mirror of https://github.com/sharkdp/fd.git
60 lines
2.0 KiB
Rust
60 lines
2.0 KiB
Rust
use super::CommandTemplate;
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use crate::exit_codes::{merge_exitcodes, ExitCode};
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use crate::walk::WorkerResult;
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use std::path::PathBuf;
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use std::sync::mpsc::Receiver;
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use std::sync::{Arc, Mutex};
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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<WorkerResult>>>,
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cmd: Arc<CommandTemplate>,
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out_perm: Arc<Mutex<()>>,
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show_filesystem_errors: bool,
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) -> ExitCode {
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let mut results: Vec<ExitCode> = Vec::new();
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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 result 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(WorkerResult::Entry(val)) => val,
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Ok(WorkerResult::Error(err)) => {
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if show_filesystem_errors {
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print_error!("{}", err);
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}
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continue;
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}
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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 receiver.
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drop(lock);
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// Generate a command, execute it and store its exit code.
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results.push(cmd.generate_and_execute(&value, Arc::clone(&out_perm)))
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}
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// Returns error in case of any error.
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merge_exitcodes(results)
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}
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pub fn batch(
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rx: Receiver<WorkerResult>,
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cmd: &CommandTemplate,
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show_filesystem_errors: bool,
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) -> ExitCode {
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let paths = rx.iter().filter_map(|value| match value {
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WorkerResult::Entry(val) => Some(val),
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WorkerResult::Error(err) => {
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if show_filesystem_errors {
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print_error!("{}", err);
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}
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None
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}
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});
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cmd.generate_and_execute_batch(paths)
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}
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