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Improve performance by using Python C API to enter/exit context by tarasko · Pull Request #627 · MagicStack/uvloop · GitHub

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Improve performance by using Python C API to enter/exit context #627

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Merged
fantix merged 5 commits into from
Jan 28, 2026
+9 −13
Conversation 1 Commits 5 Checks 17 Files changed 1
Merged

Improve performance by using Python C API to enter/exit context #627

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50497f9
Optimize run_in_context calls
Sep 8, 2024
54ac4f5
Remove unnecessary try-finally blocks
Sep 10, 2024
b5873d5
Don't increase refcount in run_in_context since cython does it for us
Sep 11, 2024
17ae160
Merge branch 'master' into optimize_run_in_context
tarasko Jan 14, 2026
4392ad2
Merge branch 'master' into optimize_run_in_context
fantix Jan 27, 2026
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22 changes: 9 additions & 13 deletions uvloop/loop.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -92,31 +92,27 @@ cdef inline socket_dec_io_ref(sock):


cdef inline run_in_context(context, method):
# This method is internally used to workaround a reference issue that in
# certain circumstances, inlined context.run() will not hold a reference to
# the given method instance, which - if deallocated - will cause segfault.
# See also: edgedb/edgedb#2222
Py_INCREF(method)
Context_Enter(context)
try:
return context.run(method)
return method()
finally:
Py_DECREF(method)
Context_Exit(context)


cdef inline run_in_context1(context, method, arg):
Py_INCREF(method)
Context_Enter(context)
try:
return context.run(method, arg)
return method(arg)
finally:
Py_DECREF(method)
Context_Exit(context)


cdef inline run_in_context2(context, method, arg1, arg2):
Py_INCREF(method)
Context_Enter(context)
try:
return context.run(method, arg1, arg2)
return method(arg1, arg2)
finally:
Py_DECREF(method)
Context_Exit(context)


# Used for deprecation and removal of `loop.create_datagram_endpoint()`'s
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