Mercurial > hg
view tests/dumbhttp.py @ 50242:379a78001d8e stable
dirstate: set identity whenever we read the dirstate's v2 docket
The docket can be loaded outside of a full read (for exemple when
pre-fetching parents), so the current code would read/set the identity
after loading the data, opening a race condition:
A0: first process docket is read
B0: other process appends new data to the dirstate (and changes the docket)
A1: first process sets the identity (based on pre-B content, but with post-B identity)
A1: first process loads the dirstatemap from the data file
A1: first process does not detect the race and overwrites the update from B.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 01 Mar 2023 02:38:20 +0100 |
parents | 642e31cb55f0 |
children | 493034cc3265 |
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#!/usr/bin/env python """ Small and dumb HTTP server for use in tests. """ import optparse import os import signal import socket import sys from mercurial import ( encoding, pycompat, server, util, ) httpserver = util.httpserver OptionParser = optparse.OptionParser if os.environ.get('HGIPV6', '0') == '1': class simplehttpserver(httpserver.httpserver): address_family = socket.AF_INET6 else: simplehttpserver = httpserver.httpserver class _httprequesthandler(httpserver.simplehttprequesthandler): def log_message(self, format, *args): httpserver.simplehttprequesthandler.log_message(self, format, *args) sys.stderr.flush() class simplehttpservice: def __init__(self, host, port): self.address = (host, port) def init(self): self.httpd = simplehttpserver(self.address, _httprequesthandler) def run(self): self.httpd.serve_forever() if __name__ == '__main__': parser = OptionParser() parser.add_option( '-p', '--port', dest='port', type='int', default=8000, help='TCP port to listen on', metavar='PORT', ) parser.add_option( '-H', '--host', dest='host', default='localhost', help='hostname or IP to listen on', metavar='HOST', ) parser.add_option('--logfile', help='file name of access/error log') parser.add_option( '--pid', dest='pid', help='file name where the PID of the server is stored', ) parser.add_option( '-f', '--foreground', dest='foreground', action='store_true', help='do not start the HTTP server in the background', ) parser.add_option('--daemon-postexec', action='append') (options, args) = parser.parse_args() signal.signal(signal.SIGTERM, lambda x, y: sys.exit(0)) if options.foreground and options.logfile: parser.error( "options --logfile and --foreground are mutually " "exclusive" ) if options.foreground and options.pid: parser.error("options --pid and --foreground are mutually exclusive") opts = { b'pid_file': options.pid, b'daemon': not options.foreground, b'daemon_postexec': pycompat.rapply( encoding.strtolocal, options.daemon_postexec ), } service = simplehttpservice(options.host, options.port) runargs = [sys.executable, __file__] + sys.argv[1:] runargs = [pycompat.fsencode(a) for a in runargs] server.runservice( opts, initfn=service.init, runfn=service.run, logfile=options.logfile, runargs=runargs, )