--- /dev/null	2018-06-30 13:49:24.634979840 -0700
+++ new/src/jdk.net/linux/native/libextnet/RdmaServerSocketChannelImpl.c	2018-06-30 14:07:23.782166879 -0700
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2000, 2018, 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 <stdlib.h>
+#include <netdb.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <rdma/rsocket.h>
+#include <netinet/in.h>
+
+#include "jni.h"
+#include "jni_util.h"
+#include "net_util.h"
+#include "jvm.h"
+#include "jlong.h"
+#include "rdma_ch_RdmaServerSocketChannelImpl.h"
+#include "nio.h"
+#include "nio_util.h"
+
+
+static jfieldID fd_fdID;        /* java.io.FileDescriptor.fd */
+static jclass isa_class;        /* java.net.InetSocketAddress */
+static jmethodID isa_ctorID;    /*   .InetSocketAddress(InetAddress, int) */
+
+
+JNIEXPORT void JNICALL
+Java_rdma_ch_RdmaServerSocketChannelImpl_initIDs(JNIEnv *env, jclass c)
+{
+    jclass cls;
+
+    cls = (*env)->FindClass(env, "java/io/FileDescriptor");
+    CHECK_NULL(cls);
+    fd_fdID = (*env)->GetFieldID(env, cls, "fd", "I");
+    CHECK_NULL(fd_fdID);
+
+    cls = (*env)->FindClass(env, "java/net/InetSocketAddress");
+    CHECK_NULL(cls);
+    isa_class = (*env)->NewGlobalRef(env, cls);
+    if (isa_class == NULL) {
+        JNU_ThrowOutOfMemoryError(env, NULL);
+        return;
+    }
+    isa_ctorID = (*env)->GetMethodID(env, cls, "<init>",
+                                     "(Ljava/net/InetAddress;I)V");
+    CHECK_NULL(isa_ctorID);
+}
+
+JNIEXPORT jint JNICALL
+Java_rdma_ch_RdmaServerSocketChannelImpl_accept0(JNIEnv *env, jobject this,
+                                                jobject ssfdo, jobject newfdo,
+                                                jobjectArray isaa)
+{
+    jint ssfd = (*env)->GetIntField(env, ssfdo, fd_fdID);
+    jint newfd;
+    SOCKETADDRESS sa;
+    socklen_t sa_len = sizeof(SOCKETADDRESS);
+    jobject remote_ia = 0;
+    jobject isa;
+    jint remote_port = 0;
+
+    /*
+     * accept connection but ignore ECONNABORTED indicating that
+     * a connection was eagerly accepted but was reset before
+     * accept() was called.
+     */
+    for (;;) {
+        newfd = raccept(ssfd, &sa.sa, &sa_len);
+        if (newfd >= 0) {
+            break;
+        }
+        if (errno != ECONNABORTED) {
+            break;
+        }
+        /* ECONNABORTED => restart accept */
+    }
+
+    if (newfd < 0) {
+        if (errno == EAGAIN)
+            return IOS_UNAVAILABLE;
+        if (errno == EINTR)
+            return IOS_INTERRUPTED;
+        JNU_ThrowIOExceptionWithLastError(env, "Accept failed");
+        return IOS_THROWN;
+    }
+
+    (*env)->SetIntField(env, newfdo, fd_fdID, newfd);
+    remote_ia = NET_SockaddrToInetAddress(env, &sa, (int *)&remote_port);
+    CHECK_NULL_RETURN(remote_ia, IOS_THROWN);
+    isa = (*env)->NewObject(env, isa_class, isa_ctorID, remote_ia, remote_port);
+    CHECK_NULL_RETURN(isa, IOS_THROWN);
+    (*env)->SetObjectArrayElement(env, isaa, 0, isa);
+    return 1;
+}