X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=grc%2Fpython%2FPort.py;fp=grc%2Fpython%2FPort.py;h=6965371df8a9e922dbeb808d78da53bf93c81a59;hb=35e43e8d8c271e6842191cac3fc3f2f88a861183;hp=5a2b047f0ef05c4017b5ddc447fd1001a141efb9;hpb=ea29b08aeb54227e6628f655ccfdb96fe4d8c378;p=debian%2Fgnuradio diff --git a/grc/python/Port.py b/grc/python/Port.py index 5a2b047f..6965371d 100644 --- a/grc/python/Port.py +++ b/grc/python/Port.py @@ -18,32 +18,68 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA """ from .. base.Port import Port as _Port +from .. gui.Port import Port as _GUIPort import Constants -class Port(_Port): - - ##possible port types - TYPES = ['complex', 'float', 'int', 'short', 'byte'] - - def __init__(self, block, n): +def _get_source_from_virtual_sink_port(vsp): + """ + Resolve the source port that is connected to the given virtual sink port. + Use the get source from virtual source to recursively resolve subsequent ports. + """ + try: return _get_source_from_virtual_source_port( + vsp.get_enabled_connections()[0].get_source()) + except: raise Exception, 'Could not resolve source for virtual sink port %s'%vsp + +def _get_source_from_virtual_source_port(vsp, traversed=[]): + """ + Recursively resolve source ports over the virtual connections. + Keep track of traversed sources to avoid recursive loops. + """ + if not vsp.get_parent().is_virtual_source(): return vsp + if vsp in traversed: raise Exception, 'Loop found when resolving virtual source %s'%vsp + try: return _get_source_from_virtual_source_port( + _get_source_from_virtual_sink_port( + filter(#get all virtual sinks with a matching stream id + lambda vs: vs.get_param('stream_id').get_value() == vsp.get_parent().get_param('stream_id').get_value(), + filter(#get all enabled blocks that are also virtual sinks + lambda b: b.is_virtual_sink(), + vsp.get_parent().get_parent().get_enabled_blocks(), + ), + )[0].get_sinks()[0] + ), traversed + [vsp], + ) + except: raise Exception, 'Could not resolve source for virtual source port %s'%vsp + +class Port(_Port, _GUIPort): + + def __init__(self, block, n, dir): """ Make a new port from nested data. @param block the parent element @param n the nested odict - @return a new port + @param dir the direction """ - vlen = n.find('vlen') or '1' - nports = n.find('nports') or '' - optional = n.find('optional') or '' + self._n = n + if n['type'] == 'msg': n['key'] = 'msg' + if dir == 'source' and not n.find('key'): + n['key'] = str(block._source_count) + block._source_count += 1 + if dir == 'sink' and not n.find('key'): + n['key'] = str(block._sink_count) + block._sink_count += 1 #build the port _Port.__init__( self, block=block, n=n, + dir=dir, ) - self._nports = nports - self._vlen = vlen - self._optional = bool(optional) + _GUIPort.__init__(self) + self._nports = n.find('nports') or '' + self._vlen = n.find('vlen') or '' + self._optional = bool(n.find('optional')) + + def get_types(self): return ('complex', 'float', 'int', 'short', 'byte', 'msg', '') def validate(self): _Port.validate(self) @@ -51,6 +87,30 @@ class Port(_Port): except AssertionError: self.add_error_message('Port is not connected.') try: assert self.is_source() or len(self.get_enabled_connections()) <= 1 except AssertionError: self.add_error_message('Port has too many connections.') + #message port logic + if self.get_type() == 'msg': + try: assert not self.get_nports() + except AssertionError: self.add_error_message('A port of type "msg" cannot have "nports" set.') + try: assert self.get_vlen() == 1 + except AssertionError: self.add_error_message('A port of type "msg" must have a "vlen" of 1.') + + def rewrite(self): + """ + Handle the port cloning for virtual blocks. + """ + _Port.rewrite(self) + if self.get_parent().is_virtual_sink() or self.get_parent().is_virtual_source(): + try: #clone type and vlen + source = self.resolve_virtual_source() + self._type = str(source.get_type()) + self._vlen = str(source.get_vlen()) + except: #reset type and vlen + self._type = '' + self._vlen = '' + + def resolve_virtual_source(self): + if self.get_parent().is_virtual_sink(): return _get_source_from_virtual_sink_port(self) + if self.get_parent().is_virtual_source(): return _get_source_from_virtual_source_port(self) def get_vlen(self): """ @@ -94,6 +154,7 @@ class Port(_Port): 'int': Constants.INT_COLOR_SPEC, 'short': Constants.SHORT_COLOR_SPEC, 'byte': Constants.BYTE_COLOR_SPEC, + 'msg': Constants.MSG_COLOR_SPEC, }[self.get_type()] return {#vlen is non 1 'complex': Constants.COMPLEX_VECTOR_COLOR_SPEC, @@ -104,26 +165,7 @@ class Port(_Port): }[self.get_type()] except: return _Port.get_color(self) -class Source(Port): - - def __init__(self, block, n): - self._n = n #save n - #key is port index - n['key'] = str(block._source_count) - block._source_count = block._source_count + 1 - Port.__init__(self, block, n) - - def __del__(self): - self.get_parent()._source_count = self.get_parent()._source_count - 1 - -class Sink(Port): - - def __init__(self, block, n): - self._n = n #save n - #key is port index - n['key'] = str(block._sink_count) - block._sink_count = block._sink_count + 1 - Port.__init__(self, block, n) - - def __del__(self): - self.get_parent()._sink_count = self.get_parent()._sink_count - 1 + def copy(self, new_key=None): + n = self._n.copy() + if new_key: n['key'] = new_key + return self.__class__(self.get_parent(), n, self._dir)