/usr/share/gocode/src/github.com/docker/libnetwork/bitseq/store.go is in golang-github-docker-libnetwork-dev 0.8.0-dev.2+git20170202.599.45b4086-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | package bitseq
import (
"encoding/json"
"fmt"
"github.com/docker/libnetwork/datastore"
"github.com/docker/libnetwork/types"
)
// Key provides the Key to be used in KV Store
func (h *Handle) Key() []string {
h.Lock()
defer h.Unlock()
return []string{h.app, h.id}
}
// KeyPrefix returns the immediate parent key that can be used for tree walk
func (h *Handle) KeyPrefix() []string {
h.Lock()
defer h.Unlock()
return []string{h.app}
}
// Value marshals the data to be stored in the KV store
func (h *Handle) Value() []byte {
b, err := json.Marshal(h)
if err != nil {
return nil
}
return b
}
// SetValue unmarshals the data from the KV store
func (h *Handle) SetValue(value []byte) error {
return json.Unmarshal(value, h)
}
// Index returns the latest DB Index as seen by this object
func (h *Handle) Index() uint64 {
h.Lock()
defer h.Unlock()
return h.dbIndex
}
// SetIndex method allows the datastore to store the latest DB Index into this object
func (h *Handle) SetIndex(index uint64) {
h.Lock()
h.dbIndex = index
h.dbExists = true
h.Unlock()
}
// Exists method is true if this object has been stored in the DB.
func (h *Handle) Exists() bool {
h.Lock()
defer h.Unlock()
return h.dbExists
}
// New method returns a handle based on the receiver handle
func (h *Handle) New() datastore.KVObject {
h.Lock()
defer h.Unlock()
return &Handle{
app: h.app,
store: h.store,
}
}
// CopyTo deep copies the handle into the passed destination object
func (h *Handle) CopyTo(o datastore.KVObject) error {
h.Lock()
defer h.Unlock()
dstH := o.(*Handle)
if h == dstH {
return nil
}
dstH.Lock()
dstH.bits = h.bits
dstH.unselected = h.unselected
dstH.head = h.head.getCopy()
dstH.app = h.app
dstH.id = h.id
dstH.dbIndex = h.dbIndex
dstH.dbExists = h.dbExists
dstH.store = h.store
dstH.Unlock()
return nil
}
// Skip provides a way for a KV Object to avoid persisting it in the KV Store
func (h *Handle) Skip() bool {
return false
}
// DataScope method returns the storage scope of the datastore
func (h *Handle) DataScope() string {
h.Lock()
defer h.Unlock()
return h.store.Scope()
}
func (h *Handle) fromDsValue(value []byte) error {
var ba []byte
if err := json.Unmarshal(value, &ba); err != nil {
return fmt.Errorf("failed to decode json: %s", err.Error())
}
if err := h.FromByteArray(ba); err != nil {
return fmt.Errorf("failed to decode handle: %s", err.Error())
}
return nil
}
func (h *Handle) writeToStore() error {
h.Lock()
store := h.store
h.Unlock()
if store == nil {
return nil
}
err := store.PutObjectAtomic(h)
if err == datastore.ErrKeyModified {
return types.RetryErrorf("failed to perform atomic write (%v). Retry might fix the error", err)
}
return err
}
func (h *Handle) deleteFromStore() error {
h.Lock()
store := h.store
h.Unlock()
if store == nil {
return nil
}
return store.DeleteObjectAtomic(h)
}
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