Module: ActiveSupport::IsolatedExecutionState

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 13

def isolation_level=(level)
  return if level == @isolation_level

  unless %i(thread fiber).include?(level)
    raise ArgumentError, "isolation_level must be `:thread` or `:fiber`, got: `#{level.inspect}`"
  end

  clear if @isolation_level

  @scope =
    case level
    when :thread; Thread
    when :fiber; Fiber
    end

  @isolation_level = level
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 11

attr_reader :isolation_level, :scope

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 39

def []=(key, value)
  state[key] = value
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 51

def clear
  state.clear
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 55

def context
  scope.current
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 47

def delete(key)
  state.delete(key)
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 43

def key?(key)
  state.key?(key)
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 59

def share_with(other)
  # Action Controller streaming spawns a new thread and copy thread locals.
  # We do the same here for backward compatibility, but this is very much a hack
  # and streaming should be rethought.
  context.active_support_execution_state = other.active_support_execution_state.dup
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 67

def state
  context.active_support_execution_state ||= {}
end

# File 'activesupport/lib/active_support/isolated_execution_state.rb', line 31

def unique_id
  self[:__id__] ||= Object.new
end