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/*
* 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.
*/
#ifndef FREQUENT_STRINGS_SKETCH_C_ADAPTER_H
#define FREQUENT_STRINGS_SKETCH_C_ADAPTER_H
#ifdef __cplusplus
extern "C" {
#endif
#include "ptr_with_size.h"
void* frequent_strings_sketch_new(unsigned lg_k);
void frequent_strings_sketch_delete(void* sketchptr);
void frequent_strings_sketch_update(void* sketchptr, const char* str, unsigned length, unsigned long long weight);
void frequent_strings_sketch_merge(void* sketchptr1, const void* sketchptr2);
char* frequent_strings_sketch_to_string(const void* sketchptr, bool print_items);
struct ptr_with_size frequent_strings_sketch_serialize(const void* sketchptr, unsigned header_size);
void* frequent_strings_sketch_deserialize(const char* buffer, unsigned length);
unsigned frequent_strings_sketch_get_serialized_size_bytes(const void* sketchptr);
struct frequent_strings_sketch_result_row {
char* str;
unsigned long long estimate;
unsigned long long lower_bound;
unsigned long long upper_bound;
};
struct frequent_strings_sketch_result {
struct frequent_strings_sketch_result_row* rows;
unsigned num;
};
struct frequent_strings_sketch_result* frequent_strings_sketch_get_frequent_items(void* sketchptr, bool no_false_positives, unsigned long long threshold);
#ifdef __cplusplus
}
#endif
#endif