Threading - TLS connections on multiple threads

[ashamis]

Process TLS connections on multiple threads

part of #774

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@7e30b8d). Click here to learn what that means.
The diff coverage is 46.03%.

@@            Coverage Diff            @@
##             master     #773   +/-   ##
=========================================
  Coverage          ?   78.02%           
=========================================
  Files             ?      153           
  Lines             ?    11689           
  Branches          ?        0           
=========================================
  Hits              ?     9120           
  Misses            ?     2569           
  Partials          ?        0

Flag	Coverage Δ
#e2e_BFT	52.48% <30.95%> (?)
#e2e_CFT	72.99% <54.84%> (?)
#unit_BFT	53.92% <68.75%> (?)
#unit_CFT	68.67% <55.56%> (?)

Impacted Files	Coverage Δ
src/enclave/rpchandler.h	50% <ø> (ø)
src/consensus/raft/rafttypes.h	91.67% <ø> (ø)
src/node/nodestate.h	81.99% <ø> (ø)
src/node/history.h	57.02% <0%> (ø)
src/consensus/pbft/libbyz/Prepared_cert.h	0% <0%> (ø)
src/consensus/ledgerenclave.h	66.67% <0%> (ø)
src/node/rpc/frontend.h	78.98% <100%> (ø)
src/host/nodeconnections.h	93.2% <100%> (ø)
src/enclave/rpccontext.h	86.36% <100%> (ø)
src/consensus/raft/raft.h	82.03% <100%> (ø)
... and 6 more

[ghost]

threading_alloc_free_8@4505 aka 20200203.15 vs master ewma over 30 builds from 4071 to 4503