DbgWindow.py

   1 #!/usr/bin/python
   2 #shuber, 2008-06-04
   3
   4 __author__ = "shuber"
   5
   6
   7 import gtk
   8 import pty
   9 import string
  10 import time
  11 import threading
  12 import vte
  13
  14 import ClientIOWindow
  15
  16
  17 class DbgWindow (gtk.Window):
  18
  19         clientIOWnd = None
  20         lastrow = 0
  21         history = []
  22
  23
  24
  25         def __init__(self, clientCmd):
  26
  27                 #Set up some members
  28                 self.clientCmd = clientCmd
  29
  30                 #Set up GTK stuff
  31                 gtk.Window.__init__(self)
  32                 self.connect("destroy", lambda *w: gtk.main_quit())
  33
  34                 #Set title and add terminal
  35                 self.set_title("Debugger I/O")
  36                 self.terminal = vte.Terminal()
  37                 self.terminal.history = []
  38                 self.terminal.history_length = 5
  39                 self.add(self.terminal)
  40
  41                 #Set up terminal window and initialize debugger
  42                 self.terminal.connect("child-exited", lambda *w: gtk.main_quit())
  43                 self.terminal.connect("cursor-moved", self.contents_changed)
  44                 self._initializeDbg()
  45
  46                 #Show the window
  47                 self.show_all()
  48
  49
  50         def _initializeDbg(self):
  51
  52                 #Start debugger
  53                 self.terminal.fork_command( self.getDbgCommand(), self.getDbgArgv())
  54
  55                 #Open pseudo-terminal where to-be-debugged process reads/writes to
  56                 self.client_ptymaster, self.client_ptyslave = pty.openpty()
  57                 self.setDbgPty(self.client_ptyslave)
  58
  59
  60         def contents_changed(self, term):
  61                 c,r = term.get_cursor_position()
  62
  63                 if self.lastrow < r:
  64                         text = self.terminal.get_text_range(self.lastrow,0,r-1,-1,lambda *w:True)
  65                         self.history += string.split(text, "\n")
  66                         self.lastrow = r
  67
  68         def waitForDbgNewline(self):
  69                 r = self.lastrow
  70                 while not self.lastrow > r:
  71                         gtk.main_iteration()
  72
  73         def waitForDbgRx(self, rx):
  74                 while True:
  75                         start = len(self.history)
  76                         gtk.main_iteration()
  77
  78                         for line in self.history[start:]:
  79                                 if rx.search(line):
  80                                         return line
  81
  82
  83         def getDbgCommand(self):
  84                 return self.getDbgArgv()[0];
  85
  86         def getDbgArgv(self):
  87                 raise NotImplementedError()
  88
  89         def setDbgPty(self, pty):
  90                 raise NotImplementedError()
  91
  92         def setDbgRun(self):
  93                 raise NotImplementedError()
  94
  95         def setDbgQuit(self):
  96                 raise NotImplementedError()
  97
  98         def setDbgContinue(self):
  99                 raise NotImplementedError()
 100
 101         def setDbgBreakpoint(self, file, lineno):
 102                 raise NotImplementedError()
 103
 104         def getDbgExpression(self, expr):
 105                 raise NotImplementedError()
 106
 107         def getDbgLastLine(self):
 108                 if len(self.history) == 0:
 109                         return None
 110
 111                 return self.history[-1]
 112
 113         def feed_dbg(self, text):
 114                 self.terminal.feed_child(text)
 115
 116
 117         def showClientIOWindow(self):
 118                 if not self.clientIOWnd:
 119                         self.clientIOWnd = ClientIOWindow.ClientIOWindow(self, self.client_ptymaster)
 120
 121
 122
 123
 124 def launchDebugger(wnd):
 125
 126         wnd.showClientIOWindow()
 127
 128         wnd.setDbgBreakpoint("main.cpp", 15)
 129         wnd.setDbgRun()
 130         res = wnd.getDbgExpression("a")
 131         print "Result = ", res
 132
 133         wnd.setDbgQuit()
 134
 135         gtk.main()
 136
 137
 138
 139
 140