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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
// ================================================================
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// Array-only (open addressing) string-list-to-void-star linked hash map with
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// linear probing for collisions.
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//
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// John Kerl 2014-12-22
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//
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// Notes:
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// * null key is not supported.
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// * null value is supported.
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//
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// See also:
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// * http://en.wikipedia.org/wiki/Hash_table
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// * http://docs.oracle.com/javase/6/docs/api/java/util/Map.html
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// ================================================================
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#ifndef LHMSLV_H
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#define LHMSLV_H
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#include "containers/slls.h"
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// ----------------------------------------------------------------
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typedef struct _lhmslve_t {
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int ideal_index;
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slls_t* key;
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void* pvvalue;
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char free_flags;
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struct _lhmslve_t *pprev;
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struct _lhmslve_t *pnext;
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} lhmslve_t;
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typedef unsigned char lhmslve_state_t;
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// ----------------------------------------------------------------
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typedef struct _lhmslv_t {
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int num_occupied;
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int num_freed;
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int array_length;
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lhmslve_t* entries;
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lhmslve_state_t* states;
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lhmslve_t* phead;
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lhmslve_t* ptail;
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} lhmslv_t;
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lhmslv_t* lhmslv_alloc();
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void lhmslv_free(lhmslv_t* pmap);
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void* lhmslv_put(lhmslv_t* pmap, slls_t* key, void* pvvalue, char free_flags);
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void* lhmslv_get(lhmslv_t* pmap, slls_t* key);
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int lhmslv_has_key(lhmslv_t* pmap, slls_t* key);
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int lhmslv_size(lhmslv_t* pmap);
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// Unit-test hook
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int lhmslv_check_counts(lhmslv_t* pmap);
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#endif // LHMSLV_H
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