bool AsymmetricKey::VerifyKey(const AsymmetricKey &key) const
{
if(this->IsPrivateKey() == key.IsPrivateKey()) {
return false;
}
QSharedPointer<AsymmetricKey> pkey0(this->GetPublicKey());
QSharedPointer<AsymmetricKey> pkey1(key.GetPublicKey());
return pkey0->Equals(*pkey1);
}
int main()
{
u_int32_t env_flags = DB_CREATE |
DB_INIT_LOCK |
DB_INIT_LOG |
DB_INIT_MPOOL |
DB_INIT_TXN;
const char* home = "envHome";
u_int32_t db_flags = DB_CREATE | DB_AUTO_COMMIT;
const char* fileName = "envtest.db";
Db* dbp = NULL;
DbEnv myEnv(0);
try{
myEnv.open(home,env_flags,0);
myEnv.set_flags(DB_MULTIVERSION,1);
dbp = new Db(&myEnv,0);
dbp->open(
NULL, //Txn pointer
fileName, //File name
NULL, //Logic db name
DB_BTREE, //Database type
db_flags, //Open flags
0 //file mode
);
}catch(DbException &e){
std::cerr<<"Error when opening database and Environment:"
<<fileName<<","<<home<<std::endl;
std::cerr<<e.what()<<std::endl;
}
//put data normally
char *key1 = "luffy";
char *data1 = "op";
char *key2= "usopp";
char *data2 = "brave";
Dbt pkey1(key1,strlen(key1)+1);
Dbt pdata1(data1,strlen(data1)+1);
Dbt pkey2(key2,strlen(key2)+1);
Dbt pdata2(data2,strlen(data2)+1);
dbp->put(NULL,&pkey1,&pdata1,0);
dbp->put(NULL,&pkey2,&pdata2,0);
//using txn cursor to read and another cursor to modify before commit
try{
DbTxn *txn1 = NULL;
myEnv.txn_begin(NULL,&txn1,DB_TXN_SNAPSHOT);
Dbc *cursorp = NULL;
dbp->cursor(txn1,&cursorp,0);
Dbt tempData1,tempKey2,tempData2;
tempData2.set_flags(DB_DBT_MALLOC);
cursorp->get(&pkey1,&tempData1,DB_SET);
cursorp->get(&tempKey2,&tempData2,DB_NEXT);
//cout just to see if it is right
std::cout<<(char*)pkey1.get_data()<<" : "<<(char*)tempData1.get_data()<<std::endl
<<(char*)tempKey2.get_data()<<" : "<<(char*)tempData2.get_data()<<std::endl; //we can ignore the lock when operation in //the same transaction
dbp->put(NULL,&pkey1,&pdata2,0);
dbp->put(NULL,&pkey2,&pdata1,0); //will not block even cursor still on this page
//close cursor
cursorp->close();
//commit the txn
txn1->commit(0);
}catch(DbException &e){
std::cerr<<"Error when use a txn"<<std::endl;
}
try{
dbp->close(0); //dbp should close before environment
myEnv.close(0);
}catch(DbException &e){
std::cerr<<"Error when closing database and environment:"
<<fileName<<","<<home<<std::endl;
std::cerr<<e.what()<<std::endl;
}
return 0;
}
