static int init_vdi_copy_number(uint64_t oid)
{
char path[PATH_MAX];
int fd, flags = get_open_flags(oid, false), ret;
struct sheepdog_inode *inode = xzalloc(sizeof(*inode));
snprintf(path, sizeof(path), "%s%016" PRIx64, obj_path, oid);
fd = open(path, flags);
if (fd < 0) {
eprintf("failed to open %s, %m\n", path);
ret = SD_RES_EIO;
goto out;
}
ret = xpread(fd, inode, SD_INODE_HEADER_SIZE, 0);
if (ret != SD_INODE_HEADER_SIZE) {
eprintf("failed to read inode header, path=%s, %m\n", path);
ret = SD_RES_EIO;
goto out;
}
add_vdi_copy_number(oid_to_vid(oid), inode->nr_copies);
ret = SD_RES_SUCCESS;
out:
free(inode);
return SD_RES_SUCCESS;
}
static int get_vdis_from(struct sd_node *node)
{
struct sd_req hdr;
struct sd_rsp *rsp = (struct sd_rsp *)&hdr;
struct vdi_copy *vc = NULL;
int i, ret = SD_RES_SUCCESS;
unsigned int rlen;
int count;
if (node_is_local(node))
goto out;
rlen = SD_DATA_OBJ_SIZE; /* FIXME */
vc = zalloc(rlen);
if (!vc) {
sd_printf(SDOG_ERR, "unable to allocate memory\n");
ret = SD_RES_NO_MEM;
goto out;
}
sd_init_req(&hdr, SD_OP_GET_VDI_COPIES);
hdr.data_length = rlen;
ret = sheep_exec_req(&node->nid, &hdr, (char *)vc);
if (ret != SD_RES_SUCCESS)
goto out;
count = rsp->data_length / sizeof(*vc);
for (i = 0; i < count; i++) {
set_bit(vc[i].vid, sys->vdi_inuse);
add_vdi_copy_number(vc[i].vid, vc[i].nr_copies);
}
out:
free(vc);
return ret;
}