utxo_pool.h

#pragma once
 
#include "constants.h"
#include "uthash.h"
#include "base_tx.h"
#include "leveldb/c.h"
#define UTXO_POOL_KEY_LEN TX_HASH_LEN+sizeof(((Transaction*)0)->inputs->prev_utxo_output)
 
typedef struct UTXOPoolKey {
  unsigned char tx_hash[TX_HASH_LEN];
  unsigned int vout;
} UTXOPoolKey;
 
typedef struct UTXOPool {
  UTXOPoolKey id;
  UTXO *utxo;
  UT_hash_handle hh;
} UTXOPool;
 
char *utxo_pool_path;
leveldb_t *utxo_pool_db;  // Level DB Database
 
int utxo_pool_init_leveldb(char *db_env);
 
int make_utxo_pool_key_with_hash(unsigned char *dest, size_t *len, unsigned char *hash, unsigned int vout);
 
int make_utxo_pool_key(unsigned char *dest, size_t *len, Transaction *tx, unsigned int vout);
 
int utxo_pool_add_leveldb(Transaction *tx, unsigned int vout);
 
int utxo_pool_find_leveldb(UTXO **found_utxo, unsigned char *tx_hash, unsigned int vout);
 
int utxo_pool_remove_leveldb(unsigned char *tx_hash, unsigned int vout);
 
int utxo_pool_count(unsigned int *num_entries);
 
void print_utxo(UTXO *utxo, char *prefix);
 
/*
Prints all of the utxo_pool hashmap to stdout with keys for visualizatoin
 
prefix: string to put in front of all print commands used for tabbing structure
*/
void print_utxo_hashmap(char *prefix);