/*
* Copyright (c) 2000, 2010, 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.
*/
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <poll.h>
#if __linux__
#include <netinet/in.h>
#endif
#include "jni.h"
#include "jni_util.h"
#include "net_util.h"
#include "jvm.h"
#include "jlong.h"
#include "sun_nio_ch_SocketChannelImpl.h"
#include "nio_util.h"
#include "nio.h"
JNIEXPORT jint JNICALL
Java_sun_nio_ch_SocketChannelImpl_checkConnect(JNIEnv *env, jobject this,
jobject fdo, jboolean block,
jboolean ready)
{
int error = 0;
socklen_t n = sizeof(int);
jint fd = fdval(env, fdo);
int result = 0;
struct pollfd poller;
poller.revents = 1;
if (!ready) {
poller.fd = fd;
poller.events = POLLOUT;
poller.revents = 0;
result = poll(&poller, 1, block ? -1 : 0);
if (result < 0) {
JNU_ThrowIOExceptionWithLastError(env, "Poll failed");
return IOS_THROWN;
}
if (!block && (result == 0))
return IOS_UNAVAILABLE;
}
if (poller.revents) {
errno = 0;
result = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &n);
if (result < 0) {
handleSocketError(env, errno);
return JNI_FALSE;
} else if (error) {
handleSocketError(env, error);
return JNI_FALSE;
}
return 1;
}
return 0;
}
JNIEXPORT jint JNICALL
Java_sun_nio_ch_SocketChannelImpl_sendOutOfBandData(JNIEnv* env, jclass this,
jobject fdo, jbyte b)
{
int n = send(fdval(env, fdo), (const void*)&b, 1, MSG_OOB);
return convertReturnVal(env, n, JNI_FALSE);
}