view hgext/inotify/common.py @ 18263:9aa6bee6e9f9

subrepo: add subrepo property to SubrepoAbort exceptions

This new property contains the path of the subrepo that generated the exception.
This information can then be used by GUI tools such as TortoiseHg.

# server.py - inotify common protocol code
#
# Copyright 2006, 2007, 2008 Bryan O'Sullivan <[e-mail]>
# Copyright 2007, 2008 Brendan Cully <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

import cStringIO, socket, struct

"""
  Protocol between inotify clients and server:

  Client sending query:
  1) send protocol version number
  2) send query type (string, 4 letters long)
  3) send query parameters:
     - For STAT, N+1 \0-separated strings:
        1) N different names that need checking
        2) 1 string containing all the status types to match
     - No parameter needed for DBUG

  Server sending query answer:
  1) send protocol version number
  2) send query type
  3) send struct.pack'ed headers describing the length of the content:
      e.g. for STAT, receive 9 integers describing the length of the
      9 \0-separated string lists to be read:
       * one file list for each lmar!?ic status type
       * one list containing the directories visited during lookup

"""

version = 3

resphdrfmts = {
    'STAT': '>lllllllll', # status requests
    'DBUG': '>l'          # debugging queries
}
resphdrsizes = dict((k, struct.calcsize(v))
                    for k, v in resphdrfmts.iteritems())

def recvcs(sock):
    cs = cStringIO.StringIO()
    s = True
    try:
        while s:
            s = sock.recv(65536)
            cs.write(s)
    finally:
        sock.shutdown(socket.SHUT_RD)
    cs.seek(0)
    return cs