flagprocessors: add a `sidedata` parameters to _processflagswrite
To read sidedata using flagprocessors, we need flag processors to store them. So
we pass this information to the flag processing layer.
Differential Revision: https://phab.mercurial-scm.org/D6815
# connectionpool.py - class for pooling peer connections for reuse
#
# Copyright 2017 Facebook, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
from mercurial import (
extensions,
hg,
sshpeer,
util,
)
_sshv1peer = sshpeer.sshv1peer
class connectionpool(object):
def __init__(self, repo):
self._repo = repo
self._pool = dict()
def get(self, path):
pathpool = self._pool.get(path)
if pathpool is None:
pathpool = list()
self._pool[path] = pathpool
conn = None
if len(pathpool) > 0:
try:
conn = pathpool.pop()
peer = conn.peer
# If the connection has died, drop it
if isinstance(peer, _sshv1peer):
if peer._subprocess.poll() is not None:
conn = None
except IndexError:
pass
if conn is None:
def _cleanup(orig):
# close pipee first so peer.cleanup reading it won't deadlock,
# if there are other processes with pipeo open (i.e. us).
peer = orig.im_self
if util.safehasattr(peer, 'pipee'):
peer.pipee.close()
return orig()
peer = hg.peer(self._repo.ui, {}, path)
if util.safehasattr(peer, 'cleanup'):
extensions.wrapfunction(peer, 'cleanup', _cleanup)
conn = connection(pathpool, peer)
return conn
def close(self):
for pathpool in self._pool.itervalues():
for conn in pathpool:
conn.close()
del pathpool[:]
class connection(object):
def __init__(self, pool, peer):
self._pool = pool
self.peer = peer
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
# Only add the connection back to the pool if there was no exception,
# since an exception could mean the connection is not in a reusable
# state.
if type is None:
self._pool.append(self)
else:
self.close()
def close(self):
if util.safehasattr(self.peer, 'cleanup'):
self.peer.cleanup()