* Use tokio runtime handle instead of TaskExecutor abstraction Before this pr we had the `TaskExecutor` abstraction which theoretically allowed that any futures executor could have been used. However, this was never tested and is currently not really required. Anyone running a node currently only used tokio and nothing else (because this was hard coded in CLI). So, this pr removes the `TaskExecutor` abstraction and relies directly on the tokio runtime handle. Besides this changes, this pr also makes sure that the http and ws rpc server use the same tokio runtime. This fixes a panic that occurred when you drop the rpc servers inside an async function (tokio doesn't like that a tokio runtime is dropped in the async context of another tokio runtime). As we don't use any custom runtime in the http rpc server anymore, this pr also removes the `rpc-http-threads` cli argument. If external parties complain that there aren't enough threads for the rpc server, we could bring support for increasing the thread count of the tokio runtime. * FMT * Fix try runtime * Fix integration tests and some other optimizations * Remove warnings
Substrate ·

Substrate is a next-generation framework for blockchain innovation 🚀.
Trying it out
Simply go to substrate.dev and follow the installation instructions. You can also try out one of the tutorials.
Contributions & Code of Conduct
Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc. In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
The security policy and procedures can be found in docs/SECURITY.md.
License
- Substrate Primitives (
sp-*), Frame (frame-*) and the pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0. - Substrate Client (
/client/*/sc-*) is licensed under GPL v3.0 with a classpath linking exception.
The reason for the split-licensing is to ensure that for the vast majority of teams using Substrate to create feature-chains, then all changes can be made entirely in Apache2-licensed code, allowing teams full freedom over what and how they release and giving licensing clarity to commercial teams.
In the interests of the community, we require any deeper improvements made to Substrate's core logic (e.g. Substrate's internal consensus, crypto or database code) to be contributed back so everyone can benefit.
