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/*
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* Copyright 2000-2002 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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#include <netdb.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <poll.h>
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#if __linux__
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#include <netinet/in.h>
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#endif
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#include "jni.h"
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#include "jni_util.h"
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#include "net_util.h"
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#include "jvm.h"
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#include "jlong.h"
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#include "sun_nio_ch_SocketChannelImpl.h"
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#include "nio_util.h"
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#include "nio.h"
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JNIEXPORT jint JNICALL
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Java_sun_nio_ch_SocketChannelImpl_checkConnect(JNIEnv *env, jobject this,
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jobject fdo, jboolean block,
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jboolean ready)
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{
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int error = 0;
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895
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socklen_t n = sizeof(int);
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2
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jint fd = fdval(env, fdo);
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int result = 0;
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struct pollfd poller;
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poller.revents = 1;
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if (!ready) {
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poller.fd = fd;
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poller.events = POLLOUT;
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poller.revents = 0;
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result = poll(&poller, 1, block ? -1 : 0);
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if (result < 0) {
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JNU_ThrowIOExceptionWithLastError(env, "Poll failed");
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return IOS_THROWN;
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}
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if (!block && (result == 0))
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return IOS_UNAVAILABLE;
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}
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if (poller.revents) {
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errno = 0;
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result = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &n);
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if (result < 0) {
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handleSocketError(env, errno);
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return JNI_FALSE;
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} else if (error) {
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handleSocketError(env, error);
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return JNI_FALSE;
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}
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return 1;
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}
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return 0;
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}
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