Class: MemprofilerPprof::BlockFlusher

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_memprofiler_pprof/block_flusher.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(collector, interval: 30, logger: nil, on_flush: nil, priority: nil, yield_gvl: false, proactively_yield_gvl: false) ⇒ BlockFlusher

Returns a new instance of BlockFlusher.



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 7

def initialize(
  collector, interval: 30, logger: nil, on_flush: nil, priority: nil,
  yield_gvl: false, proactively_yield_gvl: false
)
  @collector = collector
  @interval = interval
  @logger = logger
  @thread = nil
  @on_flush = on_flush
  @status_mutex = Mutex.new
  @status_cvar = ConditionVariable.new
  @status = :not_started
  @priority = priority
  @yield_gvl = yield_gvl
  @proactively_yield_gvl = proactively_yield_gvl
end

Instance Attribute Details

#collector ⇒ Object (readonly)

Returns the value of attribute collector.



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 5

def collector
  @collector
end

Instance Method Details

#pause ⇒ Object 



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 55

def pause
  @status_mutex.synchronize do
    @is_paused = true
    @status_cvar.broadcast
  end
end

#run ⇒ Object 



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 46

def run
  start!
  begin
    yield
  ensure
    stop!
  end
end

#start! ⇒ Object 



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 24

def start!
  stop!
  @status = :running
  @is_paused = false
  @thread = Thread.new { flusher_thread }
  if !@priority.nil?
    @thread.priority = @priority
  end
  @atfork_handler = MemprofilerPprof::Atfork.at_fork(:child, &method(:at_fork_in_child))
end

#stop! ⇒ Object 



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 35

def stop!
  @status_mutex.synchronize do
    @status = :stop
    @status_cvar.broadcast
  end
  @thread&.join
  @thread = nil
  @atfork_handler&.remove!
  @atfork_handler = nil
end

#unpause ⇒ Object 



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# File 'lib/ruby_memprofiler_pprof/block_flusher.rb', line 62

def unpause
  @status_mutex.synchronize do
    @is_paused = false
    @status_cvar.broadcast
  end
end