--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/unix/native/libnio/ch/DatagramDispatcher.c Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2002, 2012, 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 "jni.h"
+#include "jni_util.h"
+#include "jvm.h"
+#include "jlong.h"
+#include "sun_nio_ch_DatagramDispatcher.h"
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/socket.h>
+#include <string.h>
+
+#include "nio_util.h"
+#include <limits.h>
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_DatagramDispatcher_read0(JNIEnv *env, jclass clazz,
+ jobject fdo, jlong address, jint len)
+{
+ jint fd = fdval(env, fdo);
+ void *buf = (void *)jlong_to_ptr(address);
+ int result = recv(fd, buf, len, 0);
+ if (result < 0 && errno == ECONNREFUSED) {
+ JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0);
+ return -2;
+ }
+ return convertReturnVal(env, result, JNI_TRUE);
+}
+
+
+JNIEXPORT jlong JNICALL
+Java_sun_nio_ch_DatagramDispatcher_readv0(JNIEnv *env, jclass clazz,
+ jobject fdo, jlong address, jint len)
+{
+ jint fd = fdval(env, fdo);
+ ssize_t result = 0;
+ struct iovec *iov = (struct iovec *)jlong_to_ptr(address);
+ struct msghdr m;
+ if (len > IOV_MAX) {
+ len = IOV_MAX;
+ }
+
+ // initialize the message
+ memset(&m, 0, sizeof(m));
+ m.msg_iov = iov;
+ m.msg_iovlen = len;
+
+ result = recvmsg(fd, &m, 0);
+ if (result < 0 && errno == ECONNREFUSED) {
+ JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0);
+ return -2;
+ }
+ return convertLongReturnVal(env, (jlong)result, JNI_TRUE);
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_DatagramDispatcher_write0(JNIEnv *env, jclass clazz,
+ jobject fdo, jlong address, jint len)
+{
+ jint fd = fdval(env, fdo);
+ void *buf = (void *)jlong_to_ptr(address);
+ int result = send(fd, buf, len, 0);
+ if (result < 0 && errno == ECONNREFUSED) {
+ JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0);
+ return -2;
+ }
+ return convertReturnVal(env, result, JNI_FALSE);
+}
+
+JNIEXPORT jlong JNICALL
+Java_sun_nio_ch_DatagramDispatcher_writev0(JNIEnv *env, jclass clazz,
+ jobject fdo, jlong address, jint len)
+{
+ jint fd = fdval(env, fdo);
+ struct iovec *iov = (struct iovec *)jlong_to_ptr(address);
+ struct msghdr m;
+ ssize_t result = 0;
+ if (len > IOV_MAX) {
+ len = IOV_MAX;
+ }
+
+ // initialize the message
+ memset(&m, 0, sizeof(m));
+ m.msg_iov = iov;
+ m.msg_iovlen = len;
+
+ result = sendmsg(fd, &m, 0);
+ if (result < 0 && errno == ECONNREFUSED) {
+ JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0);
+ return -2;
+ }
+ return convertLongReturnVal(env, (jlong)result, JNI_FALSE);
+}