def thread_setup():
"""Called once when the program starts."""
aid = get_aid()
gcdata.main_thread = aid
gcdata.active_thread = aid
gcdata.thread_stacks = AddressDict() # {aid: root_stack_top}
gcdata._fresh_rootstack = llmemory.NULL
gcdata.dead_threads_count = 0
def __init__(self, gc, fd):
self.gc = gc
self.gcflag = gc.gcflag_extra
self.fd = rffi.cast(rffi.INT, fd)
self.writebuffer = lltype.malloc(rffi.LONGP.TO, self.BUFSIZE,
flavor='raw')
self.buf_count = 0
if self.gcflag == 0:
self.seen = AddressDict()
self.pending = AddressStack()
def debug_check_consistency(self):
"""To use after a collection. If self.DEBUG is set, this
enumerates all roots and traces all objects to check if we didn't
accidentally free a reachable object or forgot to update a pointer
to an object that moved.
"""
if self.DEBUG:
from pypy.rlib.objectmodel import we_are_translated
from pypy.rpython.memory.support import AddressDict
self._debug_seen = AddressDict()
self._debug_pending = self.AddressStack()
if not we_are_translated():
self.root_walker._walk_prebuilt_gc(self._debug_record)
self.enumerate_all_roots(GCBase._debug_callback, self)
pending = self._debug_pending
while pending.non_empty():
obj = pending.pop()
self.trace(obj, self._debug_callback2, None)
self._debug_seen.delete()
self._debug_pending.delete()
def thread_setup():
gcdata.aid2stack = AddressDict()
gcdata.dead_threads_count = 0
# to also register the main thread's stack
thread_start()
