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ExecuteMessage.cs
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executable file
·75 lines (65 loc) · 2.45 KB
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#region License
// The PostgreSQL License
//
// Copyright (C) 2015 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Text;
namespace Npgsql.FrontendMessages
{
class ExecuteMessage : SimpleFrontendMessage
{
internal string Portal { get; private set; }
internal int MaxRows { get; private set; }
const byte Code = (byte)'E';
internal ExecuteMessage() {}
internal ExecuteMessage(string portal="", int maxRows=0)
{
Populate(portal, maxRows);
}
internal ExecuteMessage Populate(string portal = "", int maxRows = 0)
{
Portal = portal;
//MaxRows = maxRows;
return this;
}
internal override int Length
{
get { return 1 + 4 + (Portal.Length + 1) + 4; }
}
internal override void Write(NpgsqlBuffer buf)
{
Contract.Requires(Portal != null && Portal.All(c => c < 128));
// TODO: Recycle?
var portalNameBytes = Encoding.ASCII.GetBytes(Portal);
buf.WriteByte(Code);
buf.WriteInt32(Length - 1);
buf.WriteBytesNullTerminated(portalNameBytes);
buf.WriteInt32(MaxRows);
}
public override string ToString()
{
return String.Format("[Execute(Portal={0},MaxRows={1}]", Portal, MaxRows);
}
}
}