mirror of
https://github.com/openjdk/jdk.git
synced 2025-08-28 07:14:30 +02:00
121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2000, 2018, 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 || errno == EWOULDBLOCK)
|
|
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;
|
|
}
|