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rename WAL#Flush to WAL#FlushAndSync (#3345)

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* rename WAL#Flush to WAL#FlushAndSync

- rename auto#Flush to auto#FlushAndSync
- cleanup WAL interface to not leak implementation details!
  * remove Group()
  * add WALReader interface and return it in SearchForEndHeight()
- add interface assertions

Refs #3337

* replace WALReader with io.ReadCloser
This commit is contained in:
Anton Kaliaev
2019-02-25 09:11:07 +04:00
committed by GitHub
parent 6797d85851
commit ec9bff5234
8 changed files with 76 additions and 62 deletions
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42
libs/autofile/group_test.go
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@ -55,7 +55,7 @@ func TestCheckHeadSizeLimit(t *testing.T) {
err := g.WriteLine(cmn.RandStr(999))
require.NoError(t, err, "Error appending to head")
}
g.Flush()
g.FlushAndSync()
assertGroupInfo(t, g.ReadGroupInfo(), 0, 0, 999000, 999000)
// Even calling checkHeadSizeLimit manually won't rotate it.
@ -65,7 +65,7 @@ func TestCheckHeadSizeLimit(t *testing.T) {
// Write 1000 more bytes.
err := g.WriteLine(cmn.RandStr(999))
require.NoError(t, err, "Error appending to head")
g.Flush()
g.FlushAndSync()
// Calling checkHeadSizeLimit this time rolls it.
g.checkHeadSizeLimit()
@ -74,7 +74,7 @@ func TestCheckHeadSizeLimit(t *testing.T) {
// Write 1000 more bytes.
err = g.WriteLine(cmn.RandStr(999))
require.NoError(t, err, "Error appending to head")
g.Flush()
g.FlushAndSync()
// Calling checkHeadSizeLimit does nothing.
g.checkHeadSizeLimit()
@ -85,7 +85,7 @@ func TestCheckHeadSizeLimit(t *testing.T) {
err = g.WriteLine(cmn.RandStr(999))
require.NoError(t, err, "Error appending to head")
}
g.Flush()
g.FlushAndSync()
assertGroupInfo(t, g.ReadGroupInfo(), 0, 1, 2000000, 1000000)
// Calling checkHeadSizeLimit rolls it again.
@ -95,7 +95,7 @@ func TestCheckHeadSizeLimit(t *testing.T) {
// Write 1000 more bytes.
_, err = g.Head.Write([]byte(cmn.RandStr(999) + "\n"))
require.NoError(t, err, "Error appending to head")
g.Flush()
g.FlushAndSync()
assertGroupInfo(t, g.ReadGroupInfo(), 0, 2, 2001000, 1000)
// Calling checkHeadSizeLimit does nothing.
@ -212,12 +212,12 @@ func TestRotateFile(t *testing.T) {
g.WriteLine("Line 1")
g.WriteLine("Line 2")
g.WriteLine("Line 3")
g.Flush()
g.FlushAndSync()
g.RotateFile()
g.WriteLine("Line 4")
g.WriteLine("Line 5")
g.WriteLine("Line 6")
g.Flush()
g.FlushAndSync()
// Read g.Head.Path+"000"
body1, err := ioutil.ReadFile(g.Head.Path + ".000")
@ -244,13 +244,13 @@ func TestFindLast1(t *testing.T) {
g.WriteLine("Line 2")
g.WriteLine("# a")
g.WriteLine("Line 3")
g.Flush()
g.FlushAndSync()
g.RotateFile()
g.WriteLine("Line 4")
g.WriteLine("Line 5")
g.WriteLine("Line 6")
g.WriteLine("# b")
g.Flush()
g.FlushAndSync()
match, found, err := g.FindLast("#")
assert.NoError(t, err)
@ -267,14 +267,14 @@ func TestFindLast2(t *testing.T) {
g.WriteLine("Line 1")
g.WriteLine("Line 2")
g.WriteLine("Line 3")
g.Flush()
g.FlushAndSync()
g.RotateFile()
g.WriteLine("# a")
g.WriteLine("Line 4")
g.WriteLine("Line 5")
g.WriteLine("# b")
g.WriteLine("Line 6")
g.Flush()
g.FlushAndSync()
match, found, err := g.FindLast("#")
assert.NoError(t, err)
@ -293,12 +293,12 @@ func TestFindLast3(t *testing.T) {
g.WriteLine("Line 2")
g.WriteLine("# b")
g.WriteLine("Line 3")
g.Flush()
g.FlushAndSync()
g.RotateFile()
g.WriteLine("Line 4")
g.WriteLine("Line 5")
g.WriteLine("Line 6")
g.Flush()
g.FlushAndSync()
match, found, err := g.FindLast("#")
assert.NoError(t, err)
@ -315,12 +315,12 @@ func TestFindLast4(t *testing.T) {
g.WriteLine("Line 1")
g.WriteLine("Line 2")
g.WriteLine("Line 3")
g.Flush()
g.FlushAndSync()
g.RotateFile()
g.WriteLine("Line 4")
g.WriteLine("Line 5")
g.WriteLine("Line 6")
g.Flush()
g.FlushAndSync()
match, found, err := g.FindLast("#")
assert.NoError(t, err)
@ -336,7 +336,7 @@ func TestWrite(t *testing.T) {
written := []byte("Medusa")
g.Write(written)
g.Flush()
g.FlushAndSync()
read := make([]byte, len(written))
gr, err := g.NewReader(0)
@ -357,11 +357,11 @@ func TestGroupReaderRead(t *testing.T) {
professor := []byte("Professor Monster")
g.Write(professor)
g.Flush()
g.FlushAndSync()
g.RotateFile()
frankenstein := []byte("Frankenstein's Monster")
g.Write(frankenstein)
g.Flush()
g.FlushAndSync()
totalWrittenLength := len(professor) + len(frankenstein)
read := make([]byte, totalWrittenLength)
@ -386,12 +386,12 @@ func TestGroupReaderRead2(t *testing.T) {
professor := []byte("Professor Monster")
g.Write(professor)
g.Flush()
g.FlushAndSync()
g.RotateFile()
frankenstein := []byte("Frankenstein's Monster")
frankensteinPart := []byte("Frankenstein")
g.Write(frankensteinPart) // note writing only a part
g.Flush()
g.FlushAndSync()
totalLength := len(professor) + len(frankenstein)
read := make([]byte, totalLength)
@ -427,7 +427,7 @@ func TestMaxIndex(t *testing.T) {
assert.Zero(t, g.MaxIndex(), "MaxIndex should be zero at the beginning")
g.WriteLine("Line 1")
g.Flush()
g.FlushAndSync()
g.RotateFile()
assert.Equal(t, 1, g.MaxIndex(), "MaxIndex should point to the last file")