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Do not send Libevent log messages to a controller.

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Doing so could make Libevent call Libevent from inside a Libevent
logging call, which is a recipe for reentrant confusion and
hard-to-debug crashes.  This would especially hurt if Libevent
debug-level logging is enabled AND the user has a controller
watching for low-severity log messages.

Fix bug 2190; fix on 0.1.0.2-rc.
This commit is contained in:
Nick Mathewson
2010-11-19 22:22:43 -05:00
parent a33b338c5b
commit 6199ac5fbe
4 changed files with 19 additions and 5 deletions
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changes/bug2190
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o Minor bugfixes
- Prevent calls from Libevent from inside Libevent log handlers.
This had potential to cause a nasty set of crashes, especially if
running Libevent with debug logging enabled, and running Tor
with a controller watching for low-severity log messages.
Bugfix on 0.1.0.2-rc. Fixes bug 2190.