run_tests.py will start a server (if it's not running, or if the running
port server mismatches the 'current' one) that serves ports to use for
tests. The server is left running after run_tests.py finishes, so that
in environments such as Mac and Windows where tests run unshielded from
each other, we don't start jumping on already used ports.
Currently, if two threads call grpc_completion_queue_pluck on the same
completion queue for different tags, there is a 50% chance that we
deliver the completion wakeup to the wrong poller - forcing the correct
poller to wait until its polling times out before it can return an event
up to the application.
This change tweaks our polling interfaces so that we can indeed wake a
specific poller.
Nothing has been performance tuned yet. It's definitely sub-optimal in a
number of places. Wakeup file-descriptors should be recycled. We should
have a path that avoids calling poll() followed by epoll(). We can
probably live without it right at the second though.
This code will fail on Windows at least (I'll do that port when I'm in the office and have a Windows
machine).
Move eventmanager and platform dependent endpoint functionality into a single
library called 'iomgr'.
This is primarily to prepare for a Windows port - where posix socket semantics
lead to poor quality code.
Mostly this is a code movement CL, with some small changes to help prepare the
way for porting:
- em style fd objects can only be held internally in iomgr, and own their memory
- added grpc_iomgr_create_endpoint_pair() to accomodate the common pattern of
creating a tcp endpoint from the output of socketpair - this will help keep
our tests portable
- separated em alarm interface into a separate file, as this part of event
manager is needed higher up the stack
- made the eventmanager bits a true singleton, simplifying API's across the
stack as there's no longer a reason to carry a pointer there.
Initial design document is here:
https://docs.google.com/document/d/1VmafcHvvrP5kwtQkz84R5yXF7u7fW-9Pn0bkSUQHDt8/edit?disco=AAAAARNByxg
Change on 2014/12/09 by ctiller <ctiller@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=81716456
Craig Tiller