A C library for asynchronous DNS requests (grpc依赖)
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#ifndef HEADER_CARES_WRITEV_H
#define HEADER_CARES_WRITEV_H
/* $Id$ */
/* Copyright 1998 by the Massachusetts Institute of Technology.
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in
* advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is"
* without express or implied warranty.
*/
#include "ares_setup.h"
#include "ares.h"
#ifndef HAVE_WRITEV
/* Structure for scatter/gather I/O. */
struct iovec
{
void *iov_base; /* Pointer to data. */
size_t iov_len; /* Length of data. */
};
extern ssize_t ares_writev(ares_socket_t s, const struct iovec *iov, int iovcnt);
#endif
#endif /* HEADER_CARES_WRITEV_H */