diff options
Diffstat (limited to 'tests/vhost-user-bridge.c')
| -rw-r--r-- | tests/vhost-user-bridge.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/tests/vhost-user-bridge.c b/tests/vhost-user-bridge.c index 8618c20d53..1e5b5ca3da 100644 --- a/tests/vhost-user-bridge.c +++ b/tests/vhost-user-bridge.c @@ -220,12 +220,18 @@ vubr_handle_tx(VuDev *dev, int qidx) free(elem); } + +/* this function reverse the effect of iov_discard_front() it must be + * called with 'front' being the original struct iovec and 'bytes' + * being the number of bytes you shaved off + */ static void iov_restore_front(struct iovec *front, struct iovec *iov, size_t bytes) { struct iovec *cur; - for (cur = front; front != iov; cur++) { + for (cur = front; cur != iov; cur++) { + assert(bytes >= cur->iov_len); bytes -= cur->iov_len; } @@ -302,7 +308,8 @@ vubr_backend_recv_cb(int sock, void *ctx) } iov_from_buf(sg, elem->in_num, 0, &hdr, sizeof hdr); total += hdrlen; - assert(iov_discard_front(&sg, &num, hdrlen) == hdrlen); + ret = iov_discard_front(&sg, &num, hdrlen); + assert(ret == hdrlen); } struct msghdr msg = { |