60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
#ifndef ENFILADE_H
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#define ENFILADE_H
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#define ENSIFER_VERSION "0.1.20"
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#include <stddef.h>
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#include <stdint.h>
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typedef struct enfilade enfilade_t;
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typedef enum {
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ENF_OK = 0,
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ENF_ERR_NULL,
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ENF_ERR_ADDR,
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ENF_ERR_NOT_FOUND,
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ENF_ERR_NOMEM
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} enf_error_t;
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typedef struct {
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enf_error_t code;
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const char *msg;
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} enf_result_t;
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enfilade_t *create_enfilade(void);
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void destroy_enfilade(enfilade_t *enf);
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/* Store datum at a dotted tumbler address. Missing intermediate children are
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* created automatically. Replacing the final datum is allowed. */
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enf_result_t put_enfilade(enfilade_t *enf, const char *tumbler, void *datum);
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/* Remove only the datum stored at the exact final key. A child subtree at the
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* same key is retained. Empty intermediate child nodes are pruned. */
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enf_result_t remove_enfilade(enfilade_t *enf, const char *tumbler);
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/* Exact terminal value, without descendant traversal. */
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void *getXtumbler_enfilade(enfilade_t *enf, const char *tumbler);
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/* Resolve a tumbler using the Enfilade.py getByTumbler/get semantics.
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* Returns a newly allocated array of datum pointers. Caller frees the array;
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* the datum pointers remain owned by the application/S7. */
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enf_result_t getXtumbler_values_enfilade(enfilade_t *enf,
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const char *tumbler,
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void ***items,
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size_t *count);
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/* Flatten all values in numeric key order for the inclusive range. A negative
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* end means "everything", matching the Python default end=-1. */
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enf_result_t getXrange_values_enfilade(enfilade_t *enf,
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int64_t start,
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int64_t end,
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void ***items,
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size_t *count);
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typedef void (*enfilade_datum_visitor)(void *datum, void *context);
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void enfilade_visit_data(enfilade_t *enf,
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enfilade_datum_visitor visitor,
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void *context);
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#endif /* ENFILADE_H */
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