74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
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/****************************************************************************
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* Array indexing functions *
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****************************************************************************/
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/**
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* @file array_indexer.c
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* @author Celine Mercier
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* @date October 5th 2017
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* @brief Functions handling the indexing and retrieval of arrays of any type.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <math.h>
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#include "obiblob.h"
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#include "obiblob_indexer.h"
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#include "obidebug.h"
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#include "obitypes.h"
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#define DEBUG_LEVEL 0 // TODO has to be defined somewhere else (cython compil flag?)
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index_t obi_index_array(Obi_indexer_p indexer, const void* value, uint8_t elt_size, int value_length)
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{
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Obi_blob_p value_b;
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index_t idx;
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int32_t length_bytes;
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// fprintf(stderr, "\nelt size in C: %u", elt_size);
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// for (int i=0; i<value_length; i++)
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// fprintf(stderr, "\nvalue %d", ((obibool_t*)value)[i]);
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length_bytes = value_length * elt_size;
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// Encode value
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value_b = obi_blob((byte_t*)value, elt_size, length_bytes, length_bytes);
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if (value_b == NULL)
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return -1;
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// for (int i=0; i<value_length; i++)
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// fprintf(stderr, "\nin blob: value %d", ((obibool_t*)(value_b->value))[i]);
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// Add in the indexer
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idx = obi_indexer_add(indexer, value_b);
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free(value_b);
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return idx;
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}
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const void* obi_retrieve_array(Obi_indexer_p indexer, index_t idx, int* value_length_p)
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{
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Obi_blob_p value_b;
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// Get encoded value
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value_b = obi_indexer_get(indexer, idx);
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// Store array length
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*value_length_p = (value_b->length_decoded_value) / (value_b->element_size);
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// for (int i=0; i<*value_length_p; i++)
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// fprintf(stderr, "\nvalue %d", ((obibool_t*)(value_b->value))[i]);
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// Return pointer on mapped array
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return ((void*) (value_b->value));
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}
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