class BacklogReporter

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

Constants

ThreadLocalKey
VERSION

Public Class Methods

new(flag_path, max_backlog = 16) click to toggle source

# File lib/backlog_reporter.rb, line 25
def initialize flag_path, max_backlog = 16
  @flag = FlagFile.new flag_path
  @max_backlog = max_backlog
end

Public Instance Methods

check() click to toggle source

# File lib/backlog_reporter.rb, line 30
def check
  require 'puma'
  if server = puma_server
    @flag.set server.backlog > @max_backlog
  end
end

check_in_background(interval_s = 0.01) click to toggle source

# File lib/backlog_reporter.rb, line 51
def check_in_background interval_s = 0.01                                                                                              
  @thread = Thread.new { check_periodically interval_s }                                                                               
end

check_periodically(interval_s = 0.01) click to toggle source

# File lib/backlog_reporter.rb, line 44
def check_periodically interval_s = 0.01
  while true
    check rescue nil                                                                                                                   
    sleep interval_s                                                                                                                   
  end                                                                                                                                  
end

puma_server() click to toggle source

# File lib/backlog_reporter.rb, line 39
def puma_server
  puma_thread = Thread.list.find{|t| t[ThreadLocalKey]}
  puma_thread && puma_thread[ThreadLocalKey]
end

stop() click to toggle source

# File lib/backlog_reporter.rb, line 55
def stop
  if @thread
    @thread.exit
    @thread.join
    @thread = nil
  end
end