/*
* Copyright ( c ) 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 .
*
* 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>
#include <errno.h>
#include <string.h>
static void sig_handler(int sig, siginfo_t *info, ucontext_t *context) {
printf( " HANDLER (1) " );
}
JNIEXPORT void JNICALL Java_TestPosixSig_changeSigActionFor(JNIEnv *env, jclass klass, jint val) {
struct sigaction act;
act.sa_handler = (void (*)())sig_handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0 ;
int retval = sigaction(val, &act, 0 );
if (retval != 0 ) {
printf("ERROR: failed to set %d signal handler error=%s\n" , val, strerror(errno));
}
}
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