We now pass down pointers to closures instead of (callback, arg) pair
elements separately. This allows us to store one word atomically, fixing
a race condition.
All call sites have been updated to the new API. No new allocations are
incurred. grpc_fd_state is deleted to avoid any temptation to ever add
anything there again.
Update LICENSE text to 2015, implement a checker that validates
whether a 2014 or 2015 version of the license is on each {.c,.cc,.h} file.
Fix the ones that are missing it.
Allow binding a different completion queue to each registered method.
This will allow multiplexing for the C++ server between sync & async
methods more easily.
This is a multipoller based on epoll rather than poll.
Note that this implementation is aimed at correctness rather than
performance, although it should immediately have better scalability to
large numbers of FDs, both due to epoll's O(1) sized API and due to not
needing to wake up polling threads to do interest set changes.
One notable difference here is that we directly attach a wakeup fd
rather than using the freelisting kick mechanism that the poll() based
implementations use, because modifying the epoll set to use a different
kick fd each time isn't free.
- Fixes#405.
- This change is not tested as it should (only end to end and no
negative testing). Will do better when we have testing framework
for filters.