release/src/router/miniupnpd/asyncsendto.h

   1 /* $Id: asyncsendto.h,v 1.2 2014/05/19 14:21:10 nanard Exp $ */
   2 /* MiniUPnP project
   3  * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
   4  * (c) 2006-2014 Thomas Bernard
   5  * This software is subject to the conditions detailed
   6  * in the LICENCE file provided within the distribution */
   7
   8 #ifndef ASYNCSENDTO_H_INCLUDED
   9 #define ASYNCSENDTO_H_INCLUDED
  10
  11 /* sendto_schedule() : see sendto(2)
  12  * schedule sendto() call after delay (milliseconds) */
  13 ssize_t
  14 sendto_schedule2(int sockfd, const void *buf, size_t len, int flags,
  15                  const struct sockaddr *dest_addr, socklen_t addrlen,
  16                  const struct sockaddr_in6 *src_addr,
  17                  unsigned int delay);
  18
  19 #define sendto_schedule(sockfd, buf, len, flags, dest_addr, addrlen, delay) \
  20         sendto_schedule2(sockfd, buf, len, flags, dest_addr, addrlen, NULL, delay)
  21
  22 /* sendto_schedule() : see sendto(2)
  23  * try sendto() at once and schedule if EINTR/EAGAIN/EWOULDBLOCK */
  24 ssize_t
  25 sendto_or_schedule(int sockfd, const void *buf, size_t len, int flags,
  26                    const struct sockaddr *dest_addr, socklen_t addrlen);
  27
  28 /* same as sendto_schedule() except it will try to set source address
  29  * (for IPV6 only) */
  30 ssize_t
  31 sendto_or_schedule2(int sockfd, const void *buf, size_t len, int flags,
  32                    const struct sockaddr *dest_addr, socklen_t addrlen,
  33                    const struct sockaddr_in6 *src_addr);
  34
  35 /* get_next_scheduled_send()
  36  * return number of scheduled sendto
  37  * set next_send to timestamp to send next packet */
  38 int get_next_scheduled_send(struct timeval * next_send);
  39
  40 /* execute sendto() for needed packets */
  41 int try_sendto(fd_set * writefds);
  42
  43 /* set writefds before select() */
  44 int get_sendto_fds(fd_set * writefds, int * max_fd, const struct timeval * now);
  45
  46 /* empty the list */
  47 void finalize_sendto(void);
  48
  49 #endif