Wait on a pipe for the test server to start up

net/tools/testserver/testserver.py

 #!/usr/bin/python2.4
 # Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This is a simple HTTP server used for testing Chrome.
 
 It supports several test URLs, as specified by the handlers in TestPageHandler.
 It defaults to living on localhost:8888.
 It can use https if you specify the flag --https=CERT where CERT is the path
@@ skipping 21 matching lines @@
 import tlslite
 import tlslite.api
 
 try:
   import hashlib
   _new_md5 = hashlib.md5
 except ImportError:
   import md5
   _new_md5 = md5.new
 
+if sys.platform == 'win32':
+  import msvcrt
+
 SERVER_HTTP = 0
 SERVER_FTP = 1
 
 debug_output = sys.stderr
 def debug(str):
   debug_output.write(str + "\n")
   debug_output.flush()
 
 class StoppableHTTPServer(BaseHTTPServer.HTTPServer):
   """This is a specialization of of BaseHTTPServer to allow it
@@ skipping 1171 matching lines @@
 
     # Define a customized banner (string returned when client connects)
     ftp_handler.banner = ("pyftpdlib %s based ftpd ready." %
                           pyftpdlib.ftpserver.__ver__)
 
     # Instantiate FTP server class and listen to 127.0.0.1:port
     address = ('127.0.0.1', port)
     server = pyftpdlib.ftpserver.FTPServer(address, ftp_handler)
     print 'FTP server started on port %d...' % port
 
+  # Notify the parent that we've started. (BaseServer subclasses
+  # bind their sockets on construction.)
+  if options.startup_pipe is not None:
+    if sys.platform == 'win32':
+      fd = msvcrt.open_osfhandle(options.startup_pipe, 0)
+    else:
+      fd = options.startup_pipe
+    startup_pipe = os.fdopen(fd, "w")
+    startup_pipe.write("READY")
+    startup_pipe.close()
+
   try:
     server.serve_forever()
   except KeyboardInterrupt:
     print 'shutting down server'
     server.stop = True
 
 if __name__ == '__main__':
   option_parser = optparse.OptionParser()
   option_parser.add_option("-f", '--ftp', action='store_const',
                            const=SERVER_FTP, default=SERVER_HTTP,
@@ skipping 13 matching lines @@
                            help='Specify that the client certificate request '
                            'should indicate that it supports the CA contained '
                            'in the specified certificate file')
   option_parser.add_option('', '--file-root-url', default='/files/',
                            help='Specify a root URL for files served.')
   option_parser.add_option('', '--never-die', default=False,
                            action="store_true",
                            help='Prevent the server from dying when visiting '
                            'a /kill URL. Useful for manually running some '
                            'tests.')
+  option_parser.add_option('', '--startup-pipe', type='int',
+                           dest='startup_pipe',
+                           help='File handle of pipe to parent process')
   options, args = option_parser.parse_args()
 
   sys.exit(main(options, args))