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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2022 The Fluent Bit Authors
*
* Licensed 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 <fluent-bit/flb_info.h>
#include <fluent-bit/stream_processor/flb_sp.h>
int flb_sp_groupby_compare(const void *lhs, const void *rhs)
{
int i;
int strcmp_result;
struct aggregate_node *left = (struct aggregate_node *) lhs;
struct aggregate_node *right = (struct aggregate_node *) rhs;
struct aggregate_num *lval;
struct aggregate_num *rval;
for (i = 0; i < left->groupby_keys; i++) {
lval = &left->groupby_nums[i];
rval = &right->groupby_nums[i];
/* Convert integer to double if a float value appears on one side */
if (lval->type == FLB_SP_NUM_I64 && rval->type == FLB_SP_NUM_F64) {
lval->type = FLB_SP_NUM_F64;
lval->f64 = (double) lval->i64;
}
else if (lval->type == FLB_SP_NUM_F64 && rval->type == FLB_SP_NUM_I64) {
rval->type = FLB_SP_NUM_F64;
rval->f64 = (double) rval->i64;
}
/* Comparison */
if (lval->type == FLB_SP_BOOLEAN && rval->type == FLB_SP_BOOLEAN) {
if (lval->boolean != rval->boolean) {
return 1;
}
}
else if (lval->type == FLB_SP_NUM_I64 && rval->type == FLB_SP_NUM_I64) {
if (lval->i64 > rval->i64) {
return 1;
}
if (lval->i64 < rval->i64) {
return -1;
}
}
else if (lval->type == FLB_SP_NUM_F64 && rval->type == FLB_SP_NUM_F64) {
if (lval->f64 > rval->f64) {
return 1;
}
if (lval->f64 < rval->f64) {
return -1;
}
}
else if (lval->type == FLB_SP_STRING && rval->type == FLB_SP_STRING) {
strcmp_result = strcmp((const char *) lval->string, (const char *) rval->string);
if (strcmp_result != 0) {
return strcmp_result;
}
}
else { /* Sides have different types */
return -1;
}
}
return 0;
}
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