1 /*
   2  * Copyright (c) 2001, 2018, 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 #include "jni_util.h"
  28 #include "jvm.h"
  29 #include "jlong.h"
  30 #include <errno.h>
  31 #include <sys/types.h>
  32 
  33 #define RESTARTABLE(_cmd, _result) do { \
  34   do { \
  35     _result = _cmd; \
  36   } while((_result == -1) && (errno == EINTR)); \
  37 } while(0)
  38 
  39 /* Defines SO_REUSEPORT */
  40 #ifndef SO_REUSEPORT
  41 #ifdef __linux__
  42 #define SO_REUSEPORT 15
  43 #elif __solaris__
  44 #define SO_REUSEPORT 0x100e
  45 #elif defined(AIX) || defined(MACOSX)
  46 #define SO_REUSEPORT 0x0200
  47 #else
  48 #define SO_REUSEPORT 0
  49 #endif
  50 #endif
  51 
  52 /* NIO utility procedures */
  53 
  54 
  55 /* Defined in IOUtil.c */
  56 
  57 jint fdval(JNIEnv *env, jobject fdo);
  58 
  59 jint convertReturnVal(JNIEnv *env, jint n, jboolean reading);
  60 jlong convertLongReturnVal(JNIEnv *env, jlong n, jboolean reading);
  61 
  62 
  63 /* Defined in Net.c */
  64 
  65 JNIEXPORT jint JNICALL
  66 handleSocketError(JNIEnv *env, jint errorValue);