/*

 * Copyright (c) 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.

 *

 * 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.

 */

#include <stdio.h>

#include <jni.h>

#include <signal.h>

#include <sys/ucontext.h>

#ifdef __cplusplus

extern "C" {

#endif

void sig_handler(int sig, siginfo_t *info, ucontext_t *context) {

    printf( " HANDLER (1) " );

}

JNIEXPORT void JNICALL Java_TestJNI_doSomething(JNIEnv *env, jclass klass, jint val) {

    struct sigaction act;

    struct sigaction oact;

    act.sa_flags = SA_ONSTACK|SA_RESTART|SA_SIGINFO;

    sigfillset(&act.sa_mask);

    act.sa_handler = SIG_DFL;

    act.sa_sigaction = (void (*)())sig_handler;

    sigaction(0x20+val, &act, &oact);

    printf( " doSomething(%d) " , val);

    printf( " old handler = %p " , oact.sa_handler);

}

#ifdef __cplusplus

}

#endif