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Track reachability in sources module

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Add new flag to source struct to indicate when source is selectable
(packets with good headers are received) and use a reachability
register for last 8 samples instead of the reachable flag. Source
drivers now provide only reachability updates.
This commit is contained in:
Miroslav Lichvar
2010-12-16 16:01:29 +01:00
parent ff69e86559
commit 0c4968ec51
4 changed files with 65 additions and 39 deletions
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10
sources.h
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@@ -120,11 +120,17 @@ extern void SRC_AccumulateSample(SRC_Instance instance, struct timeval *sample_t
/* This routine indicates that packets with valid headers are being
received from the designated source */
extern void SRC_SetReachable(SRC_Instance instance);
extern void SRC_SetSelectable(SRC_Instance instance);
/* This routine indicates that we are no longer receiving packets with
valid headers from the designated source */
extern void SRC_UnsetReachable(SRC_Instance instance);
extern void SRC_UnsetSelectable(SRC_Instance instance);
/* This routine updates the reachability register */
extern void SRC_UpdateReachability(SRC_Instance inst, int reachable);
/* This routine marks the source unreachable */
extern void SRC_ResetReachability(SRC_Instance inst);
/* This routine is used to select the best source from amongst those
we currently have valid data on, and use it as the tracking base