swarm/network, swarm/storage: Preserve opentracing contexts#19022

Merged

nonsense merged 8 commits intoethereum:masterfrom

ethersphere:fetcher-tracing-context

Feb 8, 2019

Commits on Feb 4, 2019

Commits on Feb 6, 2019

swarm/network: remove quitFunc
nonsense
committed

Commits on Feb 7, 2019

swarm/network: Make trace persist across priorityqueue
nolash
committed