32 lines
994 B
Python
32 lines
994 B
Python
import time
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def busy_wait(seconds):
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# Significantly more accurate than `time.sleep`, and mandatory for our use case,
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# but it consumes CPU cycles.
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# TODO(rcadene): find an alternative: from python 11, time.sleep is precise
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end_time = time.perf_counter() + seconds
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while time.perf_counter() < end_time:
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pass
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class RobotDeviceNotConnectedError(Exception):
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"""Exception raised when the robot device is not connected."""
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def __init__(
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self, message="This robot device is not connected. Try calling `robot_device.connect()` first."
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):
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self.message = message
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super().__init__(self.message)
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class RobotDeviceAlreadyConnectedError(Exception):
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"""Exception raised when the robot device is already connected."""
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def __init__(
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self,
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message="This robot device is already connected. Try not calling `robot_device.connect()` twice.",
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):
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self.message = message
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super().__init__(self.message)
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