def main(self):
# If we're currently shutting down, just die. If not, loop forever,
# to recover from possible errors caught by the huge try statement inside this loop.
# Count how often the except for that try was hit recently. This will be reset if
# there was no exception for at least 5 minutes since the last one.
tries = 0
while not self.shutdown:
try:
# Record our starting timestamp, in order to back off if we repeatedly die
starttime = time.time()
# Exception container: If an exception occurs in the listener thread, the listener thread
# will store it here and terminate, and the main thread will rethrow it and then restart.
self.error = None
self.hasheswithoutshare = 0
# Initialize megahashes per second to zero, will be measured later.
self.stats.mhps = 0
# Job that the device is currently working on, or that is currently being uploaded.
# This variable is used by BaseWorker to figure out the current work source for statistics.
self.job = None
# Job that was previously being procesed. Has been destroyed, but there might be some late nonces.
self.oldjob = None
# Open the serial port
self.handle = serial.Serial(self.port, self.baudrate, serial.EIGHTBITS, serial.PARITY_NONE, serial.STOPBITS_ONE, 1, False, False, 5, False, None)
# We keep control of the wakeup lock at all times unless we're sleeping
self.wakeup.acquire()
# Set validation success flag to false
self.checksuccess = False
# Start device response listener thread
self.listenerthread = Thread(None, self._listener, self.settings.name + "_listener")
self.listenerthread.daemon = True
self.listenerthread.start()
# Send validation job to device
job = ValidationJob(self.core, unhexlify(b"00000001c3bf95208a646ee98a58cf97c3a0c4b7bf5de4c89ca04495000005200000000024d1fff8d5d73ae11140e4e48032cd88ee01d48c67147f9a09cd41fdec2e25824f5c038d1a0b350c5eb01f04"))
self._sendjob(job)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Wait for the validation job to complete. The wakeup flag will be set by the listener
# thread when the validation job completes. 60 seconds should be sufficient for devices
# down to about 2.6MH/s, for slower devices this timeout will need to be increased.
self.wakeup.wait(60)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Honor shutdown flag
if self.shutdown: break
# We woke up, but the validation job hasn't succeeded in the mean time.
# This usually means that the wakeup timeout has expired.
if not self.checksuccess: raise Exception("Timeout waiting for validation job to finish")
# self.stats.mhps has now been populated by the listener thread
self.core.log(self, "Running at %f MH/s\n" % self.stats.mhps, 300, "B")
# Calculate the time that the device will need to process 2**32 nonces.
# This is limited at 60 seconds in order to have some regular communication,
# even with very slow devices (and e.g. detect if the device was unplugged).
interval = min(60, 2**32 / 1000000. / self.stats.mhps)
# Add some safety margin and take user's interval setting (if present) into account.
self.jobinterval = min(self.settings.jobinterval, max(0.5, interval * 0.8 - 1))
self.core.log(self, "Job interval: %f seconds\n" % self.jobinterval, 400, "B")
# Tell the MPBM core that our hash rate has changed, so that it can adjust its work buffer.
self.jobspersecond = 1. / self.jobinterval
self.core.notify_speed_changed(self)
# Main loop, continues until something goes wrong or we're shutting down.
while not self.shutdown:
# Fetch a job, add 2 seconds safety margin to the requested minimum expiration time.
# Blocks until one is available. Because of this we need to release the
# wakeup lock temporarily in order to avoid possible deadlocks.
self.wakeup.release()
job = self.core.get_job(self, self.jobinterval + 2)
self.wakeup.acquire()
# If a new block was found while we were fetching that job, just discard it and get a new one.
if job.canceled:
job.destroy()
continue
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Upload the job to the device
self._sendjob(job)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# If the job was already caught by a long poll while we were uploading it,
# jump back to the beginning of the main loop in order to immediately fetch new work.
# Don't check for the canceled flag before the job was accepted by the device,
# otherwise we might get out of sync.
if self.job.canceled: continue
# Wait while the device is processing the job. If nonces are sent by the device, they
# will be processed by the listener thread. If the job gets canceled, we will be woken up.
self.wakeup.wait(self.jobinterval)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# If something went wrong...
except Exception as e:
# ...complain about it!
self.core.log(self, "%s\n" % traceback.format_exc(), 100, "rB")
# Make sure that the listener thread realizes that something went wrong
self.error = e
finally:
# We're not doing productive work any more, update stats and destroy current job
self._jobend()
self.stats.mhps = 0
# Release the wake lock to allow the listener thread to move. Ignore it if that goes wrong.
try: self.wakeup.release()
except: pass
# Close the serial port handle, otherwise we can't reopen it after restarting.
# This should hopefully also make reads on that port from the listener thread fail,
# so that the listener thread will realize that it's supposed to shut down.
try: self.handle.close()
except: pass
# Wait for the listener thread to terminate.
# If it doens't within 5 seconds, continue anyway. We can't do much about that.
try: self.listenerthread.join(5)
except: pass
# Set MH/s to zero again, the listener thread might have overwritten that.
self.stats.mhps = 0
# If we aren't shutting down, figure out if there have been many errors recently,
# and if yes, wait a bit longer until restarting the worker.
if not self.shutdown:
tries += 1
if time.time() - starttime >= 300: tries = 0
with self.wakeup:
if tries > 5: self.wakeup.wait(30)
else: self.wakeup.wait(1)
def main(self):
# If we're currently shutting down, just die. If not, loop forever,
# to recover from possible errors caught by the huge try statement inside this loop.
# Count how often the except for that try was hit recently. This will be reset if
# there was no exception for at least 5 minutes since the last one.
tries = 0
while not self.shutdown:
try:
# Record our starting timestamp, in order to back off if we repeatedly die
starttime = time.time()
# Initialize megahashes per second to zero, will be measured later.
self.stats.mhps = 0
# Job that the device is currently working on, or that is currently being uploaded.
# This variable is used by BaseWorker to figure out the current work source for statistics.
self.job = None
# Job that was previously being procesed. Has been destroyed, but there might be some late nonces.
self.oldjob = None
# We keep control of the wakeup lock at all times unless we're sleeping
self.wakeup.acquire()
# Eat up leftover wakeups
self.wakeup.wait(0)
# Honor shutdown flag (in case it was a real wakeup)
if self.shutdown: break
# Set validation success flag to false
self.checksuccess = False
# Set validation job second iteration flag to false
self.seconditeration = False
# Initialize hash rate tracking data
self.lasttime = None
self.lastnonce = None
# Initialize malfunction tracking data
self.recentshares = 0
self.recentinvalid = 0
# Configure core clock, if the bitstream supports that
if self.firmware_rev > 0: self._set_speed(self.parent.settings.initialspeed)
# Clear FPGA's nonce queue
self.parent.clear_queue(self.fpga)
# Send validation job to device
job = ValidationJob(self.core, unhexlify(b"00000001c3bf95208a646ee98a58cf97c3a0c4b7bf5de4c89ca04495000005200000000024d1fff8d5d73ae11140e4e48032cd88ee01d48c67147f9a09cd41fdec2e25824f5c038d1a0b350c5eb01f04"))
self._sendjob(job)
# Wait for the validation job to complete. The wakeup flag will be set by the listener
# thread when the validation job completes. 180 seconds should be sufficient for devices
# down to about 50MH/s, for slower devices this timeout will need to be increased.
if self.stats.speed: self.wakeup.wait((2**32 / 1000000. / self.stats.speed) * 1.1)
else: self.wakeup.wait(180)
# Honor shutdown flag
if self.shutdown: break
# We woke up, but the validation job hasn't succeeded in the mean time.
# This usually means that the wakeup timeout has expired.
if not self.checksuccess: raise Exception("Timeout waiting for validation job to finish")
# self.stats.mhps has now been populated by the listener thread
self.core.log(self, "Running at %f MH/s\n" % self.stats.mhps, 300, "B")
self._update_job_interval()
# Main loop, continues until something goes wrong or we're shutting down.
while not self.shutdown:
# Fetch a job, add 2 seconds safety margin to the requested minimum expiration time.
# Blocks until one is available. Because of this we need to release the
# wakeup lock temporarily in order to avoid possible deadlocks.
self.wakeup.release()
job = self.core.get_job(self, self.jobinterval + 2)
self.wakeup.acquire()
# If a new block was found while we were fetching that job, just discard it and get a new one.
if job.canceled:
job.destroy()
continue
# Upload the job to the device
self._sendjob(job)
# Go through the safety checks and reduce the clock if necessary
self.safetycheck()
# If the job was already caught by a long poll while we were uploading it,
# jump back to the beginning of the main loop in order to immediately fetch new work.
# Don't check for the canceled flag before the job was accepted by the device,
# otherwise we might get out of sync.
if self.job.canceled: continue
# Wait while the device is processing the job. If nonces are sent by the device, they
# will be processed by the listener thread. If the job gets canceled, we will be woken up.
self.wakeup.wait(self.jobinterval)
# If something went wrong...
except Exception as e:
# ...complain about it!
self.core.log(self, "%s\n" % traceback.format_exc(), 100, "rB")
finally:
# We're not doing productive work any more, update stats and destroy current job
self._jobend()
self.stats.mhps = 0
try: self.wakeup.release()
except: pass
# If we aren't shutting down, figure out if there have been many errors recently,
# and if yes, restart the parent worker as well.
if not self.shutdown:
tries += 1
if time.time() - starttime >= 300: tries = 0
with self.wakeup:
if tries > 5:
self.parent.async_restart()
return
else: self.wakeup.wait(1)
def main(self):
# If we're currently shutting down, just die. If not, loop forever,
# to recover from possible errors caught by the huge try statement inside this loop.
# Count how often the except for that try was hit recently. This will be reset if
# there was no exception for at least 5 minutes since the last one.
tries = 0
while not self.shutdown:
try:
# Record our starting timestamp, in order to back off if we repeatedly die
starttime = time.time()
self.error = None
# Initialize megahashes per second to zero, will be measured later.
self.stats.mhps = 0
# Job that the device is currently working on, or that is currently being uploaded.
# This variable is used by BaseWorker to figure out the current work source for statistics.
self.job = None
# Job that was previously being procesed. Has been destroyed, but there might be some late nonces.
self.oldjob = None
# We keep control of the wakeup lock at all times unless we're sleeping
self.wakeup.acquire()
# Eat up leftover wakeups
self.wakeup.wait(0)
# Honor shutdown flag (in case it was a real wakeup)
if self.shutdown: break
# Set validation success flag to false
self.checksuccess = False
# Initialize hash rate tracking data
self.lasttime = None
self.lastnonce = None
# Initialize malfunction tracking data
self.recentshares = 0
self.recentinvalid = 0
# Configure core clock, if the bitstream supports that
self._set_speed(self.parent.settings.initialspeed)
# Send validation job to device
job = ValidationJob(
self.core,
unhexlify(
b"00000001c3bf95208a646ee98a58cf97c3a0c4b7bf5de4c89ca04495000005200000000024d1fff8d5d73ae11140e4e48032cd88ee01d48c67147f9a09cd41fdec2e25824f5c038d1a0b350c5eb01f04"
))
self._sendjob(job)
# Wait for the validation job to complete. The wakeup flag will be
# set by the listener thread when the validation job completes.
self.wakeup.wait((100. / self.stats.mhps) + 1)
# Honor shutdown flag
if self.shutdown: break
# We woke up, but the validation job hasn't succeeded in the mean time.
# This usually means that the wakeup timeout has expired.
if not self.checksuccess:
raise Exception(
"Timeout waiting for validation job to finish")
# Main loop, continues until something goes wrong or we're shutting down.
while not self.shutdown:
# Fetch a job, add 2 seconds safety margin to the requested minimum expiration time.
# Blocks until one is available. Because of this we need to release the
# wakeup lock temporarily in order to avoid possible deadlocks.
self.wakeup.release()
job = self.core.get_job(self, self.jobinterval + 2)
self.wakeup.acquire()
if self.error: raise self.error
# If a new block was found while we were fetching that job, just discard it and get a new one.
if job.canceled:
job.destroy()
continue
# Upload the job to the device
self._sendjob(job)
if self.error: raise self.error
# Go through the safety checks and reduce the clock if necessary
self.safetycheck()
# If the job was already caught by a long poll while we were uploading it,
# jump back to the beginning of the main loop in order to immediately fetch new work.
# Don't check for the canceled flag before the job was accepted by the device,
# otherwise we might get out of sync.
if self.job.canceled: continue
# Wait while the device is processing the job. If nonces are sent by the device, they
# will be processed by the listener thread. If the job gets canceled, we will be woken up.
self.wakeup.wait(self.jobinterval)
if self.error: raise self.error
# If something went wrong...
except Exception as e:
# ...complain about it!
self.core.log(self, "%s\n" % traceback.format_exc(), 100, "rB")
finally:
# We're not doing productive work any more, update stats and destroy current job
self._jobend()
self.stats.mhps = 0
try:
self.wakeup.release()
except:
pass
# If we aren't shutting down, figure out if there have been many errors recently,
# and if yes, restart the parent worker as well.
if not self.shutdown:
tries += 1
if time.time() - starttime >= 300: tries = 0
with self.wakeup:
if tries > 5:
self.parent.async_restart()
return
else:
self.wakeup.wait(1)
def main(self):
# If we're currently shutting down, just die. If not, loop forever,
# to recover from possible errors caught by the huge try statement inside this loop.
# Count how often the except for that try was hit recently. This will be reset if
# there was no exception for at least 5 minutes since the last one.
tries = 0
while not self.shutdown:
try:
# Record our starting timestamp, in order to back off if we repeatedly die
starttime = time.time()
# Exception container: If an exception occurs in the listener thread, the listener thread
# will store it here and terminate, and the main thread will rethrow it and then restart.
self.error = None
# Initialize megahashes per second to zero, will be measured later.
self.stats.mhps = 0
# Job that the device is currently working on (found nonces are coming from this one).
# This variable is used by BaseWorker to figure out the current work source for statistics.
self.job = None
# Job that is currently being uploaded to the device but not yet being processed.
self.nextjob = None
# Open the serial port
self.handle = serial.Serial(self.port, self.baudrate,
serial.EIGHTBITS,
serial.PARITY_NONE,
serial.STOPBITS_ONE, 1, False,
False, 5, False, None)
# Send enough zero bytes to make sure that the device is not expecting data any more.
# Command zero is a ping request, which is answered by a zero byte from the device.
# This means that superfluous zero bytes (but at least one) will just bounce back to us.
self.handle.write(struct.pack("45B", *([0] * 45)))
# Read the device's response.
# There should be at least one byte, and the last byte must be zero.
# If not, something is wrong with the device or communication channel.
data = self.handle.read(100)
if len(data) == 0:
raise Exception(
"Failed to sync with mining device: Device does not respond"
)
if data[-1:] != b"\0":
raise Exception(
"Failed to sync with mining device: Device sends garbage"
)
# We keep control of the wakeup lock at all times unless we're sleeping
self.wakeup.acquire()
# Set validation success flag to false
self.checksuccess = False
# Start device response listener thread
self.listenerthread = Thread(None, self._listener,
self.settings.name + "_listener")
self.listenerthread.daemon = True
self.listenerthread.start()
# Send validation job to device
job = ValidationJob(
self.core,
unhexlify(
b"00000001c3bf95208a646ee98a58cf97c3a0c4b7bf5de4c89ca04495000005200000000024d1fff8d5d73ae11140e4e48032cd88ee01d48c67147f9a09cd41fdec2e25824f5c038d1a0b350c5eb01f04"
))
self._sendjob(job)
# Wait for validation job to be accepted by the device
self.wakeup.wait(1)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Honor shutdown flag
if self.shutdown: break
# If the job that was enqueued above has not been moved from nextjob to job by the
# listener thread yet, something went wrong. Throw an exception to make everything restart.
if self.nextjob != None:
raise Exception("Timeout waiting for job ACK")
# Wait for the validation job to complete. The wakeup flag will be set by the listener
# thread when the validation job completes. 60 seconds should be sufficient for devices
# down to about 1.3MH/s, for slower devices this timeout will need to be increased.
self.wakeup.wait(60)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Honor shutdown flag
if self.shutdown: break
# We woke up, but the validation job hasn't succeeded in the mean time.
# This usually means that the wakeup timeout has expired.
if not self.checksuccess:
raise Exception(
"Timeout waiting for validation job to finish")
# self.stats.mhps has now been populated by the listener thread
self.core.log(
self.settings.name +
": Running at %f MH/s\n" % self.stats.mhps, 300, "B")
# Calculate the time that the device will need to process 2**32 nonces.
# This is limited at 60 seconds in order to have some regular communication,
# even with very slow devices (and e.g. detect if the device was unplugged).
interval = min(60, 2**32 / 1000000. / self.stats.mhps)
# Add some safety margin and take user's interval setting (if present) into account.
self.jobinterval = min(self.settings.jobinterval,
max(0.5, interval * 0.8 - 1))
self.core.log(
self.settings.name +
": Job interval: %f seconds\n" % self.jobinterval, 400,
"B")
# Tell the MPBM core that our hash rate has changed, so that it can adjust its work buffer.
self.jobspersecond = 1. / self.jobinterval
self.core.notify_speed_changed(self)
# Main loop, continues until something goes wrong or we're shutting down.
while not self.shutdown:
# Fetch a job, add 2 seconds safety margin to the requested minimum expiration time.
# Blocks until one is available. Because of this we need to release the
# wakeup lock temporarily in order to avoid possible deadlocks.
self.wakeup.release()
job = self.core.get_job(self, self.jobinterval + 2)
self.wakeup.acquire()
# If a new block was found while we were fetching that job, just discard it and get a new one.
if job.canceled:
job.destroy()
continue
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Upload the job to the device
self._sendjob(job)
# Wait for up to one second for the device to accept it
self.wakeup.wait(1)
# Honor shutdown flag
if self.shutdown: break
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# If the job that was send above has not been moved from nextjob to job by the listener
# thread yet, something went wrong. Throw an exception to make everything restart.
if self.nextjob != None:
raise Exception("Timeout waiting for job ACK")
# If the job was already caught by a long poll while we were uploading it,
# jump back to the beginning of the main loop in order to immediately fetch new work.
# Don't check for the canceled flag before the job was accepted by the device,
# otherwise we might get out of sync.
if self.job.canceled: continue
# Wait while the device is processing the job. If nonces are sent by the device, they
# will be processed by the listener thread. If the job gets canceled, we will be woken up.
self.wakeup.wait(self.jobinterval)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# If something went wrong...
except Exception as e:
# ...complain about it!
self.core.log(
self.settings.name + ": %s\n" % traceback.format_exc(),
100, "rB")
# Make sure that the listener thread realizes that something went wrong
self.error = e
finally:
# We're not doing productive work any more, update stats and destroy current job
self._jobend()
self.stats.mhps = 0
# Release the wake lock to allow the listener thread to move. Ignore it if that goes wrong.
try:
self.wakeup.release()
except:
pass
# Close the serial port handle, otherwise we can't reopen it after restarting.
# This should hopefully also make reads on that port from the listener thread fail,
# so that the listener thread will realize that it's supposed to shut down.
try:
self.handle.close()
except:
pass
# Wait for the listener thread to terminate.
# If it doens't within 5 seconds, continue anyway. We can't do much about that.
try:
self.listenerthread.join(5)
except:
pass
# Set MH/s to zero again, the listener thread might have overwritten that.
self.stats.mhps = 0
# If we aren't shutting down, figure out if there have been many errors recently,
# and if yes, wait a bit longer until restarting the worker.
if not self.shutdown:
tries += 1
if time.time() - starttime >= 300: tries = 0
with self.wakeup:
if tries > 5: self.wakeup.wait(30)
else: self.wakeup.wait(1)
def main(self):
# If we're currently shutting down, just die. If not, loop forever,
# to recover from possible errors caught by the huge try statement inside this loop.
# Count how often the except for that try was hit recently. This will be reset if
# there was no exception for at least 5 minutes since the last one.
tries = 0
while not self.shutdown:
try:
# Record our starting timestamp, in order to back off if we repeatedly die
starttime = time.time()
# Exception container: If an exception occurs in the listener thread, the listener thread
# will store it here and terminate, and the main thread will rethrow it and then restart.
self.error = None
self.hasheswithoutshare = 0
# Initialize megahashes per second to zero, will be measured later.
self.stats.mhps = 0
self.offset = 0
# Initialize clocking tracking data
self.speed = 0
self.recentshares = 0
self.recentinvalid = 0
# Job that the device is currently working on, or that is currently being uploaded.
# This variable is used by BaseWorker to figure out the current work source for statistics.
self.job = None
# Job that was previously being procesed. Has been destroyed, but there might be some late nonces.
self.oldjob = None
# Open the serial port
import serial
self.handle = serial.Serial(self.port, self.baudrate,
serial.EIGHTBITS,
serial.PARITY_NONE,
serial.STOPBITS_ONE, 1, False,
False, 5, False, None)
# We keep control of the wakeup lock at all times unless we're sleeping
self.wakeup.acquire()
# Set validation success flag to false
self.checksuccess = False
# Start device response listener thread
self.listenerthread = Thread(None, self._listener,
self.settings.name + "_listener")
self.listenerthread.daemon = True
self.listenerthread.start()
# Configure core clock
self.initialramp = True
self._set_speed(self.settings.initialspeed // 2.5)
# Send validation job to device
job = ValidationJob(
self.core,
unhexlify(
b"00000001c3bf95208a646ee98a58cf97c3a0c4b7bf5de4c89ca04495000005200000000024d1fff8d5d73ae11140e4e48032cd88ee01d48c67147f9a09cd41fdec2e25824f5c038d1a0b350c5eb01f04"
))
self._sendjob(job)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Wait for the validation job to complete. The wakeup flag will be set by the listener
# thread when the validation job completes. 60 seconds should be sufficient for devices
# down to about 2.6MH/s, for slower devices this timeout will need to be increased.
self.wakeup.wait(60)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Honor shutdown flag
if self.shutdown: break
# We woke up, but the validation job hasn't succeeded in the mean time.
# This usually means that the wakeup timeout has expired.
if not self.checksuccess:
raise Exception(
"Timeout waiting for validation job to finish")
# Main loop, continues until something goes wrong or we're shutting down.
while not self.shutdown:
# Fetch a job, add 2 seconds safety margin to the requested minimum expiration time.
# Blocks until one is available. Because of this we need to release the
# wakeup lock temporarily in order to avoid possible deadlocks.
self.wakeup.release()
job = self.core.get_job(self, self.jobinterval + 2)
self.wakeup.acquire()
# If the job could be interpreted as a command, ignore it.
if job.data[68:72] == unhexlify(b"ffffffff"):
job.destroy()
continue
# Go through the safety checks and adjust the clock if necessary
self.safetycheck()
# If a new block was found while we were fetching this job, just discard it and get a new one.
if job.canceled:
job.destroy()
continue
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# Upload the job to the device
self._sendjob(job)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# If the job was already caught by a long poll while we were uploading it,
# jump back to the beginning of the main loop in order to immediately fetch new work.
# Don't check for the canceled flag before the job was accepted by the device,
# otherwise we might get out of sync.
if self.job.canceled: continue
# Wait while the device is processing the job. If nonces are sent by the device, they
# will be processed by the listener thread. If the job gets canceled, we will be woken up.
self.wakeup.wait(self.jobinterval)
# If an exception occurred in the listener thread, rethrow it
if self.error != None: raise self.error
# If something went wrong...
except Exception as e:
# ...complain about it!
self.core.log(self, "%s\n" % traceback.format_exc(), 100, "rB")
# Make sure that the listener thread realizes that something went wrong
self.error = e
finally:
# We're not doing productive work any more, update stats and destroy current job
self._jobend()
self.stats.mhps = 0
# Release the wake lock to allow the listener thread to move. Ignore it if that goes wrong.
try:
self.wakeup.release()
except:
pass
# Close the serial port handle, otherwise we can't reopen it after restarting.
# This should hopefully also make reads on that port from the listener thread fail,
# so that the listener thread will realize that it's supposed to shut down.
try:
self.handle.close()
except:
pass
# Wait for the listener thread to terminate.
# If it doens't within 5 seconds, continue anyway. We can't do much about that.
try:
self.listenerthread.join(5)
except:
pass
# Set MH/s to zero again, the listener thread might have overwritten that.
self.stats.mhps = 0
# If we aren't shutting down, figure out if there have been many errors recently,
# and if yes, wait a bit longer until restarting the worker.
if not self.shutdown:
tries += 1
if time.time() - starttime >= 300: tries = 0
with self.wakeup:
if tries > 5: self.wakeup.wait(30)
else: self.wakeup.wait(1)