Difference between revisions of "TIGMPBuffer"
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Latest revision as of 05:02, 21 May 2018
Return to Unit IGMP
Description
To be documented
Class definitions
TIGMPBuffer = class(TSocketBuffer)
constructor Create(ASocket:TTransportSocket);
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destructor Destroy; override;
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private
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FOffset:Word;
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Offset to RemoteAddress |
FLength:Word;
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Length of RemoteAddress |
FRead:Pointer;
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Pointer to Next Read from Buffer |
FWrite:Pointer;
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Pointer to Next Write to Buffer |
FCount:LongWord;
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Number of Packets in Buffer |
FFirst:PIGMPPacket;
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Pointer to First Packet |
FLast:PIGMPPacket;
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Pointer to Last Packet |
function AddPacket(ASize:Integer):Boolean;
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function RemovePacket:Boolean;
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procedure FlushPackets;
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protected
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procedure SetSize(ASize:LongWord); override;
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public
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function GetNext:Integer;
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function GetCount:LongWord;
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function ReadBuffer(var ABuffer; var ASize:Integer; ARemoteAddress:Pointer; AFlags:Integer):Boolean;
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function WriteBuffer(var ABuffer; ASize:Integer; ARemoteAddress:Pointer):Boolean;
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Function declarations
constructor TIGMPBuffer.Create(ASocket:TTransportSocket);
Description: To be documented
| Note | None documented |
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destructor TIGMPBuffer.Destroy;
Description: To be documented
| Note | None documented |
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function TIGMPBuffer.AddPacket(ASize:Integer):Boolean;
Description: Adds a new Packet as the Last packet in the Buffer
| Note | None documented |
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function TIGMPBuffer.RemovePacket:Boolean;
Description: Removes the First packet from the Buffer
| Note | None documented |
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procedure TIGMPBuffer.FlushPackets;
Description: To be documented
| Note | None documented |
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procedure TIGMPBuffer.SetSize(ASize:LongWord);
Description: Setting the Size clears any current Packets
| Note | None documented |
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function TIGMPBuffer.GetNext:Integer;
Description: To be documented
| Note | None documented |
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function TIGMPBuffer.GetCount:LongWord;
Description: To be documented
| Note | None documented |
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function TIGMPBuffer.ReadBuffer(var ABuffer; var ASize:Integer; ARemoteAddress:Pointer; AFlags:Integer):Boolean;
Description: Stored Packet contains the Data and if IP_HDRINCL the Transport Header
| Size | Passed Size contains size of Buffer and should return the size of Packet |
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| Flags | Flags is for MSG_PEEK and MSG_OOB when applicable |
function TIGMPBuffer.WriteBuffer(var ABuffer; ASize:Integer; ARemoteAddress:Pointer):Boolean;
Description: Supplied Buffer contains the Data and if IP_HDRINCL the Transport Header
| Note | Data that will not fit in the Buffer is simply discarded |
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