change sync to detect deadlock

src/server/settings/torrent.go

@@ -2,8 +2,8 @@ package settings
 
 import (
 	"encoding/json"
+	sync "github.com/sasha-s/go-deadlock"
 	"sort"
-	"sync"
 
 	"github.com/anacrolix/torrent"
 	"github.com/anacrolix/torrent/metainfo"

src/server/torr/btserver.go

@@ -1,8 +1,8 @@
 package torr
 
 import (
+	sync "github.com/sasha-s/go-deadlock"
 	"log"
-	"sync"
 	"time"
 
 	"server/settings"

src/server/torr/storage/torrstor/buffer.go

@@ -2,7 +2,7 @@ package torrstor
 
 import (
 	"fmt"
-	"sync"
+	sync "github.com/sasha-s/go-deadlock"
 )
 
 type buffer struct {

src/server/torr/storage/torrstor/cache.go

@@ -1,8 +1,8 @@
 package torrstor
 
 import (
+	sync "github.com/sasha-s/go-deadlock"
 	"sort"
-	"sync"
 
 	"github.com/anacrolix/torrent"
 	"server/log"

src/server/torr/storage/torrstor/piece.go

@@ -2,8 +2,8 @@ package torrstor
 
 import (
 	"errors"
+	sync "github.com/sasha-s/go-deadlock"
 	"io"
-	"sync"
 	"time"
 
 	"github.com/anacrolix/torrent/storage"

src/server/torr/storage/torrstor/reader.go

@@ -1,8 +1,8 @@
 package torrstor
 
 import (
+	sync "github.com/sasha-s/go-deadlock"
 	"io"
-	"sync"
 
 	"github.com/anacrolix/torrent"
 	"server/log"

src/server/torr/storage/torrstor/storage.go

@@ -1,7 +1,7 @@
 package torrstor
 
 import (
-	"sync"
+	sync "github.com/sasha-s/go-deadlock"
 
 	"server/torr/storage"
 

src/server/torr/torrent.go

@@ -5,9 +5,10 @@ import (
 	"fmt"
 	"io"
 	"sort"
-	"sync"
 	"time"
 
+	sync "github.com/sasha-s/go-deadlock"
+
 	"server/log"
 	"server/settings"
 	"server/torr/state"

src/server/utils/prallel.go

@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"sync"
+	sync "github.com/sasha-s/go-deadlock"
 )
 
 func ParallelFor(begin, end int, fn func(i int)) {