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f64018b111
a loop to fix iteration miss when hash is modified during iteration. [ruby-dev:37910] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22132 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
117 lines
3 KiB
C
117 lines
3 KiB
C
/* This is a public domain general purpose hash table package written by Peter Moore @ UCB. */
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/* @(#) st.h 5.1 89/12/14 */
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#ifndef RUBY_ST_H
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#define RUBY_ST_H 1
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#if defined(__cplusplus)
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extern "C" {
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#if 0
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} /* satisfy cc-mode */
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#endif
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#endif
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#ifndef RUBY_LIB
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#include "ruby/config.h"
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#include "ruby/defines.h"
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#ifdef RUBY_EXTCONF_H
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#include RUBY_EXTCONF_H
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#endif
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#endif
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#if defined STDC_HEADERS
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#include <stddef.h>
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#elif defined HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#if SIZEOF_LONG == SIZEOF_VOIDP
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typedef unsigned long st_data_t;
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#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
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typedef unsigned LONG_LONG st_data_t;
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#else
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# error ---->> st.c requires sizeof(void*) == sizeof(long) to be compiled. <<----
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#endif
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#define ST_DATA_T_DEFINED
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#ifndef CHAR_BIT
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# ifdef HAVE_LIMITS_H
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# include <limits.h>
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# else
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# define CHAR_BIT 8
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# endif
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#endif
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#ifndef _
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# define _(args) args
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#endif
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#ifndef ANYARGS
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# ifdef __cplusplus
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# define ANYARGS ...
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# else
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# define ANYARGS
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# endif
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#endif
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typedef struct st_table st_table;
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typedef int st_compare_func(st_data_t, st_data_t);
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typedef int st_hash_func(st_data_t);
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struct st_hash_type {
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int (*compare)(ANYARGS /*st_data_t, st_data_t*/); /* st_compare_func* */
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int (*hash)(ANYARGS /*st_data_t*/); /* st_hash_func* */
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};
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typedef st_data_t st_index_t;
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#define ST_INDEX_BITS (sizeof(st_index_t) * CHAR_BIT)
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struct st_table {
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const struct st_hash_type *type;
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st_index_t num_bins;
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unsigned int entries_packed : 1;
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#ifdef __GNUC__
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__extension__
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#endif
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st_index_t num_entries : ST_INDEX_BITS - 1;
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struct st_table_entry **bins;
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struct st_table_entry *head, *tail;
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};
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#define st_is_member(table,key) st_lookup(table,key,(st_data_t *)0)
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enum st_retval {ST_CONTINUE, ST_STOP, ST_DELETE, ST_CHECK};
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st_table *st_init_table(const struct st_hash_type *);
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st_table *st_init_table_with_size(const struct st_hash_type *, int);
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st_table *st_init_numtable(void);
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st_table *st_init_numtable_with_size(int);
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st_table *st_init_strtable(void);
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st_table *st_init_strtable_with_size(int);
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st_table *st_init_strcasetable(void);
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st_table *st_init_strcasetable_with_size(int);
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int st_delete(st_table *, st_data_t *, st_data_t *); /* returns 0:notfound 1:deleted */
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int st_delete_safe(st_table *, st_data_t *, st_data_t *, st_data_t);
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int st_insert(st_table *, st_data_t, st_data_t);
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int st_lookup(st_table *, st_data_t, st_data_t *);
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int st_get_key(st_table *, st_data_t, st_data_t *);
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int st_foreach(st_table *, int (*)(ANYARGS), st_data_t);
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int st_reverse_foreach(st_table *, int (*)(ANYARGS), st_data_t);
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void st_add_direct(st_table *, st_data_t, st_data_t);
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void st_free_table(st_table *);
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void st_cleanup_safe(st_table *, st_data_t);
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void st_clear(st_table *);
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st_table *st_copy(st_table *);
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int st_numcmp(st_data_t, st_data_t);
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int st_numhash(st_data_t);
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int st_strcasecmp(const char *s1, const char *s2);
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int st_strncasecmp(const char *s1, const char *s2, size_t n);
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#if defined(__cplusplus)
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#if 0
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{ /* satisfy cc-mode */
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#endif
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} /* extern "C" { */
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#endif
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#endif /* RUBY_ST_H */
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