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Each piece of queued work now has an associated priority value; each
priority goes on a separate queue.
With probability (N-1)/N, the workers will take work from the highest
priority nonempty queue. Otherwise, they'll look for work in a
queue of lower priority. This behavior is meant to prevent
starvation for lower-priority tasks.
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Only some very ancient distributions don't ship with Libevent 2 anymore,
even the oldest supported Ubuntu LTS version has it. This allows us to
get rid of a lot of compat code.
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This is a fairly easy way for us to get our test coverage up on
compat_threads.c and workqueue.c -- I already implemented these
tests, so we might as well enable them.
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These functions must really never fail; so have crypto_rand() assert
that it's working okay, and have crypto_seed_rng() demand that
callers check its return value. Also have crypto_seed_rng() check
RAND_status() before returning.
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This includes a small refactoring to use a new enum (workqueue_reply_t)
for the return values instead of just ints.
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We don't want to accept any work after one of our worker functions has
returned WQ_RPL_SHUTDOWN. This testcase currently fails, because we do
not actually stop any of the worker threads.
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The workqueue test help message has two issues. First, the message uses 4 space
indentation when 2 space indentation seems more common. Second, the help
message misses some options.
This commit fixes both issues.
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Instead of having a 30-second timer be the only way to end the test,
add a 2 second shutdown timer when the test is actually about to be over.
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Conflicts:
src/test/testing_common.c
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It needed an argument before because it wasn't safe to call
RAND_poll() on openssl 0.9.8c if you had already opened more fds
than would fit in fd_set.
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This makes coverity happy, since it doesn't like us looping against
a value which might be INT_MAX.
This is CID 1268069
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Signed-off-by: David Goulet <dgoulet@ev0ke.net>
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Previously I used one queue per worker; now I use one queue for
everyone. The "broadcast" code is gone, replaced with an idempotent
'update' operation.
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