author | alanb |
Mon, 20 Feb 2012 18:55:10 +0000 | |
changeset 11909 | a1a7165ac1fa |
parent 7668 | d4a77089c587 |
child 13017 | 2e79ad4fea09 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2000, 2010, 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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||
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#include <windows.h> |
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#include <winsock2.h> |
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#include <ctype.h> |
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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 "sun_nio_ch_SocketDispatcher.h" |
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#include "nio.h" |
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#include "nio_util.h" |
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/************************************************************** |
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* SocketDispatcher.c |
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*/ |
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JNIEXPORT jint JNICALL |
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Java_sun_nio_ch_SocketDispatcher_read0(JNIEnv *env, jclass clazz, jobject fdo, |
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jlong address, jint len) |
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{ |
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/* set up */ |
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int i = 0; |
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DWORD read = 0; |
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DWORD flags = 0; |
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jint fd = fdval(env, fdo); |
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WSABUF buf; |
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||
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/* limit size */ |
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if (len > MAX_BUFFER_SIZE) |
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len = MAX_BUFFER_SIZE; |
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/* destination buffer and size */ |
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buf.buf = (char *)address; |
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buf.len = (u_long)len; |
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/* read into the buffers */ |
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i = WSARecv((SOCKET)fd, /* Socket */ |
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&buf, /* pointers to the buffers */ |
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(DWORD)1, /* number of buffers to process */ |
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&read, /* receives number of bytes read */ |
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&flags, /* no flags */ |
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0, /* no overlapped sockets */ |
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0); /* no completion routine */ |
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||
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if (i == SOCKET_ERROR) { |
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int theErr = (jint)WSAGetLastError(); |
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if (theErr == WSAEWOULDBLOCK) { |
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return IOS_UNAVAILABLE; |
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} |
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JNU_ThrowIOExceptionWithLastError(env, "Read failed"); |
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return IOS_THROWN; |
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} |
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return convertReturnVal(env, (jint)read, JNI_TRUE); |
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} |
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JNIEXPORT jlong JNICALL |
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Java_sun_nio_ch_SocketDispatcher_readv0(JNIEnv *env, jclass clazz, jobject fdo, |
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jlong address, jint len) |
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{ |
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/* set up */ |
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int i = 0; |
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DWORD read = 0; |
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DWORD flags = 0; |
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jint fd = fdval(env, fdo); |
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struct iovec *iovp = (struct iovec *)address; |
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WSABUF *bufs = malloc(len * sizeof(WSABUF)); |
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jint rem = MAX_BUFFER_SIZE; |
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if (bufs == 0) { |
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JNU_ThrowOutOfMemoryError(env, 0); |
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return IOS_THROWN; |
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} |
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if ((isNT() == JNI_FALSE) && (len > 16)) { |
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len = 16; |
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} |
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/* copy iovec into WSABUF */ |
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for(i=0; i<len; i++) { |
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jint iov_len = iovp[i].iov_len; |
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if (iov_len > rem) |
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iov_len = rem; |
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bufs[i].buf = (char *)iovp[i].iov_base; |
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bufs[i].len = (u_long)iov_len; |
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rem -= iov_len; |
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if (rem == 0) { |
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len = i+1; |
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break; |
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} |
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} |
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/* read into the buffers */ |
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i = WSARecv((SOCKET)fd, /* Socket */ |
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bufs, /* pointers to the buffers */ |
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(DWORD)len, /* number of buffers to process */ |
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&read, /* receives number of bytes read */ |
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&flags, /* no flags */ |
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0, /* no overlapped sockets */ |
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0); /* no completion routine */ |
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||
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/* clean up */ |
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free(bufs); |
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if (i != 0) { |
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int theErr = (jint)WSAGetLastError(); |
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if (theErr == WSAEWOULDBLOCK) { |
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return IOS_UNAVAILABLE; |
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} |
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JNU_ThrowIOExceptionWithLastError(env, "Vector read failed"); |
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return IOS_THROWN; |
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} |
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return convertLongReturnVal(env, (jlong)read, JNI_TRUE); |
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} |
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JNIEXPORT jint JNICALL |
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Java_sun_nio_ch_SocketDispatcher_write0(JNIEnv *env, jclass clazz, jobject fdo, |
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jlong address, jint len) |
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{ |
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/* set up */ |
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int i = 0; |
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DWORD written = 0; |
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jint fd = fdval(env, fdo); |
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WSABUF buf; |
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||
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faf9bd47d6ce
6395224: (so) SocketChannel writer blocked on large buffer is not preempted by close method (vista)
alanb
parents:
5506
diff
changeset
|
152 |
/* limit size */ |
faf9bd47d6ce
6395224: (so) SocketChannel writer blocked on large buffer is not preempted by close method (vista)
alanb
parents:
5506
diff
changeset
|
153 |
if (len > MAX_BUFFER_SIZE) |
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len = MAX_BUFFER_SIZE; |
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/* copy iovec into WSABUF */ |
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buf.buf = (char *)address; |
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buf.len = (u_long)len; |
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159 |
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/* read into the buffers */ |
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i = WSASend((SOCKET)fd, /* Socket */ |
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&buf, /* pointers to the buffers */ |
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(DWORD)1, /* number of buffers to process */ |
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&written, /* receives number of bytes written */ |
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0, /* no flags */ |
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0, /* no overlapped sockets */ |
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0); /* no completion routine */ |
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||
169 |
if (i == SOCKET_ERROR) { |
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int theErr = (jint)WSAGetLastError(); |
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if (theErr == WSAEWOULDBLOCK) { |
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return IOS_UNAVAILABLE; |
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} |
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JNU_ThrowIOExceptionWithLastError(env, "Write failed"); |
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return IOS_THROWN; |
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} |
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return convertReturnVal(env, (jint)written, JNI_FALSE); |
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} |
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JNIEXPORT jlong JNICALL |
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Java_sun_nio_ch_SocketDispatcher_writev0(JNIEnv *env, jclass clazz, |
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jobject fdo, jlong address, jint len) |
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{ |
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/* set up */ |
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int i = 0; |
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DWORD written = 0; |
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jint fd = fdval(env, fdo); |
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struct iovec *iovp = (struct iovec *)address; |
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WSABUF *bufs = malloc(len * sizeof(WSABUF)); |
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faf9bd47d6ce
6395224: (so) SocketChannel writer blocked on large buffer is not preempted by close method (vista)
alanb
parents:
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diff
changeset
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jint rem = MAX_BUFFER_SIZE; |
2 | 192 |
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193 |
if (bufs == 0) { |
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JNU_ThrowOutOfMemoryError(env, 0); |
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195 |
return IOS_THROWN; |
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196 |
} |
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197 |
||
198 |
if ((isNT() == JNI_FALSE) && (len > 16)) { |
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199 |
len = 16; |
|
200 |
} |
|
201 |
||
202 |
/* copy iovec into WSABUF */ |
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203 |
for(i=0; i<len; i++) { |
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5804
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6395224: (so) SocketChannel writer blocked on large buffer is not preempted by close method (vista)
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diff
changeset
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jint iov_len = iovp[i].iov_len; |
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6395224: (so) SocketChannel writer blocked on large buffer is not preempted by close method (vista)
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diff
changeset
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205 |
if (iov_len > rem) |
faf9bd47d6ce
6395224: (so) SocketChannel writer blocked on large buffer is not preempted by close method (vista)
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changeset
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206 |
iov_len = rem; |
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bufs[i].buf = (char *)iovp[i].iov_base; |
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bufs[i].len = (u_long)iov_len; |
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rem -= iov_len; |
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if (rem == 0) { |
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len = i+1; |
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212 |
break; |
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213 |
} |
2 | 214 |
} |
215 |
||
216 |
/* read into the buffers */ |
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217 |
i = WSASend((SOCKET)fd, /* Socket */ |
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bufs, /* pointers to the buffers */ |
|
219 |
(DWORD)len, /* number of buffers to process */ |
|
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&written, /* receives number of bytes written */ |
|
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0, /* no flags */ |
|
222 |
0, /* no overlapped sockets */ |
|
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0); /* no completion routine */ |
|
224 |
||
225 |
/* clean up */ |
|
226 |
free(bufs); |
|
227 |
||
228 |
if (i != 0) { |
|
229 |
int theErr = (jint)WSAGetLastError(); |
|
230 |
if (theErr == WSAEWOULDBLOCK) { |
|
231 |
return IOS_UNAVAILABLE; |
|
232 |
} |
|
233 |
JNU_ThrowIOExceptionWithLastError(env, "Vector write failed"); |
|
234 |
return IOS_THROWN; |
|
235 |
} |
|
236 |
||
237 |
return convertLongReturnVal(env, (jlong)written, JNI_FALSE); |
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} |
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240 |
JNIEXPORT void JNICALL |
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Java_sun_nio_ch_SocketDispatcher_preClose0(JNIEnv *env, jclass clazz, |
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242 |
jobject fdo) |
2 | 243 |
{ |
244 |
jint fd = fdval(env, fdo); |
|
245 |
struct linger l; |
|
246 |
int len = sizeof(l); |
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11909
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247 |
if (getsockopt(fd, SOL_SOCKET, SO_LINGER, (char *)&l, &len) == 0) { |
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|
248 |
if (l.l_onoff == 0) { |
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|
249 |
WSASendDisconnect(fd, NULL); |
2 | 250 |
} |
251 |
} |
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252 |
} |
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253 |
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254 |
JNIEXPORT void JNICALL |
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255 |
Java_sun_nio_ch_SocketDispatcher_close0(JNIEnv *env, jclass clazz, |
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256 |
jobject fdo) |
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|
257 |
{ |
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|
258 |
jint fd = fdval(env, fdo); |
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259 |
if (closesocket(fd) == SOCKET_ERROR) { |
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260 |
JNU_ThrowIOExceptionWithLastError(env, "Socket close failed"); |
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|
261 |
} |
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262 |
} |