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90 lines
3.2 KiB
90 lines
3.2 KiB
/*
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** wspgm.h - winsock extension for PGM Reliable Transport
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**
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** This file contains PGM specific information for use by WinSock2 compatible
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** applications that need Reliable Multicast Transport.
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**
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** Copyright (c) 1995-2000 Microsoft Corporation
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**
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** Created: Mar 12, 2000
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**
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*/
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#ifndef _WSPGM_H_
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#define _WSPGM_H_
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#define IPPROTO_RM 113
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//
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// options for setsockopt, getsockopt
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//
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#define RM_OPTIONSBASE 1000
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// Set/Query rate (Kb/Sec) + window size (Kb and/or MSec) -- described by RM_SEND_WINDOW below
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#define RM_RATE_WINDOW_SIZE (RM_OPTIONSBASE + 1)
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// Set the size of the next message -- (ULONG)
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#define RM_SET_MESSAGE_BOUNDARY (RM_OPTIONSBASE + 2)
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// flush the entire data (window) right now
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#define RM_FLUSHCACHE (RM_OPTIONSBASE + 3)
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// receiver side: discard the partial message and start over
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#define RM_FLUSHMESSAGE (RM_OPTIONSBASE + 4)
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// get sender statistics
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#define RM_SENDER_STATISTICS (RM_OPTIONSBASE + 5)
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// allow a late-joiner to NAK any packet upto the lowest sequence Id
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#define RM_LATEJOIN (RM_OPTIONSBASE + 6)
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// set IP multicast outgoing interface
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#define RM_SET_SEND_IF (RM_OPTIONSBASE + 7)
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// add IP multicast incoming interface
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#define RM_ADD_RECEIVE_IF (RM_OPTIONSBASE + 8)
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// delete IP multicast incoming interface
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#define RM_DEL_RECEIVE_IF (RM_OPTIONSBASE + 9)
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// Set/Query the Window's Advance rate (has to be less that MAX_WINDOW_INCREMENT_PERCENTAGE)
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#define RM_SEND_WINDOW_ADV_RATE (RM_OPTIONSBASE + 10)
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#define SENDER_DEFAULT_RATE_KB_PER_SEC 56 // 56 Kb/Sec
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#define SENDER_DEFAULT_WINDOW_SIZE_BYTES 10 *1000*1000 // 10 Megs
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#define SENDER_MAX_WINDOW_SIZE_BYTES 100*1000*1000 // 100 Megs
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#define SENDER_DEFAULT_WINDOW_ADV_PERCENTAGE 15 // 15%
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#define MAX_WINDOW_INCREMENT_PERCENTAGE 25 // 25%
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#define SENDER_DEFAULT_LATE_JOINER_PERCENTAGE 50 // 50%
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#define SENDER_MAX_LATE_JOINER_PERCENTAGE 75 // 75%
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typedef struct _RM_SEND_WINDOW
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{
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ULONG RateKbPerSec; // Send rate
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ULONG WindowSizeInMSecs;
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ULONG WindowSizeInBytes;
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} RM_SEND_WINDOW;
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typedef struct _RM_SENDER_STATS
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{
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ULONGLONG DataBytesSent; // # client data bytes sent out so far
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ULONGLONG TotalBytesSent; // SPM, OData and RData bytes
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ULONGLONG NaksReceived; // # NAKs received so far
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ULONGLONG NaksReceivedTooLate; // # NAKs recvd after window advanced
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ULONGLONG NumOutstandingNaks; // # NAKs yet to be responded to
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ULONGLONG NumNaksAfterRData; // # NAKs yet to be responded to
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ULONGLONG RepairPacketsSent; // # Repairs (RDATA) sent so far
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// ULONGLONG NumMessagesDropped; // # partial messages dropped
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ULONGLONG TrailingEdgeSeqId; // smallest (oldest) Sequence Id in the window
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ULONGLONG LeadingEdgeSeqId; // largest (newest) Sequence Id in the window
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} RM_SENDER_STATS;
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//
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// Pgm options
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//
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#endif /* _WSPGM_H_ */
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