630 lines
25 KiB
Python
630 lines
25 KiB
Python
# Code for reading data logs produced by data_logger.py
|
|
#
|
|
# Copyright (C) 2021 Kevin O'Connor <kevin@koconnor.net>
|
|
#
|
|
# This file may be distributed under the terms of the GNU GPLv3 license.
|
|
import json, zlib
|
|
|
|
class error(Exception):
|
|
pass
|
|
|
|
|
|
######################################################################
|
|
# Log data handlers
|
|
######################################################################
|
|
|
|
# Log data handlers: {name: class, ...}
|
|
LogHandlers = {}
|
|
|
|
# Extract status fields from log
|
|
class HandleStatusField:
|
|
SubscriptionIdParts = 0
|
|
ParametersMin = ParametersMax = 1
|
|
DataSets = [
|
|
('status(<field>)', 'A get_status field name (separate by periods)'),
|
|
]
|
|
def __init__(self, lmanager, name, name_parts):
|
|
self.status_tracker = lmanager.get_status_tracker()
|
|
self.field_name = name_parts[1]
|
|
self.field_parts = name_parts[1].split('.')
|
|
self.next_update_time = 0.
|
|
self.result = None
|
|
def get_label(self):
|
|
label = '%s field' % (self.field_name,)
|
|
return {'label': label, 'units': 'Unknown'}
|
|
def pull_data(self, req_time):
|
|
if req_time < self.next_update_time:
|
|
return self.result
|
|
db, next_update_time = self.status_tracker.pull_status(req_time)
|
|
for fp in self.field_parts[:-1]:
|
|
db = db.get(fp, {})
|
|
self.result = db.get(self.field_parts[-1], 0.)
|
|
self.next_update_time = next_update_time
|
|
return self.result
|
|
LogHandlers["status"] = HandleStatusField
|
|
|
|
# Extract requested position, velocity, and accel from a trapq log
|
|
class HandleTrapQ:
|
|
SubscriptionIdParts = 2
|
|
ParametersMin = ParametersMax = 2
|
|
DataSets = [
|
|
('trapq(<name>,velocity)', 'Requested velocity for the given trapq'),
|
|
('trapq(<name>,accel)', 'Requested acceleration for the given trapq'),
|
|
('trapq(<name>,<axis>)', 'Requested axis (x, y, or z) position'),
|
|
('trapq(<name>,<axis>_velocity)', 'Requested axis velocity'),
|
|
('trapq(<name>,<axis>_accel)', 'Requested axis acceleration'),
|
|
]
|
|
def __init__(self, lmanager, name, name_parts):
|
|
self.name = name
|
|
self.jdispatch = lmanager.get_jdispatch()
|
|
self.cur_data = [(0., 0., 0., 0., (0., 0., 0.), (0., 0., 0.))]
|
|
self.data_pos = 0
|
|
tq, trapq_name, datasel = name_parts
|
|
ptypes = {}
|
|
ptypes['velocity'] = {
|
|
'label': '%s velocity' % (trapq_name,),
|
|
'units': 'Velocity\n(mm/s)', 'func': self._pull_velocity
|
|
}
|
|
ptypes['accel'] = {
|
|
'label': '%s acceleration' % (trapq_name,),
|
|
'units': 'Acceleration\n(mm/s^2)', 'func': self._pull_accel
|
|
}
|
|
for axis, name in enumerate("xyz"):
|
|
ptypes['%s' % (name,)] = {
|
|
'label': '%s %s position' % (trapq_name, name), 'axis': axis,
|
|
'units': 'Position\n(mm)', 'func': self._pull_axis_position
|
|
}
|
|
ptypes['%s_velocity' % (name,)] = {
|
|
'label': '%s %s velocity' % (trapq_name, name), 'axis': axis,
|
|
'units': 'Velocity\n(mm/s)', 'func': self._pull_axis_velocity
|
|
}
|
|
ptypes['%s_accel' % (name,)] = {
|
|
'label': '%s %s acceleration' % (trapq_name, name),
|
|
'axis': axis, 'units': 'Acceleration\n(mm/s^2)',
|
|
'func': self._pull_axis_accel
|
|
}
|
|
pinfo = ptypes.get(datasel)
|
|
if pinfo is None:
|
|
raise error("Unknown trapq data selection '%s'" % (datasel,))
|
|
self.label = {'label': pinfo['label'], 'units': pinfo['units']}
|
|
self.axis = pinfo.get('axis')
|
|
self.pull_data = pinfo['func']
|
|
def get_label(self):
|
|
return self.label
|
|
def _find_move(self, req_time):
|
|
data_pos = self.data_pos
|
|
while 1:
|
|
move = self.cur_data[data_pos]
|
|
print_time, move_t, start_v, accel, start_pos, axes_r = move
|
|
if req_time <= print_time + move_t:
|
|
return move, req_time >= print_time
|
|
data_pos += 1
|
|
if data_pos < len(self.cur_data):
|
|
self.data_pos = data_pos
|
|
continue
|
|
jmsg = self.jdispatch.pull_msg(req_time, self.name)
|
|
if jmsg is None:
|
|
return move, False
|
|
self.cur_data = jmsg['data']
|
|
self.data_pos = data_pos = 0
|
|
def _pull_axis_position(self, req_time):
|
|
move, in_range = self._find_move(req_time)
|
|
print_time, move_t, start_v, accel, start_pos, axes_r = move
|
|
mtime = max(0., min(move_t, req_time - print_time))
|
|
dist = (start_v + .5 * accel * mtime) * mtime;
|
|
return start_pos[self.axis] + axes_r[self.axis] * dist
|
|
def _pull_axis_velocity(self, req_time):
|
|
move, in_range = self._find_move(req_time)
|
|
if not in_range:
|
|
return 0.
|
|
print_time, move_t, start_v, accel, start_pos, axes_r = move
|
|
return (start_v + accel * (req_time - print_time)) * axes_r[self.axis]
|
|
def _pull_axis_accel(self, req_time):
|
|
move, in_range = self._find_move(req_time)
|
|
if not in_range:
|
|
return 0.
|
|
print_time, move_t, start_v, accel, start_pos, axes_r = move
|
|
return accel * axes_r[self.axis]
|
|
def _pull_velocity(self, req_time):
|
|
move, in_range = self._find_move(req_time)
|
|
if not in_range:
|
|
return 0.
|
|
print_time, move_t, start_v, accel, start_pos, axes_r = move
|
|
return start_v + accel * (req_time - print_time)
|
|
def _pull_accel(self, req_time):
|
|
move, in_range = self._find_move(req_time)
|
|
if not in_range:
|
|
return 0.
|
|
print_time, move_t, start_v, accel, start_pos, axes_r = move
|
|
return accel
|
|
LogHandlers["trapq"] = HandleTrapQ
|
|
|
|
# Extract positions from queue_step log
|
|
class HandleStepQ:
|
|
SubscriptionIdParts = 2
|
|
ParametersMin = 1
|
|
ParametersMax = 2
|
|
DataSets = [
|
|
('stepq(<stepper>)', 'Commanded position of the given stepper'),
|
|
('stepq(<stepper>,<time>)', 'Commanded position with smooth time'),
|
|
]
|
|
def __init__(self, lmanager, name, name_parts):
|
|
self.name = name
|
|
self.stepper_name = name_parts[1]
|
|
self.jdispatch = lmanager.get_jdispatch()
|
|
self.step_data = [(0., 0., 0.), (0., 0., 0.)] # [(time, half_pos, pos)]
|
|
self.data_pos = 0
|
|
self.smooth_time = 0.010
|
|
if len(name_parts) == 3:
|
|
try:
|
|
self.smooth_time = float(name_parts[2])
|
|
except ValueError:
|
|
raise error("Invalid stepq smooth time '%s'" % (name_parts[2],))
|
|
def get_label(self):
|
|
label = '%s position' % (self.stepper_name,)
|
|
return {'label': label, 'units': 'Position\n(mm)'}
|
|
def pull_data(self, req_time):
|
|
smooth_time = self.smooth_time
|
|
while 1:
|
|
data_pos = self.data_pos
|
|
step_data = self.step_data
|
|
# Find steps before and after req_time
|
|
next_time, next_halfpos, next_pos = step_data[data_pos + 1]
|
|
if req_time >= next_time:
|
|
if data_pos + 2 < len(step_data):
|
|
self.data_pos = data_pos + 1
|
|
continue
|
|
self._pull_block(req_time)
|
|
continue
|
|
last_time, last_halfpos, last_pos = step_data[data_pos]
|
|
# Perform step smoothing
|
|
rtdiff = req_time - last_time
|
|
stime = next_time - last_time
|
|
if stime <= smooth_time:
|
|
pdiff = next_halfpos - last_halfpos
|
|
return last_halfpos + rtdiff * pdiff / stime
|
|
stime = .5 * smooth_time
|
|
if rtdiff < stime:
|
|
pdiff = last_pos - last_halfpos
|
|
return last_halfpos + rtdiff * pdiff / stime
|
|
rtdiff = next_time - req_time
|
|
if rtdiff < stime:
|
|
pdiff = last_pos - next_halfpos
|
|
return next_halfpos + rtdiff * pdiff / stime
|
|
return last_pos
|
|
def _pull_block(self, req_time):
|
|
step_data = self.step_data
|
|
del step_data[:-1]
|
|
self.data_pos = 0
|
|
# Read data block containing requested time frame
|
|
while 1:
|
|
jmsg = self.jdispatch.pull_msg(req_time, self.name)
|
|
if jmsg is None:
|
|
last_time, last_halfpos, last_pos = step_data[0]
|
|
self.step_data.append((req_time + .1, last_pos, last_pos))
|
|
return
|
|
last_time = jmsg['last_step_time']
|
|
if req_time <= last_time:
|
|
break
|
|
# Process block into (time, half_position, position) 3-tuples
|
|
first_time = step_time = jmsg['first_step_time']
|
|
first_clock = jmsg['first_clock']
|
|
step_clock = first_clock - jmsg['data'][0][0]
|
|
cdiff = jmsg['last_clock'] - first_clock
|
|
tdiff = last_time - first_time
|
|
inv_freq = 0.
|
|
if cdiff:
|
|
inv_freq = tdiff / cdiff
|
|
step_dist = jmsg['step_distance']
|
|
step_pos = jmsg['start_position']
|
|
for interval, raw_count, add in jmsg['data']:
|
|
qs_dist = step_dist
|
|
count = raw_count
|
|
if count < 0:
|
|
qs_dist = -qs_dist
|
|
count = -count
|
|
for i in range(count):
|
|
step_clock += interval
|
|
interval += add
|
|
step_time = first_time + (step_clock - first_clock) * inv_freq
|
|
step_halfpos = step_pos + .5 * qs_dist
|
|
step_pos += qs_dist
|
|
step_data.append((step_time, step_halfpos, step_pos))
|
|
LogHandlers["stepq"] = HandleStepQ
|
|
|
|
# Extract stepper motor phase position
|
|
class HandleStepPhase:
|
|
SubscriptionIdParts = 0
|
|
ParametersMin = 1
|
|
ParametersMax = 2
|
|
DataSets = [
|
|
('step_phase(<driver>)', 'Stepper motor phase of the given stepper'),
|
|
('step_phase(<driver>,microstep)', 'Microstep position for stepper'),
|
|
]
|
|
def __init__(self, lmanager, name, name_parts):
|
|
self.name = name
|
|
self.driver_name = name_parts[1]
|
|
self.stepper_name = " ".join(self.driver_name.split()[1:])
|
|
config = lmanager.get_initial_status()['configfile']['settings']
|
|
if self.driver_name not in config or self.stepper_name not in config:
|
|
raise error("Unable to find stepper driver '%s' config"
|
|
% (self.driver_name,))
|
|
if len(name_parts) == 3 and name_parts[2] != "microstep":
|
|
raise error("Unknown step_phase selection '%s'" % (name_parts[2],))
|
|
self.report_microsteps = len(name_parts) == 3
|
|
sconfig = config[self.stepper_name]
|
|
self.phases = sconfig["microsteps"]
|
|
if not self.report_microsteps:
|
|
self.phases *= 4
|
|
self.jdispatch = lmanager.get_jdispatch()
|
|
self.jdispatch.add_handler(name, "stepq:" + self.stepper_name)
|
|
# stepq tracking
|
|
self.step_data = [(0., 0), (0., 0)] # [(time, mcu_pos)]
|
|
self.data_pos = 0
|
|
# driver phase tracking
|
|
self.status_tracker = lmanager.get_status_tracker()
|
|
self.next_status_time = 0.
|
|
self.mcu_phase_offset = 0
|
|
def get_label(self):
|
|
if self.report_microsteps:
|
|
return {'label': '%s microstep' % (self.stepper_name,),
|
|
'units': 'Microstep'}
|
|
return {'label': '%s phase' % (self.stepper_name,), 'units': 'Phase'}
|
|
def _pull_phase_offset(self, req_time):
|
|
db, self.next_status_time = self.status_tracker.pull_status(req_time)
|
|
mcu_phase_offset = db.get(self.driver_name, {}).get('mcu_phase_offset')
|
|
if mcu_phase_offset is None:
|
|
mcu_phase_offset = 0
|
|
self.mcu_phase_offset = mcu_phase_offset
|
|
def pull_data(self, req_time):
|
|
if req_time >= self.next_status_time:
|
|
self._pull_phase_offset(req_time)
|
|
while 1:
|
|
data_pos = self.data_pos
|
|
step_data = self.step_data
|
|
# Find steps before and after req_time
|
|
next_time, next_pos = step_data[data_pos + 1]
|
|
if req_time >= next_time:
|
|
if data_pos + 2 < len(step_data):
|
|
self.data_pos = data_pos + 1
|
|
continue
|
|
self._pull_block(req_time)
|
|
continue
|
|
step_pos = step_data[data_pos][1]
|
|
return (step_pos - self.mcu_phase_offset) % self.phases
|
|
def _pull_block(self, req_time):
|
|
step_data = self.step_data
|
|
del step_data[:-1]
|
|
self.data_pos = 0
|
|
# Read data block containing requested time frame
|
|
while 1:
|
|
jmsg = self.jdispatch.pull_msg(req_time, self.name)
|
|
if jmsg is None:
|
|
last_time, last_pos = step_data[0]
|
|
self.step_data.append((req_time + .1, last_pos))
|
|
return
|
|
last_time = jmsg['last_step_time']
|
|
if req_time <= last_time:
|
|
break
|
|
# Process block into (time, position) 2-tuples
|
|
first_time = step_time = jmsg['first_step_time']
|
|
first_clock = jmsg['first_clock']
|
|
step_clock = first_clock - jmsg['data'][0][0]
|
|
cdiff = jmsg['last_clock'] - first_clock
|
|
tdiff = last_time - first_time
|
|
inv_freq = 0.
|
|
if cdiff:
|
|
inv_freq = tdiff / cdiff
|
|
step_pos = jmsg['start_mcu_position']
|
|
for interval, raw_count, add in jmsg['data']:
|
|
qs_dist = 1
|
|
count = raw_count
|
|
if count < 0:
|
|
qs_dist = -1
|
|
count = -count
|
|
for i in range(count):
|
|
step_clock += interval
|
|
interval += add
|
|
step_time = first_time + (step_clock - first_clock) * inv_freq
|
|
step_pos += qs_dist
|
|
step_data.append((step_time, step_pos))
|
|
LogHandlers["step_phase"] = HandleStepPhase
|
|
|
|
# Extract accelerometer data
|
|
class HandleADXL345:
|
|
SubscriptionIdParts = 2
|
|
ParametersMin = ParametersMax = 2
|
|
DataSets = [
|
|
('adxl345(<name>,<axis>)', 'Accelerometer for given axis (x, y, or z)'),
|
|
]
|
|
def __init__(self, lmanager, name, name_parts):
|
|
self.name = name
|
|
self.adxl_name = name_parts[1]
|
|
self.jdispatch = lmanager.get_jdispatch()
|
|
self.next_accel_time = self.last_accel_time = 0.
|
|
self.next_accel = self.last_accel = (0., 0., 0.)
|
|
self.cur_data = []
|
|
self.data_pos = 0
|
|
if name_parts[2] not in 'xyz':
|
|
raise error("Unknown adxl345 data selection '%s'" % (name,))
|
|
self.axis = 'xyz'.index(name_parts[2])
|
|
def get_label(self):
|
|
label = '%s %s acceleration' % (self.adxl_name, 'xyz'[self.axis])
|
|
return {'label': label, 'units': 'Acceleration\n(mm/s^2)'}
|
|
def pull_data(self, req_time):
|
|
axis = self.axis
|
|
while 1:
|
|
if req_time <= self.next_accel_time:
|
|
adiff = self.next_accel[axis] - self.last_accel[axis]
|
|
tdiff = self.next_accel_time - self.last_accel_time
|
|
rtdiff = req_time - self.last_accel_time
|
|
return self.last_accel[axis] + rtdiff * adiff / tdiff
|
|
if self.data_pos >= len(self.cur_data):
|
|
# Read next data block
|
|
jmsg = self.jdispatch.pull_msg(req_time, self.name)
|
|
if jmsg is None:
|
|
return 0.
|
|
self.cur_data = jmsg['data']
|
|
self.data_pos = 0
|
|
continue
|
|
self.last_accel = self.next_accel
|
|
self.last_accel_time = self.next_accel_time
|
|
self.next_accel_time, x, y, z = self.cur_data[self.data_pos]
|
|
self.next_accel = (x, y, z)
|
|
self.data_pos += 1
|
|
LogHandlers["adxl345"] = HandleADXL345
|
|
|
|
# Extract positions from magnetic angle sensor
|
|
class HandleAngle:
|
|
SubscriptionIdParts = 2
|
|
ParametersMin = ParametersMax = 1
|
|
DataSets = [
|
|
('angle(<name>)', 'Angle sensor position'),
|
|
]
|
|
def __init__(self, lmanager, name, name_parts):
|
|
self.name = name
|
|
self.angle_name = name_parts[1]
|
|
self.jdispatch = lmanager.get_jdispatch()
|
|
self.next_angle_time = self.last_angle_time = 0.
|
|
self.next_angle = self.last_angle = 0.
|
|
self.cur_data = []
|
|
self.data_pos = 0
|
|
self.position_offset = 0.
|
|
self.angle_dist = 1.
|
|
# Determine angle distance from associated stepper's rotation_distance
|
|
config = lmanager.get_initial_status()['configfile']['settings']
|
|
aname = 'angle %s' % (self.angle_name,)
|
|
stepper_name = config.get(aname, {}).get('stepper')
|
|
if stepper_name is not None:
|
|
sconfig = config.get(stepper_name, {})
|
|
rotation_distance = sconfig.get('rotation_distance', 1.)
|
|
gear_ratio = sconfig.get('gear_ratio', ())
|
|
if type(gear_ratio) == str: # XXX
|
|
gear_ratio = [[float(v.strip()) for v in gr.split(':')]
|
|
for gr in gear_ratio.split(',')]
|
|
for n, d in gear_ratio:
|
|
rotation_distance *= d / n
|
|
self.angle_dist = rotation_distance / 65536.
|
|
def get_label(self):
|
|
label = '%s position' % (self.angle_name,)
|
|
return {'label': label, 'units': 'Position\n(mm)'}
|
|
def pull_data(self, req_time):
|
|
while 1:
|
|
if req_time <= self.next_angle_time:
|
|
pdiff = self.next_angle - self.last_angle
|
|
tdiff = self.next_angle_time - self.last_angle_time
|
|
rtdiff = req_time - self.last_angle_time
|
|
po = rtdiff * pdiff / tdiff
|
|
return ((self.last_angle + po) * self.angle_dist
|
|
+ self.position_offset)
|
|
if self.data_pos >= len(self.cur_data):
|
|
# Read next data block
|
|
jmsg = self.jdispatch.pull_msg(req_time, self.name)
|
|
if jmsg is None:
|
|
return (self.next_angle * self.angle_dist
|
|
+ self.position_offset)
|
|
self.cur_data = jmsg['data']
|
|
position_offset = jmsg.get('position_offset')
|
|
if position_offset is not None:
|
|
self.position_offset = position_offset
|
|
self.data_pos = 0
|
|
continue
|
|
self.last_angle = self.next_angle
|
|
self.last_angle_time = self.next_angle_time
|
|
self.next_angle_time, self.next_angle = self.cur_data[self.data_pos]
|
|
self.data_pos += 1
|
|
LogHandlers["angle"] = HandleAngle
|
|
|
|
|
|
######################################################################
|
|
# Log reading
|
|
######################################################################
|
|
|
|
# Read, uncompress, and parse messages in a log built by data_logger.py
|
|
class JsonLogReader:
|
|
def __init__(self, filename):
|
|
self.file = open(filename, "rb")
|
|
self.comp = zlib.decompressobj(31)
|
|
self.msgs = [b""]
|
|
def seek(self, pos):
|
|
self.file.seek(pos)
|
|
self.comp = zlib.decompressobj(-15)
|
|
def pull_msg(self):
|
|
msgs = self.msgs
|
|
while 1:
|
|
if len(msgs) > 1:
|
|
msg = msgs.pop(0)
|
|
try:
|
|
json_msg = json.loads(msg)
|
|
except:
|
|
logging.exception("Unable to parse line")
|
|
continue
|
|
return json_msg
|
|
raw_data = self.file.read(8192)
|
|
if not raw_data:
|
|
return None
|
|
data = self.comp.decompress(raw_data)
|
|
parts = data.split(b'\x03')
|
|
parts[0] = msgs[0] + parts[0]
|
|
self.msgs = msgs = parts
|
|
|
|
# Store messages in per-subscription queues until handlers are ready for them
|
|
class JsonDispatcher:
|
|
def __init__(self, log_prefix):
|
|
self.names = {}
|
|
self.queues = {}
|
|
self.last_read_time = 0.
|
|
self.log_reader = JsonLogReader(log_prefix + ".json.gz")
|
|
self.is_eof = False
|
|
def check_end_of_data(self):
|
|
return self.is_eof and not any(self.queues.values())
|
|
def add_handler(self, name, subscription_id):
|
|
self.names[name] = q = []
|
|
self.queues.setdefault(subscription_id, []).append(q)
|
|
def pull_msg(self, req_time, name):
|
|
q = self.names[name]
|
|
while 1:
|
|
if q:
|
|
return q.pop(0)
|
|
if req_time + 1. < self.last_read_time:
|
|
return None
|
|
json_msg = self.log_reader.pull_msg()
|
|
if json_msg is None:
|
|
self.is_eof = True
|
|
return None
|
|
qid = json_msg.get('q')
|
|
if qid == 'status':
|
|
pt = json_msg.get('toolhead', {}).get('estimated_print_time')
|
|
if pt is not None:
|
|
self.last_read_time = pt
|
|
for mq in self.queues.get(qid, []):
|
|
mq.append(json_msg['params'])
|
|
|
|
|
|
######################################################################
|
|
# Dataset and log tracking
|
|
######################################################################
|
|
|
|
# Tracking of get_status messages
|
|
class TrackStatus:
|
|
def __init__(self, lmanager, name, start_status):
|
|
self.name = name
|
|
self.jdispatch = lmanager.get_jdispatch()
|
|
self.next_status_time = 0.
|
|
self.status = dict(start_status)
|
|
self.next_update = {}
|
|
def pull_status(self, req_time):
|
|
status = self.status
|
|
while 1:
|
|
if req_time < self.next_status_time:
|
|
return status, self.next_status_time
|
|
for k, v in self.next_update.items():
|
|
status.setdefault(k, {}).update(v)
|
|
jmsg = self.jdispatch.pull_msg(req_time, self.name)
|
|
if jmsg is None:
|
|
self.next_status_time = req_time + 0.100
|
|
self.next_update = {}
|
|
return status, self.next_status_time
|
|
self.next_update = jmsg['status']
|
|
th = self.next_update.get('toolhead', {})
|
|
self.next_status_time = th.get('estimated_print_time', 0.)
|
|
|
|
# Split a string by commas while keeping parenthesis intact
|
|
def param_split(line):
|
|
out = []
|
|
level = prev = 0
|
|
for i, c in enumerate(line):
|
|
if not level and c == ',':
|
|
out.append(line[prev:i])
|
|
prev = i+1
|
|
elif c == '(':
|
|
level += 1
|
|
elif level and c== ')':
|
|
level -= 1
|
|
out.append(line[prev:])
|
|
return out
|
|
|
|
# Split a dataset name (eg, "abc(def,ghi)") into parts
|
|
def name_split(name):
|
|
if '(' not in name or not name.endswith(')'):
|
|
raise error("Malformed dataset name '%s'" % (name,))
|
|
aname, aparams = name.split('(', 1)
|
|
return [aname] + param_split(aparams[:-1])
|
|
|
|
# Return a description of possible datasets
|
|
def list_datasets():
|
|
datasets = []
|
|
for lh in sorted(LogHandlers.keys()):
|
|
datasets += LogHandlers[lh].DataSets
|
|
return datasets
|
|
|
|
# Main log access management
|
|
class LogManager:
|
|
error = error
|
|
def __init__(self, log_prefix):
|
|
self.index_reader = JsonLogReader(log_prefix + ".index.gz")
|
|
self.jdispatch = JsonDispatcher(log_prefix)
|
|
self.initial_start_time = self.start_time = 0.
|
|
self.datasets = {}
|
|
self.initial_status = {}
|
|
self.start_status = {}
|
|
self.log_subscriptions = {}
|
|
self.status_tracker = None
|
|
def setup_index(self):
|
|
fmsg = self.index_reader.pull_msg()
|
|
self.initial_status = status = fmsg['status']
|
|
self.start_status = dict(status)
|
|
start_time = status['toolhead']['estimated_print_time']
|
|
self.initial_start_time = self.start_time = start_time
|
|
self.log_subscriptions = fmsg.get('subscriptions', {})
|
|
def get_initial_status(self):
|
|
return self.initial_status
|
|
def available_dataset_types(self):
|
|
return {name: None for name in LogHandlers}
|
|
def get_jdispatch(self):
|
|
return self.jdispatch
|
|
def seek_time(self, req_time):
|
|
self.start_time = req_start_time = self.initial_start_time + req_time
|
|
start_status = self.start_status
|
|
seek_time = max(self.initial_start_time, req_start_time - 1.)
|
|
file_position = 0
|
|
while 1:
|
|
fmsg = self.index_reader.pull_msg()
|
|
if fmsg is None:
|
|
break
|
|
th = fmsg['status']['toolhead']
|
|
ptime = max(th['estimated_print_time'], th.get('print_time', 0.))
|
|
if ptime > seek_time:
|
|
break
|
|
for k, v in fmsg["status"].items():
|
|
start_status.setdefault(k, {}).update(v)
|
|
file_position = fmsg['file_position']
|
|
if file_position:
|
|
self.jdispatch.log_reader.seek(file_position)
|
|
def get_initial_start_time(self):
|
|
return self.initial_start_time
|
|
def get_start_time(self):
|
|
return self.start_time
|
|
def get_status_tracker(self):
|
|
if self.status_tracker is None:
|
|
self.status_tracker = TrackStatus(self, "status", self.start_status)
|
|
self.jdispatch.add_handler("status", "status")
|
|
return self.status_tracker
|
|
def setup_dataset(self, name):
|
|
if name in self.datasets:
|
|
return self.datasets[name]
|
|
name_parts = name_split(name)
|
|
cls = LogHandlers.get(name_parts[0])
|
|
if cls is None:
|
|
raise error("Unknown dataset '%s'" % (name_parts[0],))
|
|
len_pp = len(name_parts) - 1
|
|
if len_pp < cls.ParametersMin or len_pp > cls.ParametersMax:
|
|
raise error("Invalid number of parameters for '%s'" % (name,))
|
|
if cls.SubscriptionIdParts:
|
|
subscription_id = ":".join(name_parts[:cls.SubscriptionIdParts])
|
|
if subscription_id not in self.log_subscriptions:
|
|
raise error("Dataset '%s' not in capture" % (subscription_id,))
|
|
self.jdispatch.add_handler(name, subscription_id)
|
|
self.datasets[name] = hdl = cls(self, name, name_parts)
|
|
return hdl
|