Class: CI::Queue::Redis::Base::HeartbeatProcess

Inherits:
Object
  • Object
show all
Defined in:
lib/ci/queue/redis/base.rb

Instance Method Summary collapse

Constructor Details

#initialize(redis_url, zset_key, processed_key, owners_key, worker_queue_key) ⇒ HeartbeatProcess

Returns a new instance of HeartbeatProcess.



241
242
243
244
245
246
247
 
# File 'lib/ci/queue/redis/base.rb', line 241

def initialize(redis_url, zset_key, processed_key, owners_key, worker_queue_key)
  @redis_url = redis_url
  @zset_key = zset_key
  @processed_key = processed_key
  @owners_key = owners_key
  @worker_queue_key = worker_queue_key
end

Instance Method Details

#boot! ⇒ Object 



249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
 
# File 'lib/ci/queue/redis/base.rb', line 249

def boot!
  child_read, @pipe = IO.pipe
  ready_pipe, child_write = IO.pipe
  @pipe.binmode
  @pid = Process.spawn(
    RbConfig.ruby,
    ::File.join(__dir__, "monitor.rb"),
    @redis_url,
    @zset_key,
    @processed_key,
    @owners_key,
    @worker_queue_key,
    in: child_read,
    out: child_write,
  )
  child_read.close
  child_write.close

  # Check the process is alive.
  if ready_pipe.wait_readable(10)
    ready_pipe.gets
    ready_pipe.close
    Process.kill(0, @pid)
  else
    Process.kill(0, @pid)
    Process.wait(@pid)
    raise "Monitor child wasn't ready after 10 seconds"
  end
  @pipe
end

#shutdown! ⇒ Object 



280
281
282
283
284
285
286
287
288
 
# File 'lib/ci/queue/redis/base.rb', line 280

def shutdown!
  @pipe.close
  begin
    _, status = Process.waitpid2(@pid)
    status
  rescue Errno::ECHILD
    nil
  end
end

#tick!(id) ⇒ Object 



290
291
292
 
# File 'lib/ci/queue/redis/base.rb', line 290

def tick!(id)
  send_message(:tick!, id: id)
end