113 lines
4.8 KiB
Python
113 lines
4.8 KiB
Python
# Support for disabling the printer on an idle timeout
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#
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# Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import logging
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DEFAULT_IDLE_GCODE = """
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TURN_OFF_HEATERS
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M84
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"""
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PIN_MIN_TIME = 0.100
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READY_TIMEOUT = .500
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class IdleTimeout:
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def __init__(self, config):
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self.printer = config.get_printer()
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self.reactor = self.printer.get_reactor()
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self.gcode = self.printer.lookup_object('gcode')
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self.toolhead = self.timeout_timer = None
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self.printer.register_event_handler("klippy:ready", self.handle_ready)
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self.idle_timeout = config.getfloat('timeout', 600., above=0.)
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gcode_macro = self.printer.load_object(config, 'gcode_macro')
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self.idle_gcode = gcode_macro.load_template(config, 'gcode',
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DEFAULT_IDLE_GCODE)
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self.gcode.register_command('SET_IDLE_TIMEOUT',
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self.cmd_SET_IDLE_TIMEOUT,
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desc=self.cmd_SET_IDLE_TIMEOUT_help)
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self.state = "Idle"
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self.last_print_start_systime = 0.
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def get_status(self, eventtime):
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printing_time = 0.
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if self.state == "Printing":
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printing_time = eventtime - self.last_print_start_systime
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return { "state": self.state, "printing_time": printing_time }
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def handle_ready(self):
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self.toolhead = self.printer.lookup_object('toolhead')
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self.timeout_timer = self.reactor.register_timer(self.timeout_handler)
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self.printer.register_event_handler("toolhead:sync_print_time",
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self.handle_sync_print_time)
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def transition_idle_state(self, eventtime):
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self.state = "Printing"
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try:
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script = self.idle_gcode.render()
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res = self.gcode.run_script(script)
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except:
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logging.exception("idle timeout gcode execution")
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self.state = "Ready"
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return eventtime + 1.
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print_time = self.toolhead.get_last_move_time()
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self.state = "Idle"
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self.printer.send_event("idle_timeout:idle", print_time)
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return self.reactor.NEVER
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def check_idle_timeout(self, eventtime):
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# Make sure toolhead class isn't busy
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print_time, est_print_time, lookahead_empty = self.toolhead.check_busy(
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eventtime)
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idle_time = est_print_time - print_time
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if not lookahead_empty or idle_time < 1.:
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# Toolhead is busy
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return eventtime + self.idle_timeout
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if idle_time < self.idle_timeout:
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# Wait for idle timeout
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return eventtime + self.idle_timeout - idle_time
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if self.gcode.get_mutex().test():
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# Gcode class busy
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return eventtime + 1.
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# Idle timeout has elapsed
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return self.transition_idle_state(eventtime)
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def timeout_handler(self, eventtime):
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if self.state == "Ready":
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return self.check_idle_timeout(eventtime)
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# Check if need to transition to "ready" state
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print_time, est_print_time, lookahead_empty = self.toolhead.check_busy(
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eventtime)
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buffer_time = min(2., print_time - est_print_time)
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if not lookahead_empty:
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# Toolhead is busy
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return eventtime + READY_TIMEOUT + max(0., buffer_time)
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if buffer_time > -READY_TIMEOUT:
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# Wait for ready timeout
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return eventtime + READY_TIMEOUT + buffer_time
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if self.gcode.get_mutex().test():
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# Gcode class busy
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return eventtime + READY_TIMEOUT
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# Transition to "ready" state
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self.state = "Ready"
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self.printer.send_event("idle_timeout:ready",
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est_print_time + PIN_MIN_TIME)
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return eventtime + self.idle_timeout
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def handle_sync_print_time(self, curtime, print_time, est_print_time):
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if self.state == "Printing":
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return
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# Transition to "printing" state
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self.state = "Printing"
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self.last_print_start_systime = curtime
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check_time = READY_TIMEOUT + print_time - est_print_time
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self.reactor.update_timer(self.timeout_timer, curtime + check_time)
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self.printer.send_event("idle_timeout:printing",
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est_print_time + PIN_MIN_TIME)
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cmd_SET_IDLE_TIMEOUT_help = "Set the idle timeout in seconds"
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def cmd_SET_IDLE_TIMEOUT(self, gcmd):
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timeout = gcmd.get_float('TIMEOUT', self.idle_timeout, above=0.)
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self.idle_timeout = timeout
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gcmd.respond_info("idle_timeout: Timeout set to %.2f s" % (timeout,))
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if self.state == "Ready":
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checktime = self.reactor.monotonic() + timeout
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self.reactor.update_timer(self.timeout_timer, checktime)
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def load_config(config):
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return IdleTimeout(config)
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