J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | */ |
| 28 | |
| 29 | #include "jni.h" |
| 30 | #include "jni_util.h" |
| 31 | #include "jvm.h" |
| 32 | #include "jlong.h" |
| 33 | #include "sun_nio_ch_DatagramDispatcher.h" |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/uio.h> |
| 36 | #include <sys/socket.h> |
| 37 | |
| 38 | #include "nio_util.h" |
| 39 | |
| 40 | JNIEXPORT jint JNICALL |
| 41 | Java_sun_nio_ch_DatagramDispatcher_read0(JNIEnv *env, jclass clazz, |
| 42 | jobject fdo, jlong address, jint len) |
| 43 | { |
| 44 | jint fd = fdval(env, fdo); |
| 45 | void *buf = (void *)jlong_to_ptr(address); |
| 46 | int result = recv(fd, buf, len, 0); |
| 47 | if (result < 0 && errno == ECONNREFUSED) { |
| 48 | JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0); |
| 49 | return -2; |
| 50 | } |
| 51 | return convertReturnVal(env, result, JNI_TRUE); |
| 52 | } |
| 53 | |
| 54 | |
| 55 | JNIEXPORT jlong JNICALL |
| 56 | Java_sun_nio_ch_DatagramDispatcher_readv0(JNIEnv *env, jclass clazz, |
| 57 | jobject fdo, jlong address, jint len) |
| 58 | { |
| 59 | jint fd = fdval(env, fdo); |
| 60 | ssize_t result = 0; |
| 61 | struct iovec *iov = (struct iovec *)jlong_to_ptr(address); |
| 62 | struct msghdr m; |
| 63 | if (len > 16) { |
| 64 | len = 16; |
| 65 | } |
| 66 | |
| 67 | m.msg_name = NULL; |
| 68 | m.msg_namelen = 0; |
| 69 | m.msg_iov = iov; |
| 70 | m.msg_iovlen = len; |
| 71 | #ifdef __solaris__ |
| 72 | m.msg_accrights = NULL; |
| 73 | m.msg_accrightslen = 0; |
| 74 | #endif |
| 75 | |
| 76 | #ifdef __linux__ |
| 77 | m.msg_control = NULL; |
| 78 | m.msg_controllen = 0; |
| 79 | #endif |
| 80 | |
| 81 | result = recvmsg(fd, &m, 0); |
| 82 | if (result < 0 && errno == ECONNREFUSED) { |
| 83 | JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0); |
| 84 | return -2; |
| 85 | } |
| 86 | return convertLongReturnVal(env, (jlong)result, JNI_TRUE); |
| 87 | } |
| 88 | |
| 89 | JNIEXPORT jint JNICALL |
| 90 | Java_sun_nio_ch_DatagramDispatcher_write0(JNIEnv *env, jclass clazz, |
| 91 | jobject fdo, jlong address, jint len) |
| 92 | { |
| 93 | jint fd = fdval(env, fdo); |
| 94 | void *buf = (void *)jlong_to_ptr(address); |
| 95 | int result = send(fd, buf, len, 0); |
| 96 | if (result < 0 && errno == ECONNREFUSED) { |
| 97 | JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0); |
| 98 | return -2; |
| 99 | } |
| 100 | return convertReturnVal(env, result, JNI_FALSE); |
| 101 | } |
| 102 | |
| 103 | JNIEXPORT jlong JNICALL |
| 104 | Java_sun_nio_ch_DatagramDispatcher_writev0(JNIEnv *env, jclass clazz, |
| 105 | jobject fdo, jlong address, jint len) |
| 106 | { |
| 107 | jint fd = fdval(env, fdo); |
| 108 | struct iovec *iov = (struct iovec *)jlong_to_ptr(address); |
| 109 | struct msghdr m; |
| 110 | ssize_t result = 0; |
| 111 | if (len > 16) { |
| 112 | len = 16; |
| 113 | } |
| 114 | |
| 115 | m.msg_name = NULL; |
| 116 | m.msg_namelen = 0; |
| 117 | m.msg_iov = iov; |
| 118 | m.msg_iovlen = len; |
| 119 | #ifdef __solaris__ |
| 120 | m.msg_accrights = NULL; |
| 121 | m.msg_accrightslen = 0; |
| 122 | #endif |
| 123 | |
| 124 | #ifdef __linux__ |
| 125 | m.msg_control = NULL; |
| 126 | m.msg_controllen = 0; |
| 127 | #endif |
| 128 | |
| 129 | result = sendmsg(fd, &m, 0); |
| 130 | if (result < 0 && errno == ECONNREFUSED) { |
| 131 | JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0); |
| 132 | return -2; |
| 133 | } |
| 134 | return convertLongReturnVal(env, (jlong)result, JNI_FALSE); |
| 135 | } |