OpenFPGA/vpr7_x2p/vpr/SRC/util/hash.h

39 lines
1.6 KiB
C
Executable File

#define HASHSIZE 5000001
struct s_hash {
char *name;
int index;
int count;
struct s_hash *next;
};
/* name: The string referred to by this hash entry. *
* index: The integer identifier for this entry. *
* count: Number of times an element with this name has been inserted into *
* the table. EXCEPTION: For the structure for blif parsing/reading, *
* blif_hash, value of count is the number of pins on this vpack_net *
* so far. *
* next: A pointer to the next (string,index) entry that mapped to the *
* same hash value, or NULL if there are no more entries. */
struct s_hash_iterator {
int i;
struct s_hash *h_ptr;
};
/* i: current "line" of the hash table. That is, hash_table[i] is the *
* start of the hash linked list for this hash value. *
* h_ptr: Pointer to the next hash structure to be examined in the *
* iteration. */
struct s_hash **alloc_hash_table(void);
void free_hash_table(struct s_hash **hash_table);
struct s_hash_iterator start_hash_table_iterator(void);
struct s_hash *get_next_hash(struct s_hash **hash_table,
struct s_hash_iterator *hash_iterator);
struct s_hash *insert_in_hash_table(struct s_hash **hash_table, char *name,
int next_free_index);
struct s_hash *get_hash_entry(struct s_hash **hash_table, char *name);
int hash_value(char *name);
void get_hash_stats(struct s_hash **hash_table, char *hash_table_name);