Mercurial > hg
annotate mercurial/keepalive.py @ 20629:277dc5f27310
cmdserver: recreate mq object on runcommand in case queue path was changed
repo.mq needs to be recreated after queue path change. Since there is little
benefit to keep invalidated mq object, it always delete repo.mq.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Mon, 03 Mar 2014 19:41:30 +0900 |
parents | 681f7b9213a4 |
children | 232d437af120 |
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1 # This library is free software; you can redistribute it and/or |
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2 # modify it under the terms of the GNU Lesser General Public |
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3 # License as published by the Free Software Foundation; either |
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4 # version 2.1 of the License, or (at your option) any later version. |
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5 # |
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6 # This library is distributed in the hope that it will be useful, |
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7 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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9 # Lesser General Public License for more details. |
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10 # |
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11 # You should have received a copy of the GNU Lesser General Public |
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12 # License along with this library; if not, see |
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13 # <http://www.gnu.org/licenses/>. |
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14 |
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15 # This file is part of urlgrabber, a high-level cross-protocol url-grabber |
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16 # Copyright 2002-2004 Michael D. Stenner, Ryan Tomayko |
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17 |
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18 # Modified by Benoit Boissinot: |
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19 # - fix for digest auth (inspired from urllib2.py @ Python v2.4) |
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20 # Modified by Dirkjan Ochtman: |
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21 # - import md5 function from a local util module |
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23 # - moved md5 function from local util module to this module | |
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24 # Modified by Augie Fackler: |
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25 # - add safesend method and use it to prevent broken pipe errors |
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26 # on large POST requests |
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27 |
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28 """An HTTP handler for urllib2 that supports HTTP 1.1 and keepalive. |
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29 |
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30 >>> import urllib2 |
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31 >>> from keepalive import HTTPHandler |
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32 >>> keepalive_handler = HTTPHandler() |
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33 >>> opener = urllib2.build_opener(keepalive_handler) |
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34 >>> urllib2.install_opener(opener) |
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35 >>> |
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36 >>> fo = urllib2.urlopen('http://www.python.org') |
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37 |
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38 If a connection to a given host is requested, and all of the existing |
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39 connections are still in use, another connection will be opened. If |
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40 the handler tries to use an existing connection but it fails in some |
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41 way, it will be closed and removed from the pool. |
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42 |
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43 To remove the handler, simply re-run build_opener with no arguments, and |
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44 install that opener. |
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45 |
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46 You can explicitly close connections by using the close_connection() |
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47 method of the returned file-like object (described below) or you can |
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48 use the handler methods: |
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49 |
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50 close_connection(host) |
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51 close_all() |
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52 open_connections() |
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53 |
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54 NOTE: using the close_connection and close_all methods of the handler |
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55 should be done with care when using multiple threads. |
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56 * there is nothing that prevents another thread from creating new |
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57 connections immediately after connections are closed |
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58 * no checks are done to prevent in-use connections from being closed |
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59 |
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60 >>> keepalive_handler.close_all() |
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61 |
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62 EXTRA ATTRIBUTES AND METHODS |
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63 |
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64 Upon a status of 200, the object returned has a few additional |
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65 attributes and methods, which should not be used if you want to |
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66 remain consistent with the normal urllib2-returned objects: |
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67 |
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68 close_connection() - close the connection to the host |
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69 readlines() - you know, readlines() |
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70 status - the return status (i.e. 404) |
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71 reason - english translation of status (i.e. 'File not found') |
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72 |
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73 If you want the best of both worlds, use this inside an |
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74 AttributeError-catching try: |
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75 |
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76 >>> try: status = fo.status |
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77 >>> except AttributeError: status = None |
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78 |
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79 Unfortunately, these are ONLY there if status == 200, so it's not |
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80 easy to distinguish between non-200 responses. The reason is that |
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81 urllib2 tries to do clever things with error codes 301, 302, 401, |
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82 and 407, and it wraps the object upon return. |
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83 |
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84 For python versions earlier than 2.4, you can avoid this fancy error |
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85 handling by setting the module-level global HANDLE_ERRORS to zero. |
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86 You see, prior to 2.4, it's the HTTP Handler's job to determine what |
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87 to handle specially, and what to just pass up. HANDLE_ERRORS == 0 |
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88 means "pass everything up". In python 2.4, however, this job no |
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89 longer belongs to the HTTP Handler and is now done by a NEW handler, |
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90 HTTPErrorProcessor. Here's the bottom line: |
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91 |
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92 python version < 2.4 |
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93 HANDLE_ERRORS == 1 (default) pass up 200, treat the rest as |
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94 errors |
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95 HANDLE_ERRORS == 0 pass everything up, error processing is |
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96 left to the calling code |
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97 python version >= 2.4 |
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98 HANDLE_ERRORS == 1 pass up 200, treat the rest as errors |
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99 HANDLE_ERRORS == 0 (default) pass everything up, let the |
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100 other handlers (specifically, |
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101 HTTPErrorProcessor) decide what to do |
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102 |
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103 In practice, setting the variable either way makes little difference |
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104 in python 2.4, so for the most consistent behavior across versions, |
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105 you probably just want to use the defaults, which will give you |
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106 exceptions on errors. |
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107 |
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108 """ |
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109 |
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110 # $Id: keepalive.py,v 1.14 2006/04/04 21:00:32 mstenner Exp $ |
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111 |
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112 import errno |
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113 import httplib |
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114 import socket |
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115 import thread |
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116 import urllib2 |
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117 |
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118 DEBUG = None |
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119 |
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120 import sys |
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121 if sys.version_info < (2, 4): |
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122 HANDLE_ERRORS = 1 |
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123 else: HANDLE_ERRORS = 0 |
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124 |
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125 class ConnectionManager(object): |
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126 """ |
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127 The connection manager must be able to: |
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128 * keep track of all existing |
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129 """ |
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130 def __init__(self): |
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131 self._lock = thread.allocate_lock() |
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132 self._hostmap = {} # map hosts to a list of connections |
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133 self._connmap = {} # map connections to host |
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134 self._readymap = {} # map connection to ready state |
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135 |
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136 def add(self, host, connection, ready): |
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137 self._lock.acquire() |
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138 try: |
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139 if host not in self._hostmap: |
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140 self._hostmap[host] = [] |
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141 self._hostmap[host].append(connection) |
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142 self._connmap[connection] = host |
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143 self._readymap[connection] = ready |
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144 finally: |
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145 self._lock.release() |
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146 |
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147 def remove(self, connection): |
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148 self._lock.acquire() |
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149 try: |
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150 try: |
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151 host = self._connmap[connection] |
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152 except KeyError: |
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153 pass |
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154 else: |
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155 del self._connmap[connection] |
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156 del self._readymap[connection] |
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157 self._hostmap[host].remove(connection) |
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158 if not self._hostmap[host]: del self._hostmap[host] |
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159 finally: |
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160 self._lock.release() |
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161 |
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162 def set_ready(self, connection, ready): |
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163 try: |
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164 self._readymap[connection] = ready |
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165 except KeyError: |
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166 pass |
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167 |
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168 def get_ready_conn(self, host): |
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169 conn = None |
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170 self._lock.acquire() |
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171 try: |
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172 if host in self._hostmap: |
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173 for c in self._hostmap[host]: |
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174 if self._readymap[c]: |
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175 self._readymap[c] = 0 |
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176 conn = c |
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177 break |
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178 finally: |
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179 self._lock.release() |
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180 return conn |
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181 |
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182 def get_all(self, host=None): |
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183 if host: |
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184 return list(self._hostmap.get(host, [])) |
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185 else: |
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186 return dict(self._hostmap) |
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187 |
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188 class KeepAliveHandler(object): |
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189 def __init__(self): |
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190 self._cm = ConnectionManager() |
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191 |
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192 #### Connection Management |
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193 def open_connections(self): |
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194 """return a list of connected hosts and the number of connections |
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195 to each. [('foo.com:80', 2), ('bar.org', 1)]""" |
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196 return [(host, len(li)) for (host, li) in self._cm.get_all().items()] |
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197 |
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198 def close_connection(self, host): |
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199 """close connection(s) to <host> |
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200 host is the host:port spec, as in 'www.cnn.com:8080' as passed in. |
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201 no error occurs if there is no connection to that host.""" |
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202 for h in self._cm.get_all(host): |
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203 self._cm.remove(h) |
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204 h.close() |
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205 |
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206 def close_all(self): |
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207 """close all open connections""" |
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208 for host, conns in self._cm.get_all().iteritems(): |
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209 for h in conns: |
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210 self._cm.remove(h) |
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211 h.close() |
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212 |
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213 def _request_closed(self, request, host, connection): |
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214 """tells us that this request is now closed and that the |
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215 connection is ready for another request""" |
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216 self._cm.set_ready(connection, 1) |
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217 |
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218 def _remove_connection(self, host, connection, close=0): |
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219 if close: |
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220 connection.close() |
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221 self._cm.remove(connection) |
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222 |
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223 #### Transaction Execution |
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224 def http_open(self, req): |
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225 return self.do_open(HTTPConnection, req) |
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226 |
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227 def do_open(self, http_class, req): |
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228 host = req.get_host() |
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229 if not host: |
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230 raise urllib2.URLError('no host given') |
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231 |
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232 try: |
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233 h = self._cm.get_ready_conn(host) |
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234 while h: |
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235 r = self._reuse_connection(h, req, host) |
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236 |
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237 # if this response is non-None, then it worked and we're |
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238 # done. Break out, skipping the else block. |
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239 if r: |
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240 break |
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241 |
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242 # connection is bad - possibly closed by server |
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243 # discard it and ask for the next free connection |
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244 h.close() |
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245 self._cm.remove(h) |
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246 h = self._cm.get_ready_conn(host) |
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247 else: |
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248 # no (working) free connections were found. Create a new one. |
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249 h = http_class(host) |
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250 if DEBUG: |
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251 DEBUG.info("creating new connection to %s (%d)", |
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252 host, id(h)) |
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253 self._cm.add(host, h, 0) |
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254 self._start_transaction(h, req) |
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255 r = h.getresponse() |
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256 except (socket.error, httplib.HTTPException), err: |
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257 raise urllib2.URLError(err) |
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258 |
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259 # if not a persistent connection, don't try to reuse it |
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260 if r.will_close: |
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261 self._cm.remove(h) |
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262 |
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263 if DEBUG: |
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264 DEBUG.info("STATUS: %s, %s", r.status, r.reason) |
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265 r._handler = self |
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266 r._host = host |
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267 r._url = req.get_full_url() |
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268 r._connection = h |
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269 r.code = r.status |
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270 r.headers = r.msg |
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271 r.msg = r.reason |
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272 |
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273 if r.status == 200 or not HANDLE_ERRORS: |
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274 return r |
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275 else: |
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276 return self.parent.error('http', req, r, |
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277 r.status, r.msg, r.headers) |
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278 |
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279 def _reuse_connection(self, h, req, host): |
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280 """start the transaction with a re-used connection |
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281 return a response object (r) upon success or None on failure. |
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282 This DOES not close or remove bad connections in cases where |
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283 it returns. However, if an unexpected exception occurs, it |
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284 will close and remove the connection before re-raising. |
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285 """ |
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286 try: |
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287 self._start_transaction(h, req) |
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288 r = h.getresponse() |
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289 # note: just because we got something back doesn't mean it |
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290 # worked. We'll check the version below, too. |
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291 except (socket.error, httplib.HTTPException): |
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292 r = None |
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293 except: # re-raises |
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294 # adding this block just in case we've missed |
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295 # something we will still raise the exception, but |
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296 # lets try and close the connection and remove it |
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297 # first. We previously got into a nasty loop |
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298 # where an exception was uncaught, and so the |
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299 # connection stayed open. On the next try, the |
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300 # same exception was raised, etc. The trade-off is |
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301 # that it's now possible this call will raise |
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302 # a DIFFERENT exception |
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303 if DEBUG: |
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304 DEBUG.error("unexpected exception - closing " |
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305 "connection to %s (%d)", host, id(h)) |
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306 self._cm.remove(h) |
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307 h.close() |
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308 raise |
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309 |
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310 if r is None or r.version == 9: |
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311 # httplib falls back to assuming HTTP 0.9 if it gets a |
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312 # bad header back. This is most likely to happen if |
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313 # the socket has been closed by the server since we |
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314 # last used the connection. |
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315 if DEBUG: |
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316 DEBUG.info("failed to re-use connection to %s (%d)", |
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317 host, id(h)) |
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318 r = None |
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319 else: |
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320 if DEBUG: |
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321 DEBUG.info("re-using connection to %s (%d)", host, id(h)) |
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322 |
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323 return r |
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324 |
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325 def _start_transaction(self, h, req): |
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326 # What follows mostly reimplements HTTPConnection.request() |
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327 # except it adds self.parent.addheaders in the mix. |
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328 headers = req.headers.copy() |
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329 if sys.version_info >= (2, 4): |
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330 headers.update(req.unredirected_hdrs) |
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331 headers.update(self.parent.addheaders) |
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332 headers = dict((n.lower(), v) for n, v in headers.items()) |
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333 skipheaders = {} |
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334 for n in ('host', 'accept-encoding'): |
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335 if n in headers: |
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336 skipheaders['skip_' + n.replace('-', '_')] = 1 |
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337 try: |
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338 if req.has_data(): |
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339 data = req.get_data() |
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340 h.putrequest('POST', req.get_selector(), **skipheaders) |
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341 if 'content-type' not in headers: |
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342 h.putheader('Content-type', |
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343 'application/x-www-form-urlencoded') |
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344 if 'content-length' not in headers: |
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345 h.putheader('Content-length', '%d' % len(data)) |
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346 else: |
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347 h.putrequest('GET', req.get_selector(), **skipheaders) |
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348 except (socket.error), err: |
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349 raise urllib2.URLError(err) |
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350 for k, v in headers.items(): |
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351 h.putheader(k, v) |
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352 h.endheaders() |
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353 if req.has_data(): |
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354 h.send(data) |
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355 |
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356 class HTTPHandler(KeepAliveHandler, urllib2.HTTPHandler): |
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357 pass |
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358 |
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359 class HTTPResponse(httplib.HTTPResponse): |
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360 # we need to subclass HTTPResponse in order to |
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361 # 1) add readline() and readlines() methods |
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362 # 2) add close_connection() methods |
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363 # 3) add info() and geturl() methods |
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364 |
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365 # in order to add readline(), read must be modified to deal with a |
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366 # buffer. example: readline must read a buffer and then spit back |
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367 # one line at a time. The only real alternative is to read one |
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368 # BYTE at a time (ick). Once something has been read, it can't be |
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369 # put back (ok, maybe it can, but that's even uglier than this), |
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370 # so if you THEN do a normal read, you must first take stuff from |
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371 # the buffer. |
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372 |
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373 # the read method wraps the original to accommodate buffering, |
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374 # although read() never adds to the buffer. |
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375 # Both readline and readlines have been stolen with almost no |
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376 # modification from socket.py |
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377 |
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378 |
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379 def __init__(self, sock, debuglevel=0, strict=0, method=None): |
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380 httplib.HTTPResponse.__init__(self, sock, debuglevel, method) |
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381 self.fileno = sock.fileno |
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382 self.code = None |
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383 self._rbuf = '' |
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384 self._rbufsize = 8096 |
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385 self._handler = None # inserted by the handler later |
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386 self._host = None # (same) |
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387 self._url = None # (same) |
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388 self._connection = None # (same) |
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389 |
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390 _raw_read = httplib.HTTPResponse.read |
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391 |
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392 def close(self): |
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393 if self.fp: |
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394 self.fp.close() |
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395 self.fp = None |
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396 if self._handler: |
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397 self._handler._request_closed(self, self._host, |
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398 self._connection) |
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399 |
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400 def close_connection(self): |
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401 self._handler._remove_connection(self._host, self._connection, close=1) |
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402 self.close() |
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403 |
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404 def info(self): |
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405 return self.headers |
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406 |
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407 def geturl(self): |
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408 return self._url |
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409 |
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410 def read(self, amt=None): |
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411 # the _rbuf test is only in this first if for speed. It's not |
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412 # logically necessary |
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413 if self._rbuf and not amt is None: |
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414 L = len(self._rbuf) |
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415 if amt > L: |
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416 amt -= L |
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417 else: |
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418 s = self._rbuf[:amt] |
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419 self._rbuf = self._rbuf[amt:] |
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420 return s |
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421 |
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422 s = self._rbuf + self._raw_read(amt) |
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423 self._rbuf = '' |
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424 return s |
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425 |
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426 # stolen from Python SVN #68532 to fix issue1088 |
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427 def _read_chunked(self, amt): |
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428 chunk_left = self.chunk_left |
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429 value = '' |
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430 |
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431 # XXX This accumulates chunks by repeated string concatenation, |
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432 # which is not efficient as the number or size of chunks gets big. |
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433 while True: |
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434 if chunk_left is None: |
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435 line = self.fp.readline() |
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436 i = line.find(';') |
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437 if i >= 0: |
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438 line = line[:i] # strip chunk-extensions |
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439 try: |
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440 chunk_left = int(line, 16) |
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441 except ValueError: |
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442 # close the connection as protocol synchronization is |
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443 # probably lost |
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444 self.close() |
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445 raise httplib.IncompleteRead(value) |
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446 if chunk_left == 0: |
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447 break |
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448 if amt is None: |
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449 value += self._safe_read(chunk_left) |
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450 elif amt < chunk_left: |
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451 value += self._safe_read(amt) |
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452 self.chunk_left = chunk_left - amt |
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453 return value |
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454 elif amt == chunk_left: |
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455 value += self._safe_read(amt) |
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456 self._safe_read(2) # toss the CRLF at the end of the chunk |
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457 self.chunk_left = None |
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458 return value |
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459 else: |
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460 value += self._safe_read(chunk_left) |
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461 amt -= chunk_left |
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462 |
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463 # we read the whole chunk, get another |
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464 self._safe_read(2) # toss the CRLF at the end of the chunk |
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465 chunk_left = None |
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466 |
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467 # read and discard trailer up to the CRLF terminator |
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468 ### note: we shouldn't have any trailers! |
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469 while True: |
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470 line = self.fp.readline() |
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471 if not line: |
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472 # a vanishingly small number of sites EOF without |
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473 # sending the trailer |
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474 break |
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475 if line == '\r\n': |
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476 break |
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477 |
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478 # we read everything; close the "file" |
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479 self.close() |
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480 |
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481 return value |
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482 |
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483 def readline(self, limit=-1): |
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484 i = self._rbuf.find('\n') |
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485 while i < 0 and not (0 < limit <= len(self._rbuf)): |
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486 new = self._raw_read(self._rbufsize) |
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487 if not new: |
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488 break |
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489 i = new.find('\n') |
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490 if i >= 0: |
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491 i = i + len(self._rbuf) |
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492 self._rbuf = self._rbuf + new |
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493 if i < 0: |
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494 i = len(self._rbuf) |
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495 else: |
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496 i = i + 1 |
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497 if 0 <= limit < len(self._rbuf): |
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498 i = limit |
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499 data, self._rbuf = self._rbuf[:i], self._rbuf[i:] |
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500 return data |
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501 |
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502 def readlines(self, sizehint=0): |
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503 total = 0 |
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504 list = [] |
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505 while True: |
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506 line = self.readline() |
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507 if not line: |
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508 break |
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509 list.append(line) |
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510 total += len(line) |
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511 if sizehint and total >= sizehint: |
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512 break |
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513 return list |
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514 |
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515 def safesend(self, str): |
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516 """Send `str' to the server. |
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517 |
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518 Shamelessly ripped off from httplib to patch a bad behavior. |
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519 """ |
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520 # _broken_pipe_resp is an attribute we set in this function |
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521 # if the socket is closed while we're sending data but |
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522 # the server sent us a response before hanging up. |
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523 # In that case, we want to pretend to send the rest of the |
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524 # outgoing data, and then let the user use getresponse() |
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525 # (which we wrap) to get this last response before |
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526 # opening a new socket. |
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527 if getattr(self, '_broken_pipe_resp', None) is not None: |
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|
528 return |
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|
529 |
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530 if self.sock is None: |
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531 if self.auto_open: |
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532 self.connect() |
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533 else: |
16687
e34106fa0dc3
cleanup: "raise SomeException()" -> "raise SomeException"
Brodie Rao <brodie@sf.io>
parents:
16686
diff
changeset
|
534 raise httplib.NotConnected |
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535 |
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536 # send the data to the server. if we get a broken pipe, then close |
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537 # the socket. we want to reconnect when somebody tries to send again. |
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|
538 # |
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539 # NOTE: we DO propagate the error, though, because we cannot simply |
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540 # ignore the error... the caller will know if they can retry. |
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541 if self.debuglevel > 0: |
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542 print "send:", repr(str) |
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543 try: |
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544 blocksize = 8192 |
14958
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|
545 read = getattr(str, 'read', None) |
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|
546 if read is not None: |
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|
547 if self.debuglevel > 0: |
17424
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fix trivial spelling errors
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parents:
17251
diff
changeset
|
548 print "sending a read()able" |
14958
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diff
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|
549 data = read(blocksize) |
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|
550 while data: |
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|
551 self.sock.sendall(data) |
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|
552 data = read(blocksize) |
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553 else: |
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|
554 self.sock.sendall(str) |
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|
555 except socket.error, v: |
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|
556 reraise = True |
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|
557 if v[0] == errno.EPIPE: # Broken pipe |
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558 if self._HTTPConnection__state == httplib._CS_REQ_SENT: |
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|
559 self._broken_pipe_resp = None |
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|
560 self._broken_pipe_resp = self.getresponse() |
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|
561 reraise = False |
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|
562 self.close() |
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|
563 if reraise: |
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parents:
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|
564 raise |
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parents:
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|
565 |
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|
566 def wrapgetresponse(cls): |
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|
567 """Wraps getresponse in cls with a broken-pipe sane version. |
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|
568 """ |
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parents:
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|
569 def safegetresponse(self): |
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|
570 # In safesend() we might set the _broken_pipe_resp |
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parents:
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571 # attribute, in which case the socket has already |
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parents:
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|
572 # been closed and we just need to give them the response |
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573 # back. Otherwise, we use the normal response path. |
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|
574 r = getattr(self, '_broken_pipe_resp', None) |
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parents:
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|
575 if r is not None: |
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parents:
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|
576 return r |
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|
577 return cls.getresponse(self) |
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|
578 safegetresponse.__doc__ = cls.getresponse.__doc__ |
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|
579 return safegetresponse |
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diff
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|
580 |
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parents:
diff
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|
581 class HTTPConnection(httplib.HTTPConnection): |
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diff
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|
582 # use the modified response class |
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diff
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|
583 response_class = HTTPResponse |
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|
584 send = safesend |
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|
585 getresponse = wrapgetresponse(httplib.HTTPConnection) |
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|
586 |
2600
c4325f0a9b91
clean up trailing white space.
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parents:
2444
diff
changeset
|
587 |
2435
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diff
changeset
|
588 ######################################################################### |
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parents:
diff
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|
589 ##### TEST FUNCTIONS |
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diff
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|
590 ######################################################################### |
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|
591 |
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parents:
diff
changeset
|
592 def error_handler(url): |
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diff
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|
593 global HANDLE_ERRORS |
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diff
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|
594 orig = HANDLE_ERRORS |
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diff
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|
595 keepalive_handler = HTTPHandler() |
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|
596 opener = urllib2.build_opener(keepalive_handler) |
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|
597 urllib2.install_opener(opener) |
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diff
changeset
|
598 pos = {0: 'off', 1: 'on'} |
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diff
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|
599 for i in (0, 1): |
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parents:
diff
changeset
|
600 print " fancy error handling %s (HANDLE_ERRORS = %i)" % (pos[i], i) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
601 HANDLE_ERRORS = i |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
602 try: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
603 fo = urllib2.urlopen(url) |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7868
diff
changeset
|
604 fo.read() |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
605 fo.close() |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
606 try: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
607 status, reason = fo.status, fo.reason |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
608 except AttributeError: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
609 status, reason = None, None |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
610 except IOError, e: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
611 print " EXCEPTION: %s" % e |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
612 raise |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
613 else: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
614 print " status = %s, reason = %s" % (status, reason) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
615 HANDLE_ERRORS = orig |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
616 hosts = keepalive_handler.open_connections() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
617 print "open connections:", hosts |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
618 keepalive_handler.close_all() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
619 |
8296 | 620 def md5(s): |
621 try: | |
622 from hashlib import md5 as _md5 | |
623 except ImportError: | |
624 from md5 import md5 as _md5 | |
625 global md5 | |
626 md5 = _md5 | |
627 return _md5(s) | |
628 | |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
629 def continuity(url): |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
630 format = '%25s: %s' |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
631 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
632 # first fetch the file with the normal http handler |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
633 opener = urllib2.build_opener() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
634 urllib2.install_opener(opener) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
635 fo = urllib2.urlopen(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
636 foo = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
637 fo.close() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
638 m = md5.new(foo) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
639 print format % ('normal urllib', m.hexdigest()) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
640 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
641 # now install the keepalive handler and try again |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
642 opener = urllib2.build_opener(HTTPHandler()) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
643 urllib2.install_opener(opener) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
644 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
645 fo = urllib2.urlopen(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
646 foo = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
647 fo.close() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
648 m = md5.new(foo) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
649 print format % ('keepalive read', m.hexdigest()) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
650 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
651 fo = urllib2.urlopen(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
652 foo = '' |
14494
1ffeeb91c55d
check-code: flag 0/1 used as constant Boolean expression
Martin Geisler <mg@lazybytes.net>
parents:
10394
diff
changeset
|
653 while True: |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
654 f = fo.readline() |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
655 if f: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
656 foo = foo + f |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
657 else: break |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
658 fo.close() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
659 m = md5.new(foo) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
660 print format % ('keepalive readline', m.hexdigest()) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
661 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
662 def comp(N, url): |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
663 print ' making %i connections to:\n %s' % (N, url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
664 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
665 sys.stdout.write(' first using the normal urllib handlers') |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
666 # first use normal opener |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
667 opener = urllib2.build_opener() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
668 urllib2.install_opener(opener) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
669 t1 = fetch(N, url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
670 print ' TIME: %.3f s' % t1 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
671 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
672 sys.stdout.write(' now using the keepalive handler ') |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
673 # now install the keepalive handler and try again |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
674 opener = urllib2.build_opener(HTTPHandler()) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
675 urllib2.install_opener(opener) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
676 t2 = fetch(N, url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
677 print ' TIME: %.3f s' % t2 |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
678 print ' improvement factor: %.2f' % (t1 / t2) |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
679 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
680 def fetch(N, url, delay=0): |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
681 import time |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
682 lens = [] |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
683 starttime = time.time() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
684 for i in range(N): |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
685 if delay and i > 0: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
686 time.sleep(delay) |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
687 fo = urllib2.urlopen(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
688 foo = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
689 fo.close() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
690 lens.append(len(foo)) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
691 diff = time.time() - starttime |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
692 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
693 j = 0 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
694 for i in lens[1:]: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
695 j = j + 1 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
696 if not i == lens[0]: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
697 print "WARNING: inconsistent length on read %i: %i" % (j, i) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
698 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
699 return diff |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
700 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
701 def test_timeout(url): |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
702 global DEBUG |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
703 dbbackup = DEBUG |
14764
a7d5816087a9
classes: fix class style problems found by b071cd58af50
Thomas Arendsen Hein <thomas@intevation.de>
parents:
14494
diff
changeset
|
704 class FakeLogger(object): |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
705 def debug(self, msg, *args): |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
706 print msg % args |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
707 info = warning = error = debug |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
708 DEBUG = FakeLogger() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
709 print " fetching the file to establish a connection" |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
710 fo = urllib2.urlopen(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
711 data1 = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
712 fo.close() |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
713 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
714 i = 20 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
715 print " waiting %i seconds for the server to close the connection" % i |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
716 while i > 0: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
717 sys.stdout.write('\r %2i' % i) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
718 sys.stdout.flush() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
719 time.sleep(1) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
720 i -= 1 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
721 sys.stderr.write('\r') |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
722 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
723 print " fetching the file a second time" |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
724 fo = urllib2.urlopen(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
725 data2 = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
726 fo.close() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
727 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
728 if data1 == data2: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
729 print ' data are identical' |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
730 else: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
731 print ' ERROR: DATA DIFFER' |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
732 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
733 DEBUG = dbbackup |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
734 |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
735 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
736 def test(url, N=10): |
17424
e7cfe3587ea4
fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents:
17251
diff
changeset
|
737 print "checking error handler (do this on a non-200)" |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
738 try: error_handler(url) |
7875
553aa0cbeab6
cleanup: drop unused assignments
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7874
diff
changeset
|
739 except IOError: |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
740 print "exiting - exception will prevent further tests" |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
741 sys.exit() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
742 print |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
743 print "performing continuity test (making sure stuff isn't corrupted)" |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
744 continuity(url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
745 print |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
746 print "performing speed comparison" |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
747 comp(N, url) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
748 print |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
749 print "performing dropped-connection check" |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
750 test_timeout(url) |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
751 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
752 if __name__ == '__main__': |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
753 import time |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
754 import sys |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
755 try: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
756 N = int(sys.argv[1]) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
757 url = sys.argv[2] |
16688
cfb6682961b8
cleanup: replace naked excepts with more specific ones
Brodie Rao <brodie@sf.io>
parents:
16687
diff
changeset
|
758 except (IndexError, ValueError): |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
759 print "%s <integer> <url>" % sys.argv[0] |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
760 else: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
761 test(url, N) |