utilities/fd
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Refactor: use some nice Rust methods in buffering code

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This commit is contained in:
Niklas Mohrin 2021-08-21 22:44:35 +02:00 committed by David Peter
parent 45a86459b2
commit 3de948ae0d
1 changed files with 12 additions and 15 deletions
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27
src/walk.rs
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@ -40,6 +40,8 @@ pub enum WorkerResult {
/// Maximum size of the output buffer before flushing results to the console
pub const MAX_BUFFER_LENGTH: usize = 1000;
/// Default duration until output buffering switches to streaming.
pub const DEFAULT_MAX_BUFFER_TIME: time::Duration = time::Duration::from_millis(100);
/// Recursively scan the given search path for files / pathnames matching the pattern.
///
@ -220,9 +222,7 @@ fn spawn_receiver(
let mut mode = ReceiverMode::Buffering;
// Maximum time to wait before we start streaming to the console.
let max_buffer_time = config
.max_buffer_time
.unwrap_or_else(|| time::Duration::from_millis(100));
let max_buffer_time = config.max_buffer_time.unwrap_or(DEFAULT_MAX_BUFFER_TIME);
let stdout = io::stdout();
let mut stdout = stdout.lock();
@ -242,7 +242,7 @@ fn spawn_receiver(
// Have we reached the maximum buffer size or maximum buffering time?
if buffer.len() > MAX_BUFFER_LENGTH
|| time::Instant::now() - start > max_buffer_time
|| start.elapsed() > max_buffer_time
{
// Flush the buffer
for v in &buffer {
@ -265,6 +265,11 @@ fn spawn_receiver(
}
num_results += 1;
if let Some(max_results) = config.max_results {
if num_results >= max_results {
break;
}
}
}
WorkerResult::Error(err) => {
if show_filesystem_errors {
@ -272,21 +277,13 @@ fn spawn_receiver(
}
}
}
if let Some(max_results) = config.max_results {
if num_results >= max_results {
break;
}
}
}
// If we have finished fast enough (faster than max_buffer_time), we haven't streamed
// anything to the console, yet. In this case, sort the results and print them:
if !buffer.is_empty() {
buffer.sort();
for value in buffer {
output::print_entry(&mut stdout, &value, &config, &wants_to_quit);
}
buffer.sort();
for value in buffer {
output::print_entry(&mut stdout, &value, &config, &wants_to_quit);
}
if config.quiet {