/
winsvc.rb
105 lines (89 loc) · 2.55 KB
/
winsvc.rb
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#
# Fluentd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
begin
require 'optparse'
require 'windows/debug'
require 'Windows/Library'
require 'win32/daemon'
require 'win32/event'
include Win32
include Windows::Library
include Windows::Debug
op = OptionParser.new
opts = {service_name: nil}
op.on('--service-name NAME', "The name of the Windows Service") {|name|
opts[:service_name] = name
}
op.parse(ARGV)
if opts[:service_name] == nil
raise "Error: No Windows Service name set. Use '--service-name'"
end
def read_fluentdopt(service_name)
require 'win32/Registry'
Win32::Registry::HKEY_LOCAL_MACHINE.open("SYSTEM\\CurrentControlSet\\Services\\#{service_name}") do |reg|
reg.read("fluentdopt")[1] rescue ""
end
end
def service_main_start(service_name)
ruby_path = 0.chr * 260
GetModuleFileName.call(0, ruby_path,260)
ruby_path = ruby_path.rstrip.gsub(/\\/, '/')
rubybin_dir = ruby_path[0, ruby_path.rindex("/")]
opt = read_fluentdopt(service_name)
Process.spawn("\"#{rubybin_dir}/ruby.exe\" \"#{rubybin_dir}/fluentd\" #{opt} -x #{service_name}")
end
class FluentdService < Daemon
@pid = 0
@service_name = ''
def initialize(service_name)
@service_name = service_name
end
def service_main
@pid = service_main_start(@service_name)
while running?
sleep 10
end
end
def service_stop
set_event(@service_name)
if @pid > 0
Process.waitpid(@pid)
end
end
def service_paramchange
set_event("#{@service_name}_USR2")
end
def service_user_defined_control(code)
case code
when 128
set_event("#{@service_name}_HUP")
when 129
set_event("#{@service_name}_USR1")
when 130
set_event("#{@service_name}_CONT")
end
end
private
def set_event(event_name)
ev = Win32::Event.open(event_name)
ev.set
ev.close
end
end
FluentdService.new(opts[:service_name]).mainloop
rescue Exception => err
raise
end