Class: TurboTest::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/turbo_test/server.rb

Instance Method Summary collapse

Constructor Details

#initialize(configuration, endpoint = nil) ⇒ Server

Returns a new instance of Server.



36
37
38
39
40
41
42
 
# File 'lib/turbo_test/server.rb', line 36

def initialize(configuration, endpoint = nil)
  @configuration = configuration
  @endpoint = endpoint || Async::IO::Endpoint.unix("turbo_test-#{Process.pid}.ipc")
  @wrapper = Wrapper.new
  
  @container = Async::Container.new
end

Instance Method Details

#host(queue) ⇒ Object 



44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
 
# File 'lib/turbo_test/server.rb', line 44

def host(queue)
  input, output = IO.pipe
  
  @container.spawn(name: "#{self.class} Host") do |instance|
    connected = 0
    progress = Console.logger.progress("Queue", queue.size)
    failures = []
    
    statistics = {
      succeeded: 0,
      failed: 0,
    }
    
    Async do |task|
      bound_endpoint = Sync do
        Async::IO::SharedEndpoint.bound(@endpoint)
      end
      
      instance.ready!
      
      bound_endpoint.accept do |peer|
        # Console.logger.info(self) {"Incoming connection from #{peer}..."}
        
        packer = @wrapper.packer(peer)
        unpacker = @wrapper.unpacker(peer)
        
        packer.write([:connected, connected])
        connected += 1
        
        unpacker.each do |message|
          command, *arguments = message
          
          case command
          when :ready
            Console.logger.debug("Child Ready") {arguments}
            
            if job = queue.pop
              packer.write([:job, job])
              packer.flush
            else
              Console.logger.debug("Child Closed")
              peer.close_write
              connected -= 1
              
              if connected.zero?
                print_summary(failures)
                task.stop
              end
            end
          when :finished
            Console.logger.debug("Job Finished") {arguments}
          when :failed
            Console.logger.debug("Job Failed") {arguments}
            failures << arguments
            statistics[:failed] += 1
          when :count
            Console.logger.debug("Job Count") {arguments}
            statistics[:succeeded] += arguments.first
          when :result
            Console.logger.debug("Job Result") {arguments}
            progress.increment
          when :error
            Console.logger.error("Job Error") {arguments}
          else
            Console.logger.warn(self) {"Unhandled command: #{command}#{arguments.inspect}"}
          end
        end
      end
      
      bound_endpoint.close
    end
  ensure
    Console.logger.info("Writing results")
    @wrapper.packer(output).write(statistics).flush
  end
  
  output.close
  
  return @wrapper.unpacker(input)
end

#print_summary(failures, command = $0) ⇒ Object 



125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
 
# File 'lib/turbo_test/server.rb', line 125

def print_summary(failures, command = $0)
  return unless failures.any?
  
  failures.sort_by!{|(failure)| failure[:location]}
  
  $stderr.puts nil, "Failures:", nil
  
  failures.each do |(failure)|
    $stderr.puts failure[:report]
    $stderr.puts
  end
  
  $stderr.puts nil, "Summary:", nil
  
  failures.each do |(failure)|
    $stderr.puts "#{command} #{failure[:location]} \# #{failure[:description]}"
  end
  
  $stderr.puts
end

#run(queue) ⇒ Object 



194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
 
# File 'lib/turbo_test/server.rb', line 194

def run(queue)
  # Start the host:
  results = self.host(queue)
  
  # Wait until the host is ready:
  @container.wait_until_ready
  
  # Start the workers:
  self.workers
  
  # Wait for the container to finish:
  @container.wait
  
  # Read the results from the host:
  return results.read
ensure
  if path = @endpoint.path and File.exist?(path)
    File.unlink(path)
  end
end

#workers ⇒ Object 



146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
 
# File 'lib/turbo_test/server.rb', line 146

def workers
  @container.run(name: "#{self.class} Worker") do |instance|
    Async do |task|
      sleep(rand)
      @endpoint.connect do |peer|
        threads = Async::IO::Threads.new
        
        packer = @wrapper.packer(peer)
        unpacker = @wrapper.unpacker(peer)
        
        packer.write([:ready])
        packer.flush
        
        instance.ready!
        
        unpacker.each do |message|
          command, tail = message
          
          case command
          when :connected
            @configuration&.worker&.call(*tail)
          when :job
            klass, *arguments = *tail
            
            begin
              # We run this in a separate thread to keep it isolated from the worker loop:
              result = threads.async do
                klass.new(*arguments).call(packer: packer)
              end.wait
              
              packer.write([:result, result])
            rescue Exception => exception
              packer.write([:error, exception.class, exception.backtrace])
            end
            
            packer.write([:ready])
            packer.flush
          else
            Console.logger.warn(self) {"Unhandled command: #{command}#{arguments.inspect}"}
          end
        end
      end
    rescue Errno::ECONNREFUSED
      # Host is finished already.
    end
  end
end