Module: Iyyov

Includes:
RJack
Defined in:
lib/iyyov/base.rb,
lib/iyyov.rb,
lib/iyyov/task.rb,
lib/iyyov/daemon.rb,
lib/iyyov/errors.rb,
lib/iyyov/context.rb,
lib/iyyov/scheduler.rb,
lib/iyyov/log_rotator.rb,
lib/iyyov/shutdown_handler.rb

Overview

– Copyright © 2010-2015 David Kellum

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. ++

Defined Under Namespace

Classes: Context, Daemon, DaemonFailed, LogRotator, Scheduler, SetupError, ShutdownHandler, Task

Constant Summary collapse

VERSION =

Iyyov version

'1.3.1'

Class Method Summary collapse

Class Method Details

.context {|@context| ... } ⇒ Object

Yields current context to block. Called from configuration scripts.

Yields:



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# File 'lib/iyyov.rb', line 38

def self.context
  raise "Iyyov.context called before run" unless @context
  yield @context if block_given?
  @context
end

.load_root_files(files) ⇒ Object

Load root configuration files.



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# File 'lib/iyyov.rb', line 49

def self.load_root_files( files )
  old_context = @context
  @context = Context.new

  @extra_config_block.call( @context ) if @extra_config_block

  all_success = true
  files.each { |cfile| all_success &&= @context.load_file( cfile, true ) }

  if old_context
    if all_success
      # Stop old daemons that are either:
      # - no longer in the newly configured context, OR:
      # - with exec_key changed AND a passing pre_check
      old_context.daemons.each do |name,odaemon|
        ndaemon = @context.daemons[name]
        if ( ndaemon.nil? ||
             ( ndaemon.pre_check &&
               ( ndaemon.exec_key != odaemon.exec_key ) ) )
          odaemon.stop
        end
      end
    else
      @context = old_context
    end
  end

  all_success
end

.run(root_files, &block) ⇒ Object

Load configuration root_files and run the event loop, not returning. Yields new Context to optional block for extra configuration to be applied before any root_files are loaded.



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# File 'lib/iyyov.rb', line 25

def self.run( root_files, &block )
  @extra_config_block = block
  load_root_files( root_files )

  continue = true
  while( continue && @context )
    rc = @context.event_loop
    continue = ( rc == :shutdown )
  end
end

.set_test_context ⇒ Object 



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# File 'lib/iyyov.rb', line 44

def self.set_test_context
  @context = Context.new
end