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mapping.h 6.14 KiB
/*\
||| This file a part of Pike, and is copyright by Fredrik Hubinette
||| Pike is distributed as GPL (General Public License)
||| See the files COPYING and DISCLAIMER for more information.
\*/
/*
* $Id: mapping.h,v 1.34 2000/12/16 05:45:44 marcus Exp $
*/
#ifndef MAPPING_H
#define MAPPING_H
#include "las.h"
#include "block_alloc_h.h"
#define MAPPING_FLAG_WEAK 1
struct keypair
{
struct keypair *next;
unsigned INT32 hval;
struct svalue ind, val;
};
struct mapping_data
{
INT32 refs;
INT32 valrefs; /* lock values too */
INT32 hardlinks;
INT32 size, hashsize;
INT32 num_keypairs;
TYPE_FIELD ind_types, val_types;
INT16 flags;
struct keypair *free_list;
struct keypair *hash[1 /* hashsize */ ];
/* struct keypair data_block[ hashsize * AVG_LINK_LENGTH ] */
};
#undef MAPPING_SIZE_DEBUG
/* This debug doesn't work with weak mappings in the gc. */
struct mapping
{
INT32 refs;
#ifdef PIKE_SECURITY
struct object *prot;
#endif
#ifdef MAPPING_SIZE_DEBUG
INT32 debug_size;
#endif
struct mapping_data *data;
struct mapping *next, *prev;
};
extern struct mapping *first_mapping;
extern struct mapping *gc_internal_mapping;
#define map_delete(m,key) map_delete_no_free(m, key, 0)
#define m_sizeof(m) ((m)->data->size)
#define m_ind_types(m) ((m)->data->ind_types)
#define m_val_types(m) ((m)->data->val_types)
#define mapping_get_flags(m) ((m)->data->flags)
#define NEW_MAPPING_LOOP(md) \
for((e=0) DO_IF_DMALLOC( ?0:(debug_malloc_touch(md)) ) ;e<md->hashsize;e++) for(k=md->hash[e];k;k=k->next)
/* WARNING: this should not be used */
#define MAPPING_LOOP(m) \
for((e=0) DO_IF_DMALLOC( ?0:(debug_malloc_touch(m),debug_malloc_touch(m->data))) ;e<m->data->hashsize;e++) for(k=m->data->hash[e];k;k=k->next)
#define free_mapping(M) do{ struct mapping *m_=(M); debug_malloc_touch(m_); if(!--m_->refs) really_free_mapping(m_); }while(0)
#define free_mapping_data(M) do{ \
struct mapping_data *md_=(M); \
debug_malloc_touch(md_); \
if(!--md_->refs) really_free_mapping_data(md_); \
/* FIXME: What about valrefs & hardlinks? */ \
}while(0)
PMOD_PROTO void really_free_mapping(struct mapping *md);
/* Prototypes begin here */
BLOCK_ALLOC(mapping, 511)
PMOD_EXPORT struct mapping *debug_allocate_mapping(int size);
PMOD_EXPORT void really_free_mapping_data(struct mapping_data *md);
PMOD_EXPORT void do_free_mapping(struct mapping *m);
struct mapping_data *copy_mapping_data(struct mapping_data *md);
PMOD_EXPORT void mapping_fix_type_field(struct mapping *m);
PMOD_EXPORT void mapping_set_flags(struct mapping *m, int flags);
PMOD_EXPORT void low_mapping_insert(struct mapping *m,
struct svalue *key,
struct svalue *val,
int overwrite);
PMOD_EXPORT void mapping_insert(struct mapping *m,
struct svalue *key,
struct svalue *val);
PMOD_EXPORT union anything *mapping_get_item_ptr(struct mapping *m,
struct svalue *key,
TYPE_T t);
PMOD_EXPORT void map_delete_no_free(struct mapping *m,
struct svalue *key,
struct svalue *to);
PMOD_EXPORT void check_mapping_for_destruct(struct mapping *m);
PMOD_EXPORT struct svalue *low_mapping_lookup(struct mapping *m,
struct svalue *key);
PMOD_EXPORT struct svalue *low_mapping_string_lookup(struct mapping *m,
struct pike_string *p);
PMOD_EXPORT void mapping_string_insert(struct mapping *m,
struct pike_string *p,
struct svalue *val);
PMOD_EXPORT void mapping_string_insert_string(struct mapping *m,
struct pike_string *p,
struct pike_string *val);
PMOD_EXPORT struct svalue *simple_mapping_string_lookup(struct mapping *m,
char *p);
PMOD_EXPORT struct svalue *mapping_mapping_lookup(struct mapping *m,
struct svalue *key1,
struct svalue *key2,
int create);
PMOD_EXPORT struct svalue *mapping_mapping_string_lookup(struct mapping *m,
struct pike_string *key1,
struct pike_string *key2,
int create);
PMOD_EXPORT void mapping_index_no_free(struct svalue *dest,
struct mapping *m,
struct svalue *key);
PMOD_EXPORT struct array *mapping_indices(struct mapping *m);
PMOD_EXPORT struct array *mapping_values(struct mapping *m);
PMOD_EXPORT struct array *mapping_to_array(struct mapping *m);
PMOD_EXPORT void mapping_replace(struct mapping *m,struct svalue *from, struct svalue *to);
PMOD_EXPORT struct mapping *mkmapping(struct array *ind, struct array *val);
PMOD_EXPORT struct mapping *copy_mapping(struct mapping *m);
PMOD_EXPORT struct mapping *copy_mapping(struct mapping *m);
PMOD_EXPORT struct mapping *merge_mappings(struct mapping *a, struct mapping *b, INT32 op);
PMOD_EXPORT struct mapping *merge_mapping_array_ordered(struct mapping *a,
struct array *b, INT32 op);
PMOD_EXPORT struct mapping *merge_mapping_array_unordered(struct mapping *a,
struct array *b, INT32 op);
PMOD_EXPORT struct mapping *add_mappings(struct svalue *argp, INT32 args);
PMOD_EXPORT int mapping_equal_p(struct mapping *a, struct mapping *b, struct processing *p);
void describe_mapping(struct mapping *m,struct processing *p,int indent);
node *make_node_from_mapping(struct mapping *m);
PMOD_EXPORT void f_m_delete(INT32 args);
PMOD_EXPORT void f_aggregate_mapping(INT32 args);
PMOD_EXPORT struct mapping *copy_mapping_recursively(struct mapping *m,
struct processing *p);
PMOD_EXPORT void mapping_search_no_free(struct svalue *to,
struct mapping *m,
struct svalue *look_for,
struct svalue *key );
void check_mapping(struct mapping *m);
void check_all_mappings(void);
void gc_mark_mapping_as_referenced(struct mapping *m);
unsigned gc_touch_all_mappings(void);
void gc_check_all_mappings(void);
void gc_mark_all_mappings(void);
void real_gc_cycle_check_mapping(struct mapping *m, int weak);
void gc_cycle_check_all_mappings(void);
void gc_zap_ext_weak_refs_in_mappings(void);
void gc_free_all_unreferenced_mappings(void);
void simple_describe_mapping(struct mapping *m);
void debug_dump_mapping(struct mapping *m);
void zap_all_mappings(void);
/* Prototypes end here */
#define allocate_mapping(X) dmalloc_touch(struct mapping *,debug_allocate_mapping(X))
#define gc_cycle_check_mapping(X, WEAK) \
gc_cycle_enqueue((gc_cycle_check_cb *) real_gc_cycle_check_mapping, (X), (WEAK))
#endif /* MAPPING_H */