feat(store): add MinerMeta to context

Author: 0x5459

manager-plugin/objstore/miner/context.go

@@ -0,0 +1,20 @@
+package miner
+
+import "context"
+
+type MinerMeta struct {
+	ID uint64 // minerID
+}
+
+type minerKey struct{}
+
+// NewContext creates a new context with MinerMeta attached.
+func NewContext(ctx context.Context, p *MinerMeta) context.Context {
+	return context.WithValue(ctx, minerKey{}, p)
+}
+
+// FromContext returns the MinerMeta in ctx if it exists.
+func FromContext(ctx context.Context) (miner *MinerMeta, ok bool) {
+	miner, ok = ctx.Value(minerKey{}).(*MinerMeta)
+	return
+}

manager-plugin/objstore/objstore.go

@@ -85,8 +85,11 @@ type Store interface {
 	InstanceInfo(ctx context.Context) (InstanceInfo, error)
 
 	// Get returns an io.ReadCloser object for reading the file corresponding to the resourceName from this store.
-	// the resourceName value looks like this:
-	// 	- "cache/sc-02-data-tree-r-last.dat"
+	// the resourceName value looks like these:
+	// 	- "cache/s-t010001-1/sc-02-data-tree-r-last-0.dat"
+	//  - "update-cache/s-t010001-1/sc-02-data-tree-r-last-0.dat"
+	// 	- "sealed/s-t010001-101"
+	//  - "update/s-t010001-101"
 	Get(ctx context.Context, resourceName string) (io.ReadCloser, error)
 	// Del removes the file corresponding to given resourceName from this store
 	Del(ctx context.Context, resourceName string) error