RCS file: /Users/implicit/Desktop/Source Code/cvs_strings/beads/timesync/main/clocksync.c,v
`Working file: bdk/beads/timesync/main/clocksync.c
`head: 1.32
`branch:
`locks: strict
`access list:
`symbolic names:
`BUILD_20060123: 1.32
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`BANDON_20031219: 1.31.0.42
`BANDON_20031214: 1.31.0.40
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`BANDON_20031204: 1.31.0.38
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`BEADS_SILVER_0027: 1.26
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`RADKIT_GOLD_0014: 1.18.0.2
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`SILVER: 1.32
`
`keyword substitution: kv
`total revisions: 32;
`selected revisions: 32
`description:
`----------------------------
`revision 1.32
`date: 2004-03-09 21:45:51 -0600; author: build; state: Exp; lines: +60 -131;
`Fix GCC type-punning warnings, which are new as of GCC 3.3.2.
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`Fix coding convention violations (mostly whitespace)
`----------------------------
`revision 1.31
`date: 2002-06-10 15:30:07 -0500; author: davidc; state: Exp; lines: +22 -2;
`Added a printout for when the epoch of a remote render clock, which is probably a master
`clock, changes by more than five milliseconds, since this has a noticable effect on
`synchornization.
`----------------------------
`revision 1.30
`date: 2002-05-31 15:01:28 -0500; author: davidc; state: Exp; lines: +7 -5;
`Added the value of the master clock epoch to the "Encoding Master Clock Epoch" DEBUGOUT.
`----------------------------
`revision 1.29
`date: 2002-05-24 18:38:54 -0500; author: davidc; state: Exp; lines: +5 -5;
`Made it so that the MasterClockOffset is treated as a signed value.
`----------------------------
`revision 1.28
`date: 2002-05-17 14:50:30 -0500; author: davidc; state: Exp; lines: +4 -2;
`Added the value of the master clock offset to the SOS_DEBUGOUT_DETAIL that said when the
`decode edge received a master clock offset.
`----------------------------
`revision 1.27
`date: 2002-05-17 14:24:20 -0500; author: davidc; state: Exp; lines: +84 -12;
`Added code to send updates to the "MasterClockOffset" path attribute from the source to the
`sink.
`----------------------------
`revision 1.26
`date: 2002-05-10 11:54:03 -0500; author: davidc; state: Exp; lines: +2 -102;
`Removed the deprecated ClockSync[MasterEncode] and ClockSync[SlaveEncode] edges.
`----------------------------
`revision 1.25
`date: 2002-05-09 17:21:54 -0500; author: davidc; state: Exp; lines: +59 -45;
`Added a new flag, FLAG_ISMASTERPATHISVALID, which determines if the FLAG_ISMASTERPATH
`should be ignored or not. This makes it so that loopback packets don't have to set
`FLAG_ISMASTERPATH, which eliminates the risk of the sink changing the master-ness state on
`the source.
`----------------------------
`revision 1.24
`date: 2002-05-09 13:44:00 -0500; author: davidc; state: Exp; lines: +8 -2;
`Added code to set the FLAG_ISMASTERPATH flag when the Encode edge detects that it belongs
`to the master path.
`----------------------------
`revision 1.23
`date: 2002-05-09 12:35:57 -0500; author: davidc; state: Exp; lines: +4 -9;
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`Changed the routine that determines the master-ness of the current path to use
`SOS_ISAMPLECLOCK::IsSameAs, instead of a simple pointer comparison.
`----------------------------
`revision 1.22
`date: 2002-05-09 12:28:34 -0500; author: davidc; state: Exp; lines: +24 -7;
`Added comments.
`----------------------------
`revision 1.21
`date: 2002-05-09 00:48:38 -0500; author: davidc; state: Exp; lines: +172 -18;
`Changed the "Encode" edge to send master clock updates forward iff it's in a slave path and to
`request that render clock updates get sent backward iff it's in a master path.
`
`Changed the "Decode" edge to set the master clock to refer to the render clock if it's in a path
`and to set the master clock to refer to a different clock if it's in a slave path.
`
`The main is that, for all master sinks, the master clock and the render clock refer to the same
`object. This eliminates the latency between when the master sink updates its render clock and
`when its master clock is updated. It also fixes a performance inconsistency between when the
`master sink is on a different machine than the source and when the master sink is on the same
`machine as the source.
`----------------------------
`revision 1.20
`date: 2002-05-08 23:27:15 -0500; author: davidc; state: Exp; lines: +217 -170;
`Added the "Encode" edge, which will eventually take the place of both the "MasterEncode"
`edge and the "SlaveEncode" edge. It is currently just a place holder and is functionally
`equivalent to the "SlaveEncode" edge.
`
`Reorganized the way edges are registered to use a table-driven method. This simplifies the
`error handling in the SOS_BEAD_INITIALIZE routine.
`
`Moved the logic that reads the clocks from the path to the path init routines. This makes is so
`that the message handlers can assume that the clocks have already been read. (Before, this
`logic was in the path init routines and the message handlers).
`
`Removed some dead code, including the timer code that sends on the loopback and the
`"RenderNeeded" boolean.
`----------------------------
`revision 1.19
`date: 2002-05-08 22:04:05 -0500; author: davidc; state: Exp; lines: +5 -5;
`Renamed the "Encode" edge of the ClockSync bead to "SlaveEncode".
`
`This is the first phase in merging the functionality of the "Encode" and "MasterEncode" edge.
`This will allow me to add the new edge as the "Encode" edge without having to port every
`package to use the new edge.
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`----------------------------
`revision 1.18
`date: 2002-05-01 19:04:49 -0500; author: davidc; state: Exp; lines: +123 -118;
`Added a check that, if a message that arrives at the ClockSync[decode] that has a specified
`length that is larger than the maximum possible length, the packet is dropped.
`
`This fixes defect #123, which caused the stack to get munged when the specified length was
`longer than MAX_VARIABLE_LENGTH.
`----------------------------
`revision 1.17
`date: 2002-04-25 12:25:15 -0500; author: davidc; state: Exp; lines: +86 -6;
`Filled in the file bannar comment.
`----------------------------
`revision 1.16
`date: 2002-04-03 00:21:30 -0600; author: davidc; state: Exp; lines: +3 -4;
`Added static keyword to eliminate unnecessary namespace pollution.
`----------------------------
`revision 1.15
`date: 2002-04-03 00:04:28 -0600; author: davidc; state: Exp; lines: +2 -1;
`Added static keyword to eliminate unnecessary namespace pollution.
`----------------------------
`revision 1.14
`date: 2002-02-07 23:12:26 -0600; author: davidc; state: Exp; lines: +2 -2;
`added missing newline to "Could not set bead schema" DEBUGOUT
`----------------------------
`revision 1.13
`date: 2001-11-29 19:01:43 -0600; author: scottwb; state: Exp; lines: +2 -2;
`Fixed leak of ClockSync's ReturnPath.
`----------------------------
`revision 1.12
`date: 2001-11-08 20:46:36 -0600; author: guyc; state: Exp; lines: +70 -1;
`Added new edge "master" which sets the RenderClock to a
`reference to the MasterClock. This should replace the current
`use of sampleclock:MASTER which creates problems because they
`are globally scoped.
`----------------------------
`revision 1.11
`date: 2001-10-23 12:11:25 -0500; author: guyc; state: Exp; lines: +2 -3;
`Fixed session cleanup problem leading to leak of
`sample clocks.
`----------------------------
`revision 1.10
`date: 2001-10-22 18:37:11 -0500; author: guyc; state: Exp; lines: +26 -101;
`Changes to ensure a session with both encode and decode
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`edges uses the right path context clocks. Previously the
`returning decode edge created new clocks instead of propagating
`the information into the existing clocks.
`NOTE - this bead now NEVER creates its own clocks, which means
`any existing rules using this bead will now need to have master
`and render clocks added as seeds.
`----------------------------
`revision 1.9
`date: 2001-10-19 19:52:56 -0500; author: guyc; state: Exp; lines: +184 -104;
`Finished reverse-propagation of clocks to enable remote
`master clocks. Now can optionally propagate render clock
`backwards over the network.
`----------------------------
`revision 1.8
`date: 2001-10-04 16:11:38 -0500; author: guyc; state: Exp; lines: +41 -14;
`Changed to no try to encode clock values which are
`unavailable. This prevents a non-initialized master
`clock value of 0 from being propogated across the network
`if it has not yet been initialized by the time a packet
`passes our way.
`----------------------------
`revision 1.7
`date: 2001-10-02 16:09:49 -0500; author: guyc; state: Exp; lines: +11 -9;
`Don't update render clock on encode edge by default.
`----------------------------
`revision 1.6
`date: 2001-09-21 18:50:01 -0500; author: guyc; state: Exp; lines: +2 -2;
`Fixed sign warning.
`----------------------------
`revision 1.5
`date: 2001-09-21 18:47:37 -0500; author: guyc; state: Exp; lines: +441 -154;
`Added changes to support reverse-propogation of clocks.
`(incomplete/untested)
`----------------------------
`revision 1.4
`date: 2001-09-11 15:59:55 -0500; author: guyc; state: Exp; lines: +8 -1;
`Added additional debug detail
`----------------------------
`revision 1.3
`date: 2001-09-10 15:19:09 -0500; author: guyc; state: Exp; lines: +2 -2;
`Fixed offset sign error.
`----------------------------
`revision 1.2
`date: 2001-09-10 13:50:52 -0500; author: guyc; state: Exp; lines: +7 -13;
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`Removed some dead code.
`----------------------------
`revision 1.1
`date: 2001-09-10 13:50:05 -0500; author: guyc; state: Exp;
`Major additions to split clocksync into a second bead,
`and into a separate source file.
`=============================================================================
`
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