mirror of
https://github.com/octoleo/restic.git
synced 2024-12-22 19:08:55 +00:00
104 lines
2.2 KiB
Go
104 lines
2.2 KiB
Go
package khepri
|
|
|
|
import "sync"
|
|
|
|
var (
|
|
chunkPool = sync.Pool{New: newChunkBuf}
|
|
nodePool = sync.Pool{New: newNode}
|
|
)
|
|
|
|
type alloc_stats struct {
|
|
m sync.Mutex
|
|
alloc_map map[string]int
|
|
free_map map[string]int
|
|
alloc int
|
|
free int
|
|
new int
|
|
all int
|
|
max int
|
|
}
|
|
|
|
var (
|
|
chunk_stats alloc_stats
|
|
node_stats alloc_stats
|
|
)
|
|
|
|
func init() {
|
|
chunk_stats.alloc_map = make(map[string]int)
|
|
chunk_stats.free_map = make(map[string]int)
|
|
}
|
|
|
|
func newChunkBuf() interface{} {
|
|
chunk_stats.m.Lock()
|
|
chunk_stats.new += 1
|
|
chunk_stats.m.Unlock()
|
|
|
|
// create buffer for iv, data and hmac
|
|
return make([]byte, maxCiphertextSize)
|
|
}
|
|
|
|
func newNode() interface{} {
|
|
node_stats.m.Lock()
|
|
node_stats.new += 1
|
|
node_stats.m.Unlock()
|
|
|
|
// create buffer for iv, data and hmac
|
|
return new(Node)
|
|
}
|
|
|
|
func GetChunkBuf(s string) []byte {
|
|
chunk_stats.m.Lock()
|
|
if _, ok := chunk_stats.alloc_map[s]; !ok {
|
|
chunk_stats.alloc_map[s] = 0
|
|
}
|
|
chunk_stats.alloc_map[s] += 1
|
|
chunk_stats.all += 1
|
|
if chunk_stats.all > chunk_stats.max {
|
|
chunk_stats.max = chunk_stats.all
|
|
}
|
|
chunk_stats.m.Unlock()
|
|
|
|
return chunkPool.Get().([]byte)
|
|
}
|
|
|
|
func FreeChunkBuf(s string, buf []byte) {
|
|
chunk_stats.m.Lock()
|
|
if _, ok := chunk_stats.free_map[s]; !ok {
|
|
chunk_stats.free_map[s] = 0
|
|
}
|
|
chunk_stats.free_map[s] += 1
|
|
chunk_stats.all -= 1
|
|
chunk_stats.m.Unlock()
|
|
|
|
chunkPool.Put(buf)
|
|
}
|
|
|
|
func GetNode() *Node {
|
|
node_stats.m.Lock()
|
|
node_stats.alloc += 1
|
|
node_stats.all += 1
|
|
if node_stats.all > node_stats.max {
|
|
node_stats.max = node_stats.all
|
|
}
|
|
node_stats.m.Unlock()
|
|
return nodePool.Get().(*Node)
|
|
}
|
|
|
|
func FreeNode(n *Node) {
|
|
node_stats.m.Lock()
|
|
node_stats.all -= 1
|
|
node_stats.free += 1
|
|
node_stats.m.Unlock()
|
|
nodePool.Put(n)
|
|
}
|
|
|
|
func PoolAlloc() {
|
|
// fmt.Fprintf(os.Stderr, "alloc max: %d, new: %d\n", chunk_stats.max, chunk_stats.new)
|
|
// for k, v := range chunk_stats.alloc_map {
|
|
// fmt.Fprintf(os.Stderr, "alloc[%s] %d, free %d diff: %d\n", k, v, chunk_stats.free_map[k], v-chunk_stats.free_map[k])
|
|
// }
|
|
|
|
// fmt.Fprintf(os.Stderr, "nodes alloc max: %d, new: %d\n", node_stats.max, node_stats.new)
|
|
// fmt.Fprintf(os.Stderr, "alloc %d, free %d diff: %d\n", node_stats.alloc, node_stats.free, node_stats.alloc-node_stats.free)
|
|
}
|