mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
5d7b5481ca
* hash.c (rb_hash_shift): use st_shift if hash is not being iterated to delete element without iterating the whole hash. * hash.c (shift_i): remove function * include/ruby/st.h (st_shift): add st_shift function * st.c (st_shift): ditto [Bug #8312] [ruby-core:54524] Patch by funny-falcon git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40457 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/* This is a public domain general purpose hash table package written by Peter Moore @ UCB. */
|
|
|
|
/* @(#) st.h 5.1 89/12/14 */
|
|
|
|
#ifndef RUBY_ST_H
|
|
#define RUBY_ST_H 1
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#if 0
|
|
} /* satisfy cc-mode */
|
|
#endif
|
|
#endif
|
|
|
|
#include "ruby/defines.h"
|
|
|
|
RUBY_SYMBOL_EXPORT_BEGIN
|
|
|
|
#if SIZEOF_LONG == SIZEOF_VOIDP
|
|
typedef unsigned long st_data_t;
|
|
#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
|
|
typedef unsigned LONG_LONG st_data_t;
|
|
#else
|
|
# error ---->> st.c requires sizeof(void*) == sizeof(long) or sizeof(LONG_LONG) to be compiled. <<----
|
|
#endif
|
|
#define ST_DATA_T_DEFINED
|
|
|
|
#ifndef CHAR_BIT
|
|
# ifdef HAVE_LIMITS_H
|
|
# include <limits.h>
|
|
# else
|
|
# define CHAR_BIT 8
|
|
# endif
|
|
#endif
|
|
#ifndef _
|
|
# define _(args) args
|
|
#endif
|
|
#ifndef ANYARGS
|
|
# ifdef __cplusplus
|
|
# define ANYARGS ...
|
|
# else
|
|
# define ANYARGS
|
|
# endif
|
|
#endif
|
|
|
|
typedef struct st_table st_table;
|
|
|
|
typedef st_data_t st_index_t;
|
|
typedef int st_compare_func(st_data_t, st_data_t);
|
|
typedef st_index_t st_hash_func(st_data_t);
|
|
|
|
typedef char st_check_for_sizeof_st_index_t[SIZEOF_VOIDP == (int)sizeof(st_index_t) ? 1 : -1];
|
|
#define SIZEOF_ST_INDEX_T SIZEOF_VOIDP
|
|
|
|
struct st_hash_type {
|
|
int (*compare)(ANYARGS /*st_data_t, st_data_t*/); /* st_compare_func* */
|
|
st_index_t (*hash)(ANYARGS /*st_data_t*/); /* st_hash_func* */
|
|
};
|
|
|
|
#define ST_INDEX_BITS (sizeof(st_index_t) * CHAR_BIT)
|
|
|
|
struct st_table {
|
|
const struct st_hash_type *type;
|
|
st_index_t num_bins;
|
|
unsigned int entries_packed : 1;
|
|
#ifdef __GNUC__
|
|
/*
|
|
* C spec says,
|
|
* A bit-field shall have a type that is a qualified or unqualified
|
|
* version of _Bool, signed int, unsigned int, or some other
|
|
* implementation-defined type. It is implementation-defined whether
|
|
* atomic types are permitted.
|
|
* In short, long and long long bit-field are implementation-defined
|
|
* feature. Therefore we want to supress a warning explicitly.
|
|
*/
|
|
__extension__
|
|
#endif
|
|
st_index_t num_entries : ST_INDEX_BITS - 1;
|
|
union {
|
|
struct {
|
|
struct st_table_entry **bins;
|
|
struct st_table_entry *head, *tail;
|
|
} big;
|
|
struct {
|
|
struct st_packed_entry *entries;
|
|
st_index_t real_entries;
|
|
} packed;
|
|
} as;
|
|
};
|
|
|
|
#define st_is_member(table,key) st_lookup((table),(key),(st_data_t *)0)
|
|
|
|
enum st_retval {ST_CONTINUE, ST_STOP, ST_DELETE, ST_CHECK};
|
|
|
|
st_table *st_init_table(const struct st_hash_type *);
|
|
st_table *st_init_table_with_size(const struct st_hash_type *, st_index_t);
|
|
st_table *st_init_numtable(void);
|
|
st_table *st_init_numtable_with_size(st_index_t);
|
|
st_table *st_init_strtable(void);
|
|
st_table *st_init_strtable_with_size(st_index_t);
|
|
st_table *st_init_strcasetable(void);
|
|
st_table *st_init_strcasetable_with_size(st_index_t);
|
|
int st_delete(st_table *, st_data_t *, st_data_t *); /* returns 0:notfound 1:deleted */
|
|
int st_delete_safe(st_table *, st_data_t *, st_data_t *, st_data_t);
|
|
int st_shift(st_table *, st_data_t *, st_data_t *); /* returns 0:notfound 1:deleted */
|
|
int st_insert(st_table *, st_data_t, st_data_t);
|
|
int st_insert2(st_table *, st_data_t, st_data_t, st_data_t (*)(st_data_t));
|
|
int st_lookup(st_table *, st_data_t, st_data_t *);
|
|
int st_get_key(st_table *, st_data_t, st_data_t *);
|
|
typedef int st_update_callback_func(st_data_t *key, st_data_t *value, st_data_t arg, int existing);
|
|
int st_update(st_table *table, st_data_t key, st_update_callback_func *func, st_data_t arg);
|
|
int st_foreach(st_table *, int (*)(ANYARGS), st_data_t);
|
|
int st_foreach_check(st_table *, int (*)(ANYARGS), st_data_t, st_data_t);
|
|
int st_reverse_foreach(st_table *, int (*)(ANYARGS), st_data_t);
|
|
void st_add_direct(st_table *, st_data_t, st_data_t);
|
|
void st_free_table(st_table *);
|
|
void st_cleanup_safe(st_table *, st_data_t);
|
|
void st_clear(st_table *);
|
|
st_table *st_copy(st_table *);
|
|
int st_numcmp(st_data_t, st_data_t);
|
|
st_index_t st_numhash(st_data_t);
|
|
int st_strcasecmp(const char *s1, const char *s2);
|
|
int st_strncasecmp(const char *s1, const char *s2, size_t n);
|
|
size_t st_memsize(const st_table *);
|
|
st_index_t st_hash(const void *ptr, size_t len, st_index_t h);
|
|
st_index_t st_hash_uint32(st_index_t h, uint32_t i);
|
|
st_index_t st_hash_uint(st_index_t h, st_index_t i);
|
|
st_index_t st_hash_end(st_index_t h);
|
|
st_index_t st_hash_start(st_index_t h);
|
|
#define st_hash_start(h) ((st_index_t)(h))
|
|
|
|
RUBY_SYMBOL_EXPORT_END
|
|
|
|
#if defined(__cplusplus)
|
|
#if 0
|
|
{ /* satisfy cc-mode */
|
|
#endif
|
|
} /* extern "C" { */
|
|
#endif
|
|
|
|
#endif /* RUBY_ST_H */
|