int gateway_create_and_write_obj(struct request *req)
{
uint64_t oid = req->rq.obj.oid;
if (oid_is_readonly(oid))
return SD_RES_READONLY;
if (!bypass_object_cache(req))
return object_cache_handle_request(req);
return gateway_forward_request(req);
}
int default_get_hash(uint64_t oid, uint32_t epoch, uint8_t *sha1)
{
int ret;
void *buf;
struct siocb iocb = {};
uint32_t length;
bool is_readonly_obj = oid_is_readonly(oid);
char path[PATH_MAX];
ret = get_object_path(oid, epoch, path, sizeof(path));
if (ret != SD_RES_SUCCESS)
return ret;
if (is_readonly_obj) {
if (get_object_sha1(path, sha1) == 0) {
sd_debug("use cached sha1 digest %s",
sha1_to_hex(sha1));
return SD_RES_SUCCESS;
}
}
length = get_store_objsize(oid);
buf = valloc(length);
if (buf == NULL)
return SD_RES_NO_MEM;
iocb.epoch = epoch;
iocb.buf = buf;
iocb.length = length;
ret = default_read_from_path(oid, path, &iocb);
if (ret != SD_RES_SUCCESS) {
free(buf);
return ret;
}
get_buffer_sha1(buf, length, sha1);
free(buf);
sd_debug("the message digest of %"PRIx64" at epoch %d is %s", oid,
epoch, sha1_to_hex(sha1));
if (is_readonly_obj)
set_object_sha1(path, sha1);
return ret;
}
