Revision 0503738098d7585573cd2fb0710af2804bc387fa authored by Filip Roséen on 08 March 2016, 14:11:54 UTC, committed by Jean-Baptiste Kempf on 08 March 2016, 16:51:49 UTC
Introduced `EbmlTypeDispatcher` to the functions in question, making them more readable (as well as faster). This commit is a very good example of how the new header `Ebml_dispatcher.hpp` allows for better and faster code. Also removed some legacy code that has been disabled due to, by matroska, deprecated types.
1 parent 421416d
recvmsg.c
/*****************************************************************************
* recvmsg.c: POSIX recvmsg() replacement
*****************************************************************************
* Copyright © 2016 Rémi Denis-Courmont
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef _WIN32
# include <errno.h>
# include <stdlib.h>
# include <mswsock.h>
ssize_t recvmsg(int fd, struct msghdr *msg, int flags)
{
if (msg->msg_controllen != 0)
{
errno = ENOSYS;
return -1;
}
if (msg->msg_iovlen > IOV_MAX)
{
errno = EINVAL;
return -1;
}
WSABUF *buf = malloc(msg->msg_iovlen * sizeof (*buf));
if (buf == NULL)
return -1;
for (unsigned i = 0; i < msg->msg_iovlen; i++)
{
buf[i].len = msg->msg_iov[i].iov_len;
buf[i].buf = msg->msg_iov[i].iov_base;
}
DWORD dwFlags = flags;
INT fromlen = msg->msg_namelen;
DWORD rcvd;
int ret = WSARecvFrom(fd, buf, msg->msg_iovlen, &rcvd, &dwFlags,
msg->msg_name, &fromlen, NULL, NULL);
free(buf);
if (ret == 0)
{
msg->msg_namelen = fromlen;
msg->msg_flags = dwFlags;
return rcvd;
}
switch (WSAGetLastError())
{
case WSAEWOULDBLOCK:
errno = EAGAIN;
break;
}
return -1;
}
#endif
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