Module: Debugger

Defined in:
lib/ruby-debug-ide.rb,
lib/ruby-debug-ide/helper.rb,
lib/ruby-debug-ide/command.rb,
lib/ruby-debug-ide/version.rb,
lib/ruby-debug-ide/interface.rb,
lib/ruby-debug-ide/xml_printer.rb,
lib/ruby-debug-ide/commands/eval.rb,
lib/ruby-debug-ide/commands/jump.rb,
lib/ruby-debug-ide/commands/load.rb,
lib/ruby-debug-ide/ide_processor.rb,
lib/ruby-debug-ide/commands/frame.rb,
lib/ruby-debug-ide/commands/pause.rb,
lib/ruby-debug-ide/commands/enable.rb,
lib/ruby-debug-ide/event_processor.rb,
lib/ruby-debug-ide/commands/control.rb,
lib/ruby-debug-ide/commands/inspect.rb,
lib/ruby-debug-ide/commands/threads.rb,
lib/ruby-debug-ide/commands/set_type.rb,
lib/ruby-debug-ide/commands/stepping.rb,
lib/ruby-debug-ide/commands/condition.rb,
lib/ruby-debug-ide/commands/variables.rb,
lib/ruby-debug-ide/commands/catchpoint.rb,
lib/ruby-debug-ide/multiprocess/monkey.rb,
lib/ruby-debug-ide/commands/breakpoints.rb,
lib/ruby-debug-ide/multiprocess/pre_child.rb

Defined Under Namespace

Modules: EnableDisableFunctions, FrameFunctions, MultiProcess, ParseFunctions Classes: AddBreakpoint, BreakpointsCommand, CatchCommand, Command, ConditionCommand, ContinueCommand, ControlState, DeleteBreakpointCommand, DisableCommand, DownCommand, EnableCommand, EvalCommand, EventProcessor, Exception, FinishCommand, FrameCommand, IdeCommandProcessor, IdeControlCommandProcessor, InspectCommand, Interface, InterruptCommand, JumpCommand, LoadCommand, LocalInterface, NextCommand, PPCommand, PauseCommand, QuitCommand, RemoteInterface, RestartCommand, SetTypeCommand, StartCommand, State, StepCommand, ThreadCurrentCommand, ThreadInspectCommand, ThreadListCommand, ThreadResumeCommand, ThreadStopCommand, ThreadSwitchCommand, UpCommand, VarConstantCommand, VarGlobalCommand, VarInstanceCommand, VarLocalCommand, WhereCommand, XmlPrinter

Constant Summary collapse

IDE_VERSION = 
'0.4.22'

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.cli_debug ⇒ Object

Returns the value of attribute cli_debug.



44
45
46
 
# File 'lib/ruby-debug-ide.rb', line 44

def cli_debug
  @cli_debug
end

.control_thread ⇒ Object

Returns the value of attribute control_thread.



45
46
47
 
# File 'lib/ruby-debug-ide.rb', line 45

def control_thread
  @control_thread
end

.interface ⇒ Object (readonly)

Returns the value of attribute interface.



46
47
48
 
# File 'lib/ruby-debug-ide.rb', line 46

def interface
  @interface
end

.xml_debug ⇒ Object

Returns the value of attribute xml_debug.



44
45
46
 
# File 'lib/ruby-debug-ide.rb', line 44

def xml_debug
  @xml_debug
end

Class Method Details

.cleanup_backtrace(backtrace) ⇒ Object 



29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/ruby-debug-ide.rb', line 29

def cleanup_backtrace(backtrace)
   cleared = []
   return cleared unless backtrace
   backtrace.each do |line|
     if line.index(File.expand_path(File.dirname(__FILE__) + "/..")) == 0
       next
     end
     if line.index("-e:1") == 0
       break
     end
     cleared << line
   end
   cleared
end

.debug_program(options) ⇒ Object 



82
83
84
85
86
87
88
89
90
91
 
# File 'lib/ruby-debug-ide.rb', line 82

def debug_program(options)
  prepare_debugger(options)

  abs_prog_script = File.expand_path(Debugger::PROG_SCRIPT)
  bt = debug_load(abs_prog_script, options.stop, options.load_mode)
  if bt && !bt.is_a?(SystemExit)
    $stderr.print "Uncaught exception: #{bt}\n"
    $stderr.print Debugger.cleanup_backtrace(bt.backtrace).map{|l| "\t#{l}"}.join("\n"), "\n"
  end
end

.interrupt_last ⇒ Object

Interrupts the last debugged thread



52
53
54
55
56
57
58
59
60
 
# File 'lib/ruby-debug-ide.rb', line 52

def interrupt_last
  skip do
    if context = last_context
      return nil unless context.thread.alive?
      context.interrupt
    end
    context
  end
end

.prepare_debugger(options) ⇒ Object 



68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/ruby-debug-ide.rb', line 68

def prepare_debugger(options)
  start_server(options.host, options.port)

  raise "Control thread did not start (#{@control_thread}}" unless @control_thread && @control_thread.alive?

  @mutex = Mutex.new
  @proceed = ConditionVariable.new

  # wait for 'start' command
  @mutex.synchronize do
    @proceed.wait(@mutex)
  end
end

.print_debug(*args) ⇒ Object

Prints to the stderr using printf(*args) if debug logging flag (-d) is on.



20
21
22
23
24
25
26
27
 
# File 'lib/ruby-debug-ide.rb', line 20

def print_debug(*args)
  if Debugger.cli_debug
    $stderr.printf("#{Process.pid}: ")
    $stderr.printf(*args)
    $stderr.printf("\n")
    $stderr.flush
  end
end

.run_prog_script ⇒ Object 



93
94
95
96
97
98
 
# File 'lib/ruby-debug-ide.rb', line 93

def run_prog_script
  return unless @mutex
  @mutex.synchronize do
    @proceed.signal
  end
end

.start_control(host, port) ⇒ Object 



100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
 
# File 'lib/ruby-debug-ide.rb', line 100

def start_control(host, port)
  raise "Debugger is not started" unless started?
  return if @control_thread
  @control_thread = DebugThread.new do
    begin
      # 127.0.0.1 seemingly works with all systems and with IPv6 as well.
      # "localhost" and nil have problems on some systems.
      host ||= '127.0.0.1'
      gem_name = (defined?(JRUBY_VERSION) || RUBY_VERSION < '1.9.0') ? 'ruby-debug-base' :
                 RUBY_VERSION < '2.0.0' ? 'ruby-debug-base19x' : 'debase'
      server = TCPServer.new(host, port)
      $stderr.printf "Fast Debugger (ruby-debug-ide #{IDE_VERSION}, #{gem_name} #{VERSION}) listens on #{host}:#{port}\n"
      while (session = server.accept)
        $stderr.puts "Connected from #{session.peeraddr[2]}" if Debugger.cli_debug
        dispatcher = ENV['IDE_PROCESS_DISPATCHER']
        if dispatcher
          ENV['IDE_PROCESS_DISPATCHER'] = "#{session.peeraddr[2]}:#{dispatcher}" unless dispatcher.include?(":")
          ENV['DEBUGGER_HOST'] = host
        end
        begin
          @interface = RemoteInterface.new(session)
          self.handler = EventProcessor.new(interface)
          IdeControlCommandProcessor.new(interface).process_commands
        rescue StandardError, ScriptError => ex
          bt = ex.backtrace
          $stderr.printf "#{Process.pid}: Exception in DebugThread loop: #{ex.message}\nBacktrace:\n#{bt ? bt.join("\n  from: ") : "<none>"}\n"
          exit 1
        end
      end
    rescue
      bt = $!.backtrace
      $stderr.printf "Fatal exception in DebugThread loop: #{$!.message}\nBacktrace:\n#{bt ? bt.join("\n  from: ") : "<none>"}\n"
      exit 2
    end
  end
end

.start_server(host = nil, port = 1234) ⇒ Object 



62
63
64
65
66
 
# File 'lib/ruby-debug-ide.rb', line 62

def start_server(host = nil, port = 1234)
  return if started?
  start
  start_control(host, port)
end