src/jdk.net/linux/native/libextnet/RdmaPollSelectorImpl.c
author bpb
Wed, 06 Feb 2019 12:48:01 -0800
branchrsocket-branch
changeset 57156 81e4a12fd1a4
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child 57160 c502c299d41e
permissions -rw-r--r--
rsocket-branch: change recent copyright year to 2019 and new files to 2019 only
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/*
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 * Copyright (c) 2019, Oracle and/or its affiliates. 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.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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#include <Rsocket.h>
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#include "jni_util.h"
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#include "jvm.h"
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#include "nio.h"
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#include "jdk_internal_net_rdma_RdmaPollSelectorImpl.h"
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JNIEXPORT void JNICALL
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Java_jdk_internal_net_rdma_RdmaPollSelectorImpl_init(JNIEnv *env,
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        jclass clazz) {
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    loadRdmaFuncs(env);
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}
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JNIEXPORT jint JNICALL
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Java_jdk_internal_net_rdma_RdmaPollSelectorImpl_poll0(JNIEnv *env,
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        jclass clazz, jlong address, jint numfds, jint timeout) {
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    struct pollfd *a;
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    int res;
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    a = (struct pollfd *) jlong_to_ptr(address);
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    res = rs_poll(a, numfds, timeout);
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    if (res < 0) {
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        if (errno == EINTR) {
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            return IOS_INTERRUPTED;
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        } else {
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            JNU_ThrowIOExceptionWithLastError(env, "poll failed");
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            return IOS_THROWN;
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        }
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    }
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    return (jint) res;
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}