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flow/network: fix handling of edges with subrecords at both ends

This commit is contained in:
Sebastien Bourdeauducq 2012-06-17 18:31:45 +02:00
parent 75d569a12c
commit 66ac62d0bb
1 changed files with 9 additions and 9 deletions
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18
migen/flow/network.py
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@ -75,12 +75,12 @@ class DataFlowGraph(MultiDiGraph):
# Returns a dictionary
# source -> [sink1, ..., sinkn]
# source element is a (node, endpoint) pair.
# sink elements are (node, endpoint, source subrecord) triples.
# sink elements are (node, endpoint, source subrecord, sink subrecord) triples.
def _source_to_sinks(self):
d = dict()
for u, v, data in self.edges_iter(data=True):
el_src = (u, data["source"])
el_dst = (v, data["sink"], data["source_subr"])
el_dst = (v, data["sink"], data["source_subr"], data["sink_subr"])
if el_src in d:
d[el_src].append(el_dst)
else:
@ -90,11 +90,11 @@ class DataFlowGraph(MultiDiGraph):
# Returns a dictionary
# sink -> [source1, ... sourcen]
# sink element is a (node, endpoint) pair.
# source elements are (node, endpoint, sink subrecord) triples.
# source elements are (node, endpoint, sink subrecord, source subrecord) triples.
def _sink_to_sources(self):
d = dict()
for u, v, data in self.edges_iter(data=True):
el_src = (u, data["source"], data["sink_subr"])
el_src = (u, data["source"], data["sink_subr"], data["source_subr"])
el_dst = (v, data["sink"])
if el_dst in d:
d[el_dst].append(el_src)
@ -125,25 +125,25 @@ class DataFlowGraph(MultiDiGraph):
if len(sources) > 1 or sources[0][2] is not None:
# build combinator
# "layout" is filled in during instantiation
subrecords = [dst_subrecord for src_node, src_endpoint, dst_subrecord in sources]
subrecords = [dst_subrecord for src_node, src_endpoint, dst_subrecord, src_subrecord in sources]
combinator = ActorNode(plumbing.Combinator, {"subrecords": subrecords})
# disconnect source1 -> sink ... sourcen -> sink
# connect source1 -> combinator_sink1 ... sourcen -> combinator_sinkn
for n, (src_node, src_endpoint, dst_subrecord) in enumerate(sources):
for n, (src_node, src_endpoint, dst_subrecord, src_subrecord) in enumerate(sources):
self.del_connections(src_node, dst_node,
{"source": src_endpoint, "sink": dst_endpoint})
self.add_connection(src_node, combinator,
src_endpoint, "sink{0}".format(n))
src_endpoint, "sink{0}".format(n), source_subr=src_subrecord)
# connect combinator_source -> sink
self.add_connection(combinator, dst_node, "source", dst_endpoint)
# Insert splitters.
for (src_node, src_endpoint), sinks in self._source_to_sinks().items():
if len(sinks) > 1 or sinks[0][2] is not None:
subrecords = [src_subrecord for dst_node, dst_endpoint, src_subrecord in sinks]
subrecords = [src_subrecord for dst_node, dst_endpoint, src_subrecord, dst_subrecord in sinks]
splitter = ActorNode(plumbing.Splitter, {"subrecords": subrecords})
# disconnect source -> sink1 ... source -> sinkn
# connect splitter_source1 -> sink1 ... splitter_sourcen -> sinkn
for n, (dst_node, dst_endpoint, src_subrecord) in enumerate(sinks):
for n, (dst_node, dst_endpoint, src_subrecord, dst_subrecord) in enumerate(sinks):
self.del_connections(src_node, dst_node,
{"source": src_endpoint, "sink": dst_endpoint})
self.add_connection(splitter, dst_node,