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/* This is a public domain general purpose hash table package originally written by Peter Moore @ UCB. The hash table data strutures were redesigned and the package was rewritten by Vladimir Makarov <vmakarov@redhat.com>. */ #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; /* Maximal value of unsigned integer type st_index_t. */ #define MAX_ST_INDEX_VAL (~(st_index_t) 0) 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)(st_data_t, st_data_t); /* st_compare_func* */ st_index_t (*hash)(st_data_t); /* st_hash_func* */ }; #define ST_INDEX_BITS (SIZEOF_ST_INDEX_T * CHAR_BIT) #if defined(HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR) && defined(HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P) # define ST_DATA_COMPATIBLE_P(type) \ __builtin_choose_expr(__builtin_types_compatible_p(type, st_data_t), 1, 0) #else # define ST_DATA_COMPATIBLE_P(type) 0 #endif typedef struct st_table_entry st_table_entry; struct st_table_entry; /* defined in st.c */ struct st_table { /* Cached features of the table -- see st.c for more details. */ unsigned char entry_power, bin_power, size_ind; /* How many times the table was rebuilt. */ unsigned int rebuilds_num; const struct st_hash_type *type; /* Number of entries currently in the table. */ st_index_t num_entries; /* Array of bins used for access by keys. */ st_index_t *bins; /* Start and bound index of entries in array entries. entries_starts and entries_bound are in interval [0,allocated_entries]. */ st_index_t entries_start, entries_bound; /* Array of size 2^entry_power. */ st_table_entry *entries; }; #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_REPLACE}; st_table *rb_st_init_table(const struct st_hash_type *); #define st_init_table rb_st_init_table st_table *rb_st_init_table_with_size(const struct st_hash_type *, st_index_t); #define st_init_table_with_size rb_st_init_table_with_size st_table *rb_st_init_numtable(void); #define st_init_numtable rb_st_init_numtable st_table *rb_st_init_numtable_with_size(st_index_t); #define st_init_numtable_with_size rb_st_init_numtable_with_size st_table *rb_st_init_strtable(void); #define st_init_strtable rb_st_init_strtable st_table *rb_st_init_strtable_with_size(st_index_t); #define st_init_strtable_with_size rb_st_init_strtable_with_size st_table *rb_st_init_strcasetable(void); #define st_init_strcasetable rb_st_init_strcasetable st_table *rb_st_init_strcasetable_with_size(st_index_t); #define st_init_strcasetable_with_size rb_st_init_strcasetable_with_size int rb_st_delete(st_table *, st_data_t *, st_data_t *); /* returns 0:notfound 1:deleted */ #define st_delete rb_st_delete int rb_st_delete_safe(st_table *, st_data_t *, st_data_t *, st_data_t); #define st_delete_safe rb_st_delete_safe int rb_st_shift(st_table *, st_data_t *, st_data_t *); /* returns 0:notfound 1:deleted */ #define st_shift rb_st_shift int rb_st_insert(st_table *, st_data_t, st_data_t); #define st_insert rb_st_insert int rb_st_insert2(st_table *, st_data_t, st_data_t, st_data_t (*)(st_data_t)); #define st_insert2 rb_st_insert2 int rb_st_lookup(st_table *, st_data_t, st_data_t *); #define st_lookup rb_st_lookup int rb_st_get_key(st_table *, st_data_t, st_data_t *); #define st_get_key rb_st_get_key typedef int st_update_callback_func(st_data_t *key, st_data_t *value, st_data_t arg, int existing); /* *key may be altered, but must equal to the old key, i.e., the * results of hash() are same and compare() returns 0, otherwise the * behavior is undefined */ int rb_st_update(st_table *table, st_data_t key, st_update_callback_func *func, st_data_t arg); #define st_update rb_st_update typedef int st_foreach_callback_func(st_data_t, st_data_t, st_data_t); typedef int st_foreach_check_callback_func(st_data_t, st_data_t, st_data_t, int); int rb_st_foreach_with_replace(st_table *tab, st_foreach_check_callback_func *func, st_update_callback_func *replace, st_data_t arg); #define st_foreach_with_replace rb_st_foreach_with_replace int rb_st_foreach(st_table *, st_foreach_callback_func *, st_data_t); #define st_foreach rb_st_foreach int rb_st_foreach_check(st_table *, st_foreach_check_callback_func *, st_data_t, st_data_t); #define st_foreach_check rb_st_foreach_check st_index_t rb_st_keys(st_table *table, st_data_t *keys, st_index_t size); #define st_keys rb_st_keys st_index_t rb_st_keys_check(st_table *table, st_data_t *keys, st_index_t size, st_data_t never); #define st_keys_check rb_st_keys_check st_index_t rb_st_values(st_table *table, st_data_t *values, st_index_t size); #define st_values rb_st_values st_index_t rb_st_values_check(st_table *table, st_data_t *values, st_index_t size, st_data_t never); #define st_values_check rb_st_values_check void rb_st_add_direct(st_table *, st_data_t, st_data_t); #define st_add_direct rb_st_add_direct void rb_st_free_table(st_table *); #define st_free_table rb_st_free_table void rb_st_cleanup_safe(st_table *, st_data_t); #define st_cleanup_safe rb_st_cleanup_safe void rb_st_clear(st_table *); #define st_clear rb_st_clear st_table *rb_st_copy(st_table *); #define st_copy rb_st_copy CONSTFUNC(int rb_st_numcmp(st_data_t, st_data_t)); #define st_numcmp rb_st_numcmp CONSTFUNC(st_index_t rb_st_numhash(st_data_t)); #define st_numhash rb_st_numhash PUREFUNC(int rb_st_locale_insensitive_strcasecmp(const char *s1, const char *s2)); #define st_locale_insensitive_strcasecmp rb_st_locale_insensitive_strcasecmp PUREFUNC(int rb_st_locale_insensitive_strncasecmp(const char *s1, const char *s2, size_t n)); #define st_locale_insensitive_strncasecmp rb_st_locale_insensitive_strncasecmp #define st_strcasecmp rb_st_locale_insensitive_strcasecmp #define st_strncasecmp rb_st_locale_insensitive_strncasecmp PUREFUNC(size_t rb_st_memsize(const st_table *)); #define st_memsize rb_st_memsize PUREFUNC(st_index_t rb_st_hash(const void *ptr, size_t len, st_index_t h)); #define st_hash rb_st_hash CONSTFUNC(st_index_t rb_st_hash_uint32(st_index_t h, uint32_t i)); #define st_hash_uint32 rb_st_hash_uint32 CONSTFUNC(st_index_t rb_st_hash_uint(st_index_t h, st_index_t i)); #define st_hash_uint rb_st_hash_uint CONSTFUNC(st_index_t rb_st_hash_end(st_index_t h)); #define st_hash_end rb_st_hash_end CONSTFUNC(st_index_t rb_st_hash_start(st_index_t h)); #define st_hash_start(h) ((st_index_t)(h)) void rb_hash_bulk_insert_into_st_table(long, const VALUE *, VALUE); RUBY_SYMBOL_EXPORT_END #if defined(__cplusplus) #if 0 { /* satisfy cc-mode */ #endif } /* extern "C" { */ #endif #endif /* RUBY_ST_H */