GitLab

Summary:
X-link: https://github.com/facebookresearch/mobile-vision/pull/116

Pull Request resolved: https://github.com/facebookresearch/d2go/pull/398

D2 (https://github.com/facebookresearch/d2go/commit/87374efb134e539090e0b5c476809dc35bf6aedb)Go doesn't have per node initialization api, but only per worker initialization that happens per subprocess.
Some projects (like IOBT) need to way to do shared initialization before spawning all the workers in subprocess and pass this initialized shared context to the workers.
This diff adds API to create a shared context object before launching workers and then use this shared context by the runners inside the workers after launch.

Reviewed By: wat3rBro

Differential Revision: D40001329

fbshipit-source-id: 231a4e7e4da7b5db50849176c58b104c4565306a