func (s marketStore) record(m emdn.Transaction) {
k := m.Item
// Demand
tree, ok := s.itemDemand[k]
if !ok {
tree = llrb.New()
s.itemDemand[k] = tree
}
tree.ReplaceOrInsert(demtrans(m))
for tree.Len() > maxItems {
tree.DeleteMin()
}
stationPriceUpdate(s.stationDemand, m.Station, k, m.SellPrice)
// Supply
tree, ok = s.itemSupply[k]
if !ok {
tree = llrb.New()
s.itemSupply[k] = tree
}
if m.BuyPrice == 0 {
m.BuyPrice = math.MaxInt64
}
tree.ReplaceOrInsert(suptrans(m))
for tree.Len() > maxItems {
tree.DeleteMax()
}
stationPriceUpdate(s.stationSupply, m.Station, k, m.BuyPrice)
}
func InitCache() *MyError.MyError {
once.Do(func() {
DomainRRCache = &DomainRRTree{
LLRB: llrb.New(),
RWMutex: &sync.RWMutex{},
}
DomainSOACache = &DomainSOATree{
LLRB: llrb.New(),
RWMutex: &sync.RWMutex{},
}
})
return nil
}
func newShardedCache(n int, de time.Duration) *shardedCache {
max := big.NewInt(0).SetUint64(uint64(math.MaxUint32))
rnd, err := rand.Int(rand.Reader, max)
var seed uint32
if err != nil {
os.Stderr.Write([]byte("WARNING: go-cache's newShardedCache failed to read from the system CSPRNG (/dev/urandom or equivalent.) Your system's security may be compromised. Continuing with an insecure seed.\n"))
seed = insecurerand.Uint32()
} else {
seed = uint32(rnd.Uint64())
}
sc := &shardedCache{
seed: seed,
m: uint32(n),
cs: make([]*cache, n),
}
for i := 0; i < n; i++ {
c := &cache{
defaultExpiration: de,
items: map[string]Item{},
sortedItems: llrb.New(),
}
sc.cs[i] = c
}
return sc
}
// NewEnvironment constructs an Environment with the given parent to provide a
// fallback for finding variables. The parent may be nil.
func NewEnvironment(parent Environment) Environment {
e := new(environment)
e.writable = true
e.vars = llrb.New()
e.parent = parent
return e
}
// Returns a new task queue.
// The user could submit new task through channel ch.
func NewTaskQueue(ch <-chan Task) *TaskQueue {
ret := new(TaskQueue)
ret.tree = llrb.New(taskBefore)
ret.ch = ch
ret.waitTime = maxTime
return ret
}
// Add a term that can be searched on (append or create to an existing term)
func (rfs *RootFileSystem) SearchAddTerm(area string, term string, path string, version string) error {
searchIndex := rfs.ChangeCache.GetSearchIndex()
treeNode, ok := searchIndex.Terms[area]
var searchTree *SearchTree = &SearchTree{}
var err error
if !ok {
// Create a node for this tree
treeNode = rfs.BlockHandler.GetFreeBlockNode(SEARCHTREE)
searchIndex.Terms[area] = treeNode
searchTree.Tree = llrb.New()
searchTree.Node = treeNode
// Need to save the searchTree back
rfs.ChangeCache.SaveSearchIndex(searchIndex)
} else {
searchTree, err = rfs.ChangeCache.GetSearchTree(treeNode)
if err != nil {
return err
}
}
// Now we have a search tree, add the term
var searchItem = SearchEntry{term, nil}
existingValue := searchTree.Tree.Get(searchItem)
var pointValue SearchEntry
if existingValue != nil {
pointValue = existingValue.(SearchEntry)
} else {
pointValue = SearchEntry{term, make([]Entry, 0)}
}
entry := Entry{path, version}
pointValue.Matches = append(pointValue.Matches, entry)
searchTree.Tree.ReplaceOrInsert(pointValue)
// And save this searchTree back
rfs.ChangeCache.SaveSearchTree(searchTree)
return nil
}
// rebuildIndex does the work of regenerating the index
// with the given keys.
func rebuild(less llrb.LessFunc, keys <-chan string) *llrb.Tree {
tree := llrb.New(less)
for key := range keys {
tree.ReplaceOrInsert(key)
}
return tree
}
func (tdi *TripleDirectionIndex) GetOrCreate(d graph.Direction, id int64) *llrb.LLRB {
directionIndex := tdi.GetForDir(d)
if _, ok := directionIndex[id]; !ok {
directionIndex[id] = llrb.New()
}
return directionIndex[id]
}
func (this *Trellis) insert(t int, s *Bigram, sa *Bigram, kb int, p float64) {
i, ok := this.trl[t].Get(s)
if !ok {
TRACE(4, " Inserting. Is a new element, init list.", MOD_HMM)
m := llrb.New()
m.InsertNoReplace(NewElement(sa, kb, p))
this.trl[t].Insert(s, m)
} else {
TRACE(4, " Inserting. Not a new element, add. List size="+strconv.Itoa(i.(*llrb.LLRB).Len())+"/"+strconv.Itoa(this.kbest), MOD_HMM)
j := i.(*llrb.LLRB).Min()
if i.(*llrb.LLRB).Len() == this.kbest && p < j.(*Element).prob {
TRACE(4, " Not worth inserting", MOD_HMM)
return
}
i.(*llrb.LLRB).InsertNoReplace(NewElement(sa, kb, p))
if i.(*llrb.LLRB).Len() > this.kbest {
i.(*llrb.LLRB).Delete(i.(*llrb.LLRB).Min())
TRACE(4, " list too long. Last erased", MOD_HMM)
}
}
i, ok = this.trl[t].Get(s)
if ok && i.(*llrb.LLRB).Len() > 0 {
TRACE(4, "MAX:"+strconv.FormatFloat(i.(*llrb.LLRB).Max().(*Element).prob, 'f', -1, 64)+" MIN:"+strconv.FormatFloat(i.(*llrb.LLRB).Min().(*Element).prob, 'f', -1, 64), MOD_HMM)
}
}
// NewRegionCache creates a RegionCache.
func NewRegionCache(pdClient pd.Client) *RegionCache {
return &RegionCache{
pdClient: pdClient,
regions: make(map[RegionVerID]*Region),
sorted: llrb.New(),
}
}
// rebuildIndex does the work of regenerating the index
// with the given keys.
func rebuild(less LessFunction, keys <-chan string) *llrb.LLRB {
tree := llrb.New()
for key := range keys {
tree.ReplaceOrInsert(llrbString{s: key, l: less})
}
return tree
}
func NewQTask() *QTask {
return &QTask{
tree: llrb.New(),
qchan: make(chan Task, 30),
waitTime: maxTime,
mTask: make(map[string]Task),
}
}
// NewRegionCache creates a RegionCache.
func NewRegionCache(pdClient pd.Client) *RegionCache {
c := &RegionCache{
pdClient: pdClient,
}
c.mu.regions = make(map[RegionVerID]*Region)
c.mu.sorted = llrb.New()
return c
}
func BenchmarkSortedInsert_InsertNoReplace(b *testing.B) {
for i := 0; i < b.N; i++ {
tree := llrb.New()
for i := 0; i < len(fixture.SortedTestData); i++ {
tree.InsertNoReplace(llrbItem(fixture.SortedTestData[i]))
}
}
}
func BenchmarkInsert(b *testing.B) {
for i := 0; i < b.N; i++ {
tree := llrb.New()
for i := 0; i < len(fixture.TestData); i++ {
tree.ReplaceOrInsert(llrbItem(fixture.TestData[i]))
}
}
}
func newTreeBasedConnMap(maxNrConn, maxNrUsers, maxNrConnsPerUser int) connMap {
ret := new(treeBasedConnMap)
ret.tree = llrb.New()
ret.maxNrConn = maxNrConn
ret.maxNrUsers = maxNrUsers
ret.maxNrConnsPerUser = maxNrConnsPerUser
return ret
}
func main() {
tree := llrb.New()
tree.ReplaceOrInsert(llrb.Int(1))
tree.ReplaceOrInsert(llrb.Int(2))
tree.ReplaceOrInsert(llrb.Int(3))
tree.ReplaceOrInsert(llrb.Int(4))
tree.DeleteMin()
tree.Delete(llrb.Int(4))
tree.AscendGreaterOrEqual(tree.Min(), Print)
}
func (this *Set) Insert(item interface{}) {
bin := this.bins[this.hasher(item)]
if bin == nil {
bin = llrb.New(llrb.LessFunc(this.lesser))
this.bins[this.hasher(item)] = bin
}
if bin.ReplaceOrInsert(item) == nil {
this.count++
}
}
// NewRestrictedEnvironment constructs an Environment with the given set of
// mappings. The environment cannot be modified.
func NewRestrictedEnvironment(parent Environment, mapping map[Symbol]interface{}) Environment {
e := new(environment)
e.writable = false
e.vars = llrb.New()
for sym, val := range mapping {
item := newEnvItem(sym, val)
e.vars.ReplaceOrInsert(item)
}
e.parent = parent
return e
}
// There's no way back!
func (self *treeBasedConnMap) CloseAll() {
self.lock.Lock()
var nilcs *connSet
self.tree.AscendGreaterOrEqual(nilcs, func(i llrb.Item) bool {
if cs, ok := i.(*connSet); ok {
cs.CloseAll()
}
return true
})
self.tree = llrb.New()
}
// newMemoryTable constructs a MemoryTable instance.
func newMemoryTable(tableID int64, tableName string, cols []*table.Column, alloc autoid.Allocator) *MemoryTable {
name := model.NewCIStr(tableName)
t := &MemoryTable{
ID: tableID,
Name: name,
alloc: alloc,
Columns: cols,
recordPrefix: tablecodec.GenTableRecordPrefix(tableID),
tree: llrb.New(),
}
return t
}
func NewManager(helper MHelper) *IManager {
m := &IManager{}
m.sortedItems = llrb.New()
m.itemsByTid = make(map[string]*Item)
m.itemsById = make(map[int64]*Item)
m.itemsByTitle = make(map[string]*Item)
m.mutex = &sync.RWMutex{}
m.max_items = 120
m.max_show = 100
m.max_on_top = 5
m.max_comments = 20
m.h = helper
return m
}
func newCache(de time.Duration, m map[string]Item) *cache {
if de == 0 {
de = -1
}
c := &cache{
defaultExpiration: de,
items: m,
}
c.sortedItems = llrb.New()
for k, item := range m {
c.sortedItems.InsertNoReplace(Node{Key: k, Expiration: item.Expiration})
}
return c
}
// rebuildIndex does the work of regenerating the index
// according to the comparison function in the store.
func (s *OrderedStore) rebuildIndex() {
s.index = llrb.New(s.lf)
keyChan := s.Keys()
count, began := 0, time.Now()
for {
key, ok := <-keyChan
if !ok {
break // closed
}
s.index.ReplaceOrInsert(key)
count = count + 1
}
if count > 0 {
log.Printf("index rebuilt (%d keys) in %s", count, time.Since(began))
}
}
func BenchmarkIterate(b *testing.B) {
tree := llrb.New()
for i := 0; i < len(fixture.TestData); i++ {
tree.ReplaceOrInsert(llrbItem(fixture.TestData[i]))
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
min := tree.Min()
tree.AscendGreaterOrEqual(min, func(i llrb.Item) bool {
_ = i.(llrbItem).Key
_ = i.(llrbItem).Value
return true
})
}
}
func main() {
tree := llrb.New(lessInt)
tree.ReplaceOrInsert(1)
tree.ReplaceOrInsert(2)
tree.ReplaceOrInsert(3)
tree.ReplaceOrInsert(4)
tree.DeleteMin()
tree.Delete(4)
c := tree.IterAscend()
for {
u := <-c
if u == nil {
break
}
fmt.Printf("%d\n", int(u.(int)))
}
}
func TestQueryGets(t *testing.T) {
for i, test := range veraxDevices {
var err error
var vresults *llrb.Tree
if vresults, err = ReadVeraxResults(test.path); err != nil {
t.Errorf("#%d, %s: ReadVeraxResults error: %s", i, test.path, err)
}
var counter int
var uri, oids string
gresults := llrb.New(LessOID)
ch := vresults.IterAscend()
for {
r := <-ch
if r == nil {
break
}
counter += 1
if counter <= 3 { // TODO random number of oids, not hardcoded n
oid := r.(QueryResult)
oids += "," + oid.Oid
} else {
uri = `snmp://[email protected]:` + strconv.Itoa(test.port) + "//(" + oids[1:] + ")"
counter = 0 // reset
oids = "" // reset
params := &QueryParams{
Uri: uri,
Version: GNET_SNMP_V2C,
Timeout: 200,
Retries: 5,
Tree: gresults,
}
if _, err := Query(params); err != nil {
t.Errorf("Query error: %s. Uri: %s", err, uri)
}
}
}
CompareVerax(t, gresults, vresults)
}
}
func main() {
tree := llrb.New()
tree.ReplaceOrInsert(llrb.Int(1))
tree.InsertNoReplace(llrb.Int(1))
tree.ReplaceOrInsert(llrb.Int(2))
tree.ReplaceOrInsert(llrb.Int(3))
tree.InsertNoReplace(llrb.Int(3))
tree.InsertNoReplace(llrb.Int(2))
tree.ReplaceOrInsert(llrb.Int(4))
tree.DeleteMin()
tree.Delete(llrb.Int(4))
tree.AscendGreaterOrEqual(tree.Min(), func(item llrb.Item) bool {
i, ok := item.(llrb.Int)
if !ok {
return false
}
fmt.Println(int(i))
return true
})
}
func main() {
flag.Parse()
vals := rand.Perm(*size)
var t, v interface{}
v = vals
var stats runtime.MemStats
for i := 0; i < 10; i++ {
runtime.GC()
}
fmt.Println("-------- BEFORE ----------")
runtime.ReadMemStats(&stats)
fmt.Printf("%+v\n", stats)
start := time.Now()
if *gollrb {
tr := llrb.New()
for _, v := range vals {
tr.ReplaceOrInsert(llrb.Int(v))
}
t = tr // keep it around
} else {
tr := btree.New(*degree)
for _, v := range vals {
tr.ReplaceOrInsert(btree.Int(v))
}
t = tr // keep it around
}
fmt.Printf("%v inserts in %v\n", *size, time.Since(start))
fmt.Println("-------- AFTER ----------")
runtime.ReadMemStats(&stats)
fmt.Printf("%+v\n", stats)
for i := 0; i < 10; i++ {
runtime.GC()
}
fmt.Println("-------- AFTER GC ----------")
runtime.ReadMemStats(&stats)
fmt.Printf("%+v\n", stats)
if t == v {
fmt.Println("to make sure vals and tree aren't GC'd")
}
}
func IoRoutine(request <-chan *IoArgs, responce chan<- interface{}) {
log.Println("start IoRoutine")
sortPieces := llrb.New(ioLessFun)
for arg := range request {
//todo: sort by offset and batch process io
cnt := len(request)
//batch get request, then sort by offset
sortPieces.InsertNoReplace(arg)
for i := 0; i < cnt; i++ {
a := <-request
sortPieces.InsertNoReplace(a)
if a.ioMode == MODE_WRITE {
break
}
}
//batch process
if cnt > cap(request)/2 {
log.Println("io is busy, batch io count", cnt)
}
for {
min := sortPieces.DeleteMin()
if min == nil {
break
}
//log.Println("io offset", min.(*IoArgs).offset)
HandleIo(min.(*IoArgs))
responce <- min.(*IoArgs).context
}
}
log.Println("exit IoRoutine")
}
