/*

 * Copyright 1999-2005 Sun Microsystems, Inc.  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.

 *

 * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

//

// Because the interruptible IO has been dropped for HotSpot/Linux,

// the following HPI interface is very different from HotSparc.

//

#include <unistd.h>

#include <sys/socket.h>

#include <sys/poll.h>

#include <sys/ioctl.h>

#include <netdb.h>

// HPI_FileInterface

inline int hpi::close(int fd) {

  return ::close(fd);

}

inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) {

  size_t res;

  RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);

  return res;

}

inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) {

  size_t res;

  RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);

  return res;

}

// HPI_SocketInterface

inline int hpi::socket_close(int fd) {

  return ::close(fd);

}

inline int hpi::socket(int domain, int type, int protocol) {

  return ::socket(domain, type, protocol);

}

inline int hpi::recv(int fd, char *buf, int nBytes, int flags) {

  RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, (unsigned int) flags));

}

inline int hpi::send(int fd, char *buf, int nBytes, int flags) {

  RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, (unsigned int) flags));

}

inline int hpi::timeout(int fd, long timeout) {

  julong prevtime,newtime;

  struct timeval t;

  gettimeofday(&t, NULL);

  prevtime = ((julong)t.tv_sec * 1000)  +  t.tv_usec / 1000;

  for(;;) {

    struct pollfd pfd;

    pfd.fd = fd;

    pfd.events = POLLIN | POLLERR;

    int res = ::poll(&pfd, 1, timeout);

    if (res == OS_ERR && errno == EINTR) {

      // On Linux any value < 0 means "forever"

      if(timeout >= 0) {

        gettimeofday(&t, NULL);

        newtime = ((julong)t.tv_sec * 1000)  +  t.tv_usec / 1000;

        timeout -= newtime - prevtime;

        if(timeout <= 0)

          return OS_OK;

        prevtime = newtime;

      }

    } else

      return res;

  }

}

inline int hpi::listen(int fd, int count) {

  return ::listen(fd, count);

}

inline int hpi::connect(int fd, struct sockaddr *him, int len) {

  RESTARTABLE_RETURN_INT(::connect(fd, him, len));

}

inline int hpi::accept(int fd, struct sockaddr *him, int *len) {

  // This cast is from int to unsigned int on linux.  Since we

  // only pass the parameter "len" around the vm and don't try to

  // fetch it's value, this cast is safe for now. The java.net group

  // may need and want to change this interface someday if socklen_t goes

  // to 64 bits on some platform that we support.

  // Linux doc says this can't return EINTR, unlike accept() on Solaris

  return ::accept(fd, him, (socklen_t *)len);

}

inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags,

                         sockaddr *from, int *fromlen) {

  RESTARTABLE_RETURN_INT(::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen));

}

inline int hpi::sendto(int fd, char *buf, int len, int flags,

                        struct sockaddr *to, int tolen) {

  RESTARTABLE_RETURN_INT(::sendto(fd, buf, len, (unsigned int) flags, to, tolen));

}

inline int hpi::socket_available(int fd, jint *pbytes) {

  // Linux doc says EINTR not returned, unlike Solaris

  int ret = ::ioctl(fd, FIONREAD, pbytes);

  //%% note ioctl can return 0 when successful, JVM_SocketAvailable

  // is expected to return 0 on failure and 1 on success to the jdk.

  return (ret < 0) ? 0 : 1;

}

// following methods have been updated to avoid problems in

// hpi's sockets calls based on sys_api_td.c (JDK1.3)

/*

HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown,

        int, "%d",

        (int fd, int howto),

        ("fd = %d, howto = %d", fd, howto),

        (fd, howto));

        */

inline int hpi::socket_shutdown(int fd, int howto){

  return ::shutdown(fd, howto);

}

/*

HPIDECL(bind, "bind", _socket, Bind,

        int, "%d",

        (int fd, struct sockaddr *him, int len),

        ("fd = %d, him = %p, len = %d",

         fd, him, len),

        (fd, him, len));

*/

inline int hpi::bind(int fd, struct sockaddr *him, int len){

  return ::bind(fd, him, len);

}

/*

HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName,

        int, "%d",

        (int fd, struct sockaddr *him, int *len),

        ("fd = %d, him = %p, len = %p",

         fd, him, len),

        (fd, him, len));

        */

inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){

  return ::getsockname(fd, him, (socklen_t *)len);

}

/*

HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d",

        (char *hostname, int namelen),

        ("hostname = %p, namelen = %d",

         hostname, namelen),

        (hostname, namelen));

        */

inline int hpi::get_host_name(char* name, int namelen){

  return ::gethostname(name, namelen);

}

/*

HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d",

        (int fd, int level, int optname, char *optval, int* optlen),

        ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p",

         fd, level, optname, optval, optlen),

        (fd, level, optname, optval, optlen));

        */

inline int hpi::get_sock_opt(int fd, int level, int optname,

                             char *optval, int* optlen){

  return ::getsockopt(fd, level, optname, optval, (socklen_t *)optlen);

}

/*

HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d",

        (int fd, int level, int optname, const char *optval, int optlen),

        ("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d",

         fd, level, optname, optval, optlen),

        (fd, level, optname, optval, optlen));

        */

inline int hpi::set_sock_opt(int fd, int level, int optname,

                             const char *optval, int optlen){

  return ::setsockopt(fd, level, optname, optval, optlen);

}

// Reconciliation History

// hpi_solaris.hpp      1.9 99/08/30 16:31:23

// End