diff -r fd16c54261b3 -r 489c9b5090e2 hotspot/src/os/linux/vm/hpi_linux.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/src/os/linux/vm/hpi_linux.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,220 @@ +/* + * 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 +#include +#include +#include +#include + +// 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