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Speed up eframe state storage #3353

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merged 1 commit into from
Sep 18, 2023
Merged

Speed up eframe state storage #3353

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8 changes: 6 additions & 2 deletions crates/eframe/src/native/file_storage.rs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
use std::{
collections::HashMap,
io::Write,
path::{Path, PathBuf},
};

Expand Down Expand Up @@ -126,10 +127,13 @@ fn save_to_disk(file_path: &PathBuf, kv: &HashMap<String, String>) {

match std::fs::File::create(file_path) {
Ok(file) => {
let mut writer = std::io::BufWriter::new(file);
let config = Default::default();

if let Err(err) = ron::ser::to_writer_pretty(file, &kv, config) {
log::warn!("Failed to serialize app state: {err}");
if let Err(err) = ron::ser::to_writer_pretty(&mut writer, &kv, config)
.and_then(|_| writer.flush().map_err(|err| err.into()))
{
log::warn!("Failed to serialize app state: {}", err);
} else {
log::trace!("Persisted to {:?}", file_path);
}
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