From eead2d89b23532ce34ca51916ac5a2505d45006b Mon Sep 17 00:00:00 2001
From: qydysky <32743305+qydysky@users.noreply.github.com>
Date: Sun, 16 Oct 2022 15:37:48 +0800
Subject: [PATCH] fix

---
 file/FileWR.go      | 12 +++++++++---
 file/FileWR_test.go | 16 +++++++---------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/file/FileWR.go b/file/FileWR.go
index add3770..139922b 100644
--- a/file/FileWR.go
+++ b/file/FileWR.go
@@ -24,6 +24,7 @@ type File struct {
 	file   *os.File
 	wr     io.Writer
 	rr     io.Reader
+	cu     int64
 	sync.RWMutex
 }
 
@@ -168,7 +169,7 @@ func (t *File) Seed(index int64) (e error) {
 	if index < 0 {
 		whenc = 2
 	}
-	t.Config.CurIndex, e = t.file.Seek(index, whenc)
+	t.cu, e = t.file.Seek(index, whenc)
 
 	return nil
 }
@@ -200,6 +201,8 @@ func (t *File) Close() error {
 	if t.file != nil {
 		if e := t.file.Close(); e != nil {
 			return e
+		} else {
+			t.file = nil
 		}
 	}
 	return nil
@@ -234,7 +237,8 @@ func (t *File) getRWCloser() {
 				panic(e)
 			} else {
 				if t.Config.CurIndex > 0 {
-					t.Config.CurIndex, e = f.Seek(t.Config.CurIndex, 0)
+					t.cu = t.Config.CurIndex
+					t.cu, e = f.Seek(t.cu, 0)
 					if e != nil {
 						panic(e)
 					}
@@ -246,11 +250,13 @@ func (t *File) getRWCloser() {
 				panic(e)
 			} else {
 				if t.Config.CurIndex != 0 {
+					t.cu = t.Config.CurIndex
 					whenc := 0
 					if t.Config.CurIndex < 0 {
+						t.cu = t.cu + 1
 						whenc = 2
 					}
-					t.Config.CurIndex, e = f.Seek(t.Config.CurIndex, whenc)
+					t.cu, e = f.Seek(t.cu, whenc)
 					if e != nil {
 						panic(e)
 					}
diff --git a/file/FileWR_test.go b/file/FileWR_test.go
index 91e1851..430efd9 100644
--- a/file/FileWR_test.go
+++ b/file/FileWR_test.go
@@ -11,27 +11,25 @@ import (
 )
 
 func TestWriteReadDelSync(t *testing.T) {
-	f := New("test/rwd.txt", -1, true)
-	if i, e := f.Write([]byte("sss"), true); i == 0 || e != nil {
+	f := New("test/rwd.txt", -6, true)
+	if i, e := f.Write([]byte("sssa\n"), true); i == 0 || e != nil {
 		t.Fatal(e)
 	}
 
-	var buf = make([]byte, 3)
+	var buf = make([]byte, 5)
 	if i, e := f.Read(buf); i == 0 || e != nil {
 		t.Fatal(i, e)
 	} else {
-		if !bytes.Equal(buf[:i], []byte("sss")) {
-			t.Fatal(string(buf[:i]), e)
+		if !bytes.Equal(buf[:i], []byte("sssa\n")) {
+			t.Fatal(i, string(buf), e)
 		}
 	}
 
 	if i, e := f.Read(buf); i == 0 || e != nil {
 		t.Fatal(i, e)
 	} else {
-		for _, v := range buf {
-			if v != 's' {
-				t.Fatal(v)
-			}
+		if !bytes.Equal(buf[:i], []byte("sssa\n")) {
+			t.Fatal(i, string(buf), e)
 		}
 	}
 
-- 
2.39.2