Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * 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