| /* |
| * Copyright (c) 2000, 2016, 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> |
| |
| #if __linux__ |
| #include <netinet/in.h> |
| #endif |
| |
| #if defined(__solaris__) && !defined(_SOCKLEN_T) |
| typedef size_t socklen_t; /* New in SunOS 5.7, so need this for 5.6 */ |
| #endif |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| #include "net_util.h" |
| #include "jvm.h" |
| #include "jlong.h" |
| #include "sun_nio_ch_ServerSocketChannelImpl.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_sun_nio_ch_ServerSocketChannelImpl_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_sun_nio_ch_ServerSocketChannelImpl_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 = accept(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; |
| } |