env); \
} \
(*env)->CallStaticVoidMethod(env, tkClass, awtUnlockMID); \
if ((*env)->ExceptionCheck(env)) { \
(*env)->ExceptionClear(env); \
} \
if (pendingException) { \
(*env)->Throw (env, pendingException); \
} \
} while (0 )
#define AWT_WAIT_IMPL(tm) \
(*env)->CallStaticVoidMethod(env, tkClass, awtWaitMID, (jlong)(tm))
#define AWT_NOTIFY_IMPL() \
(*env)->CallStaticVoidMethod(env, tkClass, awtNotifyMID)
#define AWT_NOTIFY_ALL_IMPL() \
(*env)->CallStaticVoidMethod(env, tkClass, awtNotifyAllMID)
/*
* Unfortunately AWT_LOCK debugging does not work with XAWT due to mixed
* Java / C use of AWT lock .
*/
#define AWT_LOCK() AWT_LOCK_IMPL()
#define AWT_NOFLUSH_UNLOCK() AWT_NOFLUSH_UNLOCK_IMPL()
#define AWT_WAIT(tm) AWT_WAIT_IMPL(tm)
#define AWT_NOTIFY() AWT_NOTIFY_IMPL()
#define AWT_NOTIFY_ALL() AWT_NOTIFY_ALL_IMPL()
#if !defined (HEADLESS) && !defined (MACOSX)
extern Display *awt_display; /* awt_GraphicsEnv.c */
extern Boolean awt_ModLockIsShiftLock; /* XToolkit.c */
#endif /* !HEADLESS && !MACOSX */
#endif /* ! _AWT_ */
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