/*

 * 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.

 */

#ifdef HEADLESS

    #error This file should not be included in headless library

#endif

#include "awt_p.h"

#include "color.h"

#include <X11/IntrinsicP.h>

#include <X11/Xatom.h>

#include <X11/Xmd.h>

#include <X11/Xutil.h>

#include <X11/Xproto.h>

#include <jni.h>

#include <jni_util.h>

#include <sys/time.h>

#include "java_awt_event_MouseWheelEvent.h"

extern jint getModifiers(uint32_t state, jint button, jint keyCode);

extern jint getButton(uint32_t button);

static Atom OLDecorDelAtom = 0;

static Atom MWMHints = 0;

static Atom DTWMHints = 0;

static Atom decor_list[9];

#ifndef MAX

#define MAX(a,b) ((a) > (b) ? (a) : (b))

#endif

#ifndef MIN

#define MIN(a,b) ((a) < (b) ? (a) : (b))

#endif

void

awtJNI_ThreadYield(JNIEnv *env) {

    static jclass threadClass = NULL;

    static jmethodID yieldMethodID = NULL;

    /* Initialize our java identifiers once. Checking before locking

     * is a huge performance win.

     */

    if (threadClass == NULL) {

        // should enter a monitor here...

        Boolean err = FALSE;

        if (threadClass == NULL) {

            jclass tc = (*env)->FindClass(env, "java/lang/Thread");

            threadClass = (*env)->NewGlobalRef(env, tc);

            (*env)->DeleteLocalRef(env, tc);

            if (threadClass != NULL) {

                yieldMethodID = (*env)->GetStaticMethodID(env,

                                              threadClass,

                                              "yield",

                                              "()V"

                                                );

            }

        }

        if (yieldMethodID == NULL) {

            threadClass = NULL;

            err = TRUE;

        }

        if (err) {

            return;

        }

    } /* threadClass == NULL*/

    (*env)->CallStaticVoidMethod(env, threadClass, yieldMethodID);

    DASSERT(!((*env)->ExceptionOccurred(env)));

} /* awtJNI_ThreadYield() */