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# Conflicts: # datafusion/proto/src/logical_plan/from_proto.rs
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# Licensed to the Apache Software Foundation (ASF) under one | ||
# or more contributor license agreements. See the NOTICE file | ||
# distributed with this work for additional information | ||
# regarding copyright ownership. The ASF licenses this file | ||
# to you under the Apache License, Version 2.0 (the | ||
# "License"); you may not use this file except in compliance | ||
# with the License. You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, | ||
# software distributed under the License is distributed on an | ||
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
# KIND, either express or implied. See the License for the | ||
# specific language governing permissions and limitations | ||
# under the License. | ||
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[package] | ||
name = "datafusion-common-runtime" | ||
description = "Common Runtime functionality for DataFusion query engine" | ||
keywords = ["arrow", "query", "sql"] | ||
readme = "README.md" | ||
version = { workspace = true } | ||
edition = { workspace = true } | ||
homepage = { workspace = true } | ||
repository = { workspace = true } | ||
license = { workspace = true } | ||
authors = { workspace = true } | ||
rust-version = { workspace = true } | ||
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[lib] | ||
name = "datafusion_common_runtime" | ||
path = "src/lib.rs" | ||
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[dependencies] | ||
tokio = { workspace = true } |
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<!--- | ||
Licensed to the Apache Software Foundation (ASF) under one | ||
or more contributor license agreements. See the NOTICE file | ||
distributed with this work for additional information | ||
regarding copyright ownership. The ASF licenses this file | ||
to you under the Apache License, Version 2.0 (the | ||
"License"); you may not use this file except in compliance | ||
with the License. You may obtain a copy of the License at | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
Unless required by applicable law or agreed to in writing, | ||
software distributed under the License is distributed on an | ||
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
KIND, either express or implied. See the License for the | ||
specific language governing permissions and limitations | ||
under the License. | ||
--> | ||
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# DataFusion Common Runtime | ||
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[DataFusion][df] is an extensible query execution framework, written in Rust, that uses Apache Arrow as its in-memory format. | ||
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This crate is a submodule of DataFusion that provides common utilities. | ||
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[df]: https://crates.io/crates/datafusion |
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// Licensed to the Apache Software Foundation (ASF) under one | ||
// or more contributor license agreements. See the NOTICE file | ||
// distributed with this work for additional information | ||
// regarding copyright ownership. The ASF licenses this file | ||
// to you under the Apache License, Version 2.0 (the | ||
// "License"); you may not use this file except in compliance | ||
// with the License. You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, | ||
// software distributed under the License is distributed on an | ||
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
// KIND, either express or implied. See the License for the | ||
// specific language governing permissions and limitations | ||
// under the License. | ||
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use std::future::Future; | ||
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use tokio::task::{JoinError, JoinSet}; | ||
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/// Helper that provides a simple API to spawn a single task and join it. | ||
/// Provides guarantees of aborting on `Drop` to keep it cancel-safe. | ||
/// | ||
/// Technically, it's just a wrapper of `JoinSet` (with size=1). | ||
#[derive(Debug)] | ||
pub struct SpawnedTask<R> { | ||
inner: JoinSet<R>, | ||
} | ||
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impl<R: 'static> SpawnedTask<R> { | ||
pub fn spawn<T>(task: T) -> Self | ||
where | ||
T: Future<Output = R>, | ||
T: Send + 'static, | ||
R: Send, | ||
{ | ||
let mut inner = JoinSet::new(); | ||
inner.spawn(task); | ||
Self { inner } | ||
} | ||
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pub fn spawn_blocking<T>(task: T) -> Self | ||
where | ||
T: FnOnce() -> R, | ||
T: Send + 'static, | ||
R: Send, | ||
{ | ||
let mut inner = JoinSet::new(); | ||
inner.spawn_blocking(task); | ||
Self { inner } | ||
} | ||
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pub async fn join(mut self) -> Result<R, JoinError> { | ||
self.inner | ||
.join_next() | ||
.await | ||
.expect("`SpawnedTask` instance always contains exactly 1 task") | ||
} | ||
} |
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// Licensed to the Apache Software Foundation (ASF) under one | ||
// or more contributor license agreements. See the NOTICE file | ||
// distributed with this work for additional information | ||
// regarding copyright ownership. The ASF licenses this file | ||
// to you under the Apache License, Version 2.0 (the | ||
// "License"); you may not use this file except in compliance | ||
// with the License. You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, | ||
// software distributed under the License is distributed on an | ||
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
// KIND, either express or implied. See the License for the | ||
// specific language governing permissions and limitations | ||
// under the License. | ||
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pub mod common; | ||
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pub use common::SpawnedTask; |
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