writev on windows

Question

Does Windows offer anything similar to writev in a non Cygwin environment?

Ideally, an answer would have a working example for windows, something along the lines of:

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/uio.h>

int main() {
  struct iovec iov[2];
  char blah[][20] = { "mickey", " mouse" };
  int fd = open ("/tmp/mice.txt", O_WRONLY | O_CREAT);
  iov[0].iov_base=blah[0];
  iov[1].iov_base=blah[1];
  iov[0].iov_len=iov[1].iov_len=6;
  writev(fd, iov, 2 );
  close(fd);
}

The answer should be how to approach the problem using system calls. Specifically I am looking to avoid copying the individual buffers into a single larger buffer to perform the write. Also the resultant write should be a single large write request instead of something like fwrite which performs buffered IO.

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Edit: 13 August 12

The link to Scatter Gather I/O seems to pertain primarily to TCP/IP networking (err winsock really). Another suggestion, which is writefilegather is a solution for writing files in a very specific format. I.e. whereas writev writes using iov containers (arbitrary blocks of memory), writefilegather uses fixed buffers aligned to page table size.

Answer 1

WSASend function can send an array of WSABUF structures