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fix possible race in genericDriver

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This commit is contained in:
chrys 2017-05-06 13:04:06 +02:00
parent c13a4d554e
commit 2e15a2a5ba
1 changed files with 11 additions and 9 deletions
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20
src/fenrir/speechDriver/genericDriver.py
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@ -6,10 +6,9 @@
# generic driver
from core import debug
from threading import Thread
from threading import Thread, Lock
from queue import Queue, Empty
import time
from subprocess import Popen, PIPE
from subprocess import Popen
class speakQueue(Queue):
def clear(self):
@ -23,6 +22,7 @@ class driver():
def __init__(self):
self.proc = None
self.speechThread = Thread(target=self.worker)
self.lock = Lock()
self.textQueue = speakQueue()
self.volume = ''
self.rate = ''
@ -74,6 +74,7 @@ class driver():
if not self._isInitialized:
return
self.clear_buffer()
self.lock.acquire(True)
if self.proc:
try:
self.proc.terminate()
@ -81,7 +82,7 @@ class driver():
self.proc.kill()
finally:
self.proc = None
self.lock.release()
def setCallback(self, callback):
print('SpeechDummyDriver: setCallback')
@ -149,12 +150,13 @@ class driver():
popenSpeechCommand = popenSpeechCommand.replace('fenrirText', str(utterance['text']).replace('"','').replace('\n',''))
try:
s = time.time()
self.lock.acquire(True)
self.proc = Popen(popenSpeechCommand, shell=True)
self.proc.wait()
print(popenSpeechCommand)
print('run',time.time() -s)
self.lock.release()
self.proc.wait() # critical for MT? - if we lock it we deadlock it maybe.
except Exception as e:
print('except' + str(e))
self.env['runtime']['debug'].writeDebugOut('speechDriver:worker:'str(e),debug.debugLevel.ERROR)
self.lock.acquire(True)
self.proc = None
self.lock.release()