/*

 * Copyright (c) 1997, 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.

 */

#ifndef NET_UTILS_MD_H

#define NET_UTILS_MD_H

#include <netdb.h>

#include <poll.h>

#include <sys/socket.h>

/************************************************************************

 * Macros and constants

 */

#define NET_NSEC_PER_MSEC 1000000

#define NET_NSEC_PER_SEC  1000000000

#define NET_NSEC_PER_USEC 1000

/* in case NI_MAXHOST is not defined in netdb.h */

#ifndef NI_MAXHOST

#define NI_MAXHOST 1025

#endif

/* Defines SO_REUSEPORT */

#ifndef SO_REUSEPORT

#ifdef __linux__

#define SO_REUSEPORT 15

#define SO_REUSEPORT 0x100e

#elif defined(AIX) || defined(MACOSX)

#define SO_REUSEPORT 0x0200

#else

#define SO_REUSEPORT 0

#endif

#endif

/*

 * On 64-bit JDKs we use a much larger stack and heap buffer.

 */

#ifdef _LP64

#define MAX_BUFFER_LEN 65536

#define MAX_HEAP_BUFFER_LEN 131072

#else

#define MAX_BUFFER_LEN 8192

#define MAX_HEAP_BUFFER_LEN 65536

#endif

typedef union {

    struct sockaddr     sa;

    struct sockaddr_in  sa4;

    struct sockaddr_in6 sa6;

} SOCKETADDRESS;

/************************************************************************

 * Functions

 */

int NET_Timeout(JNIEnv *env, int s, long timeout, jlong  nanoTimeStamp);

int NET_Read(int s, void* buf, size_t len);

int NET_NonBlockingRead(int s, void* buf, size_t len);

int NET_RecvFrom(int s, void *buf, int len, unsigned int flags,

                 struct sockaddr *from, socklen_t *fromlen);

int NET_ReadV(int s, const struct iovec * vector, int count);

int NET_Send(int s, void *msg, int len, unsigned int flags);

int NET_SendTo(int s, const void *msg, int len,  unsigned  int

               flags, const struct sockaddr *to, int tolen);

int NET_Writev(int s, const struct iovec * vector, int count);

int NET_Connect(int s, struct sockaddr *addr, int addrlen);

int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen);

int NET_SocketClose(int s);

int NET_Dup2(int oldfd, int newfd);

int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout);

int NET_SocketAvailable(int s, jint *pbytes);

void NET_ThrowUnknownHostExceptionWithGaiError(JNIEnv *env,

                                               const char* hostname,

                                               int gai_error);

void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name,

                                  const char *defaultDetail);

void NET_SetTrafficClass(SOCKETADDRESS *sa, int trafficClass);

#ifdef __linux__

int kernelIsV24();

int getDefaultIPv6Interface(struct in6_addr *target_addr);

#endif

#ifdef __solaris__

int net_getParam(char *driver, char *param);

#endif

#endif /* NET_UTILS_MD_H */