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242 lines
9.1 KiB
C
242 lines
9.1 KiB
C
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/*
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* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* Header for dynamic hash table routines Author - Eric Young
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*/
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#ifndef HEADER_LHASH_H
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# define HEADER_LHASH_H
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# include <openssl/e_os2.h>
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# include <openssl/bio.h>
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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 OPENSSL_LH_NODE;
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typedef int (*OPENSSL_LH_COMPFUNC) (const void *, const void *);
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typedef unsigned long (*OPENSSL_LH_HASHFUNC) (const void *);
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typedef void (*OPENSSL_LH_DOALL_FUNC) (void *);
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typedef void (*OPENSSL_LH_DOALL_FUNCARG) (void *, void *);
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typedef struct lhash_st OPENSSL_LHASH;
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/*
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* Macros for declaring and implementing type-safe wrappers for LHASH
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* callbacks. This way, callbacks can be provided to LHASH structures without
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* function pointer casting and the macro-defined callbacks provide
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* per-variable casting before deferring to the underlying type-specific
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* callbacks. NB: It is possible to place a "static" in front of both the
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* DECLARE and IMPLEMENT macros if the functions are strictly internal.
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*/
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/* First: "hash" functions */
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# define DECLARE_LHASH_HASH_FN(name, o_type) \
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unsigned long name##_LHASH_HASH(const void *);
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# define IMPLEMENT_LHASH_HASH_FN(name, o_type) \
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unsigned long name##_LHASH_HASH(const void *arg) { \
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const o_type *a = arg; \
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return name##_hash(a); }
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# define LHASH_HASH_FN(name) name##_LHASH_HASH
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/* Second: "compare" functions */
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# define DECLARE_LHASH_COMP_FN(name, o_type) \
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int name##_LHASH_COMP(const void *, const void *);
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# define IMPLEMENT_LHASH_COMP_FN(name, o_type) \
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int name##_LHASH_COMP(const void *arg1, const void *arg2) { \
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const o_type *a = arg1; \
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const o_type *b = arg2; \
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return name##_cmp(a,b); }
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# define LHASH_COMP_FN(name) name##_LHASH_COMP
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/* Fourth: "doall_arg" functions */
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# define DECLARE_LHASH_DOALL_ARG_FN(name, o_type, a_type) \
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void name##_LHASH_DOALL_ARG(void *, void *);
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# define IMPLEMENT_LHASH_DOALL_ARG_FN(name, o_type, a_type) \
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void name##_LHASH_DOALL_ARG(void *arg1, void *arg2) { \
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o_type *a = arg1; \
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a_type *b = arg2; \
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name##_doall_arg(a, b); }
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# define LHASH_DOALL_ARG_FN(name) name##_LHASH_DOALL_ARG
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# define LH_LOAD_MULT 256
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int OPENSSL_LH_error(OPENSSL_LHASH *lh);
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OPENSSL_LHASH *OPENSSL_LH_new(OPENSSL_LH_HASHFUNC h, OPENSSL_LH_COMPFUNC c);
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void OPENSSL_LH_free(OPENSSL_LHASH *lh);
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void *OPENSSL_LH_insert(OPENSSL_LHASH *lh, void *data);
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void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data);
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void *OPENSSL_LH_retrieve(OPENSSL_LHASH *lh, const void *data);
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void OPENSSL_LH_doall(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNC func);
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void OPENSSL_LH_doall_arg(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG func, void *arg);
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unsigned long OPENSSL_LH_strhash(const char *c);
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unsigned long OPENSSL_LH_num_items(const OPENSSL_LHASH *lh);
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unsigned long OPENSSL_LH_get_down_load(const OPENSSL_LHASH *lh);
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void OPENSSL_LH_set_down_load(OPENSSL_LHASH *lh, unsigned long down_load);
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# ifndef OPENSSL_NO_STDIO
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void OPENSSL_LH_stats(const OPENSSL_LHASH *lh, FILE *fp);
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void OPENSSL_LH_node_stats(const OPENSSL_LHASH *lh, FILE *fp);
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void OPENSSL_LH_node_usage_stats(const OPENSSL_LHASH *lh, FILE *fp);
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# endif
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void OPENSSL_LH_stats_bio(const OPENSSL_LHASH *lh, BIO *out);
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void OPENSSL_LH_node_stats_bio(const OPENSSL_LHASH *lh, BIO *out);
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void OPENSSL_LH_node_usage_stats_bio(const OPENSSL_LHASH *lh, BIO *out);
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# if OPENSSL_API_COMPAT < 0x10100000L
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# define _LHASH OPENSSL_LHASH
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# define LHASH_NODE OPENSSL_LH_NODE
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# define lh_error OPENSSL_LH_error
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# define lh_new OPENSSL_LH_new
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# define lh_free OPENSSL_LH_free
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# define lh_insert OPENSSL_LH_insert
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# define lh_delete OPENSSL_LH_delete
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# define lh_retrieve OPENSSL_LH_retrieve
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# define lh_doall OPENSSL_LH_doall
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# define lh_doall_arg OPENSSL_LH_doall_arg
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# define lh_strhash OPENSSL_LH_strhash
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# define lh_num_items OPENSSL_LH_num_items
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# ifndef OPENSSL_NO_STDIO
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# define lh_stats OPENSSL_LH_stats
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# define lh_node_stats OPENSSL_LH_node_stats
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# define lh_node_usage_stats OPENSSL_LH_node_usage_stats
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# endif
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# define lh_stats_bio OPENSSL_LH_stats_bio
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# define lh_node_stats_bio OPENSSL_LH_node_stats_bio
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# define lh_node_usage_stats_bio OPENSSL_LH_node_usage_stats_bio
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# endif
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/* Type checking... */
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# define LHASH_OF(type) struct lhash_st_##type
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# define DEFINE_LHASH_OF(type) \
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LHASH_OF(type) { union lh_##type##_dummy { void* d1; unsigned long d2; int d3; } dummy; }; \
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static ossl_unused ossl_inline LHASH_OF(type) *lh_##type##_new(unsigned long (*hfn)(const type *), \
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int (*cfn)(const type *, const type *)) \
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{ \
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return (LHASH_OF(type) *) \
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OPENSSL_LH_new((OPENSSL_LH_HASHFUNC)hfn, (OPENSSL_LH_COMPFUNC)cfn); \
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} \
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static ossl_unused ossl_inline void lh_##type##_free(LHASH_OF(type) *lh) \
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{ \
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OPENSSL_LH_free((OPENSSL_LHASH *)lh); \
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} \
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static ossl_unused ossl_inline type *lh_##type##_insert(LHASH_OF(type) *lh, type *d) \
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{ \
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return (type *)OPENSSL_LH_insert((OPENSSL_LHASH *)lh, d); \
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} \
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static ossl_unused ossl_inline type *lh_##type##_delete(LHASH_OF(type) *lh, const type *d) \
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{ \
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return (type *)OPENSSL_LH_delete((OPENSSL_LHASH *)lh, d); \
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} \
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static ossl_unused ossl_inline type *lh_##type##_retrieve(LHASH_OF(type) *lh, const type *d) \
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{ \
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return (type *)OPENSSL_LH_retrieve((OPENSSL_LHASH *)lh, d); \
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} \
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static ossl_unused ossl_inline int lh_##type##_error(LHASH_OF(type) *lh) \
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{ \
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return OPENSSL_LH_error((OPENSSL_LHASH *)lh); \
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} \
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static ossl_unused ossl_inline unsigned long lh_##type##_num_items(LHASH_OF(type) *lh) \
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{ \
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return OPENSSL_LH_num_items((OPENSSL_LHASH *)lh); \
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} \
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static ossl_unused ossl_inline void lh_##type##_node_stats_bio(const LHASH_OF(type) *lh, BIO *out) \
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{ \
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OPENSSL_LH_node_stats_bio((const OPENSSL_LHASH *)lh, out); \
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} \
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static ossl_unused ossl_inline void lh_##type##_node_usage_stats_bio(const LHASH_OF(type) *lh, BIO *out) \
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{ \
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OPENSSL_LH_node_usage_stats_bio((const OPENSSL_LHASH *)lh, out); \
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} \
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static ossl_unused ossl_inline void lh_##type##_stats_bio(const LHASH_OF(type) *lh, BIO *out) \
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{ \
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OPENSSL_LH_stats_bio((const OPENSSL_LHASH *)lh, out); \
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} \
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static ossl_unused ossl_inline unsigned long lh_##type##_get_down_load(LHASH_OF(type) *lh) \
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{ \
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return OPENSSL_LH_get_down_load((OPENSSL_LHASH *)lh); \
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} \
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static ossl_unused ossl_inline void lh_##type##_set_down_load(LHASH_OF(type) *lh, unsigned long dl) \
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{ \
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OPENSSL_LH_set_down_load((OPENSSL_LHASH *)lh, dl); \
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} \
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static ossl_unused ossl_inline void lh_##type##_doall(LHASH_OF(type) *lh, \
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void (*doall)(type *)) \
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{ \
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OPENSSL_LH_doall((OPENSSL_LHASH *)lh, (OPENSSL_LH_DOALL_FUNC)doall); \
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} \
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LHASH_OF(type)
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#define IMPLEMENT_LHASH_DOALL_ARG_CONST(type, argtype) \
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int_implement_lhash_doall(type, argtype, const type)
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#define IMPLEMENT_LHASH_DOALL_ARG(type, argtype) \
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int_implement_lhash_doall(type, argtype, type)
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#define int_implement_lhash_doall(type, argtype, cbargtype) \
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static ossl_unused ossl_inline void \
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lh_##type##_doall_##argtype(LHASH_OF(type) *lh, \
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void (*fn)(cbargtype *, argtype *), \
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argtype *arg) \
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{ \
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OPENSSL_LH_doall_arg((OPENSSL_LHASH *)lh, (OPENSSL_LH_DOALL_FUNCARG)fn, (void *)arg); \
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} \
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LHASH_OF(type)
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DEFINE_LHASH_OF(OPENSSL_STRING);
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# ifdef _MSC_VER
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/*
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* push and pop this warning:
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* warning C4090: 'function': different 'const' qualifiers
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*/
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# pragma warning (push)
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# pragma warning (disable: 4090)
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# endif
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DEFINE_LHASH_OF(OPENSSL_CSTRING);
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# ifdef _MSC_VER
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# pragma warning (pop)
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# endif
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/*
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* If called without higher optimization (min. -xO3) the Oracle Developer
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* Studio compiler generates code for the defined (static inline) functions
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* above.
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* This would later lead to the linker complaining about missing symbols when
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* this header file is included but the resulting object is not linked against
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* the Crypto library (openssl#6912).
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*/
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# ifdef __SUNPRO_C
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# pragma weak OPENSSL_LH_new
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# pragma weak OPENSSL_LH_free
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# pragma weak OPENSSL_LH_insert
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# pragma weak OPENSSL_LH_delete
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# pragma weak OPENSSL_LH_retrieve
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# pragma weak OPENSSL_LH_error
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# pragma weak OPENSSL_LH_num_items
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# pragma weak OPENSSL_LH_node_stats_bio
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# pragma weak OPENSSL_LH_node_usage_stats_bio
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# pragma weak OPENSSL_LH_stats_bio
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# pragma weak OPENSSL_LH_get_down_load
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# pragma weak OPENSSL_LH_set_down_load
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# pragma weak OPENSSL_LH_doall
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# pragma weak OPENSSL_LH_doall_arg
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# endif /* __SUNPRO_C */
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#ifdef __cplusplus
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}
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#endif
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#endif
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