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authorPaolo Bonzini <pbonzini@redhat.com>2012-10-24 14:58:39 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2012-10-30 09:18:42 +0100
commit0191253ceaf442e595cdd12ce80233b9de28cd13 (patch)
treef1691b2ffddfe4fbeccc29a335b4f1ebc5cf6fb1 /cutils.c
parent8473f377393219390ea6f2d8d450a2b054bb823e (diff)
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janitor: move iovector functions out of cutils.c
This removes the dependency of cutils.c on iov.c, and lets us remove iov.o from several builds. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'cutils.c')
-rw-r--r--cutils.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/cutils.c b/cutils.c
index 8edd8fa..6f9f799 100644
--- a/cutils.c
+++ b/cutils.c
@@ -142,109 +142,6 @@ int qemu_fdatasync(int fd)
#endif
}
-/* io vectors */
-
-void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint)
-{
- qiov->iov = g_malloc(alloc_hint * sizeof(struct iovec));
- qiov->niov = 0;
- qiov->nalloc = alloc_hint;
- qiov->size = 0;
-}
-
-void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov)
-{
- int i;
-
- qiov->iov = iov;
- qiov->niov = niov;
- qiov->nalloc = -1;
- qiov->size = 0;
- for (i = 0; i < niov; i++)
- qiov->size += iov[i].iov_len;
-}
-
-void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len)
-{
- assert(qiov->nalloc != -1);
-
- if (qiov->niov == qiov->nalloc) {
- qiov->nalloc = 2 * qiov->nalloc + 1;
- qiov->iov = g_realloc(qiov->iov, qiov->nalloc * sizeof(struct iovec));
- }
- qiov->iov[qiov->niov].iov_base = base;
- qiov->iov[qiov->niov].iov_len = len;
- qiov->size += len;
- ++qiov->niov;
-}
-
-/*
- * Concatenates (partial) iovecs from src to the end of dst.
- * It starts copying after skipping `soffset' bytes at the
- * beginning of src and adds individual vectors from src to
- * dst copies up to `sbytes' bytes total, or up to the end
- * of src if it comes first. This way, it is okay to specify
- * very large value for `sbytes' to indicate "up to the end
- * of src".
- * Only vector pointers are processed, not the actual data buffers.
- */
-void qemu_iovec_concat(QEMUIOVector *dst,
- QEMUIOVector *src, size_t soffset, size_t sbytes)
-{
- int i;
- size_t done;
- struct iovec *siov = src->iov;
- assert(dst->nalloc != -1);
- assert(src->size >= soffset);
- for (i = 0, done = 0; done < sbytes && i < src->niov; i++) {
- if (soffset < siov[i].iov_len) {
- size_t len = MIN(siov[i].iov_len - soffset, sbytes - done);
- qemu_iovec_add(dst, siov[i].iov_base + soffset, len);
- done += len;
- soffset = 0;
- } else {
- soffset -= siov[i].iov_len;
- }
- }
- /* return done; */
-}
-
-void qemu_iovec_destroy(QEMUIOVector *qiov)
-{
- assert(qiov->nalloc != -1);
-
- qemu_iovec_reset(qiov);
- g_free(qiov->iov);
- qiov->nalloc = 0;
- qiov->iov = NULL;
-}
-
-void qemu_iovec_reset(QEMUIOVector *qiov)
-{
- assert(qiov->nalloc != -1);
-
- qiov->niov = 0;
- qiov->size = 0;
-}
-
-size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
- void *buf, size_t bytes)
-{
- return iov_to_buf(qiov->iov, qiov->niov, offset, buf, bytes);
-}
-
-size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
- const void *buf, size_t bytes)
-{
- return iov_from_buf(qiov->iov, qiov->niov, offset, buf, bytes);
-}
-
-size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
- int fillc, size_t bytes)
-{
- return iov_memset(qiov->iov, qiov->niov, offset, fillc, bytes);
-}
-
/*
* Checks if a buffer is all zeroes
*