static void SelectDataBack(MySqlConnection conn, TaskChain tc)
{
string sql = "select * from test001";
var cmd = new MySqlCommand(sql, conn);
tc.AddTask(() =>
{
#if DEBUG
conn.dbugPleaseBreak = true;
#endif
});
//this is very basic mapper***
var mapper = Mapper.Map((SimpleInfo t, int col_id, string col2, string col3) =>
{
t.col1 = col_id;
t.col2 = col2;
});
cmd.AsyncExecuteSubTableReader(tc, reader =>
{
mapper.DataReader = reader;
while (reader.Read())
{
var simpleInfo = mapper.Map(new SimpleInfo());
}
////simple map query result to member of the target object
////we create simpleinfo and use mapper to map field
tc.AutoCallNext = reader.CurrentSubTable.IsLastTable;
});
}
static void SelectDataBack(MySqlConnection conn, TaskChain tc)
{
string sql = "select * from test001";
var cmd = new MySqlCommand(sql, conn);
tc.AddTask(() =>
{
#if DEBUG
conn.dbugPleaseBreak = true;
#endif
});
//this is very basic mapper***
var mapper = Mapper.Map((SimpleInfo t, int col_id, string col2, string col3) =>
{
t.col1 = col_id;
t.col2 = col2;
});
cmd.AsyncExecuteSubTableReader(tc, reader =>
{
mapper.DataReader = reader;
while (SharpConnect.MySql.SyncPatt.MySqlSyncPattExtension.Read(reader))
{
var simpleInfo = mapper.Map(new SimpleInfo());
}
tc.AutoCallNext = reader.CurrentSubTable.IsLastTable;
});
}
public static void T_Select_sysdate3()
{
//prefer this
var connStr = GetMySqlConnString();
var conn = new MySqlConnection(connStr);
var tc = new TaskChain();
conn.AsyncOpen(tc);
var cmd = new MySqlCommand("select sysdate()", conn);
cmd.AsyncExecuteSubTableReader(tc, reader =>
{
if (reader.Read())
{
var dtm = reader.GetDateTime(0);
}
});
conn.AsyncClose(tc);
tc.WhenFinish(() =>
{
});
tc.Start();
}
public static void T_InsertAndSelect_Async3()
{
System.Diagnostics.Stopwatch stopW = new System.Diagnostics.Stopwatch();
stopW.Start();
var connStr = GetMySqlConnString();
var conn = new MySqlConnection(connStr);
conn.UseConnectionPool = true;
var tc = new TaskChain();
//add task chain too connection object
conn.AsyncOpen(tc);
//-----------------------------------------
{
//drop table if exist
string sql = "drop table if exists test001";
var cmd = new MySqlCommand(sql, conn);
cmd.AsyncExecuteNonQuery(tc);
}
//-----------------------------------------
{
//drop table if exist
string sql = "drop table if exists test001";
var cmd = new MySqlCommand(sql, conn);
cmd.AsyncExecuteNonQuery(tc);
}
//-----------------------------------------
{
string sql = "create table test001(col_id int(10) unsigned not null auto_increment, col1 int(10)," +
"col2 char(2),col3 varchar(255),col4 datetime, primary key(col_id) )";
var cmd = new MySqlCommand(sql, conn);
cmd.AsyncExecuteNonQuery(tc);
}
//-----------------------------------------
for (int i = 0; i < 100; ++i)
{
string sql = "insert into test001(col1,col2,col3,col4) values(10,'AA','123456789','0001-01-01')";
var cmd = new MySqlCommand(sql, conn);
cmd.AsyncExecuteNonQuery(tc);
}
//-----------------------------------------
{
string sql = "select * from test001";
var cmd = new MySqlCommand(sql, conn);
cmd.AsyncExecuteSubTableReader(tc, subtable =>
{
//when new task is add after tc is started
//then this new task is immmediately insert
//after current task
});
}
{
string sql = "select sysdate()";
var cmd = new MySqlCommand(sql, conn);
cmd.AsyncExecuteScalar <DateTime>(tc, dtm =>
{
});
}
//-----------------------------------------
conn.AsyncClose(tc);
tc.WhenFinish(() =>
{
stopW.Stop();
Report.WriteLine("avg:" + stopW.ElapsedTicks);
});
tc.BeforeEachTaskBegin(() =>
{
Console.WriteLine(tc.CurrentTaskIndex + "/" + tc.TaskCount);
});
//----------------------------------------
tc.Start();
}