mirror of https://github.com/sharkdp/fd.git
45 lines
1.7 KiB
Rust
45 lines
1.7 KiB
Rust
// Copyright (c) 2017 fd developers
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// Licensed under the Apache License, Version 2.0
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// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0>
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// or the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
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// at your option. All files in the project carrying such
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// notice may not be copied, modified, or distributed except
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// according to those terms.
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use std::path::PathBuf;
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use std::sync::{Arc, Mutex};
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use std::sync::mpsc::Receiver;
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use super::TokenizedCommand;
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/// An event loop that listens for inputs from the `rx` receiver. Each received input will
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/// generate a command with the supplied command template. The generated command will then
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/// be executed, and this process will continue until the receiver's sender has closed.
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pub fn job(
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rx: Arc<Mutex<Receiver<PathBuf>>>,
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cmd: Arc<TokenizedCommand>,
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out_perm: Arc<Mutex<()>>,
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) {
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// A string buffer that will be re-used in each iteration.
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let buffer = &mut String::with_capacity(256);
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loop {
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// Create a lock on the shared receiver for this thread.
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let lock = rx.lock().unwrap();
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// Obtain the next path from the receiver, else if the channel
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// has closed, exit from the loop
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let value: PathBuf = match lock.recv() {
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Ok(value) => value,
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Err(_) => break,
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};
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// Drop the lock so that other threads can read from the the receiver.
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drop(lock);
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// Generate a command to store within the buffer, and execute the command.
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// Note that the `then_execute()` method will clear the buffer for us.
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cmd.generate(buffer, &value, out_perm.clone())
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.then_execute();
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}
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}
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