Class: Hijack::GDB

Inherits:
Object
  • Object
show all
Defined in:
lib/hijack/gdb.rb

Instance Method Summary collapse

Constructor Details

#initialize(pid) ⇒ GDB

Returns a new instance of GDB.



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# File 'lib/hijack/gdb.rb', line 5

def initialize(pid)
  @verbose = Hijack.options[:gdb_debug]
  exec_path = File.join(Config::CONFIG['bindir'], Config::CONFIG['RUBY_INSTALL_NAME'] + Config::CONFIG['EXEEXT'])
  @gdb = IO.popen("gdb -q #{exec_path} #{pid} 2>&1", 'r+')
  wait
end

Instance Method Details

#attached_to_ruby_process? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hijack/gdb.rb', line 12

def attached_to_ruby_process?
  backtrace.any? {|line| line =~ /ruby_run/}
end

#detach ⇒ Object 



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# File 'lib/hijack/gdb.rb', line 28

def detach
  exec('detach')
  exec('quit')
  @gdb.close
end

#eval(cmd) ⇒ Object 



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# File 'lib/hijack/gdb.rb', line 20

def eval(cmd)
  set_trap_pending
  set_breakpoint
  continue
  clear_breakpoint
  call("(void)rb_eval_string(#{cmd.strip.gsub(/"/, '\"').inspect})")
end

#main_thread_blocked_by_join? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hijack/gdb.rb', line 16

def main_thread_blocked_by_join?
  backtrace.any? {|line| line =~ /rb_thread_join/}
end