コード例 #1
0
ファイル: statement.cpp プロジェクト: Bhudipta/minix
/// Type-checked version of column_bytes.
///
/// \param name The name of the column to retrieve the size of.
///
/// \return The same as column_bytes if the value can be retrieved.
///
/// \throw error If the type of the cell to retrieve the size of is invalid.
/// \throw invalid_column_error If name is invalid.
int
sqlite::statement::safe_column_bytes(const char* name)
{
    const int column = column_id(name);
    if (column_type(column) != sqlite::type_blob &&
        column_type(column) != sqlite::type_text)
        throw sqlite::error(F("Column '%s' is not a blob or a string") % name);
    return column_bytes(column);
}
コード例 #2
0
ファイル: test_scdong.cpp プロジェクト: FishYoung/CLAIMS
/*******#include "../physical_operator/ExpandableBlockStreamSingleColumnScan.h"
*****Local Disk Access******#include "../physical_operator/ExpandableBlockStreamSingleColumnScanDisk.h"
******/
int main_ld (int argc, char** argv)
{
	const unsigned block_size = atoi(argv[1]);
	const unsigned thread_count = atoi(argv[2]);
	const unsigned expander_buffer = atoi(argv[3]);
	const int columns_num = atoi(argv[4]);
	unsigned long random_size = atoi(argv[5]);	//number of columns which are randomly accessed
	random_size = random_size*sizeof(int);
	unsigned long scan_size = (unsigned long)4*1024*1024*1024-random_size*columns_num;

	cout << "columns_num: " << columns_num << "\t random_size: " << random_size/sizeof(int) << endl;

	std::vector<column_type> column_list,column_list_;
	column_list.push_back(column_type(t_int));
	for (int i = 0; i < columns_num; i++)
		column_list_.push_back(column_type(t_int));

	Schema* i_schema = new SchemaFix(column_list);
	Schema* d_schema = new SchemaFix(column_list_);

//	ExpandableBlockStreamSingleColumnScan::State ebssc_state1("/home/claims/temp/6_0.column", d_schema, block_size);
//	BlockStreamIteratorBase* ebssc1 = new ExpandableBlockStreamSingleColumnScan(ebssc_state1);
//	ebssc1->open();
//	BlockStreamBase* block_=BlockStreamBase::createBlock(i_schema,block_size);
//	while (ebssc1->next(block_)) {};
//	ebssc1->close();
//	block_->~BlockStreamBase();

	ExpandableBlockStreamSingleColumnScanDisk::State ebsscsd_state("/home/claims/temp/5_0.column", d_schema, block_size, scan_size);
	PhysicalOperatorBase* ebsscsd = new ExpandableBlockStreamSingleColumnScanDisk(ebsscsd_state);

	ExpandableBlockStreamSingleColumnScan::State ebssc_state("/home/claims/temp/6_0.column", i_schema, block_size, random_size);
	PhysicalOperatorBase* ebssc = new ExpandableBlockStreamSingleColumnScan(ebssc_state);

//	BlockStreamExpander::State bse_state(i_schema,ebssc,thread_count,block_size,expander_buffer);
//	BlockStreamIteratorBase* bse=new BlockStreamExpander(bse_state);

	ExpandableBlockStreamRandomDiskAccess::State ebsrda_state("/home/claims/temp/Uniform_0_9999.column", ebssc, d_schema, i_schema, block_size);
	PhysicalOperatorBase* ebsrda = new ExpandableBlockStreamRandomDiskAccess(ebsrda_state);

	Expander::State bse_state1(d_schema,ebsscsd,thread_count,block_size,expander_buffer);
	PhysicalOperatorBase* bse1=new Expander(bse_state1);
	Expander::State bse_state2(d_schema,ebsrda,thread_count,block_size,expander_buffer);
	PhysicalOperatorBase* bse2=new Expander(bse_state2);

	BlockStreamPerformanceTest::State bspt_state(d_schema, bse1, bse2, block_size, 1000);
	PhysicalOperatorBase* bspt = new BlockStreamPerformanceTest(bspt_state);

	bspt->Open();
	while (bspt->Next(0));
	bspt->Close();

	return 0;
}
コード例 #3
0
int mainasfasdf22(){
	std::vector<column_type> column_list;
	column_list.push_back(column_type(t_int));

	Schema* input=new SchemaFix(column_list);

	BlockStreamBase* bs=new BlockStreamFix(4096,4);



	void* tuple;
	int value=0;
	int i=0;
	while(tuple=bs->allocateTuple(4)){
		*(int*)tuple=value++;
		printf("insert %d\n",i++);
	}
	BlockStreamBase::BlockStreamTraverseIterator* bsti=bs->createIterator();
	i=0;
	while(tuple=bsti->nextTuple()){
		printf("%d: Tuple=%d\n",i++,*(int*)tuple);
	}




}
コード例 #4
0
ファイル: statement.cpp プロジェクト: racktopsystems/kyua
/// Returns a particular column in the result as a double.
///
/// \param index The column to retrieve.
///
/// \return A C string with the contents.  Note that the pointer returned by
/// this call will be invalidated on the next call to any SQLite API function.
/// If you want to be extra safe, store the result in a std::string to not worry
/// about this.
std::string
sqlite::statement::column_text(const int index)
{
    PRE(column_type(index) == type_text);
    return reinterpret_cast< const char* >(::sqlite3_column_text(
        _pimpl->stmt, index));
}
コード例 #5
0
ファイル: statement.cpp プロジェクト: racktopsystems/kyua
/// Returns a particular column in the result as a blob.
///
/// \param index The column to retrieve.
///
/// \return A block of memory with the blob contents.  Note that the pointer
/// returned by this call will be invalidated on the next call to any SQLite API
/// function.
sqlite::blob
sqlite::statement::column_blob(const int index)
{
    PRE(column_type(index) == type_blob);
    return blob(::sqlite3_column_blob(_pimpl->stmt, index),
                ::sqlite3_column_bytes(_pimpl->stmt, index));
}
コード例 #6
0
ファイル: statement.cpp プロジェクト: Bhudipta/minix
/// Type-checked version of column_double.
///
/// \param name The name of the column to retrieve.
///
/// \return The same as column_double if the value can be retrieved.
///
/// \throw error If the type of the cell to retrieve is invalid.
/// \throw invalid_column_error If name is invalid.
double
sqlite::statement::safe_column_double(const char* name)
{
    const int column = column_id(name);
    if (column_type(column) != sqlite::type_float)
        throw sqlite::error(F("Column '%s' is not a float") % name);
    return column_double(column);
}
コード例 #7
0
            row::column_type row::column(size_t nPosition) const
            {
                if (nPosition >= size()) {
                    throw no_such_column_exception();
                }

                return column_type(make_shared<sqlite::column>(stmt_, nPosition));
            }
コード例 #8
0
ファイル: statement.cpp プロジェクト: Bhudipta/minix
/// Type-checked version of column_int64.
///
/// \param name The name of the column to retrieve.
///
/// \return The same as column_int64 if the value can be retrieved.
///
/// \throw error If the type of the cell to retrieve is invalid.
/// \throw invalid_column_error If name is invalid.
int64_t
sqlite::statement::safe_column_int64(const char* name)
{
    const int column = column_id(name);
    if (column_type(column) != sqlite::type_integer)
        throw sqlite::error(F("Column '%s' is not an integer") % name);
    return column_int64(column);
}
コード例 #9
0
ファイル: row.cpp プロジェクト: ryjen/db
            row::column_type row::column(size_t nPosition) const
            {
                if (nPosition >= size() || row_ == -1) {
                    throw no_such_column_exception();
                }

                return column_type(make_shared<postgres::column>(stmt_, row_, nPosition));
            }
コード例 #10
0
ファイル: statement.cpp プロジェクト: Bhudipta/minix
/// Type-checked version of column_blob.
///
/// \param name The name of the column to retrieve.
///
/// \return The same as column_blob if the value can be retrieved.
///
/// \throw error If the type of the cell to retrieve is invalid.
/// \throw invalid_column_error If name is invalid.
sqlite::blob
sqlite::statement::safe_column_blob(const char* name)
{
    const int column = column_id(name);
    if (column_type(column) != sqlite::type_blob)
        throw sqlite::error(F("Column '%s' is not a blob") % name);
    return column_blob(column);
}
コード例 #11
0
ファイル: statement.cpp プロジェクト: racktopsystems/kyua
/// Type-checked version of column_text.
///
/// \param name The name of the column to retrieve.
///
/// \return The same as column_text if the value can be retrieved.
///
/// \throw error If the type of the cell to retrieve is invalid.
/// \throw invalid_column_error If name is invalid.
std::string
sqlite::statement::safe_column_text(const char* name)
{
    const int column = column_id(name);
    if (column_type(column) != sqlite::type_text)
        throw sqlite::error(_pimpl->db.db_filename(),
                            F("Column '%s' is not a string") % name);
    return column_text(column);
}
コード例 #12
0
ファイル: statement.cpp プロジェクト: racktopsystems/kyua
/// Type-checked version of column_int.
///
/// \param name The name of the column to retrieve.
///
/// \return The same as column_int if the value can be retrieved.
///
/// \throw error If the type of the cell to retrieve is invalid.
/// \throw invalid_column_error If name is invalid.
int
sqlite::statement::safe_column_int(const char* name)
{
    const int column = column_id(name);
    if (column_type(column) != sqlite::type_integer)
        throw sqlite::error(_pimpl->db.db_filename(),
                            F("Column '%s' is not an integer") % name);
    return column_int(column);
}
コード例 #13
0
int mainasdfaf234(int argc,const char** argv){

	std::vector<column_type> column_list,column_list_;
	column_list.push_back(column_type(t_int));

	Schema* input=new SchemaFix(column_list);

	BlockStreamSingleColumnScan::State bsscs_state("/home/claims/temp/Uniform_0_99.column",input);
	PhysicalOperatorBase* bsscs1=new BlockStreamSingleColumnScan(bsscs_state);
	PhysicalOperatorBase* bsscs2=new BlockStreamSingleColumnScan(bsscs_state);

	int f=atoi(argv[2]);



	AttributeComparator fA(column_type(t_int),Comparator::L,0,&f);
	std::vector<AttributeComparator> ComparatorList;
	ComparatorList.push_back(fA);
	BlockStreamFilter::State bsf_state(input,bsscs1,ComparatorList,4096);
	PhysicalOperatorBase* bsf=new BlockStreamFilter(bsf_state);

//
	BlockStreamBase *block=new BlockStreamFix(4096,4);
	int choice=0;

	while(choice==0){


//		bsf->open();
		bsf->Open();
		unsigned long long int start=curtick();

		while(bsf->Next(block)){
			block->setEmpty();
		}
		printf("Time=%f Throughput=%f.\n",getSecond(start),1024/getSecond(start));
		bsf->Close();
		printf("Continue(0) or Not(1) ?\n");

		scanf("%d",&choice);

	}

}
コード例 #14
0
bool
cql::cql_result_metadata_t::column_type(const std::string& column,
                                        cql::cql_column_type_enum& output) const
{
    if (_global_keyspace_name.empty() || _global_table_name.empty()) {
        return false;
    }

    return column_type(_global_keyspace_name, _global_table_name, column, output);
}
コード例 #15
0
ファイル: mod_csv.c プロジェクト: WizardMac/ReadStat
static void produce_column_header_csv(void *csv_metadata, const char *column, readstat_variable_t* var) {
    struct csv_metadata *c = (struct csv_metadata *)csv_metadata;
    metadata_column_type_t coltype = column_type(c->json_md, column, c->output_format);
    if (coltype == METADATA_COLUMN_TYPE_DATE) {
        var->type = READSTAT_TYPE_STRING;
    } else if (coltype == METADATA_COLUMN_TYPE_NUMERIC) {
        var->type = READSTAT_TYPE_DOUBLE;
    } else if (coltype == METADATA_COLUMN_TYPE_STRING) {
        var->type = READSTAT_TYPE_STRING;
    }
}
コード例 #16
0
ファイル: mod_sav.c プロジェクト: WizardMac/ReadStat
void produce_column_header_sav(void *csv_metadata, const char *column, readstat_variable_t* var) {
    struct csv_metadata *c = (struct csv_metadata *)csv_metadata;
    metadata_column_type_t coltype = column_type(c->json_md, column, c->output_format);
    if (coltype == METADATA_COLUMN_TYPE_DATE) {
        var->type = READSTAT_TYPE_DOUBLE;
        snprintf(var->format, sizeof(var->format), "%s", "EDATE40");
    } else if (coltype == METADATA_COLUMN_TYPE_NUMERIC) {
        var->type = READSTAT_TYPE_DOUBLE;
        snprintf(var->format, sizeof(var->format), "F8.%d", get_decimals(c->json_md, column));
    } else if (coltype == METADATA_COLUMN_TYPE_STRING) {
        var->type = READSTAT_TYPE_STRING;
    }
}
コード例 #17
0
bool
cql::cql_result_metadata_t::column_type(const std::string& keyspace,
                                        const std::string& table,
                                        const std::string& column,
                                        cql::cql_column_type_enum& output) const
{
    column_name_idx_t::const_iterator it = _column_name_idx.find(column_name_t(keyspace, table, column));
    if(it != _column_name_idx.end()) {
        column_type(it->second, output);
        return true;
    }
    return false;
}
コード例 #18
0
ファイル: Statement.cpp プロジェクト: 151706061/OrthancMirror
    ColumnType Statement::GetDeclaredColumnType(int col) const 
    {
      std::string column_type(sqlite3_column_decltype(GetStatement(), col));
      std::transform(column_type.begin(), column_type.end(), column_type.begin(), tolower);

      if (column_type == "integer")
        return COLUMN_TYPE_INTEGER;
      else if (column_type == "float")
        return COLUMN_TYPE_FLOAT;
      else if (column_type == "text")
        return COLUMN_TYPE_TEXT;
      else if (column_type == "blob")
        return COLUMN_TYPE_BLOB;

      return COLUMN_TYPE_NULL;
    }
コード例 #19
0
ファイル: strict_typing.c プロジェクト: PengJi/sql_prac
void column_type_udf(sqlite3_context* ctx, int nargs, sqlite3_value** values)
{
    sqlite3 *db;
    const char *table, *column, *type;

    db=(sqlite3*)sqlite3_user_data(ctx);

    table  = sqlite3_value_text(values[0]);
    column = sqlite3_value_text(values[1]);

    /* Get declared type from schema */
    type = column_type(db, table, column);

    /* Return type */
    sqlite3_result_text(ctx, type, (int)strlen(type), free);
}
コード例 #20
0
ファイル: simple_stable.cpp プロジェクト: nathansgreen/anvil
int simple_stable::insert(const dtype & key, const istr & column, const dtype & value, bool append)
{
	int r;
	bool increment = !ct_data->find(key, column).exists();
	if(increment)
	{
		/* this will check that the type matches */
		r = adjust_column(column, 1, value.type);
		if(r < 0)
			return r;
	}
	else if(column_type(column) != value.type)
		return -EINVAL;
	r = ct_data->insert(key, column, value.flatten(), append);
	if(r < 0 && increment)
		adjust_column(column, -1, value.type);
	return r;
}
コード例 #21
0
ファイル: strict_typing.c プロジェクト: PengJi/sql_prac
int install_type_trigger( sqlite3* db, sqlite3_context* ctx, 
                          const char* table, const char* column )
{
    int rc;
    char buf[256];
    char *tmp;
    const char *type, *sql, *emsg;
    char* err;

    type = column_type(db, table, column);

    if(type == NULL) {
        emsg = "column has no declared type";
        sqlite3_result_error(ctx, emsg, (int)strlen(emsg));
        sqlite3_free((void*)type);
        return 1;
    }

    /* Check to see if corresponding validation function exists */

    sql = "select validate_%s(null)";
    tmp = sqlite3_mprintf(sql, type);
    rc = sqlite3_exec(db, tmp, NULL, NULL, &err);
    sqlite3_free(tmp);

    if(rc != SQLITE_OK && err != NULL) {
        emsg = "No validator exists for column type";
        sqlite3_result_error(ctx, emsg, (int)strlen(emsg));
        sqlite3_free((void*)type);
        sqlite3_free(err);
        return 1;
    }

    /* Create INSERT trigger */
    sql = "CREATE TRIGGER %s_insert_%s_typecheck_tr \n"
          "BEFORE INSERT ON %s \n"
          "BEGIN \n"
          "   SELECT CASE \n"
          "     WHEN(SELECT validate_%s(new.%s) != 1) \n"
          "     THEN RAISE(ABORT, 'invalid %s value for %s.%s') \n"
          "   END; \n"
          "END;";

    tmp = sqlite3_mprintf(sql, table, column, table, type, 
                           column, type, table, column);    

    rc = sqlite3_exec(db, tmp, NULL, NULL, &err);
    sqlite3_free(tmp);

    if(rc != SQLITE_OK && err != NULL) {
        strncpy(&buf[0], err, 255);
        buf[256] = '\0';
        sqlite3_result_error(ctx, &buf[0], (int)strlen(&buf[0]));
        sqlite3_free((void*)type);

        return 1;
    }

    /* Create UPDATE trigger */

    sql = "CREATE TRIGGER %s_update_%s_typecheck_tr \n"
          "BEFORE UPDATE OF %s ON %s \n"
          "FOR EACH ROW BEGIN \n"
          "  SELECT CASE \n"
          "    WHEN(SELECT validate_%s(new.%s) != 1) \n"
          "    THEN RAISE(ABORT, 'invalid %s value for %s.%s') \n"
          "  END; \n"
          "END;";

    tmp = sqlite3_mprintf(sql, table, column, column, table, 
                           type, column, type, table, column);

    rc = sqlite3_exec(db, tmp, NULL, NULL, &err);
    sqlite3_free(tmp);
    sqlite3_free((void*)type);

    if(rc != SQLITE_OK && err != NULL) {
        strncpy(&buf[0], err, 255);
        buf[256] = '\0';
        sqlite3_result_error(ctx, &buf[0], (int)strlen(&buf[0]));
        sqlite3_free(err);

        return 1;
    }

    return 0;
}
コード例 #22
0
//int main(int argc,const char** argv){
int main_combine(int argc,const char** argv){
	const unsigned block_size=BLOCK_SIZE_CAO;
	const unsigned thread_count=4;
	const unsigned expander_buffer=4;
	std::vector<column_type> column_list,column_list_;
	column_list.push_back(column_type(t_int));

	Schema* schema=new SchemaFix(column_list);
	ExpandableBlockStreamSingleColumnScan::State ebssc_state1("/home/imdb/temp/Uniform_0_99.column",schema,block_size);
	BlockStreamIteratorBase* ebssc1=new ExpandableBlockStreamSingleColumnScan(ebssc_state1);
	ExpandableBlockStreamSingleColumnScan::State ebssc_state2("/home/imdb/temp/Uniform_0_99.column",schema,block_size);
	BlockStreamIteratorBase* ebssc2=new ExpandableBlockStreamSingleColumnScan(ebssc_state2);

	std::vector<Schema *> inputs;
	inputs.push_back(schema);
	inputs.push_back(schema);

	column_list_.push_back(column_type(t_int));
	column_list_.push_back(column_type(t_int));
	Schema* output=new SchemaFix(column_list_);

	std::vector<BlockStreamIteratorBase *> children_;
	children_.push_back(ebssc1);
	children_.push_back(ebssc2);

	BlockStreamCombinedIterator::State bsci_state(inputs,output,children_);
	BlockStreamCombinedIterator *bsc=new BlockStreamCombinedIterator(bsci_state);

	BlockStreamExpander::State bse_state(schema,bsc,thread_count,block_size,expander_buffer);
	BlockStreamIteratorBase* bse=new BlockStreamExpander(bse_state);

	BlockStreamBase *block=new BlockStreamFix(block_size,8);
	int choice=0;


	std::ostringstream ostr;
	boost::archive::text_oarchive oa(ostr);
	oa.register_type(static_cast<BlockStreamCombinedIterator *>(NULL));
	oa.register_type(static_cast<BlockStreamExpander *>(NULL));
	oa.register_type(static_cast<ExpandableBlockStreamSingleColumnScan *>(NULL));
	Register_Schemas<boost::archive::text_oarchive>(oa);
//	Register_Iterators(oa);
	oa<<bse;

	std::cout<<"Serialization Result:"<<ostr.str()<<std::endl;

	std::istringstream istr(ostr.str());
	boost::archive::text_iarchive ia(istr);
	BlockStreamIteratorBase* des;

	ia.register_type(static_cast<BlockStreamCombinedIterator *>(NULL));
	ia.register_type(static_cast<BlockStreamExpander *>(NULL));
	ia.register_type(static_cast<ExpandableBlockStreamSingleColumnScan *>(NULL));
	Register_Schemas<boost::archive::text_iarchive>(ia);
	ia>>des;
//	return 1;
	while(choice==0){


//		bsf->open();
		des->open();
		cout<<"after open!"<<endl;
		unsigned long long int start=curtick();

		cout<<"ready for the next"<<endl;

		unsigned tuple_count=0;
		while(des->next(block)){
			BlockStreamBase::BlockStreamTraverseIterator* it=block->createIterator();
			while(it->nextTuple()){
				tuple_count++;
			}
			block->setEmpty();
		}
		printf("Time=%f Throughput=%f.\n tuple=%d",getSecond(start),1024/getSecond(start),tuple_count);
		des->close();
		printf("Continue(0) or Not(1) ?\n");

		scanf("%d",&choice);

	}

}
コード例 #23
0
int main_asdfasdf(){
	Environment::getInstance(true);

	ResourceManagerMaster *rmms=Environment::getInstance()->getResourceManagerMaster();
	Catalog* catalog=Environment::getInstance()->getCatalog();
//	rmms->RegisterNewSlave("192.168.1.1");
//	rmms->RegisterNewSlave("192.168.1.2");
//	rmms->RegisterNewSlave("192.168.1.3");
//	rmms->RegisterNewSlave("192.168.1.4");
//	rmms->RegisterNewSlave("192.168.1.5");
//	rmms->RegisterDiskBuget(0,10000);
//	rmms->RegisterDiskBuget(1,10000);
//	rmms->RegisterDiskBuget(2,10000);
//	rmms->RegisterDiskBuget(3,10000);
//	rmms->RegisterDiskBuget(4,10000);


	/////////////////////////////////////Create table left/////////////////////
	TableDescriptor* table_1=new TableDescriptor("Left",Environment::getInstance()->getCatalog()->allocate_unique_table_id());
	table_1->addAttribute("Name",data_type(t_string),3);
	table_1->addAttribute("Age",data_type(t_int));
	table_1->addAttribute("Gender",data_type(t_int));
	table_1->addAttribute("Score",data_type(t_int));

	vector<ColumnOffset> index_1;
	index_1.push_back(0);
	index_1.push_back(1);
	index_1.push_back(3);
	const int partition_key_index_1=3;
	table_1->createHashPartitionedProjection(index_1,partition_key_index_1,3);
	catalog->add_table(table_1);

	////////////////////////////////////Create table right//////////////////////////
	TableDescriptor* table_2=new TableDescriptor("right",Environment::getInstance()->getCatalog()->allocate_unique_table_id());
	table_2->addAttribute("Name",data_type(t_string),10);
	table_2->addAttribute("Age",data_type(t_int));
	table_2->addAttribute("Gender",data_type(t_int));
	table_2->addAttribute("Score",data_type(t_int));

	vector<ColumnOffset> index_2;
	index_2.push_back(0);
	index_2.push_back(1);
	index_2.push_back(3);
	const int partition_key_index_2=3;
	table_2->createHashPartitionedProjection(index_2,partition_key_index_2,3);
	catalog->add_table(table_2);
	///////////////////////////////////////////////////////////








	///////////////////////////////////////


	////////////////////////////////////////
	/* the following codes should be triggered by Load module*/

	for(unsigned i=0;i<table_1->getProjectoin(0)->getPartitioner()->getNumberOfPartitions();i++){

		catalog->getTable(0)->getProjectoin(0)->getPartitioner()->RegisterPartition(i,5);
	}


	for(unsigned i=0;i<table_2->getProjectoin(0)->getPartitioner()->getNumberOfPartitions();i++){

		catalog->getTable(1)->getProjectoin(0)->getPartitioner()->RegisterPartition(i,4);
	}

	////////////////////////////////////////



	ProjectionBinding *pb=new ProjectionBinding();
	pb->BindingEntireProjection(catalog->getTable(0)->getProjectoin(0)->getPartitioner());
	pb->BindingEntireProjection(catalog->getTable(1)->getProjectoin(0)->getPartitioner());

	////scan////////
	std::vector<unsigned> index_list_1;
	index_list_1.push_back(0);
	index_list_1.push_back(1);
	index_list_1.push_back(3);
	LogicalOperator* scan_1=new LogicalScan(table_1->getAttributes(index_list_1));

	////////filter////////
	int f=0;
	FilterIterator::AttributeComparator filter1(column_type(t_int),Comparator::EQ,2,&f);
	std::vector<FilterIterator::AttributeComparator> ComparatorList;
	ComparatorList.push_back(filter1);
	LogicalOperator* filter=new Filter(ComparatorList,scan_1);

	////scan/////////
	std::vector<unsigned> index_list_2;
	index_list_2.push_back(0);
	index_list_2.push_back(1);
	index_list_2.push_back(3);
	LogicalOperator* scan_2=new LogicalScan(table_2->getAttributes(index_list_2));
	//////////////////


	////Join////////
	EqualJoin::JoinPair joinpair(table_1->getAttribute(3),table_2->getAttribute(3));
	std::vector<EqualJoin::JoinPair> pair_list;
	pair_list.push_back(joinpair);

	LogicalOperator* join=new EqualJoin(pair_list,filter,scan_2);


	Dataflow final_dataflow=join->getDataflow();
	printf("Total communication cost: %d\n",final_dataflow.property_.commnication_cost);





	printf("Waiting~\n");
	while(true){
		sleep(1);

	}


}
コード例 #24
0
bool Sqlite3Table::select(sqlite3 * db,
                            QueryData & inQuerydata,
                            std::vector<QueryData> & outQuerydata) const
{
    //    exit_on_error(sqlite3_step(statement), __LINE__);


    std::vector<std::string> all_columns (extract_column_names(inQuerydata));

    std::stringstream ss;
    ss << "SELECT * FROM " + mName;

    if(!all_columns.empty())
    {
        ss <<  + " WHERE ";
    }

    bool first_add(true);
    for(auto it(all_columns.begin()); it != all_columns.end(); it++)
    {
        if(!first_add)
        {
            ss << " AND ";
            first_add = false;
        }
        ss << *it << " = @" << *it;
    }
    ss << ";";

    // Prepare the statement
    sqlite3_stmt * statement;
    bool _success(true);
    _success = (_success && checkIfSqlError(sqlite3_prepare_v2(db, ss.str().c_str(),-1/*null-terminated*/,&statement,NULL), __FILE__, __LINE__));

    // PERFORM BINDING
    for(auto it(inQuerydata.mStringColumns.begin()); it != inQuerydata.mStringColumns.end(); it++)
        _success = (_success && checkIfSqlError(mColumns.find(it->first)->second->bind(statement, &it->second), __FILE__, __LINE__));
    for(auto it(inQuerydata.mIntColumns.begin()); it != inQuerydata.mIntColumns.end(); it++)
        _success = (_success && checkIfSqlError(mColumns.find(it->first)->second->bind(statement, &it->second), __FILE__, __LINE__));
    for(auto it(inQuerydata.mDoubleColumns.begin()); it != inQuerydata.mDoubleColumns.end(); it++)
        _success = (_success && checkIfSqlError(mColumns.find(it->first)->second->bind(statement, &it->second), __FILE__, __LINE__));
    for(auto it(inQuerydata.mNullColumns.begin()); it != inQuerydata.mNullColumns.end(); it++)
        _success = (_success && checkIfSqlError(mColumns.find(*it)->second->bind(statement, nullptr), __FILE__, __LINE__));


    // Fill return data
    int _columnCount(sqlite3_column_count(statement));
    while(sqlite3_step(statement) == SQLITE_ROW)
    {
        QueryData row_result;
        for(int c (0); c < _columnCount; c++)
        {
            std::string column_name(sqlite3_column_name(statement, c));
            Sqlite3Column * column(mColumns.find(column_name)->second.get());
            Sqlite3Type column_type(column->getType());
            if(column_type == Sqlite3Null::_NAME)
            {
                row_result.mNullColumns.push_back(column_name);
            }
            else if(column_type == Sqlite3Integer::_NAME)
            {
                int * v = new int;
                column->value(statement, c, v);
                row_result.mIntColumns.emplace(column_name, *v);
                delete v;
            }
            else if(column_type == Sqlite3Real::_NAME)
            {
                double * v = new double;
                column->value(statement, c, v);
                row_result.mDoubleColumns.emplace(column_name, *v);
                delete v;
            }
            else if(column_type == Sqlite3Text::_NAME)
            {
                std::string * v = new std::string;
                column->value(statement, c, v);
                row_result.mStringColumns.emplace(column_name, *v);
                delete v;
            }
            else
            {
                _success = false;
                std::cerr << "Unimplemented type!" << std::endl;
            }
        }
        outQuerydata.push_back(row_result);
    }

    sqlite3_finalize(statement);

    return _success;
}
コード例 #25
0
void bit_vector_nearest_neighbor_base::fill_schema(
    vector<column_type>& schema) {
  bit_vector_column_id_ = schema.size();
  schema.push_back(column_type(column_type::bit_vector_type, bitnum_));
}
コード例 #26
0
int maincdcdajij(int argc,char* argv[])
{





	///////////////////////////////////////////Scan////////////////////////////////////////|
	std::vector<column_type> column_list;
	column_list.push_back(column_type(t_int));

	Schema* input=new SchemaFix(column_list);
	Schema* output=new SchemaFix(column_list);
	SingleColumnScanIterator::State SCstate1("/home/imdb/temp/1_0.column",input, output);
	Iterator* scs1=new SingleColumnScanIterator(SCstate1);


	///////////////////////////////////////////Exchange////////////////////////////////////|
	printf("argc: %d\n", argc);
	int block_size;

	if(argc==2)
	{
		block_size=atoi(argv[1]);

	}
	else
	{
		block_size=64;
	}
	std::vector<std::string> uppernode;
//	std::vector<std::pair<std::string,std::string> > lowernode;

	std::string p1("10.11.1.204");
	std::string p2("10.11.1.205");
//	pair<std::string,std::string> p3("10.11.1.206","4242");
//	pair<std::string,std::string> p4("10.11.1.207","4242");
//	pair<std::string,std::string> p5("10.11.1.208","4242");

	uppernode.push_back(p1);
	uppernode.push_back(p2);

//	lowernode.push_back(p3);
//	lowernode.push_back(p4);
//	lowernode.push_back(p5);

//	ExchangeIteratorWithWideDependency::State EIstate(input, scs1,block_size,lowernode,uppernode);
	ExchangeIteratorLowerWithWideDependency::State EIstate(input, scs1,uppernode,block_size);
	Iterator* ei=new ExchangeIteratorLowerWithWideDependency(EIstate);





	///////////////////////////////////////Print///////////////////////////////////////////|


	PrintIterator::State PIstate(input,ei);
	Iterator *pi=new PrintIterator(PIstate);
	//-------------------------------------------------------------------------------------|

	std::ostringstream ostr;
	boost::archive::text_oarchive oa(ostr);
//	//	oa.register_type(static_cast<SingleColumnScanIterator *>(NULL));
//		Register_Schemas<boost::archive::text_oarchive>(oa);
//		Register_Iterators(oa);
//		oa<<pi;
//		std::cout<<"Serialization Result:"<<ostr.str()<<std::endl;
	IteratorMessage IM(pi);
	oa<<IM;
	cout<<"serialized: "<<ostr.str()<<endl;
	return 1;
}
コード例 #27
0
ファイル: testSort.cpp プロジェクト: egraldlo/CLAIMS
static int testSort(){
	int master;
	printf("Master(0) or Slave(others)??\n");
	scanf("%d",&master);
	if(master!=0){
		Environment::getInstance(false);
	}
	else{
		Environment::getInstance(true);
		ResourceManagerMaster *rmms=Environment::getInstance()->getResourceManagerMaster();
		Catalog* catalog=Environment::getInstance()->getCatalog();

		TableDescriptor* table_1=new TableDescriptor("cj",Environment::getInstance()->getCatalog()->allocate_unique_table_id());
		/**
		 * @li: I change the following code such that the scheme matches those in cj's first projection
		 */
		table_1->addAttribute("row_id",data_type(t_u_long));  				//0
		table_1->addAttribute("trade_date",data_type(t_int));
		table_1->addAttribute("order_no",data_type(t_u_long));
		table_1->addAttribute("sec_code",data_type(t_int));
		table_1->addAttribute("trade_dir",data_type(t_int));
		table_1->addAttribute("order_type",data_type(t_int));

		vector<ColumnOffset> cj_proj0;
		cj_proj0.push_back(0);
		cj_proj0.push_back(1);
		cj_proj0.push_back(2);
		cj_proj0.push_back(3);
		cj_proj0.push_back(4);
		cj_proj0.push_back(5);
		const int partition_key_index_1=0;
		table_1->createHashPartitionedProjection(cj_proj0,"row_id",1);	//G0
		catalog->add_table(table_1);

		for(unsigned i=0;i<table_1->getProjectoin(0)->getPartitioner()->getNumberOfPartitions();i++){

			catalog->getTable(0)->getProjectoin(0)->getPartitioner()->RegisterPartition(i,1);
		}

		LogicalOperator* scan=new LogicalScan(table_1->getProjectoin(0));

		Filter::Condition filter_condition_1;

		filter_condition_1.add(table_1->getAttribute("row_id"),AttributeComparator::L,std::string("100000"));


		LogicalOperator* filter_1=new Filter(filter_condition_1,scan);

		vector<LogicalSort::OrderByAttr *> oas;
		LogicalSort::OrderByAttr *od0=new LogicalSort::OrderByAttr("cj","row_id");
		LogicalSort::OrderByAttr *od1=new LogicalSort::OrderByAttr("cj","order_no");
		LogicalSort::OrderByAttr *od2=new LogicalSort::OrderByAttr("cj","sec_code");
		oas.push_back(od2);
		oas.push_back(od1);
		oas.push_back(od0);
		LogicalOperator* sort=new LogicalSort(scan,oas);

		BlockStreamIteratorBase *sort_=sort->getIteratorTree(64*1024-sizeof(unsigned));

		BlockStreamPrint::State print_state;
		print_state.block_size_=64*1024-sizeof(unsigned);
		print_state.child_=sort_;
		vector<column_type> column_list;
		column_list.push_back(column_type(t_u_long));
		column_list.push_back(column_type(t_int));
		column_list.push_back(column_type(t_u_long));
		column_list.push_back(column_type(t_int));
		column_list.push_back(column_type(t_int));
		column_list.push_back(column_type(t_int));
		print_state.schema_=new SchemaFix(column_list);
		print_state.spliter_="-|-";
		BlockStreamIteratorBase* print=new BlockStreamPrint(print_state);

		print->open();
		print->next(0);
		print->close();

//		executable_query_plan->open();
//		executable_query_plan->next(0);
//		executable_query_plan->close();
	}
	cout<<"Waiting~~~!~"<<endl;
	while(true){
		sleep(1);
	}
	return 0;
}
コード例 #28
0
static int test_index_scan_iterator()
{
	int master;
		printf("~!OKOKO!!!!!\n");
		printf("Master(0) or Slave(others)??\n");
		scanf("%d",&master);
		if(master!=0){
			Environment::getInstance(false);
		}
		else{

			Environment::getInstance(true);

			ResourceManagerMaster *rmms=Environment::getInstance()->getResourceManagerMaster();
			Catalog* catalog=Environment::getInstance()->getCatalog();

			TableDescriptor* table_1=new TableDescriptor("cj",Environment::getInstance()->getCatalog()->allocate_unique_table_id());
			table_1->addAttribute("row_id",data_type(t_u_long));  				//0
			table_1->addAttribute("trade_date",data_type(t_int));
			table_1->addAttribute("order_no",data_type(t_u_long));
			table_1->addAttribute("sec_code",data_type(t_int));
			table_1->addAttribute("trade_dir",data_type(t_int));
			table_1->addAttribute("order_type",data_type(t_int));				//5

			vector<ColumnOffset> cj_proj0_index;
			cj_proj0_index.push_back(0);
			cj_proj0_index.push_back(1);
			cj_proj0_index.push_back(2);
			cj_proj0_index.push_back(3);
			cj_proj0_index.push_back(4);
			cj_proj0_index.push_back(5);
			const int partition_key_index_1=2;
			table_1->createHashPartitionedProjection(cj_proj0_index,"order_no",4);	//G0

			catalog->add_table(table_1);


			////////////////////////////////////////
			/* the following codes should be triggered by Load module*/
			//////////////////ONE DAY////////////////////////////////////////////////
			//cj_table
			// 4 partitions partitioned by order_no
			for(unsigned i=0;i<table_1->getProjectoin(0)->getPartitioner()->getNumberOfPartitions();i++){

				catalog->getTable(0)->getProjectoin(0)->getPartitioner()->RegisterPartition(i,2);
			}
			/////////////////////////////////////////

			ProjectionBinding *pb=new ProjectionBinding();
			pb->BindingEntireProjection(catalog->getTable(0)->getProjectoin(0)->getPartitioner());

			printf("ready(?)\n");
			int input;
			scanf("%d",&input);

			vector<column_type> blc_column_list;
			blc_column_list.push_back(column_type(t_u_long));
			blc_column_list.push_back(column_type(t_int));
			blc_column_list.push_back(column_type(t_u_long));
			blc_column_list.push_back(column_type(t_int));		//sec_code for indexing
			blc_column_list.push_back(column_type(t_int));
			blc_column_list.push_back(column_type(t_int));

			Schema* blc_schema = new SchemaFix(blc_column_list);
			unsigned block_size = 64*1024;
			bottomLayerCollecting::State blc_state(catalog->getTable(0)->getProjectoin(0)->getProjectionID(), blc_schema, 3, block_size);
//			ExpandableBlockStreamIteratorBase* blc = new bottomLayerCollecting(blc_state);
			PhysicalOperatorBase* blc = new bottomLayerCollecting(blc_state);

			vector<column_type> bls_column_list;
			bls_column_list.push_back(t_int);	//chunk offset
			bls_column_list.push_back(t_int);			//sec_code
			bls_column_list.push_back(t_u_smallInt);	//chunk offset
			bls_column_list.push_back(t_u_smallInt);	//chunk offset

			Schema* bls_schema = new SchemaFix(bls_column_list);
			bottomLayerSorting::State bls_state(bls_schema, blc, block_size, catalog->getTable(0)->getProjectoin(0)->getProjectionID(), 3, "sec_code_index");
//			ExpandableBlockStreamIteratorBase* bls = new bottomLayerSorting(bls_state);
			PhysicalOperatorBase* bls = new bottomLayerSorting(bls_state);

			bls->Open();
			BlockStreamBase* block;
			while(bls->Next(block))
			{

			}
			bls->Close();
/********************************** CSB Plus Tree Index Building Finished! **********************************/
			unsigned long index_id = 0;
			vector<IndexScanIterator::query_range> q_range;
			q_range.clear();
			int value_low = 10107;
			int value_high = 10110;

			IndexScanIterator::query_range q1;
			q1.value_low = malloc(sizeof(int));		//newmalloc
			q1.value_low = (void*)(&value_low);
			q1.comp_low = EQ;
			q1.value_high = malloc(sizeof(int));		//newmalloc
			q1.value_high = (void*)(&value_low);
			q1.comp_high = EQ;
			q1.c_type = t_int;
			q_range.push_back(q1);

			IndexScanIterator::query_range q2;
			q2.value_low = malloc(sizeof(int));		//newmalloc
			q2.value_low = (void*)(&value_high);
			q2.comp_low = EQ;
			q2.value_high = malloc(sizeof(int));		//newmalloc
			q2.value_high = (void*)(&value_high);
			q2.comp_high = EQ;
			q2.c_type = t_int;
			q_range.push_back(q2);

			IndexScanIterator::State isi_state(catalog->getTable(0)->getProjectoin(0)->getProjectionID(), blc_schema, index_id, q_range, block_size);
			PhysicalOperatorBase* isi = new IndexScanIterator(isi_state);

			std::vector<std::string> attribute_name;
			attribute_name.clear();
			attribute_name.push_back("row_id");
			attribute_name.push_back("trade_date");
			attribute_name.push_back("order_no");
			attribute_name.push_back("sec_code");
			attribute_name.push_back("trade_dir");
			attribute_name.push_back("order_type");
			ResultPrinter::State bsp_state(blc_schema, isi, block_size, attribute_name, "\t");
			PhysicalOperatorBase* bsp = new ResultPrinter(bsp_state);
			bsp->Open();
			while(bsp->Next(block))
			{

			}
			bsp->Close();

		}
		cout<<"Waiting~~~!~"<<endl;
		while(true){
			sleep(1);
		}
	return 0;
}
コード例 #29
0
ファイル: euclid_lsh.cpp プロジェクト: yukimori/jubatus_core
void euclid_lsh::fill_schema(vector<column_type>& schema) {
  first_column_id_ = schema.size();
  schema.push_back(column_type(column_type::bit_vector_type, hash_num_));
  schema.push_back(column_type(column_type::float_type));
}
コード例 #30
0
//int main_join_success(int argc, const char** argv){
	int main_join_success22(int argc, const char** argv){
	int master;
	printf("Master(0) or Slave(others)?\n");
	scanf("%d",&master);
	if(master==0){






		Environment::getInstance(true);

//		const unsigned block_size=atoi(argv[1]);
//		const unsigned thread_count=atoi(argv[2]);
//		const unsigned expander_buffer=atoi(argv[3]);
//		std::vector<std::string> upper_ip_list;
//		const unsigned lowers_1=atoi(argv[4]);
//		const unsigned lowers_2=atoi(argv[5]);

		const unsigned block_size=4096;
		const unsigned thread_count=3;
		const unsigned expander_buffer=3;
		std::vector<std::string> upper_ip_list;
		const unsigned lowers_1=3;
		const unsigned lowers_2=3;

		upper_ip_list.push_back("10.11.1.208");

		std::vector<std::string> lower_ip_list;
//		lower_ip_list.push_back("10.11.1.201");
		lower_ip_list.push_back("10.11.1.202");
		lower_ip_list.push_back("10.11.1.203");
		lower_ip_list.push_back("10.11.1.204");

		lower_ip_list.push_back("10.11.1.205");
		lower_ip_list.push_back("10.11.1.206");
		lower_ip_list.push_back("10.11.1.207");
//		lower_ip_list.push_back("10.11.1.208");
//		lower_ip_list.push_back("10.11.1.209");
//		lower_ip_list.push_back("10.11.1.210");
//		lower_ip_list.push_back("10.11.1.211");
//		lower_ip_list.push_back("10.11.1.214");

//		std::vector<std::string> used_lowers;
//		for(unsigned i=0;i<lowers;i++){
//			used_lowers.push_back(lower_ip_list[i]);
//		}

		std::vector<std::string> used_lowers_1;
		for(unsigned i=0;i<lowers_1;i++){
			used_lowers_1.push_back(lower_ip_list[i]);
		}

		std::vector<std::string> used_lowers_2;

		for(unsigned i=lower_ip_list.size()-1;i>=lower_ip_list.size()-lowers_2;i--){
			used_lowers_2.push_back(lower_ip_list[i]);
		}

		std::vector<column_type> column_list,column_list_;
		column_list.push_back(column_type(t_int));

		Schema* schema=new SchemaFix(column_list);
//		ExpandableBlockStreamSingleColumnScan::State ebssc_state("/home/imdb/temp/Uniform_0_99.column",schema,block_size);
//		BlockStreamIteratorBase* ebssc=new ExpandableBlockStreamSingleColumnScan(ebssc_state);

		ExpandableBlockStreamSingleColumnScan::State ebssc_state1("/home/imdb/temp/zhanglei/join_2",schema,block_size);
		BlockStreamIteratorBase* ebssc1=new ExpandableBlockStreamSingleColumnScan(ebssc_state1);

//		ExpandableBlockStreamSingleColumnScan::State ebssc_state2("/home/imdb/temp/zhanglei/Uniform_0_99.column_10000",schema,block_size);
//		BlockStreamIteratorBase* ebssc2=new ExpandableBlockStreamSingleColumnScan(ebssc_state2);

		ExpandableBlockStreamSingleColumnScan::State ebssc_state3("/home/imdb/temp/zhanglei/join_2_cp",schema,block_size);
		BlockStreamIteratorBase* ebssc3=new ExpandableBlockStreamSingleColumnScan(ebssc_state3);

//		ExpandableBlockStreamSingleColumnScan::State ebssc_state4("/home/imdb/temp/zhanglei/Uniform_0_99.column_10000_copy",schema,block_size);
//		BlockStreamIteratorBase* ebssc4=new ExpandableBlockStreamSingleColumnScan(ebssc_state4);

//		FilterIterator::AttributeComparator filter1(column_type(t_int),Comparator::L,0,&f);
//		std::vector<FilterIterator::AttributeComparator> ComparatorList;
//		ComparatorList.push_back(filter1);
//		ExpandableBlockStreamFilter::State ebsf_state(schema,ebssc,ComparatorList,block_size);
//		BlockStreamIteratorBase* bbsf=new ExpandableBlockStreamFilter(ebsf_state);

		std::vector<Schema *> inputs;
		inputs.push_back(schema);
		inputs.push_back(schema);

		column_list_.push_back(column_type(t_int));
		column_list_.push_back(column_type(t_int));
		Schema* output=new SchemaFix(column_list_);

		std::vector<BlockStreamIteratorBase *> children_;
		children_.push_back(ebssc1);
		children_.push_back(ebssc3);

		////////////////////////////////////////combined\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\


		BlockStreamCombinedIterator::State bsci_state1(inputs,output,children_);
		BlockStreamCombinedIterator *bsc1=new BlockStreamCombinedIterator(bsci_state1);


		BlockStreamExpander::State bse_state(output,bsc1,thread_count,block_size,expander_buffer);
		BlockStreamIteratorBase* bse=new BlockStreamExpander(bse_state);


		const int exchange_id=1;
		ExpandableBlockStreamBroadcastExchange::State ebse_state(output,bse,block_size,used_lowers_2,used_lowers_1,exchange_id);
		BlockStreamIteratorBase* ebse=new ExpandableBlockStreamBroadcastExchange(ebse_state);

		BlockStreamCombinedIterator::State bsci_state2(inputs,output,children_);
		BlockStreamCombinedIterator *bsc2=new BlockStreamCombinedIterator(bsci_state2);

		std::vector<column_type> column_list_join;
		column_list_join.push_back(column_type(t_int));
		column_list_join.push_back(column_type(t_int));
		column_list_join.push_back(column_type(t_int));
		Schema* output_join=new SchemaFix(column_list_join);

		std::vector<unsigned> joinIndex_left;
		joinIndex_left.push_back(0);
		std::vector<unsigned> joinIndex_right;
		joinIndex_right.push_back(1);
		std::vector<unsigned> payload_left;
		payload_left.push_back(1);
		std::vector<unsigned> payload_right;
		payload_right.push_back(0);

		BlockStreamJoinIterator::State bsji_state;//(ebse,bsc2,output,output,output_join,joinIndex_left,joinIndex_right,payload_left,payload_right,100,1024,4096);
		BlockStreamJoinIterator* bsji=new BlockStreamJoinIterator(bsji_state);

		BlockStreamExpander::State bse_state_(output_join,bsji,thread_count,block_size,expander_buffer);
		BlockStreamIteratorBase* bse_=new BlockStreamExpander(bse_state_);

		const int exchange_id_1=0;
		ExpandableBlockStreamBroadcastExchange::State ebse_state_(output,bse_,block_size,used_lowers_1,upper_ip_list,exchange_id_1);
		BlockStreamIteratorBase* ebse_=new ExpandableBlockStreamBroadcastExchange(ebse_state_);

		BlockStreamExpander::State bse_state_1(output_join,ebse_,thread_count,block_size,expander_buffer);
		BlockStreamIteratorBase* bse_1=new BlockStreamExpander(bse_state_1);


		BlockStreamPerformanceMonitorTop::State bspfm_state(output_join,bse_1,block_size,1000);
		BlockStreamIteratorBase* bspfm=new BlockStreamPerformanceMonitorTop(bspfm_state);

		/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


			BlockStreamBase *block=new BlockStreamFix(block_size,12);


			volatile int choice;

			printf("Continue(1) or Not(0) ?\n");
			scanf("%d",&choice);
			unsigned tuple_count=0;
			while(choice==1){


		//		bsf->open();

				ebse_->open();
				unsigned long long int start=curtick();
//				tuple_count=0;
				while(ebse_->next(block)){
					BlockStreamBase::BlockStreamTraverseIterator *it=block->createIterator();
					void* tuple;
					while(tuple=it->nextTuple()){
						printf("tuple:%d \n",*(int*)tuple);
						tuple_count++;
					}
					block->setEmpty();
				}

				printf("Total tupls:%d\n",tuple_count);
				printf("Time=%f Throughput=%f.\n",getSecond(start),1024/getSecond(start));
				ebse_->close();

				printf("Continue(0) or Not(1) ?\n");
	//			getchar();
				scanf("%d",&choice);
				printf("you input %d\n",choice);

			}
		}
		else{
			Environment::getInstance(false);
		}

		printf("Waiting~~~~~....\n");
		while(true){
			sleep(1);
		}
}