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// Copyright (C) 2026 ren-yamanashi
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is designed to work with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation. The authors of this program hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have either included with
// the program or referenced in the documentation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, see <https://www.gnu.org/licenses/>.
// Secondary-engine offload, clone, mv-key and partitioning overrides
// (handler.h #154-#158)
#include "binding.hpp"
#include "rust_callbacks.hpp"
#include "safe_name.hpp"
// A null reason / name falls through to the base: FfiPtr::bytes_to_str requires
// a non-null pointer even at len 0, so null must never reach the Rust side.
// shim::safe_name_len bounds the scan if the null-termination contract breaks.
void RustHandlerBase::set_external_table_offload_error(const char *reason) {
if (rust_ctx_ && reason) {
rust__handler__set_external_table_offload_error(
rust_ctx_, reinterpret_cast<const uint8_t *>(reason),
shim::safe_name_len(reason));
return;
}
handler::set_external_table_offload_error(reason);
}
void RustHandlerBase::external_table_offload_error() const {
if (rust_ctx_) {
rust__handler__external_table_offload_error(rust_ctx_);
return;
}
handler::external_table_offload_error();
}
handler *RustHandlerBase::clone(const char *name, MEM_ROOT *mem_root) {
if (rust_ctx_ && name) {
handler *cloned = static_cast<handler *>(rust__handler__clone(
rust_ctx_, reinterpret_cast<const uint8_t *>(name),
shim::safe_name_len(name), static_cast<void *>(mem_root)));
if (cloned) return cloned;
}
return handler::clone(name, mem_root);
}
void RustHandlerBase::mv_key_capacity(uint *num_keys,
size_t *keys_length) const {
if (rust_ctx_) {
uint32_t n = 0;
uint64_t b = 0;
if (rust__handler__mv_key_capacity(rust_ctx_, &n, &b)) {
*num_keys = n;
*keys_length = b;
return;
}
}
// handler::mv_key_capacity is private (NVI); reproduce its trivial base.
*num_keys = 0;
*keys_length = 0;
}
Partition_handler *RustHandlerBase::get_partition_handler() {
if (rust_ctx_) {
Partition_handler *ph = static_cast<Partition_handler *>(
rust__handler__get_partition_handler(rust_ctx_));
if (ph) return ph;
}
return handler::get_partition_handler();
}