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menu: Queue g-code commands to avoid command reordering 

The gcode.run_script() code can pause which can result in the menu
code being called reentrant - avoid that by queuing the gcode commands
within the menu code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-09-02 12:14:27 -04:00
parent b656792616
commit ce79b6ca00
1 changed files with 21 additions and 11 deletions
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32
klippy/extras/display/menu.py
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@ -512,7 +512,7 @@ class MenuInput(MenuCommand):
return self._input_value is not None return self._input_value is not None
def _onchange(self): def _onchange(self):
self._manager.run_script(self.get_gcode()) self._manager.queue_gcode(self.get_gcode())
def init_value(self): def init_value(self):
self._input_value = None self._input_value = None
@ -901,6 +901,7 @@ class MenuManager:
self.lcd_chip = lcd_chip self.lcd_chip = lcd_chip
self.printer = config.get_printer() self.printer = config.get_printer()
self.gcode = self.printer.lookup_object('gcode') self.gcode = self.printer.lookup_object('gcode')
self.gcode_queue = []
self.parameters = {} self.parameters = {}
self.objs = {} self.objs = {}
self.root = None self.root = None
@ -1111,8 +1112,8 @@ class MenuManager:
raise error("Wrong type, expected MenuContainer") raise error("Wrong type, expected MenuContainer")
top = self.stack_peek() top = self.stack_peek()
if top is not None: if top is not None:
self.run_script(top.get_leave_gcode()) self.queue_gcode(top.get_leave_gcode())
self.run_script(container.get_enter_gcode()) self.queue_gcode(container.get_enter_gcode())
if not container.is_editing(): if not container.is_editing():
container.update_items() container.update_items()
self.menustack.append(container) self.menustack.append(container)
@ -1129,10 +1130,10 @@ class MenuManager:
raise error("Wrong type, expected MenuContainer") raise error("Wrong type, expected MenuContainer")
if not top.is_editing(): if not top.is_editing():
top.update_items() top.update_items()
self.run_script(container.get_leave_gcode()) self.queue_gcode(container.get_leave_gcode())
self.run_script(top.get_enter_gcode()) self.queue_gcode(top.get_enter_gcode())
else: else:
self.run_script(container.get_leave_gcode()) self.queue_gcode(container.get_leave_gcode())
return container return container
def stack_size(self): def stack_size(self):
@ -1307,13 +1308,13 @@ class MenuManager:
self.selected = 0 self.selected = 0
elif isinstance(current, MenuInput): elif isinstance(current, MenuInput):
if current.is_editing(): if current.is_editing():
self.run_script(current.get_gcode()) self.queue_gcode(current.get_gcode())
current.reset_value() current.reset_value()
else: else:
current.init_value() current.init_value()
elif isinstance(current, MenuCommand): elif isinstance(current, MenuCommand):
current() current()
self.run_script(current.get_gcode()) self.queue_gcode(current.get_gcode())
def exit(self, force=False): def exit(self, force=False):
container = self.stack_peek() container = self.stack_peek()
@ -1322,7 +1323,7 @@ class MenuManager:
if (not force and isinstance(current, (MenuInput, MenuGroup)) if (not force and isinstance(current, (MenuInput, MenuGroup))
and current.is_editing()): and current.is_editing()):
return return
self.run_script(container.get_leave_gcode()) self.queue_gcode(container.get_leave_gcode())
self.running = False self.running = False
def run_action(self, action, *args): def run_action(self, action, *args):
@ -1339,12 +1340,21 @@ class MenuManager:
except Exception: except Exception:
logging.exception("Malformed action call") logging.exception("Malformed action call")
def run_script(self, script): def queue_gcode(self, script):
if script is not None: if script is None:
return
if not self.gcode_queue:
reactor = self.printer.get_reactor()
reactor.register_callback(self.dispatch_gcode)
self.gcode_queue.append(script)
def dispatch_gcode(self, eventtime):
while self.gcode_queue:
script = self.gcode_queue[0]
try: try:
self.gcode.run_script(script) self.gcode.run_script(script)
except Exception: except Exception:
logging.exception("Script running error") logging.exception("Script running error")
self.gcode_queue.pop(0)
def add_menuitem(self, name, menu): def add_menuitem(self, name, menu):
if name in self.menuitems: if name in self.menuitems: