52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* $Id: asyncsendto.h,v 1.3 2017/11/02 15:48:29 nanard Exp $ */
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/* MiniUPnP project
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* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
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* (c) 2006-2017 Thomas Bernard
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* This software is subject to the conditions detailed
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* in the LICENCE file provided within the distribution */
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#ifndef ASYNCSENDTO_H_INCLUDED
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#define ASYNCSENDTO_H_INCLUDED
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/* for fd_set */
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#include <sys/select.h>
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/* sendto_schedule() : see sendto(2)
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* schedule sendto() call after delay (milliseconds) */
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ssize_t
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sendto_schedule2(int sockfd, const void *buf, size_t len, int flags,
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const struct sockaddr *dest_addr, socklen_t addrlen,
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const struct sockaddr_in6 *src_addr,
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unsigned int delay);
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#define sendto_schedule(sockfd, buf, len, flags, dest_addr, addrlen, delay) \
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sendto_schedule2(sockfd, buf, len, flags, dest_addr, addrlen, NULL, delay)
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/* sendto_schedule() : see sendto(2)
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* try sendto() at once and schedule if EINTR/EAGAIN/EWOULDBLOCK */
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ssize_t
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sendto_or_schedule(int sockfd, const void *buf, size_t len, int flags,
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const struct sockaddr *dest_addr, socklen_t addrlen);
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/* same as sendto_schedule() except it will try to set source address
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* (for IPV6 only) */
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ssize_t
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sendto_or_schedule2(int sockfd, const void *buf, size_t len, int flags,
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const struct sockaddr *dest_addr, socklen_t addrlen,
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const struct sockaddr_in6 *src_addr);
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/* get_next_scheduled_send()
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* return number of scheduled sendto
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* set next_send to timestamp to send next packet */
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int get_next_scheduled_send(struct timeval * next_send);
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/* execute sendto() for needed packets */
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int try_sendto(fd_set * writefds);
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/* set writefds before select() */
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int get_sendto_fds(fd_set * writefds, int * max_fd, const struct timeval * now);
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/* empty the list */
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void finalize_sendto(void);
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#endif
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