blob: df1ae3f834a853b3c45d2557dfe03fd0c2d106c6 [file] [log] [blame]
/*
* 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(*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();
}