Mention fork()

2017-09-08 22:08:27 +02:00 · 2017-09-08 22:08:27 +02:00 · bc0a86eb8d
parent 2c88e2d062
commit bc0a86eb8d
1 changed files with 4 additions and 0 deletions
--- a/pep-0556.rst
+++ b/pep-0556.rst
@ -337,6 +337,10 @@ is currently guaranteed that finalizers will always be called in the main
 thread.  Breaking this property may induce subtle behaviour changes or bugs,
 for example if finalizers rely on some thread-local values.

+Another problem is when a program uses ``fork()`` for concurrency.
+Calling ``fork()`` from a single-threaded program is safe,
+but it's fragile (to say the least) if the program is multi-threaded.
+
 Explicit collections
 --------------------