compression. Refactored the code to remove duplication between tls/non-tls
versions of the server, which appear to have been cut & paste copies of
one another that had diverged slightly. This makes some of the fixes to
the non-tls server available in the tls server.
cryptonomex/graphene#619
when creating the websocket servers to enable deflate compression on
websocket frames. This is relevant to cryptonomex/graphene#540 because
the spammed data is higly compressible. In my tests, it reduces bandwidth
for a single idle node by a factor of ~16, from 577kbps down to 36kbps.
This doesn't require any changes to the wallets, simply upgrading the
public servers will begin sending compressed data to all clients that
support it.
Note: this commit adds a dependency on zlib for non-apple platforms
(it was already required on apple)
Fix fc::thread to set the thread name in the Debugger when the name is set after thread construction.
When terminating a thread, cancel any tasks that have been schedule()d or async()ed but have not yet started executing.
When canceling a task blocked on a fc::mutex, notify the thread to reschedule the task to allow it to clean up the mutex's block list.
Fix a bug in managing the recursive lock count when tasks block on a fc::mutex
Reorder the code that manages the hard links for log files to avoid an exception generated by unlinking a locked file on Windows.
and writes. This was previously unsafe because we almost always passed read/write
buffers to boost that were on the stack. Canceling the task deleted the stack and
therefore the buffer, but couldn't reliably prevent boost from writing to the buffer
if data came in after the cancel. This commit adds variants of the read and write
functions that take a shared_ptr<char> instead of a raw char* as the buffer, and
these variants will ensure the shared_ptr will outlive the boost::asio read/write.
Restructure udp_socket::receive_from() to something functionally identical, but has one less exception handler on the stack which I hope would make it easier to debug strange exception-handling errors encountered on win64
Re-organize read-loop execution to avoid crashes in read_loop on Win32 when ntp object destructs. Call quit on ntp_thread when ntp object destructs to free up thread (eventually we need to make fc::threads call quit in their destructor, but more work is required to make that work properly).
~fc::udp_socket now closes socket on destruction (consider doing this for tcp sockets as well).
