iov.h

   1 /*
   2  * Helpers for getting linearized buffers from iov / filling buffers into iovs
   3  *
   4  * Copyright (C) 2010 Red Hat, Inc.
   5  *
   6  * Author(s):
   7  *  Amit Shah <amit.shah@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  */
  12
  13 #include "qemu-common.h"
  14
  15 size_t iov_from_buf(struct iovec *iov, unsigned int iov_cnt,
  16                     const void *buf, size_t iov_off, size_t size);
  17 size_t iov_to_buf(const struct iovec *iov, const unsigned int iov_cnt,
  18                   void *buf, size_t iov_off, size_t size);
  19 size_t iov_size(const struct iovec *iov, const unsigned int iov_cnt);
  20 size_t iov_clear(const struct iovec *iov, const unsigned int iov_cnt,
  21                  size_t iov_off, size_t size);
  22 void iov_hexdump(const struct iovec *iov, const unsigned int iov_cnt,
  23                  FILE *fp, const char *prefix, size_t limit);