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