libworker_attach_mesh
if((r=libworker_attach_mesh(ctx, q, async_id)) != 0)
int libworker_attach_mesh(struct ub_ctx* ctx, struct ctx_query* q,
if((r=libworker_attach_mesh(ctx, q, async_id)) != 0)
int libworker_attach_mesh(struct ub_ctx* ctx, struct ctx_query* q,