def start_tx(cls, device):
if cls.__FR is None or cls.__FW is None:
raise RuntimeError("I2C.start_tx: bus is not open.")
Lock.acquire(cls.__name__, 1.0)
fcntl.ioctl(cls.__FR, I2C.__I2C_SLAVE, device)
fcntl.ioctl(cls.__FW, I2C.__I2C_SLAVE, device)
def open(self, lock_timeout, comms_timeout):
# lock...
Lock.acquire(self.__lock_name, lock_timeout)
# port...
self._ser = serial.Serial(port=self.device_identifier, baudrate=self._baud_rate, timeout=comms_timeout)
time.sleep(0.5) # as GE910 - 0.3
def start_tx(self, device):
if self.__fr is None or self.__fw is None:
self.open_for_bus(self.__bus)
Lock.acquire(self.__class__.__name__, self.__LOCK_TIMEOUT)
fcntl.ioctl(self.__fr, self.__I2C_SLAVE, device)
fcntl.ioctl(self.__fw, self.__I2C_SLAVE, device)
def close(self):
try:
# port...
if self._ser:
self._ser.close()
self._ser = None
finally:
# lock...
Lock.release(self.__lock_name)
def open(self, lock_timeout, comms_timeout):
# lock...
Lock.acquire(self.__lock_name, lock_timeout)
# serial...
self._ser = serial.Serial(port=self.port,
baudrate=self._baud_rate,
timeout=comms_timeout,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS)
def open(self, lock_timeout, comms_timeout):
# lock...
Lock.acquire(self.__lock_name, lock_timeout)
# port...
self._ser = serial.Serial(port=self._device_identifier,
baudrate=self._baud_rate,
timeout=comms_timeout,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS)
time.sleep(0.5) # as GE910 - 0.3
def __get_output(self, mask):
if self.__device is None:
return None
Lock.acquire(IO.__lock_name(IO.__LOCK), IO.__LOCK_TIMEOUT)
try:
byte = self.__device.state.byte
return bool(byte & mask)
finally:
Lock.release(IO.__lock_name(IO.__LOCK))
def __set_output(self, mask, level):
if self.__device is None:
return
Lock.acquire(IO.__lock_name(IO.__LOCK), IO.__LOCK_TIMEOUT)
try:
byte = self.__device.state.byte
if level:
byte |= mask
else:
byte &= ~mask
self.__device.write(byte)
self.__device.state = byte
finally:
Lock.release(IO.__lock_name(IO.__LOCK))
def obtain_lock(self):
Lock.acquire(self.__lock_name, ADS1115.__LOCK_TIMEOUT)
def start_tx(self):
Lock.acquire(self.__lock_name(Modem.__LOCK_PWR), Modem.__LOCK_TIMEOUT)
def obtain_lock(cls):
Lock.acquire(cls.__lock_name(), DS1338.__LOCK_TIMEOUT)
""" Created on 16 Apr 2017 @author: Bruno Beloff ([email protected]) """ from scs_host.lock.lock import Lock # -------------------------------------------------------------------------------------------------------------------- Lock.init()
def obtain_lock(cls):
Lock.acquire(cls.__name__, SPINDIRx1.__LOCK_TIMEOUT)
def obtain_lock(cls):
Lock.acquire(cls.__name__, OPCN2.__LOCK_TIMEOUT)
def end_tx(self):
Lock.release(self.__class__.__name__)
#!/usr/bin/env python3 """ Created on 17 Mar 2017 @author: Bruno Beloff ([email protected]) """ import os from scs_host.lock.lock import Lock # -------------------------------------------------------------------------------------------------------------------- resource = "test" print("resource: %s" % resource) print("pid: %s" % os.getpid()) # -------------------------------------------------------------------------------------------------------------------- print("attempt 1...") Lock.acquire(resource, 2) print("OK") print("-") print("attempt 2...") Lock.acquire(resource, 2) print("OK") print("-")
def obtain_lock(self):
Lock.acquire(self.lock_name, self.lock_timeout())
def obtain_lock(self):
Lock.acquire(self.__class__.__name__, MCP342X.__LOCK_TIMEOUT)
def release_lock(self):
Lock.release(self.lock_name)
def acquire_lock(self):
Lock.acquire(self.__lock_name, SPI.__LOCK_TIMEOUT)
def release_lock(cls):
Lock.release(cls.__name__)
def end_tx(cls):
Lock.release(cls.__name__)
def release_lock(self):
Lock.release(self.__class__.__name__)
def start_tx(self):
Lock.acquire(self.__lock_name(GE910.__LOCK_TX), GE910.__LOCK_TIMEOUT)
def release_lock(cls):
Lock.release(cls.__lock_name())
def end_tx(self):
Lock.release(self.__lock_name(GE910.__LOCK_TX))
def end_tx(self):
Lock.release(self.__lock_name(Modem.__LOCK_PWR))
"""
import os
import time
from scs_host.lock.lock import Lock
# --------------------------------------------------------------------------------------------------------------------
print("pid:%d" % os.getpid())
# --------------------------------------------------------------------------------------------------------------------
name = "TestLock"
exists = Lock.exists(name)
print("exists: %s" % exists)
pid = Lock.pid(name)
print("pid: %s" % str(pid))
print("-")
# --------------------------------------------------------------------------------------------------------------------
Lock.acquire(name, 4.0)
print("locked...")
try:
exists = Lock.exists(name)