1 /*
   2  * Copyright (c) 2001, 2003, Oracle and/or its affiliates. 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include "jni.h"
  27 
  28 /**
  29  * The maximum buffer size for WSASend/WSARecv. Microsoft recommendation for
  30  * blocking operations is to use buffers no larger than 64k. We need the
  31  * maximum to be less than 128k to support asynchronous close on Windows
  32  * Server 2003 and newer editions of Windows.
  33  */
  34 #define MAX_BUFFER_SIZE             ((128*1024)-1)
  35 
  36 jint fdval(JNIEnv *env, jobject fdo);
  37 jlong handleval(JNIEnv *env, jobject fdo);
  38 jboolean isNT();
  39 jint convertReturnVal(JNIEnv *env, jint n, jboolean r);
  40 jlong convertLongReturnVal(JNIEnv *env, jlong n, jboolean r);
  41 jboolean purgeOutstandingICMP(JNIEnv *env, jclass clazz, jint fd);
  42 jint handleSocketError(JNIEnv *env, int errorValue);
  43 
  44 #ifdef _WIN64
  45 
  46 struct iovec {
  47     jlong  iov_base;
  48     jint  iov_len;
  49 };
  50 
  51 #else
  52 
  53 struct iovec {
  54     jint  iov_base;
  55     jint  iov_len;
  56 };
  57 
  58 #endif