def cached_comments_children(context, spage):
def _ck():
return ("commentkids", spage.path)
r = context.getcache(_ck())
if r is not None:
return r
# We avoid a proliferation of small cache entries by skipping
# the disk cache entirely for single-entry/page requests.
if not rendcache.gen_cache_on(context.cfg) or spage.type == "file":
r = list(context.model.comments_children(spage))
context.setcache(_ck(), r)
return r
r = rendcache.get_flagged(context, "comments-kids", spage.path,
"comments-updated")
if r:
context.setcache(_ck(), r)
return r
r = list(context.model.comments_children(spage))
v = rendcache.Validator()
# TODO: actual validator? What would it be?
rendcache.store_gen(context, "comments-kids", spage.path,
r, v)
context.setcache(_ck(), r)
return r
def cached_comments_children(context, spage):
def _ck():
return ("commentkids", spage.path)
r = context.getcache(_ck())
if r is not None:
return r
# We avoid a proliferation of small cache entries by skipping
# the disk cache entirely for single-entry/page requests.
if not rendcache.gen_cache_on(context.cfg) or spage.type == "file":
r = list(context.model.comments_children(spage))
context.setcache(_ck(), r)
return r
r = rendcache.get_flagged(context, "comments-kids", spage.path,
"comments-updated")
if r:
context.setcache(_ck(), r)
return r
r = list(context.model.comments_children(spage))
v = rendcache.Validator()
# TODO: actual validator? What would it be?
rendcache.store_gen(context, "comments-kids", spage.path, r, v)
context.setcache(_ck(), r)
return r
def _set_disk_cpc(self, page, plist):
if not rendcache.cache_on(self.cfg) or page.virtual() or \
page.type != "dir":
return
v = rendcache.Validator()
v.add_mtime(page)
ds = {page.path: True}
# note that Storage .children() (and thus .descendants()
# et al) never returns directories. This is a bit
# regrettable.
for ts, ppath in plist:
pdir = utils.parent_path(ppath)
if pdir in ds:
continue
ds[pdir] = True
v.add_mtime(self.model.get_page(pdir))
rendcache.store_gen(self, "page-kids", page.path, plist, v)
def _set_disk_cpc(self, page, plist):
if not rendcache.cache_on(self.cfg) or page.virtual() or \
page.type != "dir":
return
v = rendcache.Validator()
v.add_mtime(page)
ds = {page.path: True}
# note that Storage .children() (and thus .descendants()
# et al) never returns directories. This is a bit
# regrettable.
for ts, ppath in plist:
pdir = utils.parent_path(ppath)
if pdir in ds:
continue
ds[pdir] = True
v.add_mtime(self.model.get_page(pdir))
rendcache.store_gen(self, "page-kids", page.path, plist, v)
def gen_pnpages(context, vdir):
# Disabled? Skip entirely.
if not rendcache.gen_cache_on(context.cfg):
return gen_pnp_direct(context, vdir)
# Even if we get a cache hit, we must super-validate it. We do so
# by checking that the timestamps of ourselves and our next and
# previous links are the same as in the list.
res = rendcache.fetch_gen(context, vdir.path, 'pnc-kids')
if res:
r = steppage_pos(context, context.page.path, res)
if r and \
valid_pos(context, res, r[0]) and \
valid_pos(context, res, r[1]) and \
valid_pos(context, res, r[2]):
return pages_from_pos(context, res, r)
# Miss; generate.
r = gen_pnp_direct(context, vdir)
if not r:
return r
dl = r[2]
# The validator for the list is somewhat big; it is the timestamp
# of every directory in the list, explicitly including the root
# of the list. Unfortunately we have to manually deduce this from
# the files in the list, which means that we can accidentally
# omit a directory that currently has no files. This is really
# a fault of the cache_page_children() approach, but meh.
v = rendcache.Validator()
ds = {}
v.add_mtime(vdir)
ds[vdir.path] = True
for ts, ppath in dl:
pdir = utils.parent_path(ppath)
if pdir in ds:
continue
ds[pdir] = True
v.add_mtime(context.model.get_page(pdir))
rendcache.store_gen(context, 'pnc-kids', vdir.path, dl, v)
return r
