author | alanb |
Mon, 11 Oct 2010 09:17:47 +0100 | |
changeset 6855 | d73cf79cf294 |
parent 5547 | f4b087cbb361 |
child 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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// |
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// Parts of the HPI interface for which the HotSparc does not use the |
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// HPI (because the interruptible IO mechanims used are different). |
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// |
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#include <sys/socket.h> |
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#include <sys/poll.h> |
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#include <sys/filio.h> |
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#include <unistd.h> |
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#include <netdb.h> |
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#include <setjmp.h> |
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// HPI_FileInterface |
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// Many system calls can be interrupted by signals and must be restarted. |
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// Restart support was added without disturbing the extent of thread |
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// interruption support. |
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inline int hpi::close(int fd) { |
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RESTARTABLE_RETURN_INT(::close(fd)); |
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} |
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inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) { |
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INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); |
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} |
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inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) { |
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INTERRUPTIBLE_RETURN_INT(::write(fd, buf, nBytes), os::Solaris::clear_interrupted); |
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} |
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// HPI_SocketInterface |
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inline int hpi::socket_close(int fd) { |
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RESTARTABLE_RETURN_INT(::close(fd)); |
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} |
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inline int hpi::socket(int domain, int type, int protocol) { |
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return ::socket(domain, type, protocol); |
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} |
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inline int hpi::recv(int fd, char *buf, int nBytes, int flags) { |
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INTERRUPTIBLE_RETURN_INT(::recv(fd, buf, nBytes, flags), os::Solaris::clear_interrupted); |
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} |
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inline int hpi::send(int fd, char *buf, int nBytes, int flags) { |
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INTERRUPTIBLE_RETURN_INT(::send(fd, buf, nBytes, flags), os::Solaris::clear_interrupted); |
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} |
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inline int hpi::raw_send(int fd, char *buf, int nBytes, int flags) { |
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RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, flags)); |
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} |
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// As both poll and select can be interrupted by signals, we have to be |
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// prepared to restart the system call after updating the timeout, unless |
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// a poll() is done with timeout == -1, in which case we repeat with this |
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// "wait forever" value. |
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inline int hpi::timeout(int fd, long timeout) { |
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int res; |
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struct timeval t; |
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julong prevtime, newtime; |
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static const char* aNull = 0; |
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struct pollfd pfd; |
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pfd.fd = fd; |
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pfd.events = POLLIN; |
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gettimeofday(&t, &aNull); |
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prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; |
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for(;;) { |
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INTERRUPTIBLE_NORESTART(::poll(&pfd, 1, timeout), res, os::Solaris::clear_interrupted); |
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if(res == OS_ERR && errno == EINTR) { |
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if(timeout != -1) { |
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gettimeofday(&t, &aNull); |
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newtime = ((julong)t.tv_sec * 1000) + t.tv_usec /1000; |
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timeout -= newtime - prevtime; |
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if(timeout <= 0) |
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return OS_OK; |
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prevtime = newtime; |
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} |
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} else |
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return res; |
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} |
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} |
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inline int hpi::listen(int fd, int count) { |
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if (fd < 0) |
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return OS_ERR; |
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return ::listen(fd, count); |
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} |
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inline int |
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hpi::connect(int fd, struct sockaddr *him, int len) { |
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do { |
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int _result; |
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INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result, |
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os::Solaris::clear_interrupted); |
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// Depending on when thread interruption is reset, _result could be |
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// one of two values when errno == EINTR |
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if (((_result == OS_INTRPT) || (_result == OS_ERR)) && (errno == EINTR)) { |
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/* restarting a connect() changes its errno semantics */ |
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INTERRUPTIBLE(::connect(fd, him, len), _result, |
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os::Solaris::clear_interrupted); |
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/* undo these changes */ |
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if (_result == OS_ERR) { |
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if (errno == EALREADY) errno = EINPROGRESS; /* fall through */ |
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else if (errno == EISCONN) { errno = 0; return OS_OK; } |
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} |
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} |
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return _result; |
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} while(false); |
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} |
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inline int hpi::accept(int fd, struct sockaddr *him, int *len) { |
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if (fd < 0) |
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return OS_ERR; |
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INTERRUPTIBLE_RETURN_INT((int)::accept(fd, him, (socklen_t*) len), os::Solaris::clear_interrupted); |
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} |
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inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags, |
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sockaddr *from, int *fromlen) { |
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//%%note jvm_r11 |
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INTERRUPTIBLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen), os::Solaris::clear_interrupted); |
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} |
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inline int hpi::sendto(int fd, char *buf, int len, int flags, |
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struct sockaddr *to, int tolen) { |
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//%%note jvm_r11 |
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INTERRUPTIBLE_RETURN_INT((int)::sendto(fd, buf, len, (unsigned int) flags, to, tolen),os::Solaris::clear_interrupted); |
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} |
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inline int hpi::socket_available(int fd, jint *pbytes) { |
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if (fd < 0) |
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return OS_OK; |
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int ret; |
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RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret); |
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//%% note ioctl can return 0 when successful, JVM_SocketAvailable |
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// is expected to return 0 on failure and 1 on success to the jdk. |
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return (ret == OS_ERR) ? 0 : 1; |
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} |
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/* |
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HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown, |
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int, "%d", |
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(int fd, int howto), |
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("fd = %d, howto = %d", fd, howto), |
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(fd, howto)); |
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*/ |
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inline int hpi::socket_shutdown(int fd, int howto){ |
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return ::shutdown(fd, howto); |
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} |
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/* |
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HPIDECL(bind, "bind", _socket, Bind, |
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int, "%d", |
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(int fd, struct sockaddr *him, int len), |
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("fd = %d, him = %p, len = %d", |
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fd, him, len), |
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(fd, him, len)); |
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*/ |
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inline int hpi::bind(int fd, struct sockaddr *him, int len){ |
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INTERRUPTIBLE_RETURN_INT_NORESTART(::bind(fd, him, len),os::Solaris::clear_interrupted); |
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} |
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/* |
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HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName, |
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int, "%d", |
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(int fd, struct sockaddr *him, int *len), |
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("fd = %d, him = %p, len = %p", |
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fd, him, len), |
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(fd, him, len)); |
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*/ |
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inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){ |
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return ::getsockname(fd, him, (socklen_t*) len); |
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} |
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/* |
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HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d", |
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(char *hostname, int namelen), |
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("hostname = %p, namelen = %d", |
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hostname, namelen), |
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(hostname, namelen)); |
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*/ |
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inline int hpi::get_host_name(char* name, int namelen){ |
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return ::gethostname(name, namelen); |
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} |
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/* |
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HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d", |
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(int fd, int level, int optname, char *optval, int* optlen), |
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("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p", |
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fd, level, optname, optval, optlen), |
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(fd, level, optname, optval, optlen)); |
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*/ |
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inline int hpi::get_sock_opt(int fd, int level, int optname, |
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char *optval, int* optlen){ |
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return ::getsockopt(fd, level, optname, optval, (socklen_t*) optlen); |
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} |
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/* |
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HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d", |
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(int fd, int level, int optname, const char *optval, int optlen), |
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("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d", |
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fd, level, optname, optval, optlen), |
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(fd, level, optname, optval, optlen)); |
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*/ |
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inline int hpi::set_sock_opt(int fd, int level, int optname, |
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const char *optval, int optlen){ |
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return ::setsockopt(fd, level, optname, optval, optlen); |
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} |
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//Reconciliation History |
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// 1.3 98/10/21 18:17:14 hpi_win32.hpp |
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// 1.6 99/06/28 11:01:36 hpi_win32.hpp |
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//End |