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/*
* Copyright (c) 1998, 2007, 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.
*
* 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.
*
*/
//
// Parts of the HPI interface for which the HotSparc does not use the
// HPI (because the interruptible IO mechanims used are different).
//
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/filio.h>
#include <unistd.h>
#include <netdb.h>
#include <setjmp.h>
// HPI_FileInterface
// Many system calls can be interrupted by signals and must be restarted.
// Restart support was added without disturbing the extent of thread
// interruption support.
inline int hpi::close(int fd) {
RESTARTABLE_RETURN_INT(::close(fd));
}
inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) {
INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted);
}
inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) {
INTERRUPTIBLE_RETURN_INT(::write(fd, buf, nBytes), os::Solaris::clear_interrupted);
}
// HPI_SocketInterface
inline int hpi::socket_close(int fd) {
RESTARTABLE_RETURN_INT(::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) {
INTERRUPTIBLE_RETURN_INT(::recv(fd, buf, nBytes, flags), os::Solaris::clear_interrupted);
}
inline int hpi::send(int fd, char *buf, int nBytes, int flags) {
INTERRUPTIBLE_RETURN_INT(::send(fd, buf, nBytes, flags), os::Solaris::clear_interrupted);
}
inline int hpi::raw_send(int fd, char *buf, int nBytes, int flags) {
RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags));
}
// As both poll and select can be interrupted by signals, we have to be
// prepared to restart the system call after updating the timeout, unless
// a poll() is done with timeout == -1, in which case we repeat with this
// "wait forever" value.
inline int hpi::timeout(int fd, long timeout) {
int res;
struct timeval t;
julong prevtime, newtime;
static const char* aNull = 0;
struct pollfd pfd;
pfd.fd = fd;
pfd.events = POLLIN;
gettimeofday(&t, &aNull);
prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
for(;;) {
INTERRUPTIBLE_NORESTART(::poll(&pfd, 1, timeout), res, os::Solaris::clear_interrupted);
if(res == OS_ERR && errno == EINTR) {
if(timeout != -1) {
gettimeofday(&t, &aNull);
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) {
if (fd < 0)
return OS_ERR;
return ::listen(fd, count);
}
inline int
hpi::connect(int fd, struct sockaddr *him, int len) {
do {
int _result;
INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result,
os::Solaris::clear_interrupted);
// Depending on when thread interruption is reset, _result could be
// one of two values when errno == EINTR
if (((_result == OS_INTRPT) || (_result == OS_ERR)) && (errno == EINTR)) {
/* restarting a connect() changes its errno semantics */
INTERRUPTIBLE(::connect(fd, him, len), _result,
os::Solaris::clear_interrupted);
/* undo these changes */
if (_result == OS_ERR) {
if (errno == EALREADY) errno = EINPROGRESS; /* fall through */
else if (errno == EISCONN) { errno = 0; return OS_OK; }
}
}
return _result;
} while(false);
}
inline int hpi::accept(int fd, struct sockaddr *him, int *len) {
if (fd < 0)
return OS_ERR;
INTERRUPTIBLE_RETURN_INT((int)::accept(fd, him, (socklen_t*) len), os::Solaris::clear_interrupted);
}
inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags,
sockaddr *from, int *fromlen) {
//%%note jvm_r11
INTERRUPTIBLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen), os::Solaris::clear_interrupted);
}
inline int hpi::sendto(int fd, char *buf, int len, int flags,
struct sockaddr *to, int tolen) {
//%%note jvm_r11
INTERRUPTIBLE_RETURN_INT((int)::sendto(fd, buf, len, (unsigned int) flags, to, tolen),os::Solaris::clear_interrupted);
}
inline int hpi::socket_available(int fd, jint *pbytes) {
if (fd < 0)
return OS_OK;
int ret;
RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret);
//%% 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 == OS_ERR) ? 0 : 1;
}
/*
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){
INTERRUPTIBLE_RETURN_INT_NORESTART(::bind(fd, him, len),os::Solaris::clear_interrupted);
}
/*
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
// 1.3 98/10/21 18:17:14 hpi_win32.hpp
// 1.6 99/06/28 11:01:36 hpi_win32.hpp
//End
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