jdk/src/solaris/native/sun/nio/ch/SolarisEventPort.c
author alanb
Wed, 06 Jun 2012 17:59:29 +0100
changeset 12872 16fa902b1469
parent 5506 202f599c92aa
child 14342 8435a30053c1
permissions -rw-r--r--
7172826: (se) Selector based on the Solaris event port mechanism Reviewed-by: coffeys, chegar
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/*
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 * Copyright (c) 2008, 2009, 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 "jni.h"
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#include "jni_util.h"
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#include "jvm.h"
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#include "jlong.h"
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#include "nio_util.h"
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#include <stdlib.h>
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#include <dlfcn.h>
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#include <sys/types.h>
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#include <port.h>
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#include "sun_nio_ch_SolarisEventPort.h"
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JNIEXPORT jint JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1create
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    (JNIEnv* env, jclass clazz)
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{
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    int port = port_create();
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    if (port == -1) {
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        JNU_ThrowIOExceptionWithLastError(env, "port_create");
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    }
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    return (jint)port;
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}
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JNIEXPORT void JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1close
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    (JNIEnv* env, jclass clazz, jint port)
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{
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    int res;
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    RESTARTABLE(close(port), res);
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}
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JNIEXPORT jboolean JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1associate
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    (JNIEnv* env, jclass clazz, jint port, jint source, jlong objectAddress, jint events)
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{
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    uintptr_t object = (uintptr_t)jlong_to_ptr(objectAddress);
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    if (port_associate((int)port, (int)source, object, (int)events, NULL) == 0) {
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        return JNI_TRUE;
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    } else {
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        if (errno != EBADFD)
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            JNU_ThrowIOExceptionWithLastError(env, "port_associate");
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        return JNI_FALSE;
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    }
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}
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JNIEXPORT jboolean JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1dissociate
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    (JNIEnv* env, jclass clazz, jint port, jint source, jlong objectAddress)
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{
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    uintptr_t object = (uintptr_t)jlong_to_ptr(objectAddress);
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    if (port_dissociate((int)port, (int)source, object) == 0) {
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        return JNI_TRUE;
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    } else {
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        if (errno != ENOENT)
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            JNU_ThrowIOExceptionWithLastError(env, "port_dissociate");
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        return JNI_FALSE;
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    }
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}
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JNIEXPORT void JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1send(JNIEnv* env, jclass clazz,
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    jint port, jint events)
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{
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    if (port_send((int)port, (int)events, NULL) == -1) {
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        JNU_ThrowIOExceptionWithLastError(env, "port_send");
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    }
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}
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JNIEXPORT void JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1get(JNIEnv* env, jclass clazz,
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    jint port, jlong eventAddress)
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{
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    int res;
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    port_event_t* ev = (port_event_t*)jlong_to_ptr(eventAddress);
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    RESTARTABLE(port_get((int)port, ev, NULL), res);
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    if (res == -1) {
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        JNU_ThrowIOExceptionWithLastError(env, "port_get");
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    }
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}
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JNIEXPORT jint JNICALL
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Java_sun_nio_ch_SolarisEventPort_port_1getn(JNIEnv* env, jclass clazz,
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    jint port, jlong arrayAddress, jint max, jlong timeout)
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{
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    int res;
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    uint_t n = 1;
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    port_event_t* list = (port_event_t*)jlong_to_ptr(arrayAddress);
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    timespec_t ts;
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    timespec_t* tsp;
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    if (timeout >= 0L) {
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        ts.tv_sec = timeout / 1000;
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        ts.tv_nsec = 1000000 * (timeout % 1000);
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        tsp = &ts;
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    } else {
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        tsp = NULL;
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    }
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    res = port_getn((int)port, list, (uint_t)max, &n, tsp);
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    if (res == -1) {
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        if (errno != ETIME && errno != EINTR)
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            JNU_ThrowIOExceptionWithLastError(env, "port_getn");
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    }
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    return (jint)n;
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}