forked from VimPlug/jedi
65 lines
1.6 KiB
Python
65 lines
1.6 KiB
Python
"""
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Makes it possible to do the compiled analysis in a subprocess. This has two
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goals:
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1. Making it safer - Segfaults and RuntimeErrors as well as stdout/stderr can
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be ignored and dealt with.
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2. Make it possible to handle different Python versions as well as virtualenvs.
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"""
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import sys
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import subprocess
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import pickle
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_PICKLE_PROTOCOL = 2
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class _SubProcess(object):
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def __init__(self, args):
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self._process = subprocess.Popen(
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args,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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#stderr=subprocess.PIPE
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)
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def _send(self, data):
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pickle.dump(data, self._process.stdin, protocol=_PICKLE_PROTOCOL)
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self._process.stdin.flush()
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return pickle.load(self._process.stdout)
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def terminate(self):
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self._process.terminate()
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def kill(self):
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self._process.kill()
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class CompiledSubProcess(object):
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def __init__(self, executable):
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super(CompiledSubProcess, self).__init__(
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(executable, '-m', 'jedi.evaluate.compiled.subprocess')
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)
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def command(self, command):
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return self._send()
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def listen():
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stdout = sys.stdout
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stdin = sys.stdin
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if sys.version_info[0] > 2:
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stdout = stdout.buffer
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stdin = stdin.buffer
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while True:
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try:
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result = pickle.load(stdin)
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except EOFError:
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# It looks like the parent process closed. Don't make a big fuss
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# here and just exit.
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exit(1)
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result += 1
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pickle.dump(result, stdout, protocol=_PICKLE_PROTOCOL)
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stdout.flush()
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