/*

 * Copyright (c) 1997, 2012, 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 <sys/socket.h>

#include <sys/types.h>

#include <netdb.h>

#include <netinet/in.h>

#include <unistd.h>

#include <sys/poll.h>

int NET_Timeout(int s, long timeout);

int NET_Read(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);

#define NET_WAIT_READ    0x01

#define NET_WAIT_WRITE   0x02

#define NET_WAIT_CONNECT 0x04

jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout);

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

 * Macros and constants

 */

/*

 * 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

#ifdef AF_INET6

#define SOCKADDR        union { \

                            struct sockaddr_in him4; \

                            struct sockaddr_in6 him6; \

                        }

#define SOCKADDR_LEN    (ipv6_available() ? sizeof(SOCKADDR) : \

                         sizeof(struct sockaddr_in))

#else

#define SOCKADDR        union { struct sockaddr_in him4; }

#define SOCKADDR_LEN    sizeof(SOCKADDR)

#endif

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

 *  Utilities

 */

#ifdef __linux__

int kernelIsV24();

#ifdef AF_INET6

int getDefaultIPv6Interface(struct in6_addr *target_addr);

#endif

#endif

#ifdef __solaris__

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

#ifndef SO_FLOW_SLA

#define SO_FLOW_SLA 0x1018

#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4

#pragma pack(4)

#endif

/*

 * Used with the setsockopt(SO_FLOW_SLA, ...) call to set

 * per socket service level properties.

 * When the application uses per-socket API, we will enforce the properties

 * on both outbound and inbound packets.

 *

 * For now, only priority and maxbw are supported in SOCK_FLOW_PROP_VERSION1.

 */

typedef struct sock_flow_props_s {

        int             sfp_version;

        uint32_t        sfp_mask;

        int             sfp_priority;   /* flow priority */

        uint64_t        sfp_maxbw;      /* bandwidth limit in bps */

        int             sfp_status;     /* flow create status for getsockopt */

} sock_flow_props_t;

#define SOCK_FLOW_PROP_VERSION1 1

/* bit mask values for sfp_mask */

#define SFP_MAXBW       0x00000001      /* Flow Bandwidth Limit */

#define SFP_PRIORITY    0x00000008      /* Flow priority */

/* possible values for sfp_priority */

#define SFP_PRIO_NORMAL 1

#define SFP_PRIO_HIGH   2

#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4

#pragma pack()

#endif /* _LONG_LONG_ALIGNMENT */

#endif /* SO_FLOW_SLA */

#endif /* __solaris__ */

JNIEXPORT jboolean JNICALL NET_IsFlowSupported();

#endif /* NET_UTILS_MD_H */