mirror of git://gcc.gnu.org/git/gcc.git
145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
/* 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>
|
|
#ifdef HAVE_SYS_SELECT_H
|
|
#include <sys/select.h>
|
|
#endif
|
|
#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);
|
|
}
|