shenleiandClaude Opus 5
5fad769ee8
The embedded 40250 script layer needs its own interpreter on five platforms. 2.7 is end-of-life, so nothing can be fetched from the target SDKs and the source is vendored (official 2.7.18 tarball, trimmed to 25MB; Lib/ stays for step 3's python27.zip). cpython-2.7.18/CMakeLists.txt builds one `mtpython` static library from exactly the 133 objects the reference libpython2.7.a contains, off by default behind -DMTGODOT_EMBED_PYTHON=ON. The source list and the built-in module table (config/config.c, 39 entries) are shared; pyconfig.h is a probe result and is not, so each platform keeps its own under config/<platform>/, regenerated by tools/py_embed/gen_pyconfig.sh and checked against the shared table. Three vendor patches, documented in docs/THIRD-PARTY.md: configure/configure.ac learn arm64 on macOS, and posixmodule.c undefines the process-control calls it hard-defines past pyconfig.h when building for iOS. macOS (ctest python.embed: every builtin imports, codecs and pickle work off the vendored Lib/), Android arm64 and iOS arm64 build. Linux needs a Linux host and Windows needs a MinGW-vs-MSVC decision; both are noted for step 4. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
import signal
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import weakref
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from functools import wraps
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__unittest = True
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class _InterruptHandler(object):
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def __init__(self, default_handler):
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self.called = False
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self.original_handler = default_handler
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if isinstance(default_handler, (int, long)):
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if default_handler == signal.SIG_DFL:
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# Pretend it's signal.default_int_handler instead.
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default_handler = signal.default_int_handler
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elif default_handler == signal.SIG_IGN:
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# Not quite the same thing as SIG_IGN, but the closest we
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# can make it: do nothing.
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def default_handler(unused_signum, unused_frame):
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pass
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else:
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raise TypeError("expected SIGINT signal handler to be "
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"signal.SIG_IGN, signal.SIG_DFL, or a "
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"callable object")
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self.default_handler = default_handler
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def __call__(self, signum, frame):
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installed_handler = signal.getsignal(signal.SIGINT)
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if installed_handler is not self:
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# if we aren't the installed handler, then delegate immediately
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# to the default handler
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self.default_handler(signum, frame)
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if self.called:
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self.default_handler(signum, frame)
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self.called = True
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for result in _results.keys():
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result.stop()
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_results = weakref.WeakKeyDictionary()
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def registerResult(result):
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_results[result] = 1
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def removeResult(result):
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return bool(_results.pop(result, None))
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_interrupt_handler = None
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def installHandler():
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global _interrupt_handler
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if _interrupt_handler is None:
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default_handler = signal.getsignal(signal.SIGINT)
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_interrupt_handler = _InterruptHandler(default_handler)
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signal.signal(signal.SIGINT, _interrupt_handler)
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def removeHandler(method=None):
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if method is not None:
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@wraps(method)
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def inner(*args, **kwargs):
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initial = signal.getsignal(signal.SIGINT)
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removeHandler()
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try:
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return method(*args, **kwargs)
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finally:
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signal.signal(signal.SIGINT, initial)
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return inner
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global _interrupt_handler
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if _interrupt_handler is not None:
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signal.signal(signal.SIGINT, _interrupt_handler.original_handler)
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