Move piece into its own file

misc.go

@@ -4,8 +4,6 @@ import (
 	"crypto"
 	"errors"
 	"fmt"
-	"math/rand"
-	"sync"
 	"time"
 
 	"github.com/anacrolix/torrent/peer_protocol"
@@ -33,44 +31,6 @@ func (ih *InfoHash) HexString() string {
 	return fmt.Sprintf("%x", ih[:])
 }
 
-type piecePriority byte
-
-const (
-	piecePriorityNone piecePriority = iota
-	piecePriorityNormal
-	piecePriorityReadahead
-	piecePriorityNext
-	piecePriorityNow
-)
-
-type piece struct {
-	Hash              pieceSum
-	PendingChunkSpecs map[chunkSpec]struct{}
-	Hashing           bool
-	QueuedForHash     bool
-	EverHashed        bool
-	Event             sync.Cond
-	Priority          piecePriority
-}
-
-func (p *piece) shuffledPendingChunkSpecs() (css []chunkSpec) {
-	if len(p.PendingChunkSpecs) == 0 {
-		return
-	}
-	css = make([]chunkSpec, 0, len(p.PendingChunkSpecs))
-	for cs := range p.PendingChunkSpecs {
-		css = append(css, cs)
-	}
-	if len(css) <= 1 {
-		return
-	}
-	for i := range css {
-		j := rand.Intn(i + 1)
-		css[i], css[j] = css[j], css[i]
-	}
-	return
-}
-
 func lastChunkSpec(pieceLength peer_protocol.Integer) (cs chunkSpec) {
 	cs.Begin = (pieceLength - 1) / chunkSize * chunkSize
 	cs.Length = pieceLength - cs.Begin

piece.go

@@ -0,0 +1,44 @@
+package torrent
+
+import (
+	"math/rand"
+	"sync"
+)
+
+type piecePriority byte
+
+const (
+	piecePriorityNone piecePriority = iota
+	piecePriorityNormal
+	piecePriorityReadahead
+	piecePriorityNext
+	piecePriorityNow
+)
+
+type piece struct {
+	Hash              pieceSum
+	PendingChunkSpecs map[chunkSpec]struct{}
+	Hashing           bool
+	QueuedForHash     bool
+	EverHashed        bool
+	Event             sync.Cond
+	Priority          piecePriority
+}
+
+func (p *piece) shuffledPendingChunkSpecs() (css []chunkSpec) {
+	if len(p.PendingChunkSpecs) == 0 {
+		return
+	}
+	css = make([]chunkSpec, 0, len(p.PendingChunkSpecs))
+	for cs := range p.PendingChunkSpecs {
+		css = append(css, cs)
+	}
+	if len(css) <= 1 {
+		return
+	}
+	for i := range css {
+		j := rand.Intn(i + 1)
+		css[i], css[j] = css[j], css[i]
+	}
+	return
+}