| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include "cpc_sketch_c_adapter.h" |
| #include "allocator.h" |
| #include "postgres_h_substitute.h" |
| |
| #include <cpc_sketch.hpp> |
| #include <cpc_union.hpp> |
| |
| typedef datasketches::cpc_sketch_alloc<palloc_allocator<char>> cpc_sketch_pg; |
| typedef datasketches::cpc_union_alloc<palloc_allocator<char>> cpc_union_pg; |
| |
| void cpc_init() { |
| datasketches::cpc_init<palloc_allocator<char>>(); |
| } |
| |
| void cpc_cleanup() { |
| } |
| |
| void* cpc_sketch_new(unsigned lg_k) { |
| try { |
| return new (palloc(sizeof(cpc_sketch_pg))) cpc_sketch_pg(lg_k, datasketches::DEFAULT_SEED); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| void cpc_sketch_delete(void* sketchptr) { |
| try { |
| static_cast<cpc_sketch_pg*>(sketchptr)->~cpc_sketch_pg(); |
| pfree(sketchptr); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| } |
| |
| void cpc_sketch_update(void* sketchptr, const void* data, unsigned length) { |
| try { |
| static_cast<cpc_sketch_pg*>(sketchptr)->update(data, length); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| } |
| |
| double cpc_sketch_get_estimate(const void* sketchptr) { |
| try { |
| return static_cast<const cpc_sketch_pg*>(sketchptr)->get_estimate(); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| Datum* cpc_sketch_get_estimate_and_bounds(const void* sketchptr, unsigned num_std_devs) { |
| try { |
| Datum* est_and_bounds = (Datum*) palloc(sizeof(Datum) * 3); |
| est_and_bounds[0] = pg_float8_get_datum(static_cast<const cpc_sketch_pg*>(sketchptr)->get_estimate()); |
| est_and_bounds[1] = pg_float8_get_datum(static_cast<const cpc_sketch_pg*>(sketchptr)->get_lower_bound(num_std_devs)); |
| est_and_bounds[2] = pg_float8_get_datum(static_cast<const cpc_sketch_pg*>(sketchptr)->get_upper_bound(num_std_devs)); |
| return est_and_bounds; |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| char* cpc_sketch_to_string(const void* sketchptr) { |
| try { |
| auto str = static_cast<const cpc_sketch_pg*>(sketchptr)->to_string(); |
| const size_t len = str.length() + 1; |
| char* buffer = (char*) palloc(len); |
| strncpy(buffer, str.c_str(), len); |
| return buffer; |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| struct ptr_with_size cpc_sketch_serialize(const void* sketchptr, unsigned header_size) { |
| try { |
| ptr_with_size p; |
| auto bytes = new (palloc(sizeof(cpc_sketch_pg::vector_bytes))) cpc_sketch_pg::vector_bytes( |
| static_cast<const cpc_sketch_pg*>(sketchptr)->serialize(header_size) |
| ); |
| p.ptr = bytes->data(); |
| p.size = bytes->size(); |
| return p; |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| void* cpc_sketch_deserialize(const char* buffer, unsigned length) { |
| try { |
| return new (palloc(sizeof(cpc_sketch_pg))) cpc_sketch_pg(cpc_sketch_pg::deserialize(buffer, length, datasketches::DEFAULT_SEED)); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| void* cpc_union_new(unsigned lg_k) { |
| try { |
| return new (palloc(sizeof(cpc_union_pg))) cpc_union_pg(lg_k, datasketches::DEFAULT_SEED); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |
| |
| void cpc_union_delete(void* unionptr) { |
| try { |
| static_cast<cpc_union_pg*>(unionptr)->~cpc_union_pg(); |
| pfree(unionptr); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| } |
| |
| void cpc_union_update(void* unionptr, const void* sketchptr) { |
| try { |
| static_cast<cpc_union_pg*>(unionptr)->update(std::move(*static_cast<const cpc_sketch_pg*>(sketchptr))); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| } |
| |
| void* cpc_union_get_result(void* unionptr) { |
| try { |
| return new (palloc(sizeof(cpc_sketch_pg))) cpc_sketch_pg(static_cast<cpc_union_pg*>(unionptr)->get_result()); |
| } catch (std::exception& e) { |
| pg_error(e.what()); |
| } |
| pg_unreachable(); |
| } |