/*
* vr_uvhost_del_fds_by_arg - deletes all FDs from the read/write lists matching
* the given argument (pointer to a client). All the FDs found will be closed.
*
* Returns 0 on success, -1 otherwise.
*/
int
vr_uvhost_del_fds_by_arg(void *arg)
{
int i;
for (i = 0; i < MAX_UVHOST_FDS; i++) {
if (uvh_rfds[i].uvh_fd > 0 && uvh_rfds[i].uvh_fd_arg == arg)
vr_uvhost_del_fd(uvh_rfds[i].uvh_fd, UVH_FD_READ);
if (uvh_wfds[i].uvh_fd > 0 && uvh_wfds[i].uvh_fd_arg == arg)
vr_uvhost_del_fd(uvh_wfds[i].uvh_fd, UVH_FD_WRITE);
}
return 0;
}
/*
* vr_uvh_nl_vif_del_handler - handle a message from the netlink thread
* to delete a vif.
*
* Returns 0 on success, -1 otherwise.
*/
int
vr_uvh_nl_vif_del_handler(vrnu_vif_del_t *msg)
{
unsigned int cidx = msg->vrnu_vif_idx;
vr_uvh_client_t *vru_cl;
if (cidx >= VR_UVH_MAX_CLIENTS) {
vr_uvhost_log("Couldn't delete vhost client due to bad index %d\n",
cidx);
return -1;
}
vr_dpdk_virtio_set_vif_client(cidx, NULL);
vru_cl = vr_uvhost_get_client(cidx);
if (vru_cl == NULL) {
vr_uvhost_log("Couldn't find vhost client %d for deletion\n",
cidx);
return -1;
}
/*
* Unmmaps Qemu's FD
*/
vr_dpdk_virtio_uvh_vif_munmap(&vr_dpdk_virtio_uvh_vif_mmap[cidx]);
if (vru_cl->vruc_fd != -1) {
vr_uvhost_del_fd(vru_cl->vruc_fd, UVH_FD_READ);
}
vr_uvhost_del_client(vru_cl);
return 0;
}
/*
* vr_uvh_call_fd_handlers - call the handler for each FD that is set upon
* return from poll().
*
* Returns nothing.
*/
void
vr_uvh_call_fd_handlers(struct pollfd *fds, nfds_t nfds)
{
unsigned int i;
int ret;
for (i = 0; i < nfds; i++) {
if (fds[i].fd >= 0) {
if (fds[i].revents & POLLIN) {
ret = vr_uvh_call_fd_handlers_internal(uvh_rfds, fds[i].fd);
if (ret) {
vr_uvhost_del_fd(fds[i].fd, UVH_FD_READ);
}
}
}
}
return;
}
