Fix cross-lock race in libev reactor thread exit check - #981

Fix cross-lock race in libev reactor thread exit check#981

mykaul wants to merge 2 commits into

scylladb:masterscylladb/python-driver:masterfrom

mykaul:fix/libev-reactor-lock-racemykaul/python-driver:fix/libev-reactor-lock-raceCopy head branch name to clipboard