Mercurial > hg
annotate tests/test-batching.py @ 34980:705d0f2bb677 stable
pathutil: add doctests for canonpath()
This is a followup to f445b10dc7fb. Since there's no way to ensure that more
drive letters than C: exist, this seems like the only way to test it. This is
enough to catch the f445b10dc7fb scenario, as well as CWD outside of the repo
when the path isn't prefixed with path/to/repo.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Fri, 03 Nov 2017 22:22:50 -0400 |
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children | a81d02ea65db |
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1 # test-batching.py - tests for transparent command batching |
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2 # |
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3 # Copyright 2011 Peter Arrenbrecht <peter@arrenbrecht.ch> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import, print_function |
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9 |
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10 from mercurial import ( |
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11 error, |
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12 peer, |
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13 util, |
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14 wireproto, |
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15 ) |
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16 |
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17 # equivalent of repo.repository |
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18 class thing(object): |
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19 def hello(self): |
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20 return "Ready." |
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21 |
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22 # equivalent of localrepo.localrepository |
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23 class localthing(thing): |
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24 def foo(self, one, two=None): |
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25 if one: |
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26 return "%s and %s" % (one, two,) |
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27 return "Nope" |
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28 def bar(self, b, a): |
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29 return "%s und %s" % (b, a,) |
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30 def greet(self, name=None): |
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31 return "Hello, %s" % name |
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32 def batchiter(self): |
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33 '''Support for local batching.''' |
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34 return peer.localiterbatcher(self) |
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35 |
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36 # usage of "thing" interface |
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37 def use(it): |
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38 |
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39 # Direct call to base method shared between client and server. |
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40 print(it.hello()) |
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41 |
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42 # Direct calls to proxied methods. They cause individual roundtrips. |
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43 print(it.foo("Un", two="Deux")) |
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44 print(it.bar("Eins", "Zwei")) |
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45 |
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46 # Batched call to a couple of proxied methods. |
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47 batch = it.batchiter() |
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48 # The calls return futures to eventually hold results. |
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49 foo = batch.foo(one="One", two="Two") |
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50 bar = batch.bar("Eins", "Zwei") |
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51 bar2 = batch.bar(b="Uno", a="Due") |
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52 |
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53 # Future shouldn't be set until we submit(). |
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54 assert isinstance(foo, peer.future) |
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55 assert not util.safehasattr(foo, 'value') |
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56 assert not util.safehasattr(bar, 'value') |
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57 batch.submit() |
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58 # Call results() to obtain results as a generator. |
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59 results = batch.results() |
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60 |
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61 # Future results shouldn't be set until we consume a value. |
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62 assert not util.safehasattr(foo, 'value') |
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63 foovalue = next(results) |
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64 assert util.safehasattr(foo, 'value') |
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65 assert foovalue == foo.value |
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66 print(foo.value) |
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67 next(results) |
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68 print(bar.value) |
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69 next(results) |
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70 print(bar2.value) |
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71 |
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72 # We should be at the end of the results generator. |
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73 try: |
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74 next(results) |
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75 except StopIteration: |
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76 print('proper end of results generator') |
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77 else: |
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78 print('extra emitted element!') |
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79 |
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80 # Attempting to call a non-batchable method inside a batch fails. |
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81 batch = it.batchiter() |
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82 try: |
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83 batch.greet(name='John Smith') |
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84 except error.ProgrammingError as e: |
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85 print(e) |
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86 |
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87 # Attempting to call a local method inside a batch fails. |
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88 batch = it.batchiter() |
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89 try: |
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90 batch.hello() |
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91 except error.ProgrammingError as e: |
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92 print(e) |
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93 |
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94 # local usage |
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95 mylocal = localthing() |
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96 print() |
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97 print("== Local") |
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98 use(mylocal) |
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99 |
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100 # demo remoting; mimicks what wireproto and HTTP/SSH do |
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101 |
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102 # shared |
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103 |
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104 def escapearg(plain): |
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105 return (plain |
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106 .replace(':', '::') |
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107 .replace(',', ':,') |
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108 .replace(';', ':;') |
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109 .replace('=', ':=')) |
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110 def unescapearg(escaped): |
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111 return (escaped |
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112 .replace(':=', '=') |
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113 .replace(':;', ';') |
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114 .replace(':,', ',') |
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115 .replace('::', ':')) |
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116 |
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117 # server side |
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118 |
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119 # equivalent of wireproto's global functions |
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120 class server(object): |
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121 def __init__(self, local): |
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122 self.local = local |
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123 def _call(self, name, args): |
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124 args = dict(arg.split('=', 1) for arg in args) |
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125 return getattr(self, name)(**args) |
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126 def perform(self, req): |
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127 print("REQ:", req) |
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128 name, args = req.split('?', 1) |
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129 args = args.split('&') |
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130 vals = dict(arg.split('=', 1) for arg in args) |
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131 res = getattr(self, name)(**vals) |
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132 print(" ->", res) |
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133 return res |
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134 def batch(self, cmds): |
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135 res = [] |
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136 for pair in cmds.split(';'): |
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137 name, args = pair.split(':', 1) |
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138 vals = {} |
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139 for a in args.split(','): |
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140 if a: |
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141 n, v = a.split('=') |
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142 vals[n] = unescapearg(v) |
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143 res.append(escapearg(getattr(self, name)(**vals))) |
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144 return ';'.join(res) |
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145 def foo(self, one, two): |
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146 return mangle(self.local.foo(unmangle(one), unmangle(two))) |
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147 def bar(self, b, a): |
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148 return mangle(self.local.bar(unmangle(b), unmangle(a))) |
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149 def greet(self, name): |
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150 return mangle(self.local.greet(unmangle(name))) |
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151 myserver = server(mylocal) |
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152 |
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153 # local side |
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154 |
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155 # equivalent of wireproto.encode/decodelist, that is, type-specific marshalling |
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156 # here we just transform the strings a bit to check we're properly en-/decoding |
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157 def mangle(s): |
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158 return ''.join(chr(ord(c) + 1) for c in s) |
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159 def unmangle(s): |
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160 return ''.join(chr(ord(c) - 1) for c in s) |
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161 |
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162 # equivalent of wireproto.wirerepository and something like http's wire format |
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163 class remotething(thing): |
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164 def __init__(self, server): |
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165 self.server = server |
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166 def _submitone(self, name, args): |
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167 req = name + '?' + '&'.join(['%s=%s' % (n, v) for n, v in args]) |
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168 return self.server.perform(req) |
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169 def _submitbatch(self, cmds): |
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170 req = [] |
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171 for name, args in cmds: |
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172 args = ','.join(n + '=' + escapearg(v) for n, v in args) |
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173 req.append(name + ':' + args) |
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174 req = ';'.join(req) |
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175 res = self._submitone('batch', [('cmds', req,)]) |
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176 for r in res.split(';'): |
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177 yield r |
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178 |
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179 def batchiter(self): |
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180 return wireproto.remoteiterbatcher(self) |
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181 |
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182 @peer.batchable |
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183 def foo(self, one, two=None): |
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184 encargs = [('one', mangle(one),), ('two', mangle(two),)] |
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185 encresref = peer.future() |
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186 yield encargs, encresref |
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187 yield unmangle(encresref.value) |
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188 |
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189 @peer.batchable |
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190 def bar(self, b, a): |
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191 encresref = peer.future() |
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192 yield [('b', mangle(b),), ('a', mangle(a),)], encresref |
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193 yield unmangle(encresref.value) |
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194 |
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195 # greet is coded directly. It therefore does not support batching. If it |
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196 # does appear in a batch, the batch is split around greet, and the call to |
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197 # greet is done in its own roundtrip. |
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198 def greet(self, name=None): |
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199 return unmangle(self._submitone('greet', [('name', mangle(name),)])) |
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200 |
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201 # demo remote usage |
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202 |
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203 myproxy = remotething(myserver) |
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204 print() |
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205 print("== Remote") |
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206 use(myproxy) |