| #!/usr/bin/env python |
| # Copyright 2015, Google Inc. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| """Manage TCP ports for unit tests; started by run_tests.py""" |
| |
| import argparse |
| import BaseHTTPServer |
| import hashlib |
| import os |
| import socket |
| import sys |
| import time |
| |
| argp = argparse.ArgumentParser(description='Server for httpcli_test') |
| argp.add_argument('-p', '--port', default=12345, type=int) |
| args = argp.parse_args() |
| |
| print 'port server running on port %d' % args.port |
| |
| pool = [] |
| in_use = {} |
| |
| with open(sys.argv[0]) as f: |
| _MY_VERSION = hashlib.sha1(f.read()).hexdigest() |
| |
| |
| def refill_pool(): |
| """Scan for ports not marked for being in use""" |
| for i in range(10000, 65000): |
| if len(pool) > 100: break |
| if i in in_use: |
| age = time.time() - in_use[i] |
| if age < 600: |
| continue |
| del in_use[i] |
| s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| try: |
| s.bind(('localhost', i)) |
| pool.append(i) |
| except: |
| pass # we really don't care about failures |
| finally: |
| s.close() |
| |
| |
| def allocate_port(): |
| global pool |
| global in_use |
| if not pool: |
| refill_pool() |
| port = pool[0] |
| pool = pool[1:] |
| in_use[port] = time.time() |
| return port |
| |
| |
| class Handler(BaseHTTPServer.BaseHTTPRequestHandler): |
| |
| def do_GET(self): |
| if self.path == '/get': |
| # allocate a new port, it will stay bound for ten minutes and until |
| # it's unused |
| self.send_response(200) |
| self.send_header('Content-Type', 'text/plain') |
| self.end_headers() |
| p = allocate_port() |
| self.log_message('allocated port %d' % p) |
| self.wfile.write('%d' % p) |
| elif self.path == '/version_and_pid': |
| # fetch a version string and the current process pid |
| self.send_response(200) |
| self.send_header('Content-Type', 'text/plain') |
| self.end_headers() |
| self.wfile.write('%s+%d' % (_MY_VERSION, os.getpid())) |
| |
| |
| BaseHTTPServer.HTTPServer(('', args.port), Handler).serve_forever() |
| |