1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include <Rsocket.h> 27 #include "jni_util.h" 28 #include "jvm.h" 29 #include "nio.h" 30 #include "jdk_internal_net_rdma_RdmaPollSelectorImpl.h" 31 32 JNIEXPORT void JNICALL 33 Java_jdk_internal_net_rdma_RdmaPollSelectorImpl_init(JNIEnv *env, 34 jclass clazz) { 35 loadRdmaFuncs(env); 36 } 37 38 JNIEXPORT jint JNICALL 39 Java_jdk_internal_net_rdma_RdmaPollSelectorImpl_poll0(JNIEnv *env, 40 jclass clazz, jlong address, jint numfds, jint timeout) { 41 struct pollfd *a; 42 int res; 43 44 a = (struct pollfd *) jlong_to_ptr(address); 45 res = rs_poll(a, numfds, timeout); 46 if (res < 0) { 47 if (errno == EINTR) { 48 return IOS_INTERRUPTED; 49 } else { 50 JNU_ThrowIOExceptionWithLastError(env, "poll failed"); 51 return IOS_THROWN; 52 } 53 } 54 return (jint) res; 55 }