##// END OF EJS Templates
wireprotov2: handle sender protocol settings frames...
wireprotov2: handle sender protocol settings frames We teach the server reactor to handle the optional sender protocol settings frames, which can only be sent at the beginning of frame exchange. Right now, we simply decode the data and record the sender protocol settings on the server reactor instance: we don't yet do anything meaningful with the data. Differential Revision: https://phab.mercurial-scm.org/D4916

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mpatch.py
48 lines | 1.4 KiB | text/x-python | PythonLexer
# mpatch.py - CFFI implementation of mpatch.c
#
# Copyright 2016 Maciej Fijalkowski <fijall@gmail.com>
#
# 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 ..pure.mpatch import *
from ..pure.mpatch import mpatchError # silence pyflakes
from . import _mpatch
ffi = _mpatch.ffi
lib = _mpatch.lib
@ffi.def_extern()
def cffi_get_next_item(arg, pos):
all, bins = ffi.from_handle(arg)
container = ffi.new("struct mpatch_flist*[1]")
to_pass = ffi.new("char[]", str(bins[pos]))
all.append(to_pass)
r = lib.mpatch_decode(to_pass, len(to_pass) - 1, container)
if r < 0:
return ffi.NULL
return container[0]
def patches(text, bins):
lgt = len(bins)
all = []
if not lgt:
return text
arg = (all, bins)
patch = lib.mpatch_fold(ffi.new_handle(arg),
lib.cffi_get_next_item, 0, lgt)
if not patch:
raise mpatchError("cannot decode chunk")
outlen = lib.mpatch_calcsize(len(text), patch)
if outlen < 0:
lib.mpatch_lfree(patch)
raise mpatchError("inconsistency detected")
buf = ffi.new("char[]", outlen)
if lib.mpatch_apply(buf, text, len(text), patch) < 0:
lib.mpatch_lfree(patch)
raise mpatchError("error applying patches")
res = ffi.buffer(buf, outlen)[:]
lib.mpatch_lfree(patch)
return res