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-rwxr-xr-xDemo/tkinter/guido/ShellWindow.py266
1 files changed, 133 insertions, 133 deletions
diff --git a/Demo/tkinter/guido/ShellWindow.py b/Demo/tkinter/guido/ShellWindow.py
index 98fe30f..609101b 100755
--- a/Demo/tkinter/guido/ShellWindow.py
+++ b/Demo/tkinter/guido/ShellWindow.py
@@ -10,142 +10,142 @@ BUFSIZE = 512
class ShellWindow(ScrolledText):
- def __init__(self, master=None, shell=None, **cnf):
- if not shell:
- try:
- shell = os.environ['SHELL']
- except KeyError:
- shell = '/bin/sh'
- shell = shell + ' -i'
- args = string.split(shell)
- shell = args[0]
-
- apply(ScrolledText.__init__, (self, master), cnf)
- self.pos = '1.0'
- self.bind('<Return>', self.inputhandler)
- self.bind('<Control-c>', self.sigint)
- self.bind('<Control-t>', self.sigterm)
- self.bind('<Control-k>', self.sigkill)
- self.bind('<Control-d>', self.sendeof)
-
- self.pid, self.fromchild, self.tochild = spawn(shell, args)
- self.tk.createfilehandler(self.fromchild, READABLE,
- self.outputhandler)
-
- def outputhandler(self, file, mask):
- data = os.read(file, BUFSIZE)
- if not data:
- self.tk.deletefilehandler(file)
- pid, sts = os.waitpid(self.pid, 0)
- print 'pid', pid, 'status', sts
- self.pid = None
- detail = sts>>8
- cause = sts & 0xff
- if cause == 0:
- msg = "exit status %d" % detail
- else:
- msg = "killed by signal %d" % (cause & 0x7f)
- if cause & 0x80:
- msg = msg + " -- core dumped"
- Dialog(self.master,
- text=msg,
- title="Exit status",
- bitmap='warning',
- default=0,
- strings=('OK',))
- return
- self.insert(END, data)
- self.pos = self.index("end - 1 char")
- self.yview_pickplace(END)
-
- def inputhandler(self, *args):
- if not self.pid:
- self.no_process()
- return "break"
- self.insert(END, "\n")
- line = self.get(self.pos, "end - 1 char")
- self.pos = self.index(END)
- os.write(self.tochild, line)
- return "break"
-
- def sendeof(self, *args):
- if not self.pid:
- self.no_process()
- return "break"
- os.close(self.tochild)
- return "break"
-
- def sendsig(self, sig):
- if not self.pid:
- self.no_process()
- return "break"
- os.kill(self.pid, sig)
- return "break"
-
- def sigint(self, *args):
- return self.sendsig(signal.SIGINT)
-
- def sigquit(self, *args):
- return self.sendsig(signal.SIGQUIT)
-
- def sigterm(self, *args):
- return self.sendsig(signal.SIGTERM)
-
- def sigkill(self, *args):
- return self.sendsig(signal.SIGKILL)
-
- def no_process(self):
- Dialog(self.master,
- text="No active process",
- title="No process",
- bitmap='error',
- default=0,
- strings=('OK',))
-
-MAXFD = 100 # Max number of file descriptors (os.getdtablesize()???)
+ def __init__(self, master=None, shell=None, **cnf):
+ if not shell:
+ try:
+ shell = os.environ['SHELL']
+ except KeyError:
+ shell = '/bin/sh'
+ shell = shell + ' -i'
+ args = string.split(shell)
+ shell = args[0]
+
+ apply(ScrolledText.__init__, (self, master), cnf)
+ self.pos = '1.0'
+ self.bind('<Return>', self.inputhandler)
+ self.bind('<Control-c>', self.sigint)
+ self.bind('<Control-t>', self.sigterm)
+ self.bind('<Control-k>', self.sigkill)
+ self.bind('<Control-d>', self.sendeof)
+
+ self.pid, self.fromchild, self.tochild = spawn(shell, args)
+ self.tk.createfilehandler(self.fromchild, READABLE,
+ self.outputhandler)
+
+ def outputhandler(self, file, mask):
+ data = os.read(file, BUFSIZE)
+ if not data:
+ self.tk.deletefilehandler(file)
+ pid, sts = os.waitpid(self.pid, 0)
+ print 'pid', pid, 'status', sts
+ self.pid = None
+ detail = sts>>8
+ cause = sts & 0xff
+ if cause == 0:
+ msg = "exit status %d" % detail
+ else:
+ msg = "killed by signal %d" % (cause & 0x7f)
+ if cause & 0x80:
+ msg = msg + " -- core dumped"
+ Dialog(self.master,
+ text=msg,
+ title="Exit status",
+ bitmap='warning',
+ default=0,
+ strings=('OK',))
+ return
+ self.insert(END, data)
+ self.pos = self.index("end - 1 char")
+ self.yview_pickplace(END)
+
+ def inputhandler(self, *args):
+ if not self.pid:
+ self.no_process()
+ return "break"
+ self.insert(END, "\n")
+ line = self.get(self.pos, "end - 1 char")
+ self.pos = self.index(END)
+ os.write(self.tochild, line)
+ return "break"
+
+ def sendeof(self, *args):
+ if not self.pid:
+ self.no_process()
+ return "break"
+ os.close(self.tochild)
+ return "break"
+
+ def sendsig(self, sig):
+ if not self.pid:
+ self.no_process()
+ return "break"
+ os.kill(self.pid, sig)
+ return "break"
+
+ def sigint(self, *args):
+ return self.sendsig(signal.SIGINT)
+
+ def sigquit(self, *args):
+ return self.sendsig(signal.SIGQUIT)
+
+ def sigterm(self, *args):
+ return self.sendsig(signal.SIGTERM)
+
+ def sigkill(self, *args):
+ return self.sendsig(signal.SIGKILL)
+
+ def no_process(self):
+ Dialog(self.master,
+ text="No active process",
+ title="No process",
+ bitmap='error',
+ default=0,
+ strings=('OK',))
+
+MAXFD = 100 # Max number of file descriptors (os.getdtablesize()???)
def spawn(prog, args):
- p2cread, p2cwrite = os.pipe()
- c2pread, c2pwrite = os.pipe()
- pid = os.fork()
- if pid == 0:
- # Child
- for i in 0, 1, 2:
- try:
- os.close(i)
- except os.error:
- pass
- if os.dup(p2cread) <> 0:
- sys.stderr.write('popen2: bad read dup\n')
- if os.dup(c2pwrite) <> 1:
- sys.stderr.write('popen2: bad write dup\n')
- if os.dup(c2pwrite) <> 2:
- sys.stderr.write('popen2: bad write dup\n')
- for i in range(3, MAXFD):
- try:
- os.close(i)
- except:
- pass
- try:
- os.execvp(prog, args)
- finally:
- sys.stderr.write('execvp failed\n')
- os._exit(1)
- os.close(p2cread)
- os.close(c2pwrite)
- return pid, c2pread, p2cwrite
+ p2cread, p2cwrite = os.pipe()
+ c2pread, c2pwrite = os.pipe()
+ pid = os.fork()
+ if pid == 0:
+ # Child
+ for i in 0, 1, 2:
+ try:
+ os.close(i)
+ except os.error:
+ pass
+ if os.dup(p2cread) <> 0:
+ sys.stderr.write('popen2: bad read dup\n')
+ if os.dup(c2pwrite) <> 1:
+ sys.stderr.write('popen2: bad write dup\n')
+ if os.dup(c2pwrite) <> 2:
+ sys.stderr.write('popen2: bad write dup\n')
+ for i in range(3, MAXFD):
+ try:
+ os.close(i)
+ except:
+ pass
+ try:
+ os.execvp(prog, args)
+ finally:
+ sys.stderr.write('execvp failed\n')
+ os._exit(1)
+ os.close(p2cread)
+ os.close(c2pwrite)
+ return pid, c2pread, p2cwrite
def test():
- shell = string.join(sys.argv[1:])
- root = Tk()
- root.minsize(1, 1)
- if shell:
- w = ShellWindow(root, shell=shell)
- else:
- w = ShellWindow(root)
- w.pack(expand=1, fill=BOTH)
- w.focus_set()
- w.tk.mainloop()
+ shell = string.join(sys.argv[1:])
+ root = Tk()
+ root.minsize(1, 1)
+ if shell:
+ w = ShellWindow(root, shell=shell)
+ else:
+ w = ShellWindow(root)
+ w.pack(expand=1, fill=BOTH)
+ w.focus_set()
+ w.tk.mainloop()
if __name__ == '__main__':
- test()
+ test()
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