我总共有 10 个文件(有时可能会更多——但这将是一个固定的数字)。
它们很小——大约 80 字节。
虽然从他们那里阅读一切都很好并且有效 - 它很慢。我猜是因为脚本一一处理它们并等待 IO - 所以我开始阅读 Threading and Queue 但我无法想出一个可行的解决方案......
谁能给我一个打开多个线程文件的例子?
我想把代码放到几个线程中:
try:
with open("/home/pi/sensoren/sensor1", "r") as sensor1, open("/home/pi/sensoren/sensor2", "r") as sensor2, open("/home/pi/sensoren/sensor3", "r") as sensor3, open("/home/pi/sensoren/sensor4", "r") as sensor4, open("/home/pi/sensoren/sensor5", "r") as sensor5, open("/home/pi/sensoren/sensor6", "r") as sensor6, open("/home/pi/sensoren/sensor7", "r") as sensor7, open("/home/pi/sensoren/sensor8", "r") as sensor8, open("/home/pi/sensoren/sensor9", "r") as sensor9, open("/home/pi/sensoren/sensor10", "r") as sensor10:
sensoren = [sensor1, sensor2, sensor3, sensor4, sensor5, sensor6, sensor7, sensor8, sensor9, sensor10]
temp = [ ]
#CRC checker
def checkCrc(line):
if "YES" in line:
return True
return False
#Temperatur Funktion
def getTemp(line):
temp = line.rstrip("\n")
temp = temp.split("t=")
temp = temp[1]
#den -62 error abfangen - sollte klappen
if temp == "-62":
temp = "00"
return str(temp)
#Temperaturen auslesen und zuweisen
for currentSensor in sensoren:
if checkCrc(currentSensor.readline()):
#CRC OK
temp.append(getTemp(currentSensor.readline()))
else:
#CRC ERROR
temp.append("00")
except IOError as e:
print("Fehler bei Dateioperationen: %s" % e.strerror)