From: Sergey Matveev <stargrave@stargrave.org>
Date: Mon, 28 Nov 2022 09:44:03 +0000 (+0300)
Subject: Simplify With ReadAt/WriteAt
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=b547eba1a0fd8162ce97962e5a364ad1e1a79ac4;p=btrtrc.git

Simplify With ReadAt/WriteAt
---

diff --git a/cmd/btrtrc/pc.go b/cmd/btrtrc/pc.go
index 6f81923b..56e174a4 100644
--- a/cmd/btrtrc/pc.go
+++ b/cmd/btrtrc/pc.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"io"
 	"os"
 	"sync"
 
@@ -26,12 +25,8 @@ func (self *BFPieceCompletion) Get(pk metainfo.PieceKey) (c storage.Completion,
 		return
 	}
 	defer fd.Close()
-	_, err = fd.Seek(int64(pk.Index), io.SeekStart)
-	if err != nil {
-		return
-	}
 	b := []byte{0}
-	_, err = fd.Read(b)
+	_, err = fd.ReadAt(b, int64(pk.Index))
 	if err != nil {
 		return
 	}
@@ -58,14 +53,11 @@ func (self *BFPieceCompletion) Set(pk metainfo.PieceKey, complete bool) error {
 		return err
 	}
 	defer fd.Close()
-	if _, err = fd.Seek(int64(pk.Index), io.SeekStart); err != nil {
-		return err
-	}
 	b := []byte{'1'}
 	if !complete {
 		b[0] = '0'
 	}
-	if _, err = fd.Write(b); err != nil {
+	if _, err = fd.WriteAt(b, int64(pk.Index)); err != nil {
 		return err
 	}
 	return nil