+void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
+ size_t skip)
+{
+ int i;
+ size_t done;
+ void *iov_base;
+ uint64_t iov_len;
+
+ done = 0;
+ for (i = 0; (i < qiov->niov) && (done != count); i++) {
+ if (skip >= qiov->iov[i].iov_len) {
+ /* Skip the whole iov */
+ skip -= qiov->iov[i].iov_len;
+ continue;
+ } else {
+ /* Skip only part (or nothing) of the iov */
+ iov_base = (uint8_t*) qiov->iov[i].iov_base + skip;
+ iov_len = qiov->iov[i].iov_len - skip;
+ skip = 0;
+ }
+
+ if (done + iov_len > count) {
+ memset(iov_base, c, count - done);
+ break;
+ } else {
+ memset(iov_base, c, iov_len);
+ }
+ done += iov_len;
+ }
+}
+