ccheung@5420: /*
ccheung@5420:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
ccheung@5420:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ccheung@5420:  *
ccheung@5420:  * This code is free software; you can redistribute it and/or modify it
ccheung@5420:  * under the terms of the GNU General Public License version 2 only, as
ccheung@5420:  * published by the Free Software Foundation.
ccheung@5420:  *
ccheung@5420:  * This code is distributed in the hope that it will be useful, but WITHOUT
ccheung@5420:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ccheung@5420:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ccheung@5420:  * version 2 for more details (a copy is included in the LICENSE file that
ccheung@5420:  * accompanied this code).
ccheung@5420:  *
ccheung@5420:  * You should have received a copy of the GNU General Public License version
ccheung@5420:  * 2 along with this work; if not, write to the Free Software Foundation,
ccheung@5420:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ccheung@5420:  *
ccheung@5420:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ccheung@5420:  * or visit www.oracle.com if you need additional information or have any
ccheung@5420:  * questions.
ccheung@5420:  */
ccheung@5420: 
ccheung@5420: #include <stdio.h>
ccheung@5420: #include <jni.h>
ccheung@5420: #include <signal.h>
ccheung@5420: #include <sys/ucontext.h>
ccheung@5420: 
ccheung@5420: #ifdef __cplusplus
ccheung@5420: extern "C" {
ccheung@5420: #endif
ccheung@5420: 
ccheung@5420: void sig_handler(int sig, siginfo_t *info, ucontext_t *context) {
ccheung@5420: 
ccheung@5420:     printf( " HANDLER (1) " );
ccheung@5420: }
ccheung@5420: 
ccheung@5420: JNIEXPORT void JNICALL Java_TestJNI_doSomething(JNIEnv *env, jclass klass, jint val) {
ccheung@5420:     struct sigaction act;
ccheung@5420:     struct sigaction oact;
ccheung@5420: 
ccheung@5420:     act.sa_flags = SA_ONSTACK|SA_RESTART|SA_SIGINFO;
ccheung@5420:     sigfillset(&act.sa_mask);
ccheung@5420:     act.sa_handler = SIG_DFL;
ccheung@5420:     act.sa_sigaction = (void (*)())sig_handler;
ccheung@5420:     sigaction(0x20+val, &act, &oact);
ccheung@5420: 
ccheung@5420:     printf( " doSomething(%d) " , val);
ccheung@5420:     printf( " old handler = %p " , oact.sa_handler);
ccheung@5420: }
ccheung@5420: 
ccheung@5420: #ifdef __cplusplus
ccheung@5420: }
ccheung@5420: #endif
ccheung@5420: