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#ifndef HEADER_LHASH_H
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#define HEADER_LHASH_H
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#include "e_os2.h"
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#ifndef OPENSSL_NO_BIO
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#include "bio.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct lhash_node_st {
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void *data;
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struct lhash_node_st *next;
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#ifndef OPENSSL_NO_HASH_COMP
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unsigned long hash;
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#endif
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} LHASH_NODE;
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typedef int (*LHASH_COMP_FN_TYPE)(const void *, const void *);
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typedef unsigned long (*LHASH_HASH_FN_TYPE)(const void *);
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typedef void (*LHASH_DOALL_FN_TYPE)(void *);
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typedef void (*LHASH_DOALL_ARG_FN_TYPE)(void *, void *);
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/* Macros for declaring and implementing type-safe wrappers for LHASH callbacks.
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* This way, callbacks can be provided to LHASH structures without function
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* pointer casting and the macro-defined callbacks provide per-variable casting
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* before deferring to the underlying type-specific callbacks. NB: It is
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* possible to place a "static" in front of both the DECLARE and IMPLEMENT
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* macros if the functions are strictly internal. */
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/* First: "hash" functions */
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#define DECLARE_LHASH_HASH_FN(f_name, o_type) \
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unsigned long f_name##_LHASH_HASH(const void *);
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#define IMPLEMENT_LHASH_HASH_FN(f_name, o_type) \
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unsigned long f_name##_LHASH_HASH(const void *arg) \
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{ \
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o_type a = (o_type)arg; \
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return f_name(a); \
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}
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#define LHASH_HASH_FN(f_name) f_name##_LHASH_HASH
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/* Second: "compare" functions */
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#define DECLARE_LHASH_COMP_FN(f_name, o_type) \
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int f_name##_LHASH_COMP(const void *, const void *);
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#define IMPLEMENT_LHASH_COMP_FN(f_name, o_type) \
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int f_name##_LHASH_COMP(const void *arg1, const void *arg2) \
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{ \
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o_type a = (o_type)arg1; \
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o_type b = (o_type)arg2; \
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return f_name(a, b); \
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}
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#define LHASH_COMP_FN(f_name) f_name##_LHASH_COMP
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/* Third: "doall" functions */
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#define DECLARE_LHASH_DOALL_FN(f_name, o_type) \
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void f_name##_LHASH_DOALL(void *);
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#define IMPLEMENT_LHASH_DOALL_FN(f_name, o_type) \
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void f_name##_LHASH_DOALL(void *arg) \
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{ \
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o_type a = (o_type)arg; \
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f_name(a); \
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}
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#define LHASH_DOALL_FN(f_name) f_name##_LHASH_DOALL
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/* Fourth: "doall_arg" functions */
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#define DECLARE_LHASH_DOALL_ARG_FN(f_name, o_type, a_type) \
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void f_name##_LHASH_DOALL_ARG(void *, void *);
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#define IMPLEMENT_LHASH_DOALL_ARG_FN(f_name, o_type, a_type) \
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void f_name##_LHASH_DOALL_ARG(void *arg1, void *arg2) \
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{ \
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o_type a = (o_type)arg1; \
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a_type b = (a_type)arg2; \
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f_name(a, b); \
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}
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#define LHASH_DOALL_ARG_FN(f_name) f_name##_LHASH_DOALL_ARG
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typedef struct lhash_st {
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LHASH_NODE **b;
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LHASH_COMP_FN_TYPE comp;
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LHASH_HASH_FN_TYPE hash;
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unsigned int num_nodes;
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unsigned int num_alloc_nodes;
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unsigned int p;
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unsigned int pmax;
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unsigned long up_load; /* load times 256 */
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unsigned long down_load; /* load times 256 */
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unsigned long num_items;
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unsigned long num_expands;
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unsigned long num_expand_reallocs;
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unsigned long num_contracts;
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unsigned long num_contract_reallocs;
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unsigned long num_hash_calls;
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unsigned long num_comp_calls;
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unsigned long num_insert;
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unsigned long num_replace;
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unsigned long num_delete;
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unsigned long num_no_delete;
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unsigned long num_retrieve;
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unsigned long num_retrieve_miss;
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unsigned long num_hash_comps;
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int error;
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} LHASH;
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#define LH_LOAD_MULT 256
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/* Indicates a malloc() error in the last call, this is only bad
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* in lh_insert(). */
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#define lh_error(lh) ((lh)->error)
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LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c);
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void lh_free(LHASH *lh);
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void *lh_insert(LHASH *lh, void *data);
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void *lh_delete(LHASH *lh, const void *data);
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void *lh_retrieve(LHASH *lh, const void *data);
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void lh_doall(LHASH *lh, LHASH_DOALL_FN_TYPE func);
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void lh_doall_arg(LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg);
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unsigned long lh_strhash(const char *c);
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unsigned long lh_num_items(const LHASH *lh);
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#ifdef OPENSSL_NO_FP_API
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void lh_stats(const LHASH *lh, FILE *out);
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void lh_node_stats(const LHASH *lh, FILE *out);
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void lh_node_usage_stats(const LHASH *lh, FILE *out);
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#endif
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#ifndef OPENSSL_NO_BIO
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void lh_stats_bio(const LHASH *lh, BIO *out);
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void lh_node_stats_bio(const LHASH *lh, BIO *out);
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void lh_node_usage_stats_bio(const LHASH *lh, BIO *out);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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