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#! /usr/bin/env python
# encoding: utf-8
# WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
import random
try:
from queue import Queue
except ImportError:
from Queue import Queue
from waflib import Utils,Task,Errors,Logs
GAP=20
class Consumer(Utils.threading.Thread):
__slots__=('task','spawner')
def __init__(self,spawner,task):
Utils.threading.Thread.__init__(self)
self.task=task
self.spawner=spawner
self.setDaemon(1)
self.start()
def run(self):
try:
if not self.spawner.master.stop:
self.task.process()
finally:
self.spawner.sem.release()
self.spawner.master.out.put(self.task)
self.task=None
self.spawner=None
class Spawner(Utils.threading.Thread):
def __init__(self,master):
Utils.threading.Thread.__init__(self)
self.master=master
self.sem=Utils.threading.Semaphore(master.numjobs)
self.setDaemon(1)
self.start()
def run(self):
try:
self.loop()
except Exception:
pass
def loop(self):
master=self.master
while 1:
task=master.ready.get()
self.sem.acquire()
task.log_display(task.generator.bld)
Consumer(self,task)
class Parallel(object):
def __init__(self,bld,j=2):
self.numjobs=j
self.bld=bld
self.outstanding=Utils.deque()
self.frozen=Utils.deque()
self.ready=Queue(0)
self.out=Queue(0)
self.count=0
self.processed=1
self.stop=False
self.error=[]
self.biter=None
self.dirty=False
self.spawner=Spawner(self)
def get_next_task(self):
if not self.outstanding:
return None
return self.outstanding.popleft()
def postpone(self,tsk):
if random.randint(0,1):
self.frozen.appendleft(tsk)
else:
self.frozen.append(tsk)
def refill_task_list(self):
while self.count>self.numjobs*GAP:
self.get_out()
while not self.outstanding:
if self.count:
self.get_out()
elif self.frozen:
try:
cond=self.deadlock==self.processed
except AttributeError:
pass
else:
if cond:
msg='check the build order for the tasks'
for tsk in self.frozen:
if not tsk.run_after:
msg='check the methods runnable_status'
break
lst=[]
for tsk in self.frozen:
lst.append('%s\t-> %r'%(repr(tsk),[id(x)for x in tsk.run_after]))
raise Errors.WafError('Deadlock detected: %s%s'%(msg,''.join(lst)))
self.deadlock=self.processed
if self.frozen:
self.outstanding.extend(self.frozen)
self.frozen.clear()
elif not self.count:
self.outstanding.extend(self.biter.next())
self.total=self.bld.total()
break
def add_more_tasks(self,tsk):
if getattr(tsk,'more_tasks',None):
self.outstanding.extend(tsk.more_tasks)
self.total+=len(tsk.more_tasks)
def get_out(self):
tsk=self.out.get()
if not self.stop:
self.add_more_tasks(tsk)
self.count-=1
self.dirty=True
return tsk
def add_task(self,tsk):
self.ready.put(tsk)
def skip(self,tsk):
tsk.hasrun=Task.SKIPPED
def error_handler(self,tsk):
if hasattr(tsk,'scan')and hasattr(tsk,'uid'):
try:
del self.bld.imp_sigs[tsk.uid()]
except KeyError:
pass
if not self.bld.keep:
self.stop=True
self.error.append(tsk)
def task_status(self,tsk):
try:
return tsk.runnable_status()
except Exception:
self.processed+=1
tsk.err_msg=Utils.ex_stack()
if not self.stop and self.bld.keep:
self.skip(tsk)
if self.bld.keep==1:
if Logs.verbose>1 or not self.error:
self.error.append(tsk)
self.stop=True
else:
if Logs.verbose>1:
self.error.append(tsk)
return Task.EXCEPTION
tsk.hasrun=Task.EXCEPTION
self.error_handler(tsk)
return Task.EXCEPTION
def start(self):
self.total=self.bld.total()
while not self.stop:
self.refill_task_list()
tsk=self.get_next_task()
if not tsk:
if self.count:
continue
else:
break
if tsk.hasrun:
self.processed+=1
continue
if self.stop:
break
st=self.task_status(tsk)
if st==Task.RUN_ME:
self.count+=1
self.processed+=1
if self.numjobs==1:
tsk.log_display(tsk.generator.bld)
try:
tsk.process()
finally:
self.out.put(tsk)
else:
self.add_task(tsk)
if st==Task.ASK_LATER:
self.postpone(tsk)
elif st==Task.SKIP_ME:
self.processed+=1
self.skip(tsk)
self.add_more_tasks(tsk)
while self.error and self.count:
self.get_out()
self.ready.put(None)
assert(self.count==0 or self.stop)
|
