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-rw-r--r--pym/portage/dbapi/vartree.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
index 137e22f26..0be5632c1 100644
--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
@@ -48,6 +48,7 @@ from portage import _unicode_encode
from portage.cache.mappings import slot_dict_class
import codecs
+from collections import deque
import re, shutil, stat, errno, copy, subprocess
import logging
import os as _os
@@ -1618,12 +1619,17 @@ class vardbapi(dbapi):
base_names = self._vardb._aux_cache["owners"]["base_names"]
dblink_cache = {}
+ dblink_fifo = deque()
def dblink(cpv):
x = dblink_cache.get(cpv)
if x is None:
+ if len(dblink_fifo) >= 25:
+ # Ensure that we don't run out of memory.
+ del dblink_cache[dblink_fifo.popleft().mycpv]
x = self._vardb._dblink(cpv)
dblink_cache[cpv] = x
+ dblink_fifo.append(x)
return x
for path in path_iter: