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added Python syntax version of cycles

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This commit is contained in:
Darren Ranalli 2008-08-26 23:06:34 +00:00
parent 7cb642fc2f
commit b8523833f7
1 changed files with 88 additions and 1 deletions
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89
direct/src/showbase/GarbageReport.py
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@ -6,6 +6,7 @@ from direct.directnotify.DirectNotifyGlobal import directNotify
from direct.showbase.PythonUtil import gcDebugOn, safeRepr, fastRepr, printListEnumGen, printNumberedTypesGen
from direct.showbase.Job import Job
import gc
import types
class FakeObject:
pass
@ -89,6 +90,7 @@ class GarbageReport(Job):
self.referentsByNumber = {}
self.cycles = []
self.cyclesBySyntax = []
self.uniqueCycleSets = set()
self.cycleIds = set()
@ -131,6 +133,85 @@ class GarbageReport(Job):
for newCycles in self._getCycles(i, self.uniqueCycleSets):
yield None
self.cycles.extend(newCycles)
# create a representation of the cycle in human-readable form
newCyclesBySyntax = []
for cycle in newCycles:
cycleBySyntax = ''
objs = []
# leave off the last index, it's a repeat of the first index
for index in cycle[:-1]:
objs.append(self.garbage[index])
yield None
# make the list repeat so we can safely iterate off the end
numObjs = len(objs) - 1
objs.extend(objs)
# state variables for our loop below
numToSkip = 0
objAlreadyRepresented = False
# if cycle starts off with an instance dict, start with the instance instead
startIndex = 0
endIndex = numObjs
if type(objs[-1]) is types.InstanceType:
startIndex = -1
endIndex = numObjs - 1
for index in xrange(startIndex, endIndex):
if numToSkip:
numToSkip -= 1
continue
obj = objs[index]
if type(obj) is types.InstanceType:
if not objAlreadyRepresented:
cycleBySyntax += '%s' % obj.__class__.__name__
cycleBySyntax += '.'
# skip past the instance dict and get the member obj
numToSkip += 1
member = objs[index+2]
for key, value in obj.__dict__.iteritems():
if value is member:
break
yield None
else:
key = '<unknown member name>'
cycleBySyntax += '%s' % key
objAlreadyRepresented = True
elif type(obj) is types.DictType:
cycleBySyntax += '{'
# get object referred to by dict
val = objs[index+1]
for key, value in obj.iteritems():
if value is val:
break
yield None
else:
key = '<unknown key>'
cycleBySyntax += '%s}' % fastRepr(key)
objAlreadyRepresented = True
elif type(obj) in (types.TupleType, types.ListType):
brackets = {
types.TupleType: '()',
types.ListType: '[]',
}[type(obj)]
# get object being referenced by container
nextObj = objs[index+1]
cycleBySyntax += brackets[0]
for index in xrange(len(obj)):
if obj[index] is nextObj:
index = str(index)
break
yield None
else:
index = '<unknown index>'
cycleBySyntax += '%s%s' % (index, brackets[1])
objAlreadyRepresented = True
else:
cycleBySyntax += '%s->' % itype(obj)
objAlreadyRepresented = False
newCyclesBySyntax.append(cycleBySyntax)
yield None
self.cyclesBySyntax.extend(newCyclesBySyntax)
# if we're not doing a full report, add this cycle's IDs to the master set
if not self._args.fullReport:
for cycle in newCycles:
@ -194,11 +275,17 @@ class GarbageReport(Job):
s.append(format % (idx, itype(self.garbage[idx]), objStr))
if self._args.findCycles:
s.append('===== Garbage Cycles =====')
s.append('===== Garbage Cycles By Index =====')
for i in xrange(len(self.cycles)):
yield None
s.append('%s' % self.cycles[i])
if self._args.findCycles:
s.append('===== Garbage Cycles By Python Syntax =====')
for i in xrange(len(self.cyclesBySyntax)):
yield None
s.append('%s' % self.cyclesBySyntax[i])
if self._args.fullReport:
format = '%0' + '%s' % digits + 'i:%s'
s.append('===== Referrers By Number (what is referring to garbage item?) =====')