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# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
import six
import gdb
from libreoffice.util import printing
class ImplSchedulerDataPrinter(object):
'''Prints the ImplSchedulerData linked list.
This can be used to dump the current state of the scheduler via:
p *ImplGetSVData()->mpFirstSchedulerData
This doesn't include currently invoked tasks AKA the stack.
To dump the scheduler stack of invoked tasks use:
p *ImplGetSVData()->mpSchedulerStack
'''
def __init__(self, typename, value):
self.typename = typename
self.value = value
self.timer_type_ptr = gdb.lookup_type("Timer").pointer()
self.idle_type_ptr = gdb.lookup_type("Idle").pointer()
def as_string(self, gdbobj):
if gdbobj['mpTask']:
task = gdbobj['mpTask'].dereference()
timer = gdbobj['mpTask'].dynamic_cast( self.timer_type_ptr )
idle = gdbobj['mpTask'].dynamic_cast( self.idle_type_ptr )
if idle:
task_type = "Idle"
elif timer:
task_type = "Timer"
else:
task_type = "Task"
res = "{:7s}{:10s} active: {:6s}".format( task_type, str(task['mePriority']), str(task['mbActive']) )
name = task['mpDebugName']
if not name:
res = res + " (task debug name not set)"
else:
res = "{} '{}' ({})".format(res, str(name.string()), str(task.dynamic_type))
val_type = gdb.lookup_type(str( task.dynamic_type )).pointer()
timer = gdbobj['mpTask'].cast( val_type )
if (task_type == "Timer"):
res = "{}: {}ms".format(res, timer['mnTimeout'])
else:
assert 0 == timer['mnTimeout'], "Idle with timeout == {}".format( timer['mnTimeout'] )
return res
else:
return "(no task)"
def to_string(self):
return self.typename
def children(self):
return self._iterator(self)
def display_hint(self):
return 'array'
class _iterator(six.Iterator):
def __init__(self, printer):
self.pos = 0
self.printer = printer
self.value = printer.value
def __iter__(self):
return self
def __next__(self):
if not self.value['mpNext']:
raise StopIteration()
pos = str(self.pos)
name = "\n " + self.printer.as_string(self.value)
self.value = self.value['mpNext']
self.pos += 1
return (pos, name)
printer = None
def build_pretty_printers():
global printer
printer = printing.Printer("libreoffice/vcl")
printer.add('ImplSchedulerData', ImplSchedulerDataPrinter)
def register_pretty_printers(obj):
printing.register_pretty_printer(printer, obj)
build_pretty_printers()
# vim:set shiftwidth=4 softtabstop=4 expandtab:
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