53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
import os
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import subprocess
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from openpilot.common.basedir import BASEDIR
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class Spinner:
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def __init__(self):
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try:
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self.spinner_proc = subprocess.Popen(["./spinner"],
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stdin=subprocess.PIPE,
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cwd=os.path.join(BASEDIR, "selfdrive", "ui"),
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close_fds=True)
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except OSError:
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self.spinner_proc = None
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def __enter__(self):
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return self
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def update(self, spinner_text: str):
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if self.spinner_proc is not None:
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self.spinner_proc.stdin.write(spinner_text.encode('utf8') + b"\n")
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try:
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self.spinner_proc.stdin.flush()
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except BrokenPipeError:
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pass
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def update_progress(self, cur: float, total: float):
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self.update(str(round(100 * cur / total)))
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def close(self):
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if self.spinner_proc is not None:
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self.spinner_proc.kill()
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try:
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self.spinner_proc.communicate(timeout=2.)
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except subprocess.TimeoutExpired:
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print("WARNING: failed to kill spinner")
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self.spinner_proc = None
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def __del__(self):
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self.close()
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def __exit__(self, exc_type, exc_value, traceback):
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self.close()
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if __name__ == "__main__":
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import time
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with Spinner() as s:
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s.update("Spinner text")
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time.sleep(5.0)
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print("gone")
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time.sleep(5.0)
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