runtime: merge multi & single threaded runtimes (#1716)

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Simplify Tokio's runtime construct by combining both Runtime variants
into a single type. The execution style can be controlled by a
configuration setting on `Builder`.

The implication of this change is that there is no longer any way to
spawn `!Send` futures. This, however, is a temporary limitation. A
different strategy will be employed for supporting `!Send` futures.

Included in this patch is a rework of `task::JoinHandle` to support
using this type from both the thread-pool and current-thread executors.

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This commit is contained in:

Carl Lerche

2019-11-01 13:18:52 -07:00

committed by GitHub

parent 742d89b0f3

commit d70c928d88

49 changed files with 1551 additions and 3613 deletions

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tokio/src/executor/current_thread/mod.rs

+283 -776

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