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authorMiro Hron?ok <miro@hroncok.cz>2018-06-08 18:49:42 +0200
committerMiro Hron?ok <miro@hroncok.cz>2018-06-08 18:49:42 +0200
commitbb9bdf7e5b5cb0d3458242c5b8ba6134efb282a4 (patch)
treee3f03e7ce1f234e0c91075da6d0b56040f693162 /paste/util/killthread.py
downloadpaste-git-bb9bdf7e5b5cb0d3458242c5b8ba6134efb282a4.tar.gz
Don't raise StopIteration from generator, return instead
See https://www.python.org/dev/peps/pep-0479/
Diffstat (limited to 'paste/util/killthread.py')
-rw-r--r--paste/util/killthread.py30
1 files changed, 30 insertions, 0 deletions
diff --git a/paste/util/killthread.py b/paste/util/killthread.py
new file mode 100644
index 0000000..4df4f42
--- /dev/null
+++ b/paste/util/killthread.py
@@ -0,0 +1,30 @@
+"""
+Kill a thread, from http://sebulba.wikispaces.com/recipe+thread2
+"""
+import six
+try:
+ import ctypes
+except ImportError:
+ raise ImportError(
+ "You cannot use paste.util.killthread without ctypes installed")
+if not hasattr(ctypes, 'pythonapi'):
+ raise ImportError(
+ "You cannot use paste.util.killthread without ctypes.pythonapi")
+
+def async_raise(tid, exctype):
+ """raises the exception, performs cleanup if needed.
+
+ tid is the value given by thread.get_ident() (an integer).
+ Raise SystemExit to kill a thread."""
+ if not isinstance(exctype, (six.class_types, type)):
+ raise TypeError("Only types can be raised (not instances)")
+ if not isinstance(tid, int):
+ raise TypeError("tid must be an integer")
+ res = ctypes.pythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid), ctypes.py_object(exctype))
+ if res == 0:
+ raise ValueError("invalid thread id")
+ elif res != 1:
+ # """if it returns a number greater than one, you're in trouble,
+ # and you should call it again with exc=NULL to revert the effect"""
+ ctypes.pythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid), 0)
+ raise SystemError("PyThreadState_SetAsyncExc failed")