From f6a137cd43ba5550762907b285ecdf59b8050fe5 Mon Sep 17 00:00:00 2001
From: ClSlaid <cailue@bupt.edu.cn>
Date: Sat, 28 Oct 2023 23:25:30 +0800
Subject: [PATCH] patch: make BufReader preload its buffer

Signed-off-by: ClSlaid <cailue@bupt.edu.cn>
---
 libs/clipboard/src/platform/unix/local_file.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/libs/clipboard/src/platform/unix/local_file.rs b/libs/clipboard/src/platform/unix/local_file.rs
index 2ebe694fa..be7ef557e 100644
--- a/libs/clipboard/src/platform/unix/local_file.rs
+++ b/libs/clipboard/src/platform/unix/local_file.rs
@@ -1,7 +1,7 @@
 use std::{
     collections::HashSet,
     fs::File,
-    io::{BufReader, Read, Seek},
+    io::{BufRead, BufReader, Read, Seek},
     os::unix::prelude::PermissionsExt,
     path::PathBuf,
     sync::atomic::{AtomicU64, Ordering},
@@ -175,7 +175,11 @@ impl LocalFile {
                 path: self.path.clone(),
                 err: e,
             })?;
-            let reader = BufReader::with_capacity(BLOCK_SIZE as usize, handle);
+            let mut reader = BufReader::with_capacity(BLOCK_SIZE as usize * 2, handle);
+            reader.fill_buf().map_err(|e| CliprdrError::FileError {
+                path: self.path.clone(),
+                err: e,
+            })?;
             self.handle = Some(reader);
         };
         Ok(())