class TasksPool(QObject):
startNextTaskSignal = Signal()
allTasksCompleteSignal = Signal()
def __init__(self):
super(TasksPool, self).__init__()
self.tasks_pool = []
self.process = QProcess()
self.startNextTaskSignal.connect(self.execute_task)
self.allTasksCompleteSignal.connect(self.tasks_complete)
self.source = ''
def add_task(self, command):
self.tasks_pool.append(command)
self.startNextTaskSignal.emit()
def execute_task(self):
print('Start next?')
if self.process.isOpen():
self.process.waitForFinished()
if not self.tasks_pool:
self.allTasksCompleteSignal.emit()
return
self.process = QProcess()
self.process.finished.connect(
lambda *x: QTimer.singleShot(1000, self.startNextTaskSignal.emit))
self.process.setProcessChannelMode(QProcess.MergedChannels)
self.process.readyRead.connect(self.process_output)
next_task = self.tasks_pool.pop(0)
print('NEXT TASK', next_task)
self.process.start(next_task)
def process_output(self):
output = self.process.readAll()
output = str(output).strip()
if output:
print(output)
def tasks_complete(self):
print('ALL TASKS COMPLETE')
