nio/ch/SocketChannelImpl.c

0N/A/*
3261N/A * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation.  Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A#include <netdb.h>
0N/A#include <sys/types.h>
0N/A#include <sys/socket.h>
0N/A#include <stdlib.h>
0N/A#include <errno.h>
0N/A#include <string.h>
0N/A#include <poll.h>
0N/A
0N/A#if __linux__
0N/A#include <netinet/in.h>
0N/A#endif
0N/A
0N/A#include "jni.h"
0N/A#include "jni_util.h"
0N/A#include "net_util.h"
0N/A#include "jvm.h"
0N/A#include "jlong.h"
0N/A#include "sun_nio_ch_SocketChannelImpl.h"
0N/A#include "nio_util.h"
0N/A#include "nio.h"
0N/A
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_sun_nio_ch_SocketChannelImpl_checkConnect(JNIEnv *env, jobject this,
0N/A                                               jobject fdo, jboolean block,
0N/A                                               jboolean ready)
0N/A{
0N/A    int error = 0;
438N/A    socklen_t n = sizeof(int);
0N/A    jint fd = fdval(env, fdo);
0N/A    int result = 0;
0N/A    struct pollfd poller;
0N/A
0N/A    poller.revents = 1;
0N/A    if (!ready) {
0N/A        poller.fd = fd;
0N/A        poller.events = POLLOUT;
0N/A        poller.revents = 0;
0N/A        result = poll(&poller, 1, block ? -1 : 0);
0N/A        if (result < 0) {
0N/A            JNU_ThrowIOExceptionWithLastError(env, "Poll failed");
0N/A            return IOS_THROWN;
0N/A        }
0N/A        if (!block && (result == 0))
0N/A            return IOS_UNAVAILABLE;
0N/A    }
0N/A
0N/A    if (poller.revents) {
0N/A        errno = 0;
0N/A        result = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &n);
0N/A        if (result < 0) {
0N/A            handleSocketError(env, errno);
0N/A            return JNI_FALSE;
0N/A        } else if (error) {
0N/A            handleSocketError(env, error);
0N/A            return JNI_FALSE;
0N/A        }
0N/A        return 1;
0N/A    }
0N/A    return 0;
0N/A}
2614N/A
2614N/AJNIEXPORT jint JNICALL
2614N/AJava_sun_nio_ch_SocketChannelImpl_sendOutOfBandData(JNIEnv* env, jclass this,
2614N/A                                                    jobject fdo, jbyte b)
2614N/A{
2614N/A    int n = send(fdval(env, fdo), (const void*)&b, 1, MSG_OOB);
2614N/A    return convertReturnVal(env, n, JNI_FALSE);
2614N/A}