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25 lines
831 B
Rust
25 lines
831 B
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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pub fn create_basic_runtime() -> tokio::runtime::Runtime {
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tokio::runtime::Builder::new_current_thread()
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.enable_io()
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.enable_time()
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// This limits the number of threads for blocking operations (like for
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// synchronous fs ops) or CPU bound tasks like when we run dprint in
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// parallel for deno fmt.
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// The default value is 512, which is an unhelpfully large thread pool. We
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// don't ever want to have more than a couple dozen threads.
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.max_blocking_threads(32)
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.build()
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.unwrap()
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}
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// TODO(ry) rename to run_local ?
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pub fn run_basic<F, R>(future: F) -> R
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where
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F: std::future::Future<Output = R>,
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{
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let rt = create_basic_runtime();
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let local = tokio::task::LocalSet::new();
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local.block_on(&rt, future)
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}
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