From 59a852e4188e18e587b6d54f646a6780f4d1f12c Mon Sep 17 00:00:00 2001
From: Martin Holst Swende <martin@swende.se>
Date: Mon, 29 Jan 2018 15:17:59 +0100
Subject: vendor: update leveldb to 211f780 (poolfix) (#15988)

---
 vendor/github.com/syndtr/goleveldb/.travis.yml         | 12 ------------
 vendor/github.com/syndtr/goleveldb/README.md           |  4 +++-
 vendor/github.com/syndtr/goleveldb/leveldb/db.go       | 17 ++++++++++++-----
 vendor/github.com/syndtr/goleveldb/leveldb/db_write.go | 10 +++++++++-
 4 files changed, 24 insertions(+), 19 deletions(-)
 delete mode 100644 vendor/github.com/syndtr/goleveldb/.travis.yml

(limited to 'vendor/github.com/syndtr/goleveldb')

diff --git a/vendor/github.com/syndtr/goleveldb/.travis.yml b/vendor/github.com/syndtr/goleveldb/.travis.yml
deleted file mode 100644
index 82de37735..000000000
--- a/vendor/github.com/syndtr/goleveldb/.travis.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-language: go
-
-go:
-  - 1.4
-  - 1.5
-  - 1.6
-  - 1.7
-  - tip
-
-script:
-  - go test -timeout 1h ./...
-  - go test -timeout 30m -race -run "TestDB_(Concurrent|GoleveldbIssue74)" ./leveldb
diff --git a/vendor/github.com/syndtr/goleveldb/README.md b/vendor/github.com/syndtr/goleveldb/README.md
index 259286f55..41a47614c 100644
--- a/vendor/github.com/syndtr/goleveldb/README.md
+++ b/vendor/github.com/syndtr/goleveldb/README.md
@@ -10,13 +10,15 @@ Installation
 Requirements
 -----------
 
-* Need at least `go1.4` or newer.
+* Need at least `go1.5` or newer.
 
 Usage
 -----------
 
 Create or open a database:
 ```go
+// The returned DB instance is safe for concurrent use. Which mean that all
+// DB's methods may be called concurrently from multiple goroutine.
 db, err := leveldb.OpenFile("path/to/db", nil)
 ...
 defer db.Close()
diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/db.go b/vendor/github.com/syndtr/goleveldb/leveldb/db.go
index b0cdcb3d0..ea5595eb3 100644
--- a/vendor/github.com/syndtr/goleveldb/leveldb/db.go
+++ b/vendor/github.com/syndtr/goleveldb/leveldb/db.go
@@ -32,6 +32,11 @@ type DB struct {
 	// Need 64-bit alignment.
 	seq uint64
 
+	// Stats. Need 64-bit alignment.
+	cWriteDelay            int64 // The cumulative duration of write delays
+	cWriteDelayN           int32 // The cumulative number of write delays
+	aliveSnaps, aliveIters int32
+
 	// Session.
 	s *session
 
@@ -49,9 +54,6 @@ type DB struct {
 	snapsMu   sync.Mutex
 	snapsList *list.List
 
-	// Stats.
-	aliveSnaps, aliveIters int32
-
 	// Write.
 	batchPool    sync.Pool
 	writeMergeC  chan writeMerge
@@ -321,7 +323,7 @@ func recoverTable(s *session, o *opt.Options) error {
 			}
 		}
 		err = iter.Error()
-		if err != nil {
+		if err != nil && !errors.IsCorrupted(err) {
 			return
 		}
 		err = tw.Close()
@@ -392,7 +394,7 @@ func recoverTable(s *session, o *opt.Options) error {
 			}
 			imax = append(imax[:0], key...)
 		}
-		if err := iter.Error(); err != nil {
+		if err := iter.Error(); err != nil && !errors.IsCorrupted(err) {
 			iter.Release()
 			return err
 		}
@@ -904,6 +906,8 @@ func (db *DB) GetSnapshot() (*Snapshot, error) {
 //		Returns the number of files at level 'n'.
 //	leveldb.stats
 //		Returns statistics of the underlying DB.
+//	leveldb.writedelay
+//		Returns cumulative write delay caused by compaction.
 //	leveldb.sstables
 //		Returns sstables list for each level.
 //	leveldb.blockpool
@@ -955,6 +959,9 @@ func (db *DB) GetProperty(name string) (value string, err error) {
 				level, len(tables), float64(tables.size())/1048576.0, duration.Seconds(),
 				float64(read)/1048576.0, float64(write)/1048576.0)
 		}
+	case p == "writedelay":
+		writeDelayN, writeDelay := atomic.LoadInt32(&db.cWriteDelayN), time.Duration(atomic.LoadInt64(&db.cWriteDelay))
+		value = fmt.Sprintf("DelayN:%d Delay:%s", writeDelayN, writeDelay)
 	case p == "sstables":
 		for level, tables := range v.levels {
 			value += fmt.Sprintf("--- level %d ---\n", level)
diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/db_write.go b/vendor/github.com/syndtr/goleveldb/leveldb/db_write.go
index 5b6cb487d..31f4bc5ef 100644
--- a/vendor/github.com/syndtr/goleveldb/leveldb/db_write.go
+++ b/vendor/github.com/syndtr/goleveldb/leveldb/db_write.go
@@ -7,6 +7,7 @@
 package leveldb
 
 import (
+	"sync/atomic"
 	"time"
 
 	"github.com/syndtr/goleveldb/leveldb/memdb"
@@ -117,6 +118,8 @@ func (db *DB) flush(n int) (mdb *memDB, mdbFree int, err error) {
 		db.writeDelayN++
 	} else if db.writeDelayN > 0 {
 		db.logf("db@write was delayed N·%d T·%v", db.writeDelayN, db.writeDelay)
+		atomic.AddInt32(&db.cWriteDelayN, int32(db.writeDelayN))
+		atomic.AddInt64(&db.cWriteDelay, int64(db.writeDelay))
 		db.writeDelay = 0
 		db.writeDelayN = 0
 	}
@@ -143,7 +146,7 @@ func (db *DB) unlockWrite(overflow bool, merged int, err error) {
 	}
 }
 
-// ourBatch if defined should equal with batch.
+// ourBatch is batch that we can modify.
 func (db *DB) writeLocked(batch, ourBatch *Batch, merge, sync bool) error {
 	// Try to flush memdb. This method would also trying to throttle writes
 	// if it is too fast and compaction cannot catch-up.
@@ -212,6 +215,11 @@ func (db *DB) writeLocked(batch, ourBatch *Batch, merge, sync bool) error {
 		}
 	}
 
+	// Release ourBatch if any.
+	if ourBatch != nil {
+		defer db.batchPool.Put(ourBatch)
+	}
+
 	// Seq number.
 	seq := db.seq + 1
 
-- 
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