* Fix unsafe calls and safeguard WebSocketMessage from being called w/
temporaries
* Use unnamed namespace to express internal linkage
* Avoid returning references that are mutex protected
Motivation for this MR
The antipattern of returning references to mutex protected members was
removed. Since a caller can hold the reference it would make all class
level locking meaningless.
Instead values are returned. The IXWebSocketPerMessageDeflateOptions
class was shrunk by 7 bytes (1 padding + 2*3) after changing the int
members to the used uint8_t; side effects of that were handled.
An inefficient "string -> int" was replaced by standard library. As
seen here http://coliru.stacked-crooked.com/a/46b5990bafb9c626 this
gives an order of magnitude better performance.
* introduce send fragment
* can pass a fin frame
* can send messages which are a perfect multiple of the chunk size
* set fin only for last fragment
* cleanup
* last fragment should be of type CONTINUATION
* Add simple send and receive programs
* speedups receiving + better way to wait for thing
* receive speedup by using linked list of chunks instead of large array
* document bug
* use chunks to receive data
* trailing spaces
