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#ifndef FC_SOLVE_DBM_SOLVER_H
#define FC_SOLVE_DBM_SOLVER_H
#ifdef __cplusplus
extern "C"
{
#endif
#include "config.h"
#include "bool.h"
#include "inline.h"
#include "generic_tree.h"
#include "dbm_solver_key.h"
/* We need it for the typedef of fcs_fcc_move_t. */
#include "fcc_brfs_test.h"
#ifndef FCS_DBM_WITHOUT_CACHES
#include "dbm_lru_cache.h"
union fcs_pre_cache_key_val_pair_struct
{
struct {
fcs_encoded_state_buffer_t key;
fcs_encoded_state_buffer_t parent;
};
union fcs_pre_cache_key_val_pair_struct * next;
};
typedef union fcs_pre_cache_key_val_pair_struct fcs_pre_cache_key_val_pair_t;
typedef struct {
dict_t * kaz_tree;
fcs_compact_allocator_t kv_allocator;
fcs_pre_cache_key_val_pair_t * kv_recycle_bin;
long count_elements;
} fcs_pre_cache_t;
#endif
typedef void * fcs_dbm_store_t;
void fc_solve_dbm_store_init(fcs_dbm_store_t * store, const char * path);
fcs_bool_t fc_solve_dbm_store_does_key_exist(
fcs_dbm_store_t store,
const unsigned char * key_raw
);
fcs_bool_t fc_solve_dbm_store_lookup_parent(
fcs_dbm_store_t store,
const unsigned char * key,
unsigned char * parent
);
const unsigned char * fc_solve_dbm_store_insert_key_value(
fcs_dbm_store_t store,
const fcs_encoded_state_buffer_t * key,
fcs_encoded_state_buffer_t * parent
);
#ifndef FCS_DBM_WITHOUT_CACHES
void fc_solve_dbm_store_offload_pre_cache(
fcs_dbm_store_t store,
fcs_pre_cache_t * pre_cache
);
#endif
void fc_solve_dbm_store_destroy(fcs_dbm_store_t store);
struct fcs_dbm_queue_item_struct
{
fcs_encoded_state_buffer_t key;
/* TODO : maybe get rid of moves_seq with FCS_DBM_WITHOUT_CACHES
* to save space. */
fcs_fcc_moves_seq_t moves_seq;
#ifdef FCS_DBM_CACHE_ONLY
fcs_fcc_move_t * moves_to_key;
#endif
struct fcs_dbm_queue_item_struct * next;
};
typedef struct fcs_dbm_queue_item_struct fcs_dbm_queue_item_t;
#ifdef __cplusplus
}
#endif
#endif /* FC_SOLVE_DBM_SOLVER_H */
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