| /* javanio.c -- implementations of functions in javanio.h. |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| /* |
| * Note, because these functions are trivial, and should be inlined, |
| * we include this file in the header, and do not compile it. |
| */ |
| |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <sys/select.h> |
| #include <sys/uio.h> |
| |
| CPNIO_EXPORT ssize_t |
| cpnio_read (int fd, void *buf, size_t nbytes) |
| { |
| return read (fd, buf, nbytes); |
| } |
| |
| CPNIO_EXPORT ssize_t |
| cpnio_readv (int fd, const struct iovec *iov, int iovcnt) |
| { |
| return readv (fd, iov, iovcnt); |
| } |
| |
| CPNIO_EXPORT ssize_t |
| cpnio_write (int fd, const void *buf, size_t nbytes) |
| { |
| return write (fd, buf, nbytes); |
| } |
| |
| CPNIO_EXPORT ssize_t |
| cpnio_writev (int fd, const struct iovec *iov, size_t iovcnt) |
| { |
| return writev (fd, iov, iovcnt); |
| } |
| |
| CPNIO_EXPORT int |
| cpnio_socket (int domain, int type, int protocol) |
| { |
| return socket (domain, type, protocol); |
| } |
| |
| CPNIO_EXPORT int |
| cpnio_connect (int fd, const struct sockaddr *addr, socklen_t addrlen) |
| { |
| return connect (fd, addr, addrlen); |
| } |
| |
| CPNIO_EXPORT int |
| cpnio_accept (int fd, struct sockaddr *addr, socklen_t *addrlen) |
| { |
| fd_set rset; |
| struct timeval tv; |
| socklen_t tvlen = sizeof(tv); |
| int ret; |
| |
| tv.tv_sec = 0; |
| tv.tv_usec = 0; |
| getsockopt (fd, SOL_SOCKET, SO_RCVTIMEO, &tv, &tvlen); |
| if (tv.tv_sec > 0 || tv.tv_usec > 0) |
| { |
| FD_ZERO(&rset); |
| FD_SET(fd,&rset); |
| ret = select (fd+1,&rset,NULL,NULL,&tv); |
| if (ret == 0) |
| { |
| errno = EAGAIN; |
| return -1; |
| } |
| } |
| return accept (fd, addr, addrlen); |
| } |
| |
| CPNIO_EXPORT ssize_t |
| cpnio_sendto (int fd, const void *msg, size_t len, int flags, |
| const struct sockaddr *to, socklen_t tolen) |
| { |
| return sendto (fd, msg, len, flags, to, tolen); |
| } |
| |
| CPNIO_EXPORT ssize_t |
| cpnio_recvfrom (int fd, void *buf, size_t len, int flags, |
| struct sockaddr *from, socklen_t *fromlen) |
| { |
| return recvfrom (fd, buf, len, flags, from, fromlen); |
| } |
| |
| CPNIO_EXPORT int |
| cpnio_fcntl (int fd, int cmd, long arg) |
| { |
| #ifdef HAVE_FCNTL |
| return fcntl (fd, cmd, arg); |
| #else |
| errno = ENOSUP; |
| return -1; |
| #endif /* HAVE_FCNTL */ |
| } |
| |
| CPNIO_EXPORT int |
| cpnio_select (int nfds, fd_set *readfds, fd_set *writefds, |
| fd_set *excepfds, struct timeval *timeo) |
| { |
| return select (nfds, readfds, writefds, excepfds, timeo); |
| } |