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openairinterface5g/common/utils/var_array.h
T
2023-01-21 12:14:18 +01:00

75 lines
2.3 KiB
C

/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file var_array.c
* \brief Very primitive variable length array ds. Here for compatibility
* reasons, should be replaced with a more capable data structure.
* @ingroup util
*/
#ifndef VAR_ARRAY_H_
#define VAR_ARRAY_H_
#include <stdlib.h>
#include "common/utils/assertions.h"
typedef struct {
size_t size;
size_t mallocedSize;
size_t atomSize;
size_t increment;
} varArray_t;
static inline varArray_t *initVarArray(size_t increment, size_t atomSize)
{
varArray_t *tmp = malloc(sizeof(*tmp) + increment * atomSize);
tmp->size = 0;
tmp->atomSize = atomSize;
tmp->mallocedSize = increment;
tmp->increment = increment;
return tmp;
}
static inline void *dataArray(varArray_t *input)
{
return input + 1;
}
static inline void appendVarArray(varArray_t **inputPtr, void *data)
{
varArray_t *input = *inputPtr;
if (input->size >= input->mallocedSize) {
input->mallocedSize += input->increment;
*inputPtr = realloc(input, sizeof(varArray_t) + input->mallocedSize * input->atomSize);
AssertFatal(*inputPtr, "no memory left");
input = *inputPtr;
}
memcpy((uint8_t *)(input + 1) + input->atomSize * input->size++, data, input->atomSize);
}
static inline void freeVarArray(varArray_t *input)
{
free(input);
}
#endif /* VAR_ARRAY_H_ */